GIS grounding and voltage-withstanding dual-purpose tool

Abstract

The utility model belongs to the field of high-voltage power transmission and distribution, and discloses a GIS grounding and voltage-withstanding dual-purpose tool, which can avoid the safety problem generated in the implementation process and remarkably reduce the labor cost, and comprises a tool basin, a tool contact seat, a tool housing and a grounding sliding rod, the tool basin is arranged on a flange channel in a shielding manner, and a central conductor is embedded in the tool basin; the tool contact seat is arranged on the tool basin through the center conductor, the tool housing covers the flange end face to form a closed clutch cavity, the tool housing is provided with a housing end face, the grounding sliding rod is movably inserted into the housing end face, the grounding sliding rod is provided with a conduction end located in the clutch cavity, and the grounding sliding rod is connected with the clutch cavity through movement. And the conducting end and the tool contact seat are conducted and coupled or disconnected.

Description

Technical Field

[0001] The utility model belongs to the field of high-voltage power transmission and distribution, and particularly relates to a GIS grounding and voltage-resistant dual-purpose tooling. Background Art

[0002] The GIS (Gas Insulated Switchgear, hereinafter referred to as "Gas Insulated Switchgear") inter-break insulation withstand voltage test is a critical test to ensure the safe operation of GIS equipment under high voltage conditions. This test is intended to verify whether the insulation performance between the inter-breaks of the GIS equipment meets the specified electrical strength requirements after installation or maintenance.

[0003] According to the national standard GB50150-2016, "Electrical Equipment Acceptance Test Standard for Electrical Installation Engineering," GIS circuit breakers and disconnectors must undergo both closed-circuit withstand voltage tests to ground and across the disconnection. This means that when the circuit breaker or disconnector is in the closed state, a power frequency withstand voltage test must be applied to the internal conductors, while the external housing is grounded and the predetermined insulation distance between the conductor ends and ground is maintained. In the open state, a power frequency withstand voltage test must be applied to one end of the disconnection, while the other end is grounded.

[0004] At present, the insulation withstand voltage test of GIS fracture is carried out manually. Therefore, there are problems of low safety in the implementation process and the labor cost is high due to manual operation. Utility Model Content

[0005] In view of the shortcomings of the existing technology, the utility model provides a GIS grounding and voltage-resistant dual-purpose tooling, which can avoid safety problems arising from the implementation process and significantly reduce labor costs.

[0006] In order to achieve the above purpose, the present invention provides the following technical solutions:

[0007] A GIS grounding and voltage-resistant dual-purpose tool is arranged on the flange end face of the GIS, the flange end face forms a flange channel, and the flange channel has a channel extension direction, which is characterized by comprising: a tool basin, which is shielded and arranged on the flange channel, in physical contact with the GIS shell, with a center conductor embedded therein, and the center conductor has a current-passing end face exposed to the internal environment of the GIS shell, a tool contact seat, which is arranged on the tool basin through the center conductor, a tool cover, which is covered on the outside of the flange end face, the tool cover and the work basin form a closed clutch chamber, the tool contact seat is located inside the clutch chamber, and the tool cover has a cover end face perpendicular to the channel extension direction, a grounding sliding rod, which is movably inserted on the cover end face along the channel extension direction, and has a conducting end and a grounding end respectively located inside and outside the clutch chamber, and the grounding sliding rod is moved to make the conducting end conductively coupled or disconnected with the tool contact seat.

[0008] Preferably, the tooling contact seat includes a main body, a connecting part and a contact shielding cover, the main body is arranged on the inner cavity conductor, the main body has a contact blind hole, the connecting part is inserted into the contact blind hole and is conductive with the main body, the connecting part has a conductive matching position corresponding to the conductive end along the extension direction of the channel, the contact shielding cover is located outside the main body and is covered on the connecting part, the contact shielding cover has a conductive relay part conductive with the conductive matching position, and the conductive relay part is used to conductively couple the conductive end and the conductive matching position.

[0009] Furthermore, the connecting portion has a hollow connecting column and an end sealing plate welded to the end of the connecting column. The connecting column is cylindrical. The end sealing plate is located inside the contact shield. The conductive fitting position is formed on the end sealing plate.

[0010] Furthermore, the conductive matching position is a threaded blind hole, and the contact shielding cover also has a relay conductive entity embedded in the conductive relay part. The relay conductive entity has a coupling threaded through hole corresponding to the conductive matching position. The contact shielding cover is arranged on the connecting part and conductively coupled with the connecting part through the coupling threaded through hole and the screw series cover of the conductive matching position.

[0011] Preferably, the present invention also includes a sliding assembly, which is coupled to the outer surface of the end face of the cover shell, and the sliding assembly includes two stable slide cylinders and a grounding sliding rod. The two stable slide cylinders are hollow, and two stable slide grooves are formed on the surface. The two stable slide grooves have a sliding groove section and two clamping groove sections. The sliding groove section extends along the extension direction of the channel. The clamping groove sections are connected to the sliding groove section. The extension directions of the clamping groove section and the sliding groove section are perpendicular, and the two clamping groove sections are parallel to each other. The grounding sliding rod is passed through the interior of the two stable slide cylinders, and the grounding sliding rod has a bent grounding end, and the grounding end is pulled out of the two stable slide cylinders from the two stable slide grooves. When the grounding end extends from one clamping groove section, the conducting end is conductively coupled with the tooling contact seat; when the grounding end extends from the other clamping groove section, the conducting end is disconnected from the tooling contact seat.

[0012] Furthermore, the utility model also includes a flange coupling plate, which is arranged on the end face of the cover and forms a static sealing mechanism with the end face of the cover through a sealing ring. An axial through hole is formed on the flange of the flange coupling plate. The flange of the flange coupling plate is inserted into the end parts of the two stable slide cylinders, and the grounding sliding rod extends into the interior of the tooling cover through the axial through hole.

[0013] Furthermore, a rigid sleeve and a sealing ring group are provided in the axial through hole. The rigid sleeve forms a guiding structure for the grounding sliding rod in the axial through hole, and the sealing ring group forms a dynamic sealing structure for the grounding sliding rod in the axial through hole.

[0014] Preferably, the present invention also includes an elastic conducting assembly, having a fixed cylinder, a restoring spring and a mushroom head contact rod, the fixed cylinder is inserted in the conducting end, and the conducting end is formed with a plug-in hole facing the flange end face along the extension direction of the channel, the mushroom head contact rod has an integrally formed plug-in rod portion and a mushroom head portion, the plug-in rod portion is elastically inserted in the plug-in hole by the restoring spring, and the mushroom head portion faces the tooling contact seat.

[0015] Furthermore, the plug-in hole is a two-section stepped hole, having a first hole section and a second hole section, and the first hole section is thicker and close to the flange end face; the inserted rod is a two-section stepped rod, having a first rod section and a second rod section, and the first rod section is thicker and close to the flange end face; the first rod section is inserted in the first hole section, and the second rod section is inserted in the second hole section, and the two ends of the restoring spring respectively abut against the stepped surfaces of the two sections of the stepped rod and the stepped surfaces of the two sections of the stepped holes.

[0016] Preferably, the end surface of the housing is further provided with a two-way air valve communicating with the clutch chamber.

[0017] Compared with the prior art, the beneficial effects of the present invention are:

[0018] 1. Because the GIS grounding and voltage-resistant dual-purpose tooling of the present invention includes a tooling basin, a tooling contact seat, a tooling cover and a grounding sliding rod, the tooling basin is shielded and set on the flange channel and has a center conductor embedded therein, the tooling contact seat is set on the tooling basin through the center conductor, the tooling cover is set on the outside of the flange end face to form a closed clutch chamber, and the tooling cover has a cover end face, the grounding sliding rod is movably inserted on the cover end face, the grounding sliding rod has a conducting end located inside the clutch chamber, and the grounding sliding rod moves to connect or disconnect the conducting end with the tooling contact seat. Before the test, the clutch chamber is fully filled with SF6, so that the working clutch chamber can greatly improve the insulation. The margin greatly improves the safety of the mechanism. When conducting a withstand voltage test, the circuit breaker or disconnector in the GIS is opened, and the grounding sliding rod is moved outside the clutch chamber at the same time to disconnect the conductive end from the tooling contact holder so that the GIS withstand voltage test can be carried out. When conducting a grounding test, the circuit breaker or disconnector in the GIS is closed, and the grounding sliding rod is moved outside the clutch chamber at the same time to connect the conductive end to the tooling contact holder so that the GIS grounding test can be carried out. In these two processes, the operator only needs to slide the grounding sliding rod, and no other operations are required. Therefore, the utility model can avoid safety problems arising from the implementation process and significantly reduce labor costs.

[0019] 2. Because the tooling contact seat of the present invention includes a main body, a connecting part and a contact shielding cover, the main body is arranged on the embedded conductor and has a contact blind hole, the connecting part is inserted into the contact blind hole and is conductive with the main body, the connecting part has a conductive matching position corresponding to the conductive end along the extension direction of the channel, the contact shielding cover is located outside the main body and covers the connecting part, the contact shielding cover has a conductive relay part conductive with the conductive matching position, the conductive relay part is used to conductively couple the conductive end and the conductive matching position, therefore, the main body of the present invention generally adopts the contact seat actually used, and the actually used components cannot be directly and effectively provided with a shielding cover outside thereof due to shape limitations, and by providing a contact shielding cover on the outside of the connecting part, the electric field in the clutch chamber is evenly distributed, so that the clutch chamber will not be broken down, further improving the safety of the mechanism.

[0020] 3. Because the connection part of the utility model has a connection column and an end sealing plate welded to the end of the connection column, the connection column is cylindrical, the end sealing plate is located inside the contact shield, and the conductive matching position is formed on the end sealing plate. Therefore, the utility model adopts a hollow structure to make the mechanism lighter.

[0021] 4. Because the utility model also includes a sliding assembly, the sliding assembly is coupled and arranged on the outer surface of the end face of the cover shell, the sliding assembly includes two stable slide cylinders and a grounding sliding rod, the two stable slide cylinders are hollow, and two stable slide grooves are formed on the surface, the two stable slide grooves have a sliding groove section and two clamping groove sections, the sliding groove section extends along the extension direction of the channel, the clamping groove sections are connected to the sliding groove section, the extension directions of the clamping groove section and the sliding groove section are perpendicular, and the two clamping groove sections are parallel to each other, the grounding sliding rod is passed through the interior of the two stable slide cylinders, the grounding sliding rod has a bent grounding end, and the grounding end is pulled from the two stable slides Two stable slides extend out of the slot, and when the grounding end extends out of one positioning slot section, the conducting end is conductively coupled with the tooling contact seat; when the grounding end extends out of the other positioning slot section, the conducting end is disconnected from the tooling contact seat, that is, by sliding the grounding sliding rod inside the two stable slides, and by sliding the grounding end into different positioning slot sections accordingly, the grounding sliding rod can form two different positioning positions in the two stable slides. Therefore, the utility model uses the two stable slides to make the grounding sliding rod conductively coupled or disconnected with the tooling contact seat, and when coupled or disconnected, the grounding sliding rod can be stably positioned.

[0022] 5. Because the present invention also includes a flange coupling plate, which is arranged on the end face of the cover and forms a static sealing mechanism with the end face of the cover through a sealing ring, an axial through hole is formed on the flange of the flange coupling plate, and the flange of the flange coupling plate is inserted into the end parts of the two stable slide cylinders, and the grounding sliding rod extends into the interior of the tooling cover through the axial through hole, and a rigid bushing and a sealing ring group are provided in the axial through hole. The rigid bushing forms a guide structure for the grounding sliding rod in the axial through hole, and the sealing ring group forms a dynamic sealing structure for the grounding sliding rod in the axial through hole. Therefore, the present invention uses the axial through hole and the rigid bushing to make the vibration generated by the grounding sliding rod during the movement process smaller.

[0023] 6. Because the present invention also includes an elastic conducting component, which has a fixed cylinder, a restoring spring and a mushroom head contact rod, the fixed cylinder is inserted in the conducting end, and the conducting end is formed with a plug-in hole facing the flange end face along the extension direction of the channel, and the mushroom head contact rod has an integrally formed plug-in rod portion and a mushroom head portion, and the plug-in rod portion is elastically inserted in the plug-in hole through the restoring spring, and the mushroom head portion faces the tooling contact seat. Therefore, when the grounding sliding rod of the present invention moves and contacts the shielding contact cover, the elastic mushroom head can buffer most of the contact impact of the connecting part, thereby making the impact softer and avoiding deformation of the shielding contact cover due to the impact.

[0024] 7. Because the cover end face of the utility model is also provided with a two-way gas valve connected to the clutch chamber, SF6 can be filled into or discharged from the clutch chamber through the two-way gas valve without the operator having to operate the clutch chamber. Therefore, the utility model can avoid safety accidents caused by the operator operating the high-pressure container. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a schematic diagram of a GIS grounding and voltage-resistant dual-purpose tooling according to an embodiment of the present utility model;

[0026] Figure 2 A cross-sectional view of a GIS grounding and voltage-resistant dual-purpose tooling according to an embodiment of the present utility model;

[0027] Figure 3 A schematic diagram of the cooperation between the connecting portion and the contact shielding cover of an embodiment of the present utility model;

[0028] Figure 4 A schematic diagram of a bi-stable slide cylinder according to an embodiment of the present invention;

[0029] Figure 5 Schematic diagram of the coordination of the elastic conductive component, tooling cover, flange coupling plate and sliding component according to an embodiment of the present invention.

[0030] In the figure: 100, GIS grounding and voltage-resistant dual-purpose tooling, A, flange channel, D, channel extension direction, 10, tooling basin, 11, center conductor, 11a, current-passing end face, 20, tooling contact seat, 21, main body, 21a, contact blind hole, 22, connecting part, 221, connecting column, 222, end sealing plate, 222a, conduction matching position, 23, contact shield, 231, relay conduction entity, 30, tooling cover, 30a, clutch chamber, 30b, cover end face, 40. Flange coupling plate, 40a. Rigid sleeve, R. Coupling ring, 50. Sliding assembly, 51. Two-stable slide cylinder, 511. Two-stable slide groove, 5111. Sliding groove section, 5112. Positioning groove section, 52. Grounding sliding rod, 52a. Conducting end, 52b. Connecting hole, 52c. Grounding end, 60. Elastic conducting assembly, 61. Fixed cylinder, 62. Restoring spring, 63. Mushroom head contact rod, 631. Inserting rod, 632. Mushroom head, 70. Two-way air valve. DETAILED DESCRIPTION

[0031] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the following examples and drawings specifically illustrate the GIS grounding and voltage-resistant dual-purpose tooling of the present invention. It should be noted that the description of these implementation methods is used to help understand the present invention, but does not constitute a limitation of the present invention.

[0032] like Figure 1 and Figure 2 As shown, the GIS grounding and voltage-resistant dual-purpose tool 100 in this embodiment is arranged on the flange end face (not shown in the drawings) of the GIS (not shown in the drawings). The flange end face forms a flange channel A, and the flange channel A has a channel extension direction D. Specifically, in a high-voltage power transmission and distribution system, a GIS is set as an inlet and outlet line interval, and among the components of the GIS, the circuit breaker or disconnector needs to undergo a voltage withstand test between the breakers and a grounding test of the shell. The GIS grounding and voltage-resistant dual-purpose tool 100 is set on the outside of the disconnector or circuit breaker by setting an external flange of the disconnector or circuit breaker in the GIS.

[0033] The GIS grounding and voltage-resistant dual-purpose tool 100 includes a tool basin 10 , a tool contact base 20 , a tool cover 30 , a flange coupling plate 40 , a sliding assembly 50 , an elastic conductive assembly 60 and a two-way air valve 70 .

[0034] The tooling basin 10 is shielded and set on the flange channel A, and the tooling basin 10 is in physical contact with the GIS shell. A center conductor 11 is embedded in the tooling basin 10, and the center conductor 11 has a current-passing end face 11a exposed to the internal environment of the GIS shell. In this embodiment, the tooling basin 10 is an insulating basin.

[0035] The tooling contact base 20 includes a main body 21 , a connecting portion 22 and a contact shield 23 .

[0036] The main body 21 is disposed on the tooling tray 10 via the central conductor 11 , and a contact blind hole 21 a is formed at one end of the main body 21 .

[0037] like Figure 3 As shown, the connecting portion 22 is inserted into the contact blind hole 21a and is connected to the main body 21. The connecting portion 22 has a hollow connecting column 221 and an end sealing plate 222 welded to the end of the connecting column 221, and the end is located outside the contact blind hole 21a.

[0038] The connecting column 221 is cylindrical, and the end sealing plate 222 is located inside the contact shielding cover 23. A conductive matching position 222a is formed on the surface, and the conductive matching position 222a is a threaded blind hole. Specifically, the hollow setting of the connecting column 221 is for lightweight structure. In this embodiment, due to the contact blind hole 21b on the main body 21, a corresponding electric field shielding cover needs to be set, but it is difficult to conveniently set the fixing structure of the shielding cover on the surface of the main body 21. Therefore, the connecting column 221 is set to facilitate the setting of a fixing structure for coupling the shielding cover.

[0039] The contact shield 23 is located outside the main body 21 and covers the connecting portion 22. The surface of the contact shield 23 has a concave conductive relay portion (not shown in the drawings) and a relay conductive entity 231 embedded in the conductive relay portion. The relay conductive entity 231 has a coupling threaded through hole (not shown in the drawings) corresponding to the conductive matching position 222a. The contact shield 23 is threadedly connected to the coupling threaded through hole and the conductive matching position at the same time, so that the contact shield 23 is covered on the connecting portion 22 and the contact shield 23 is conductively coupled with the connecting portion 22. Specifically, the connecting portion 22 has a portion inserted into the contact blind hole 21a and a portion located outside the contact blind hole 21a.

[0040] The tooling cover 30 is arranged outside the flange end face, and a closed clutch chamber 30a is formed between the tooling cover 30 and the work basin 10. The tooling contact seat 20 is located inside the clutch chamber 30a, and the tooling cover 30 has a cover end face 30b parallel to the flange end face. The cover end face 30b is provided with a two-way air valve 70 connected to the clutch chamber 30a, so that SF6 can be filled into the clutch chamber 30a or released from the clutch chamber 30a to the outside. Specifically, Figure 2 As shown, the tooling cover 30 is cylindrical, having a circumferential surface (not shown in the drawings) and a shell sealing plate (not shown in the drawings) detachably arranged on the edge of the circumferential surface, and the end face of the outer side of the shell sealing plate is the cover end face 30b.

[0041] like Figure 5As shown, the flange coupling plate 40 is arranged on the cover end face 30b and a static sealing mechanism is formed between it and the cover end face 30b through a sealing ring. An axial through hole is formed on the flange of the flange coupling plate 40, and a rigid sleeve 40a and a sealing ring group (not shown in the drawings) are arranged in the axial through hole.

[0042] The sliding assembly 50 is located outside the tooling cover 30 and is coupled to the cover end surface 30 b. The sliding assembly 50 includes two stable slide cylinders 51 and a grounding sliding rod 52 .

[0043] like Figure 4 As shown, the two stable slide cylinders 51 are hollow and are plug-coupled with the flange of the flange coupling plate 40 through a coupling ring R. Two stable slide grooves 511 are formed on the surface of the two stable slide cylinders 51. The two stable slide grooves 511 have a sliding groove section 5111 and two positioning groove sections 5112. The sliding groove section 5111 extends along the channel extension direction D. The two positioning groove sections 5112 are both connected to the sliding groove section 5111. The extension directions of the positioning groove section 5112 and the sliding groove section 5111 are perpendicular to each other, and the two positioning groove sections 5112 are parallel to each other.

[0044] The grounding sliding rod 52 is passed through the interior of the two stable slide cylinders 51 and extends into the interior of the tooling cover 30 through the axial through-hole of the flange coupling plate 40, so that it can be movably inserted on the cover end face 30b along the channel extension direction D. The grounding sliding rod 52 has a conducting end 52a and a grounding end 52c respectively located inside and outside the clutch chamber, and the conducting end 52a is formed with a plug hole 52b facing the flange end face along the channel extension direction D.

[0045] In the axial through-hole of the flange coupling plate 40, the rigid sleeve forms a guide structure for the grounding sliding rod 52 in the axial through-hole, and the sealing ring group forms a dynamic sealing structure for the grounding sliding rod 52 in the axial through-hole. The conducting end 52a corresponds to the conducting matching position 222a along the channel extension direction D, that is, when the conducting end 52a is coupled with the conducting matching position 222a, the conducting end 52a and the contact shield 23 do not directly impact the contact shield 23, but achieve conductive coupling with the conducting matching position 222a by impacting the contact relay conducting entity 231. In this embodiment, the impact position on the relay conducting entity 231 corresponding to the conducting end 52a is a countersunk structure, so that when the conducting end 52a impacts the relay conducting entity 231, the conducting end 52a only emits a non-frontal impact with a small area near the countersunk hole mouth, thereby greatly reducing the impact energy.

[0046] The grounding end 52c is a bent structure. The grounding end 52c moves to couple the conducting end 52a with the tooling contact base 20 or disconnect it from the tooling contact base 20. When the grounding end 52c extends from one positioning slot section 5112 and is locked in the positioning slot section 5112, the conducting end 52a is coupled with the tooling contact base 20; when the grounding end 52c extends from another positioning slot section 5112 and is locked in the positioning slot section 5112, the conducting end 52a is disconnected from the tooling contact base 20. Specifically, the grounding end 52c is grounded, thereby achieving grounding of the embedded conductor 11 or insulation from the ground.

[0047] The elastic conducting component 60 includes a fixing tube 61 , a restoring spring 62 and a mushroom-head contact rod 63 .

[0048] The fixing tube 61 is inserted into the plug hole 52b of the conducting end 52a. The plug hole 52b is a two-section stepped hole extending along the channel extension direction D, having a first hole section (not shown in the drawings) and a second hole section (not shown in the drawings), and the first hole section is thicker and close to the flange end face.

[0049] The mushroom head contact rod 63 includes an inserting rod portion 631 and a mushroom head portion 632 that are integrally formed.

[0050] The insertion rod 631 is elastically inserted into the insertion hole 52b through the return spring 62, and the mushroom head 632 faces the tooling contact seat 20. In this embodiment, when the conductive end 52a and the smaller area near the countersunk hole mouth impact, the arc-shaped contact surface further reduces the impact energy.

[0051] The inserted rod portion 631 is a two-section stepped rod extending along the channel extension direction D, having a first rod segment (not shown in the drawings) and a second rod segment (not shown in the drawings), and the first rod segment is thicker and close to the flange end face, the first rod segment is inserted in the first hole segment, and the second rod segment is inserted in the second hole segment, and the two ends of the restoring spring respectively abut against the stepped surfaces of the two sections of the stepped rod and the stepped surfaces of the two sections of the stepped holes.

[0052] The above-mentioned embodiments are preferred cases of the present invention and are not intended to limit the scope of protection of the present invention. Various deformations or modifications that can be made by ordinary technicians in this field without creative work within the scope of the attached claims are still within the scope of protection of this patent.

Claims

1. A GIS grounding and voltage-resistant dual-purpose tooling, which is arranged on the flange end face of the GIS, wherein the flange end face forms a flange channel, and the flange channel has a channel extension direction, characterized in that: include: The tooling basin is shielded and arranged on the flange channel, in physical contact with the GIS shell, and has a central conductor embedded therein, and the central conductor has a flow-through end face exposed to the internal environment of the GIS shell, The tooling contact seat is arranged on the tooling basin through the center conductor. The tooling cover is arranged on the outside of the flange end surface, the tooling cover and the tooling basin form a closed clutch chamber, the tooling contact seat is located inside the clutch chamber, and the tooling cover has a cover end surface perpendicular to the extension direction of the channel, A grounding sliding rod is movably inserted on the end surface of the housing along the extension direction of the channel, and has a conducting end and a grounding end respectively located inside and outside the clutch chamber. The grounding sliding rod moves so that the conducting end is coupled or disconnected with the tooling contact seat.

2. The GIS grounding and voltage-resistant dual-purpose tool according to claim 1, characterized in that: in, The tooling contact seat includes a main body, a connecting part and a contact shield. The main body is arranged on the central conductor, and has a contact blind hole. The connecting portion is inserted into the contact blind hole and is connected to the main body, and the connecting portion has a conducting matching position corresponding to the conducting end along the extending direction of the channel. The contact shield is located outside the main body and covers the connecting portion. The contact shield has a conductive relay portion conductively connected to the conductive matching position. The conductive relay portion is used to conductively couple the conductive end and the conductive matching position.

3. The GIS grounding and voltage-resistant dual-purpose tool according to claim 2, characterized in that: in, The connecting portion comprises a hollow connecting column and an end sealing plate welded to the end of the connecting column. The connecting column is cylindrical, the end sealing plate is located inside the contact shield, and the conductive matching position is formed on the end sealing plate.

4. The GIS grounding and voltage-resistant dual-purpose tool according to claim 3, characterized in that: in, The conductive matching position is a threaded blind hole, and the contact shield further has a relay conductive entity embedded in the conductive relay portion, and the relay conductive entity has a coupling threaded through hole corresponding to the conductive matching position. The contact shielding cover is arranged on the connecting portion through the coupling threaded through hole and the screw serial connection cover of the conductive matching position and is conductively coupled with the connecting portion.

5. The GIS grounding and voltage-resistant dual-purpose tool according to claim 1 is characterized in that: Also includes: A sliding assembly is coupled and arranged on the end surface of the housing, and the sliding assembly includes two stable slide cylinders and the grounding sliding rod. The two-stable slide cylinder is hollow, and a two-stable slide groove is formed on the surface. The two-stable slide groove has a sliding groove section and two blocking groove sections. The sliding groove section extends along the extension direction of the channel. The blocking groove sections are connected to the sliding groove section. The extension directions of the blocking groove section and the sliding groove section are perpendicular, and the two blocking groove sections are parallel to each other. The grounding sliding rod is arranged inside the two stable slide cylinders, and the grounding sliding rod has a bent grounding end, and the grounding end extends from the two stable slide cylinders through the two stable slide grooves. When the grounding end extends from one of the positioning slot sections, the conducting end is conductively coupled to the tooling contact seat; when the grounding end extends from the other positioning slot section, the conducting end is disconnected from the tooling contact seat.

6. The GIS grounding and voltage-resistant dual-purpose tool according to claim 5, characterized in that: Also includes: The flange coupling plate is arranged on the end face of the housing and forms a static sealing mechanism with the end face of the housing through a sealing ring. An axial through hole is formed on the flange of the flange coupling plate. The flange of the flange coupling plate is plugged into the ends of the two stable slide cylinders, and the grounding sliding rod extends into the interior of the tooling cover through the axial through hole.

7. The GIS grounding and voltage-resistant dual-purpose tool according to claim 6, characterized in that: in, A rigid sleeve and a sealing ring group are provided in the axial through hole. The rigid sleeve forms a guiding structure for the grounding sliding rod in the axial through hole, and the sealing ring group forms a dynamic sealing structure for the grounding sliding rod in the axial through hole.

8. The GIS grounding and voltage-resistant dual-purpose tool according to claim 1, characterized in that: Also includes: The elastic conducting component has a fixing cylinder, a return spring and a mushroom head contact rod. The fixing cylinder is inserted into the conducting end, and the conducting end is formed with a plug hole along the extending direction of the channel toward the flange end surface. The mushroom head contact rod has an integrally formed insertion rod portion and a mushroom head portion. The insertion rod is elastically inserted into the insertion hole through the restoring spring, and the mushroom head faces the tooling contact seat.

9. The GIS grounding and voltage-resistant dual-purpose tool according to claim 8, characterized in that: in, The plug-in hole is a two-stage stepped hole having a first hole section and a second hole section, and the first hole section is thicker and closer to the flange end face; The insertion rod portion is a two-section stepped rod having a first rod section and a second rod section, wherein the first rod section is thicker and closer to the flange end surface; The first rod segment is inserted into the first hole segment, the second rod segment is inserted into the second hole segment, and both ends of the restoring spring respectively abut against the step surfaces of the two stepped rods and the step surfaces of the two stepped holes.

10. The GIS grounding and voltage-resistant dual-purpose tool according to claim 1, characterized in that: in, The end surface of the cover shell is also provided with a two-way air valve communicated with the clutch chamber.

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