Anti-misoperation locking device for ground wire detection

Abstract

The invention provides a ground wire detection anti-misoperation locking device, and relates to the technical field of locking devices, the ground wire detection anti-misoperation locking device comprises a ground end clamp, an equipment end electromagnetic hitching piece and a locking control module, and the ground end clamp and the equipment end electromagnetic hitching piece are connected through a ground wire; the grounding end clamp is used for being connected with a grounding end, the equipment end electromagnetic hitching piece is used for achieving mechanical hitching with electrical equipment, and the locking control module is used for controlling the locking state of the equipment end electromagnetic hitching piece. Through cooperation of the grounding end clamp, the equipment end electromagnetic hitching piece and the locking control module, locking control over grounding operation is achieved, misoperation can be prevented to a certain degree, personnel safety in electrical equipment overhaul, maintenance and other operations is guaranteed, and line grounding faults or personal safety endangering caused by live-line grounding wire hitching are avoided.

Description

Technical Field

[0001] This invention belongs to the technical field of interlocking devices, specifically relating to a grounding wire detection anti-misoperation interlocking device. Background Technology

[0002] In electrical equipment inspection and maintenance, equipment grounding is a core technical measure to prevent electric shock and ensure personnel safety. The grounding operation process must strictly follow the three steps of "voltage detection → discharge → installation of grounding wire". Its core purpose is to eliminate residual charge on the equipment and prevent accidental power surges.

[0003] However, traditional grounding wires do not have an anti-accidental contact interlock function. If staff members neglect to check for voltage or make mistakes in the voltage checking operation, they may accidentally hang the grounding wire while the circuit is energized, which could lead to a grounding fault or directly endanger personal safety. Summary of the Invention

[0004] The present invention provides a grounding wire detection anti-misoperation interlocking device to solve at least one of the technical problems mentioned above.

[0005] To solve the above-mentioned technical problems, the present invention discloses a grounding wire detection anti-misoperation interlocking device, including a grounding end clamp, an equipment end electromagnetic connector and an interlocking control module, wherein the grounding end clamp and the equipment end electromagnetic connector are connected by a grounding wire;

[0006] The grounding terminal clamp is used to connect the grounding terminal, the equipment-end electromagnetic connector is used to achieve mechanical connection with electrical equipment, and the interlocking control module is used to control the interlocking state of the equipment-end electromagnetic connector.

[0007] Preferably, the interlocking control module includes a PLC control unit, a Hall effect sensing unit, and a residual voltage detection unit, and the PLC control unit is electrically connected to the Hall effect sensing unit, the residual voltage detection unit, and the electromagnetic connector at the device end.

[0008] Hall effect sensing unit, used to detect the current value of the grounding wire;

[0009] The residual voltage detection unit is used to detect the voltage to ground at the grounding wire equipment terminal;

[0010] The PLC control unit is used to control the electromagnetic connector at the device end for interlocking operation based on the detection values ​​of the Hall effect sensing unit and the residual voltage detection unit.

[0011] Preferably, the PLC control unit includes:

[0012] The signal conditioning subunit is used to condition the current signal I output by the Hall effect sensing unit. r and the voltage signal V output by the residual voltage detection unit rThe digital signal I is obtained by filtering, amplification, and analog-to-digital conversion. a and V a ;

[0013] The threshold comparison subunit is used to compare the conditioned digital signal I. a and V a Each is compared with the preset current threshold I th and voltage threshold V th Compare and generate comparison result R I and R V ;

[0014] The logical judgment subunit is used to make judgments based on the comparison result R. I and R V Generate interlock control signal S lock ;

[0015] Where S lock =R I ∪R V ∪ represents the logical OR operation, S lock When S = 1, the latching instruction is triggered. lock When = 0, release the locking command;

[0016] The safety timer subunit is used to control the interlocking signal S. lock Perform timing verification and output a valid interlocking control signal S. zlock ;

[0017] The execution drive subunit is used to perform operations based on the effective latching control signal S. zlock The locked state of the electromagnetic connector at the control equipment end:

[0018]

[0019] Preferably, the processing formula of the signal conditioning subunit is:

[0020] I a =K I I r +C I ;

[0021] V a =K V V r +C V Among them, K I and K V C represents the amplification factor for the current signal and the voltage signal, respectively. I and C V These are the offset correction values ​​for the current signal and the voltage signal, respectively.

[0022] Preferably, the comparison result generated by the threshold comparison subunit is:

[0023]

[0024] R I and R V These are the conditioned digital signals I and I. a and V a Each is compared with the preset current threshold I th and voltage threshold V th The comparison results.

[0025] Preferably, the safety timer subunit responds to the interlocking control signal S lock Perform timing verification and output a valid interlocking control signal S. zlock include:

[0026] When S lock The duration t exceeds the preset safety time t safe When this occurs, an effective interlocking control signal S is output. zlock Otherwise, no output will be provided.

[0027] Preferably, the electromagnetic connector at the device end includes a hook body and an electric locking component body. One end of the electric locking component body is rotatably connected to the hook body, and the other end of the electric locking component body is used to connect with the locking engagement component inside the hook body. The locking control module is electrically connected to the electric locking component body and the locking engagement component.

[0028] Preferably, the locking engagement assembly includes two symmetrically arranged locking blocks. The hook body has a connecting cavity for engaging with the electric locking component body. The locking blocks are slidably connected to a storage slot within the connecting cavity. An electromagnet is fixedly connected to the locking blocks, and an electromagnet is fixedly connected to the inner wall of the storage slot. Electromagnets one and two are connected by a compression elastic element. Both electromagnets one and two are electrically connected to the locking control module. The locking control module is used to control the energization of electromagnets one and two. The electric locking component body has two symmetrically arranged slots for engaging with the slots.

[0029] Preferably, it also includes a lockout status confirmation module, which includes:

[0030] The signal confirmation submodule of the interlocking control module is used to confirm the current interlocking status command of the interlocking control module;

[0031] The sensor acquisition submodule includes a pressure sensor installed on the locking block, used to acquire the pressure value of the locking block;

[0032] The status analysis and confirmation submodule is used to analyze the current status of the electromagnetic connector at the device end based on the received signals from the interlocking control module signal confirmation submodule and the sensor acquisition submodule, including:

[0033] When the current locking status command of the locking control module is locking, and the detection value of the pressure sensor is within the preset detection value range, the confirmation status is the locking in place status;

[0034] When the current locking status command of the locking control module is locking, but the detection value of the pressure sensor is less than the minimum threshold of the preset detection value range, the status is confirmed as locked but not in place.

[0035] When the current locking state command of the locking control module is locking, but the detection value of the pressure sensor is greater than the maximum threshold of the preset detection value range, the state is confirmed as locking but locking over-state.

[0036] When the current locking status command of the locking control module is non-locking and the detection value of the pressure sensor is zero, the status is confirmed as non-locking.

[0037] When the current locking status command of the locking control module is non-locking, but the detection value of the pressure sensor is not zero, the status is confirmed as a fault state of the electromagnetic connector at the equipment end.

[0038] The lighting driver submodule is used to control the indicator lights to display the status analysis results of the device-side electromagnetic connector based on the status analysis confirmation submodule.

[0039]

[0040] Preferably, it also includes an intelligent de-icing module. The de-icing module is used to sense the icing state of the connecting cavity and the end of the electric locking component body that mates with the connecting cavity. The inner wall of the connecting cavity and the end of the electric locking component body that mates with the connecting cavity are both provided with de-icing heating wires. When the icing state of the connecting cavity or the end of the electric locking component body that mates with the connecting cavity is sensed, the corresponding de-icing heating wire is activated.

[0041] Compared with the prior art, the present invention has the following beneficial effects:

[0042] This invention achieves interlocking control of grounding operations through the cooperation of grounding end clamps, equipment end electromagnetic connectors, and interlocking control modules. It can prevent misoperation to a certain extent, ensure the safety of personnel in electrical equipment inspection and maintenance, and avoid line grounding faults or personal safety hazards caused by connecting grounding wires while the circuit is energized. Attached Figure Description

[0043] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used in conjunction with embodiments of the invention to explain the invention and do not constitute a limitation thereof. In the drawings:

[0044] Figure 1 This is a schematic diagram of the overall structure of the grounding wire detection anti-misoperation interlocking device of the present invention;

[0045] Figure 2 For the present invention Figure 1 Sectional view at point AA.

[0046] In the diagram: 1. Grounding clamp; 2. Electromagnetic connector for equipment; 20. Hook body; 21. Electric locking body; 22. Locking block; 23. Connecting cavity; 24. Storage slot; 25. Electromagnet one; 26. Electromagnet two; 27. Compression elastic element; 28. Slot; 3. Grounding wire. Detailed Implementation

[0047] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0048] Furthermore, in this invention, the use of terms such as "first" and "second" is for descriptive purposes only and does not specifically refer to any order or sequence, nor is it intended to limit the invention. They are merely used to distinguish components or operations described using the same technical terms and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions and features of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. If a combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this invention.

[0049] The present invention provides the following embodiments.

[0050] Example 1

[0051] This invention provides a grounding wire detection anti-misoperation interlocking device, such as... Figure 1-2 As shown, it includes a grounding end clamp 1, an equipment end electromagnetic connector 2, and a locking control module. The grounding end clamp 1 and the equipment end electromagnetic connector 2 are connected by a grounding wire 3.

[0052] Grounding terminal clamp 1 is used to connect the grounding terminal, equipment end electromagnetic connector 2 is used to realize mechanical connection with electrical equipment, and interlocking control module is used to control the interlocking state of equipment end electromagnetic connector 2.

[0053] The working principle and beneficial effects of the above technical solution are as follows: When the current signal and voltage signal output by the grounding wire are within the current threshold and voltage threshold range, respectively, the interlocking control module controls the electromagnetic connector 2 at the device end to unlock, at which time the electromagnetic connector 2 at the device end can be connected to the device. When the current signal or voltage signal output by the grounding wire is greater than the corresponding current threshold and voltage threshold, the interlocking control module controls the electromagnetic connector 2 at the device end to interlock, at which time the electromagnetic connector 2 at the device end is in a state of interlocking. Figure 1 The state shown indicates that the electromagnetic connector 2 on the device side cannot be mechanically connected to the device side.

[0054] This invention achieves interlocking control of grounding operations through the cooperation of grounding end clamp 1, equipment end electromagnetic connector 2 and interlocking control module. It can prevent misoperation to a certain extent, ensure the safety of personnel in electrical equipment inspection and maintenance, and avoid grounding faults or personal safety hazards caused by connecting grounding wires while the circuit is energized.

[0055] Example 2

[0056] Based on Example 1, the interlocking control module includes a PLC control unit, a Hall effect sensing unit, and a residual voltage detection unit. The PLC control unit is electrically connected to the Hall effect sensing unit, the residual voltage detection unit, and the electromagnetic connector at the device end.

[0057] Hall effect sensing unit, used to detect the current value of ground wire 3;

[0058] The residual voltage detection unit is used to detect the voltage to ground at the grounding wire equipment terminal;

[0059] The PLC control unit is used to control the electromagnetic connector 2 at the device end for interlocking operation based on the detection values ​​of the Hall effect sensing unit and the residual voltage detection unit.

[0060] The working principle and beneficial effects of the above technical solution are as follows: This invention uses a Hall effect sensing unit and a residual voltage detection unit to detect the current value of the grounding wire 3 and the voltage to ground at the equipment end, respectively. The PLC control unit processes and judges the detected values, thereby realizing precise control of the locking state of the electromagnetic connector 2 at the equipment end. It can detect the live state and lock it in time when the staff forgets to check the voltage or makes a mistake in the voltage checking operation, effectively preventing the phenomenon of hanging the grounding wire while it is live. This improves the safety and reliability of the grounding operation and provides a more complete safety guarantee for electrical equipment inspection, maintenance and other operations.

[0061] Example 3

[0062] Based on Example 2, the PLC control unit includes:

[0063] The signal conditioning subunit is used to condition the current signal I output by the Hall effect sensing unit. r and the voltage signal V output by the residual voltage detection unit r The digital signal I is obtained by filtering, amplification, and analog-to-digital conversion. a and V a ;

[0064] The threshold comparison subunit is used to compare the conditioned digital signal I. a and V a Each is compared with the preset current threshold I th and voltage threshold V th Compare and generate comparison result R I and R V ;

[0065] The logical judgment subunit is used to make judgments based on the comparison result R. I and R V Generate interlock control signal S lock ;

[0066] Where S lock =R I ∪R V ∪ represents the logical OR operation, S lock When S = 1, the latching instruction is triggered. lock When = 0, release the locking command;

[0067] The safety timer subunit is used to control the interlocking signal S. lock Perform timing verification and output a valid interlocking control signal S. zlock ;

[0068] The execution drive subunit is used to perform operations based on the effective latching control signal S. zlock The locked state of electromagnetic connector 2 at the control device end:

[0069]

[0070] Preferably, the processing formula of the signal conditioning subunit is:

[0071] I a =K I I r +C I ;

[0072] V a =K V V r +C V Among them, K I and K V C represents the amplification factor for the current signal and the voltage signal, respectively. I and CV These are the offset correction values ​​for the current signal and the voltage signal, respectively.

[0073] Preferably, the comparison result generated by the threshold comparison subunit is:

[0074]

[0075] R I and R V These are the conditioned digital signals I and I. a and V a Each is compared with the preset current threshold I th and voltage threshold V th The comparison results.

[0076] Preferably, the safety timer subunit responds to the interlocking control signal S lock Perform timing verification and output a valid interlocking control signal S. zlock include:

[0077] When S lock The duration t exceeds the preset safety time t safe When this occurs, an effective interlocking control signal S is output. zlock Otherwise, no output will be provided.

[0078] The working principle and beneficial effects of the above technical solution are as follows: The signal conditioning subunit filters, amplifies, and performs analog-to-digital conversion on the current signal output by the Hall effect sensing unit and the voltage signal output by the residual voltage detection unit to obtain the digital signal I. a and V a The threshold comparison subunit compares the conditioned digital signal with preset current and voltage thresholds respectively, generating a comparison result R. I and R V The logic judgment subunit generates a latching control signal based on the comparison result. When S lock When S = 1, the latching instruction is triggered. lock When the value is 0, the lockout command is released. The safety timer subunit performs timing verification on the lockout control signal. When the lockout control signal S... lock The duration t exceeds the preset safety time t safe When this occurs, an effective interlocking control signal S is output. zlock Otherwise, the execution drive subunit will not output based on the valid latching control signal S. zlock The locking state of electromagnetic connector 2 at the control device end, S zlock Locking occurs when S = 1. zlock Unlocked when =0;

[0079] The signal conditioning subunit uses formula I a =K I I r+C I and V a =K V V r +C V The system processes current and voltage signals, performing filtering, amplification, and analog-to-digital conversion to improve signal accuracy and stability. The threshold comparison subunit accurately determines whether current and voltage exceed safe limits by comparing them to preset thresholds. The logic judgment subunit generates a blocking control signal via a logical OR operation; a blocking command is triggered whenever either current or voltage exceeds the threshold, improving the reliability of blocking control. The safety timer subunit performs timing verification on the blocking control signal, outputting a valid blocking control signal only when the duration of the blocking control signal exceeds a preset safe time, preventing false blocking due to momentary interference or misdetection, further enhancing system safety and stability. The execution drive subunit accurately controls the blocking state of the electromagnetic connector 2 at the equipment end based on the valid blocking control signal, ensuring blocking is implemented when needed and guaranteeing operational safety.

[0080] Example 4

[0081] Based on Embodiment 1, the device-side electromagnetic connector 2 includes a hook body 20 and an electric locking component body 21. One end of the electric locking component body 21 is rotatably connected to the hook body 20, and the other end of the electric locking component body 21 is used to connect with the locking engagement component inside the hook body 20. The locking control module is electrically connected to the electric locking component body 21 and the locking engagement component.

[0082] Preferably, the locking engagement assembly includes two symmetrically arranged locking blocks 22. The hook body 20 has a connecting cavity 23, which is used to cooperate with the electric locking component body 21. The locking blocks 22 are slidably connected in the receiving groove 24 in the connecting cavity 23. An electromagnet 1 25 is fixedly connected to the locking blocks 22. An electromagnet 26 is fixedly connected to the inner wall of the receiving groove 24. The electromagnet 1 25 and the electromagnet 26 are connected by a compression elastic element 27. Both the electromagnet 1 25 and the electromagnet 26 are electrically connected to the locking control module. The locking control module is used to control the energization of the electromagnet 1 25 and the electromagnet 26. The electric locking component body 21 has two symmetrically arranged slots 28, which are used to cooperate with the slots 28.

[0083] The working principle and beneficial effects of the above technical solution: When locking, the main body 21 of the electric locking component rotates to... Figure 1 At the position shown, the electric locking component body 21 and the connecting cavity 23 cooperate with each other. Then, the electromagnet 1 25 and the electromagnet 26 are de-energized. Under the action of the compression elastic element 27, the locking block 22 moves away from the receiving groove 24 and finally cooperates with the slot 28 to achieve locking.

[0084] The electromagnetic connector 2 at the equipment end has a reasonable structural design. Through the rotational connection between the main body 21 of the electric locking component and the main body 20 of the hook, as well as the setting of the locking cooperation component, the functions of mechanical connection and locking are realized. When locking, the locking block 22 is inserted into the slot 28 by the de-energization of the electromagnet and the compression of the elastic element 27. The structure is simple and reliable, which can ensure the firm connection between the electromagnetic connector 2 at the equipment end and the electrical equipment, prevent the device from falling off during operation, and improve the stability and safety of the device. At the same time, the structure is easy to operate and control, and can work in conjunction with the locking control module to realize automatic locking, which improves the efficiency and safety of grounding operation.

[0085] Example 5

[0086] Based on embodiment 4, a locking state confirmation module is also included, which includes:

[0087] The signal confirmation submodule of the interlocking control module is used to confirm the current interlocking status command of the interlocking control module;

[0088] The sensor acquisition submodule includes a pressure sensor installed on the locking block 22, which is used to acquire the pressure value of the locking block 22;

[0089] The status analysis and confirmation submodule is used to analyze the current status of the electromagnetic connector 2 at the device end based on the received signals from the interlocking control module signal confirmation submodule and the sensor acquisition submodule, including:

[0090] When the current locking status command of the locking control module is locking, and the detection value of the pressure sensor is within the preset detection value range, the confirmation status is the locking in place status;

[0091] When the current locking status command of the locking control module is locking, but the detection value of the pressure sensor is less than the minimum threshold of the preset detection value range, the status is confirmed as locked but not in place.

[0092] When the current locking state command of the locking control module is locking, but the detection value of the pressure sensor is greater than the maximum threshold of the preset detection value range, the state is confirmed as locking but locking over-state.

[0093] When the current locking status command of the locking control module is non-locking and the detection value of the pressure sensor is zero, the status is confirmed as non-locking.

[0094] When the current locking status command of the locking control module is non-locking, but the detection value of the pressure sensor is not zero, the status is confirmed as a fault state of the electromagnetic connector 2 at the equipment end.

[0095] The lighting driver submodule is used to control the indicator lights to display the status analysis results of the device-side electromagnetic connector 2 based on the status analysis confirmation submodule.

[0096]

[0097] The working principle and beneficial effects of the above technical solution are as follows: The setting of the interlocking status confirmation module realizes real-time monitoring and accurate judgment of the interlocking status of the electromagnetic connector 2 at the equipment end. By collecting the pressure value of the interlocking plug 22 through the pressure sensor and combining it with the instructions of the interlocking control module, the current status of the electromagnetic connector 2 at the equipment end can be comprehensively analyzed, including interlocking in place, not in place, over-interlocking, not interlocking, and faults. The lighting drive submodule intuitively displays these statuses through different indicator light states, which makes it convenient for staff to understand the operating status of the equipment in a timely manner. When abnormal states such as not in place, over-interlocking, or faults occur, they can be detected in time and corresponding measures can be taken to avoid safety accidents caused by abnormal interlocking status, improve the reliability and maintainability of the device, and provide more comprehensive protection for the safe operation of electrical equipment.

[0098] Example 6

[0099] Based on Embodiment 1, an intelligent de-icing module is also included. The de-icing module is used to sense the icing state of the connecting cavity 23 and the end of the electric locking component body 21 that mates with the connecting cavity 23. Both the inner wall of the connecting cavity 23 and the end of the electric locking component body 21 that mates with the connecting cavity 23 are provided with de-icing heating wires. When an icing state is sensed at the connecting cavity 23 or the end of the electric locking component body 21 that mates with the connecting cavity 23, the corresponding de-icing heating wire is activated.

[0100] The working principle and beneficial effects of the above technical solution are as follows: The intelligent ice-melting module solves the problem of possible icing between the connecting cavity 23 and the electric locking component body 21 in cold environments. By setting the ice-melting heating wire, heating is activated in time when icing is detected, which can quickly melt the ice layer and ensure the normal cooperation between the connecting cavity 23 and the electric locking component body 21. It avoids the inability of the electromagnetic connector 2 at the equipment end to lock or unlock properly due to icing, improves the adaptability and reliability of the device in cold environments, ensures the safe operation of electrical equipment inspection and maintenance under various environmental conditions, and extends the service life of the device.

[0101] Obviously, those skilled in the art can make various modifications and variations to this invention without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this invention and their equivalents, this invention also intends to include these modifications and variations.

Claims

1. A grounding wire detection anti-misoperation interlocking device, characterized in that: It includes a grounding end clamp (1), an equipment end electromagnetic connector (2) and a locking control module. The grounding end clamp (1) and the equipment end electromagnetic connector (2) are connected by a grounding wire (3). The grounding end clamp (1) is used to connect the grounding end, the equipment end electromagnetic connector (2) is used to realize the mechanical connection with the electrical equipment, and the locking control module is used to control the locking state of the equipment end electromagnetic connector (2).

2. The grounding wire detection anti-misoperation interlocking device according to claim 1, characterized in that: The interlocking control module includes a PLC control unit, a Hall effect sensing unit, and a residual voltage detection unit. The PLC control unit is electrically connected to the Hall effect sensing unit, the residual voltage detection unit, and the electromagnetic connector at the equipment end. Hall effect sensing unit, used to detect the current value of ground wire (3); The residual voltage detection unit is used to detect the voltage to ground at the grounding wire equipment terminal; The PLC control unit is used to perform a lockout operation on the electromagnetic connector (2) of the device end based on the detection value of the Hall effect sensing unit and the residual voltage detection unit.

3. The grounding wire detection anti-misoperation interlocking device according to claim 2, characterized in that: The PLC control unit includes: The signal conditioning subunit is used to condition the current signal I output by the Hall effect sensing unit. r and the voltage signal V output by the residual voltage detection unit r The digital signal I is obtained by filtering, amplification, and analog-to-digital conversion. a and V a ; The threshold comparison subunit is used to compare the conditioned digital signal I. a and V a Each is compared with the preset current threshold i th and voltage threshold V th Compare and generate comparison result R I and R V ; The logical judgment subunit is used to make judgments based on the comparison result R. I and R V Generate interlock control signal S lock ; Where S lock =R I ∪R V ∪ represents the logical OR operation, S lock When S = 1, the latching instruction is triggered. lock When = 0, release the locking command; The safety timer subunit is used to control the interlocking signal S. lock Perform timing verification and output a valid interlocking control signal S. zlock ; The execution drive subunit is used to perform operations based on the effective latching control signal S. zlock The locked state of the electromagnetic connector (2) at the control device end:

4. The grounding wire detection anti-misoperation interlocking device according to claim 3, characterized in that: The processing formula of the signal conditioning subunit is: I a =K I O r +C I ; V a =K V V r +C V Among them, K I and K V C represents the amplification factor for the current signal and the voltage signal, respectively. I and C V These are the offset correction values ​​for the current signal and the voltage signal, respectively.

5. The grounding wire detection anti-misoperation interlocking device according to claim 3, characterized in that: Comparison results generated by the threshold comparison subunit: R I and R V These are the conditioned digital signals I and I. a and V a Each is compared with the preset current threshold I th and voltage threshold V th The comparison results.

6. The grounding wire detection anti-misoperation interlocking device according to claim 3, characterized in that: The safety timer subunit controls the interlocking control signal S. lock Perform timing verification and output a valid interlocking control signal S. zlock include: When S lock The duration t exceeds the preset safety time t safe When this occurs, an effective interlocking control signal S is output. zlock Otherwise, no output will be provided.

7. The grounding wire detection anti-misoperation interlocking device according to claim 1, characterized in that: The equipment-side electromagnetic connector (2) includes a hook body (20) and an electric locking body (21). One end of the electric locking body (21) is rotatably connected to the hook body (20), and the other end of the electric locking body (21) is used to connect with the locking engagement component inside the hook body (20). The locking control module is electrically connected to the electric locking body (21) and the locking engagement component.

8. The grounding wire detection anti-misoperation interlocking device according to claim 7, characterized in that: The locking engagement assembly includes two symmetrically arranged locking blocks (22). The hook body (20) has a connecting cavity (23) for engaging with the electric locking component body (21). The locking blocks (22) are slidably connected in the storage groove (24) inside the connecting cavity (23). An electromagnet one (25) is fixedly connected to the locking blocks (22). An electromagnet two (26) is fixedly connected to the inner wall of the storage groove (24). The electromagnet one (25) and the electromagnet two (26) are connected by a compression elastic element (27). Both the electromagnet one (25) and the electromagnet two (26) are electrically connected to the locking control module. The locking control module is used to control the energization of the electromagnet one (25) and the electromagnet two (26). The electric locking component body (21) has two symmetrically arranged slots (28). The electromagnet one (25) and the electromagnet two (26) are used to engage with the slots (28).

9. The grounding wire detection anti-misoperation interlocking device according to claim 8, characterized in that: It also includes a lockout status confirmation module, which includes: The signal confirmation submodule of the interlocking control module is used to confirm the current interlocking status command of the interlocking control module; The sensor acquisition submodule includes a pressure sensor installed on the locking plug (22) for acquiring the pressure value of the locking plug (22); The status analysis and confirmation submodule is used to analyze the current status of the electromagnetic connector (2) at the device end based on the received signals from the interlocking control module signal confirmation submodule and the sensor acquisition submodule, including: When the current locking status command of the locking control module is locking, and the detection value of the pressure sensor is within the preset detection value range, the confirmation status is the locking in place status; When the current locking status command of the locking control module is locking, but the detection value of the pressure sensor is less than the minimum threshold of the preset detection value range, the status is confirmed as locked but not in place. When the current locking state command of the locking control module is locking, but the detection value of the pressure sensor is greater than the maximum threshold of the preset detection value range, the state is confirmed as locking but locking over-state. When the current locking status command of the locking control module is non-locking and the detection value of the pressure sensor is zero, the status is confirmed as non-locking. When the current locking status command of the locking control module is not locking, but the detection value of the pressure sensor is not zero, the status is confirmed as the fault status of the electromagnetic connector (2) at the equipment end. The lighting driver submodule is used to control the indicator lights to display the status analysis results of the device-side electromagnetic connector (2) of the status analysis confirmation submodule. Indicator light status 10. The grounding wire detection anti-misoperation interlocking device according to claim 7, characterized in that: It also includes an intelligent de-icing module, which is used to sense the icing state of the connecting cavity (23) and the end of the electric locking component body (21) that mates with the connecting cavity (23). The inner wall of the connecting cavity (23) and the end of the electric locking component body (21) that mates with the connecting cavity (23) are both provided with de-icing heating wires. When an icing state is sensed at the end of the connecting cavity (23) or the end of the electric locking component body (21) that mates with the connecting cavity (23), the corresponding de-icing heating wire is activated.

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