Insulation detection device for ring main unit body

Abstract

The invention relates to an insulation detection device for a ring main unit body, which belongs to the technical field of insulation detection and comprises a guide rail, a detection table, a moving structure and a detector. The detection table is placed below the guide rail, the moving structure is movably arranged on the detection table, the detector is arranged on the moving structure, and a bearing stand is arranged at the corner position of the guide rail. According to the insulation detection device of the ring main unit body, when the limiting table is gradually attached to the side plate, the hollow rubber cylinder is gradually attached to the side plate of the ring main unit, the hollow rubber cylinder moves towards the deep position of the first guide channel, the rubber T-shaped rod can act in the inner hollow cylinder due to the movement of the hollow rubber cylinder, and under the action of the middle-section type corrugated pipe, the insulation of the ring main unit body is detected. By means of the drawing characteristic, the hollow rubber cylinder can be subjected to vacuum treatment, and the stability of the ring main unit side plate during insulation detection can be guaranteed by means of the dual functions of the limiting pad and the hollow rubber cylinder.

Description

Technical Field

[0001] The invention belongs to the technical field of insulation detection, and in particular relates to an insulation detection device for a ring network cabinet. Background Art

[0002] The working principle of this insulation detection device is mainly based on the measurement of insulation resistance or insulation loss current. The insulation resistance or insulation loss current is calculated by applying a specific voltage (DC or AC) to the device or line under test and then measuring the current; However, when the ring main unit is transported to the testing location, the door or board of the ring main unit is transported to the designated location by transmission to facilitate rapid batch testing. Then, during the transportation or testing process, the detector will also contact the door or board, which will result in poor stability of the door or board during insulation testing, and the center of gravity will change. This is because the center of the testing part is adjusted in advance, which will result in errors in the computer information transmission where the error occurs, affecting the subsequent rework and maintenance work; In view of this, an insulation detection device for a ring main unit cabinet is proposed. Summary of the invention

[0003] The purpose of this section is to summarize some aspects of embodiments of the present invention and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the specification abstract and the invention title of this application to avoid blurring the purpose of this section, the specification abstract and the invention title, and such simplifications or omissions cannot be used to limit the scope of the present invention.

[0004] In view of the following technical problems in the prior art: when the ring main unit cabinet is transported to the inspection position, the cabinet door or panel of the ring main unit is transported to the designated position by transmission to facilitate rapid batch inspection, and then during the transportation process or during the inspection process, the detector will also contact the cabinet door or panel, which will cause the cabinet door or panel to have poor stability during insulation inspection and the center of gravity position will change. This is because the parameters of the center of the inspection part are adjusted in advance, which will cause errors in the computer information transmission where the error finally occurs, affecting the subsequent rework and maintenance work.

[0005] In order to solve the above technical problems, the present invention provides the following technical solutions: an insulation detection device for a ring main unit cabinet, comprising a guide rail, a detection platform, a mobile structure and a detector; the detection platform is placed below the guide rail, the mobile structure is movably arranged on the detection platform, the detector is arranged on the mobile structure, and a bearing frame is installed at the corner position of the guide rail; An outer cover is telescopically movable on the guide rail, a bearing platform and a movable column are fixedly installed in the middle of the outer cover, and limit platforms are movably arranged at both sides of the outer cover close to the bearing platform; The limit platform is provided with an adjustment module and a stabilization module, the adjustment module includes a second guide channel, a storage seat, a transverse displacement seat, a limit pad and a second hydraulic component, the second guide channel is reserved at the inner edge of the limit platform, the storage seat telescopically moves in the second guide channel, the transverse displacement seat telescopically moves in the storage seat, and the limit pad is docked with the portion of the transverse displacement seat facing the cabinet side plate; The stabilizing module comprises a guide channel 1, a hollow rubber tube, an elastic member and an inner hollow tube, wherein the guide channel 1 is milled on the inner edge of the limit platform, the guide channel 1 is distributed on the upper and lower sides of the guide channel 2, the hollow rubber tube telescopically moves in the guide channel 1, the elastic member is arranged at the position where the hollow rubber tube is in the guide channel 1, and another position of the elastic member is butted against the inner edge of the guide channel 1; A square frame is installed on the inner edge of the carrier frame near the detection platform, and a directional column is arranged in the square frame. A docking channel is milled on the inner hollow cylinder, and an outer cylinder is arranged at the outer position of the inner hollow cylinder near the docking channel. A convex column is arranged in the outer cylinder for directional telescopic movement.

[0006] As an optimal technical solution for the insulation detection device of a ring network cabinet, the inner hollow cylinder is docked at the back-to-back positions of a pair of limit platforms, a rubber T-rod is telescopically movable in the inner hollow cylinder, and the other part of the rubber T-rod is docked in a guide channel 1 and docked with the hollow rubber cylinder.

[0007] As a preferred technical solution for an insulation detection device for a ring main unit cabinet, a middle-section bellows is connected between the portion of the inner hollow cylinder facing the limit platform and the hollow rubber cylinder.

[0008] As a preferred technical solution for the insulation detection device of the ring main unit, a second boss is hingedly connected to the lower inner edge of the outer cylinder, and the opposite surfaces of the first boss and the second boss are composed of a high, a low and an inclined surface.

[0009] As a preferred technical solution for the insulation detection device of the ring network cabinet, a linkage bar is arranged on the side of the directional column facing the outer cylinder, and the linkage bar is intermittently provided with teeth. An external tooth column is hinged at the bottom of the outer cylinder, and the external tooth column is connected to the second convex column, and the external tooth column is meshed with the toothed part of the linkage bar.

[0010] As an optimal technical solution for an insulation detection device for a ring main unit cabinet, the protruding portion of the limit pad is a flexible pad, the second hydraulic component is arranged at the middle position of the limit platform, and the movable portion of the second hydraulic component is docked with the storage seat.

[0011] As an optimal technical solution for the insulation detection device of a ring network cabinet, a lead screw is hinged in the storage seat, a circular channel is milled on the transverse seat, and a thread pattern is milled on the inner edge of the circular channel. The lead screw is threadedly connected to the transverse seat through the thread pattern, a motor is docked at the edge of the storage seat, and the movable part of the motor is docked with the lead screw.

[0012] As an optimal technical solution for the insulation detection device of a ring network cabinet, a linkage arm 1 is hinged at the corner position of the support platform, a linkage arm 2 is hinged outside the movable column, and the linkage arm 1 and the linkage arm 2 are hinged to a limit platform toward the cabinet side panel.

[0013] As an optimal technical solution for the insulation detection device of the ring network cabinet, a hydraulic component 1 is installed above the outer cover, and a linkage platform is installed at the movable part of the hydraulic component 1. The linkage platform is directionally configured at the inner edge of the outer cover, and a linkage arm 3 is hinged at the edge of the linkage platform. The linkage arm 3 and the linkage arm 2 are in an articulated relationship.

[0014] As a preferred technical solution for an insulation detection device for a ring main unit cabinet, the moving structure includes motion mechanisms of X, Y and Z axes.

[0015] Beneficial effects of the present invention: 1. When the insulation detection device of the ring network cabinet gradually approaches the side plate by relying on the limit platform, the hollow rubber cylinder will gradually fit onto the side plate of the ring network cabinet, and the hollow rubber cylinder will move toward the depth of the guide channel 1. The cooperation of the elastic member and the hollow rubber cylinder can further limit the side plate. At this moment, the rubber T-bar can act on the inner hollow cylinder under the movement of the hollow rubber cylinder. Under the action of the middle-section bellows, the hollow rubber cylinder can be vacuumized by relying on the characteristics of pulling. At this moment, when the hollow rubber cylinder acts on the side plate of the ring network cabinet, the dual effects of the limit pad and the hollow rubber cylinder can be relied on to ensure the stability of the side plate of the ring network cabinet during insulation detection; 2. When the insulation detection device of the ring network cabinet is taken by the side plate and transported to the detection table, the part of the outer tooth column will rub against the linkage bar. Under the action of meshing, the outer tooth column rotates, and the convex column 2 moves synchronously. Under the action of the inclined planes of the convex column 2 and the convex column 1, the high surface position of the convex column 2 can lift the convex column 1. When it moves 180 degrees, the high surface of the convex column 2 corresponds to the high surface of the convex column 1. At this time, the top of the convex column 1 is in the inner hollow cylinder. At this time, the position of the rubber T rod will be limited. When the detector performs a touch test on the side plate, the elastic part will not play a role due to shaking, thereby improving the stability effect and detection accuracy of the ring network cabinet during insulation detection; 3. The insulation detection device of the ring network cabinet body relies on the limit table to move to the position of the ring network cabinet side plate, driving a pair of limit tables to move toward the edge of the side plate of the ring network cabinet. The limit pad will first fit with the edge of the side plate of the ring network cabinet. When there is a deviation in the coordinates of the side plate of the ring network cabinet, the motor drives the lead screw to change the position of the transverse seat. The limit pad is adjusted at this time to adjust the balance point position of the side plate of the ring network cabinet to ensure the accuracy of the ring network cabinet body during insulation detection.

[0016] Other features and advantages of the present invention will be described in the following description, and partly become apparent from the description, or understood by practicing the present invention. The purpose and other advantages of the present invention can be realized and obtained by the structures particularly pointed out in the description and the drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative labor. Among them: Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0018] Figure 2 It is a schematic cross-sectional view of the outer cover of the present invention.

[0019] Figure 3 The present invention is based on Figure 2 Enlarged diagram of the middle left half.

[0020] Figure 4 The present invention is based on Figure 3 Enlarged schematic diagram of the lower middle part.

[0021] Figure 5 The present invention is based on Figure 3 Schematic diagram of the connection relationship between the central directional column and the inner hollow cylinder.

[0022] Figure 6 It is a schematic cross-sectional view of the storage seat of the present invention.

[0023] Reference numerals: 10. Guide rail; 11. Test table; 12. Moving structure; 13. Detector; 14. Carrying frame; 20. Frame; 21. Orientation column; 22. Outer cylinder; 23. Docking channel; 24. Boss one; 25. Linkage bar; 26. Boss two; 27. Outer tooth column; 31. Outer cover; 32. Carrying table; 33. Movable column; 34. Linkage arm one; 35. Linkage arm two; 36. Limiting table; 37. Hydraulic component one; 38. Linkage table; 39. Linkage arm three; 40. Stabilizing module; 41. Guide channel one; 42. Hollow rubber cylinder; 43. Elastic component; 44. Rubber T-bar; 45. Inner hollow cylinder; 46. Middle section bellows; 51. Adjustment module; 52. Guide channel two; 53. Storage seat; 54. Transverse seat; 55. Limiting pad; 56. Hydraulic component two; 57. Screw; 58. Motor. DETAILED DESCRIPTION

[0024] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0025] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0026] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor is it a separate or selective embodiment that is mutually exclusive with other embodiments.

[0027] Secondly, the present invention is described in detail with reference to the schematic diagram. When describing the embodiments of the present invention in detail, for the sake of convenience, the cross-sectional diagrams showing the device structure will not be partially enlarged according to the general scale, and the schematic diagrams are only examples, which should not limit the scope of protection of the present invention. In addition, in actual production, the three-dimensional dimensions of length, width and depth should be included.

[0028] Example, see Figure 1 , an insulation detection device for a ring main unit cabinet, comprising a guide rail 10, a detection platform 11, a mobile structure 12 and a detector 13; the detection platform 11 is placed below the guide rail 10, the mobile structure 12 is movably arranged on the detection platform 11, the mobile structure 12 comprises a motion mechanism of the X, Y and Z axes, the detector 13 is arranged on the mobile structure 12, and a bearing frame 14 is installed at the corner position of the guide rail 10; Through the above contents, it can be achieved that: the limit table 36 tweezes the side plate of the ring main unit at the initial position, and the guide rail 10 transports the side plate of the ring main unit to the position of the detection table 11, and the detector 13 moves in different directions through the moving structure 12 on the detection table 11, so as to facilitate the detector 13 to detect various local positions of the side plate of the ring main unit; Reference Figure 2 and 3 An outer cover 31 is telescopically movable on the guide rail 10, a bearing platform 32 and a movable column 33 are fixedly installed in the middle of the outer cover 31, a linkage arm 1 34 is hinged at the corner position of the bearing platform 32, a linkage arm 2 35 is hinged outside the movable column 33, and the linkage arm 1 34 and the linkage arm 2 35 are hinged to a limiting platform 36 toward the side panel of the cabinet; a hydraulic component 1 37 is installed above the outer cover 31, and a linkage platform 38 is installed at the movable part of the hydraulic component 1 37. The linkage platform 38 is directionally configured at the inner edge of the outer cover 31, and a linkage arm 39 is hinged at the edge position of the linkage platform 38, and the linkage arm 39 and the linkage arm 2 35 are in a hinged relationship.

[0029] Through the above content, it can be achieved that: the position of the linkage platform 38 can be changed by relying on the hydraulic component 1 37, and the linkage arm 3 39 cooperates with the linkage arm 2 35 at this moment, and with the assistance of the linkage arm 1 34, the position of the limit platform 36 can be changed by linkage at this moment; Reference Figure 4 and 6 The limiting platform 36 is provided with an adjustment module 51 and a stabilizing module 40. The adjustment module 51 includes a guide channel 2 52, a storage seat 53, a transverse seat 54, a limit pad 55 and a hydraulic component 2 56. The guide channel 2 52 is reserved at the inner edge of the limiting platform 36. The storage seat 53 telescopically moves in the guide channel 2 52. The transverse seat 54 telescopically moves in the storage seat 53. The limit pad 55 is connected to the part of the transverse seat 54 facing the cabinet side plate, and the limit pad 55 has a flexible feature. The hydraulic component The second 56 is arranged at the middle position of the limit platform 36, the movable part of the hydraulic part 56 is connected to the storage seat 53, a lead screw 57 is hinged in the storage seat 53, a circular channel is milled on the transverse seat 54, and a thread pattern is milled on the inner edge of the circular channel, the lead screw 57 is threadedly connected to the transverse seat 54 through the thread pattern, a motor 58 is connected to the side position of the storage seat 53, and the movable part of the motor 58 is connected to the lead screw 57, wherein a sensor can be configured at the back of the bearing platform 32 to provide a basis for the operation of the motor 58; Through the above content, it can be achieved that: when the limit platform 36 moves to the position of the side plate of the ring network cabinet, a pair of limit platforms 36 are driven to move toward the edge of the side plate of the ring network cabinet, and the limit pad 55 will first fit with the edge of the side plate of the ring network cabinet. The limit pad 55 can avoid causing dents on the edge of the side plate of the ring network cabinet due to its own flexible characteristics. Relying on the sensor, the coordinates of the side plate of the ring network cabinet can be obtained at this time. At this time, the motor 58 can drive the lead screw 57 to change the position of the transverse displacement seat 54. The limit pad 55 is adjusted at this moment to adjust the balance point position of the side plate of the ring network cabinet to ensure the accuracy of the ring network cabinet body during insulation detection, and drive the hydraulic component 2 56 to work, and the limit platform 36 continues to move during this process; Reference Figure 4 The stabilizing module 40 includes a guide channel 1 41, a hollow rubber tube 42, an elastic member 43 and an inner hollow tube 45. The guide channel 1 41 is milled on the inner edge of the limiting platform 36. The guide channel 1 41 is distributed on the upper and lower sides of the guide channel 2 52. The hollow rubber tube 42 telescopically moves in the guide channel 1 41, wherein the side of the hollow rubber tube 42 facing the side plate is made of a flexible material. The elastic member 43 is arranged at the position of the hollow rubber tube 42 in the guide channel 1 41, and the other part of the elastic member 43 is docked with the inner edge of the guide channel 1 41. The inner hollow tube 45 is docked at the opposite back positions of a pair of limiting platforms 36. A rubber T-bar 44 is telescopically moved in the inner hollow tube 45, and the other part of the rubber T-bar 44 is docked to the guide channel 1 41 and docked with the hollow rubber tube 42. A middle-section bellows 46 is docked between the position of the inner hollow tube 45 facing the limiting platform 36 and the hollow rubber tube 42; Through the above contents, it can be achieved that: the limit platform 36 will gradually approach the side panel of the ring network cabinet, the hollow rubber tube 42 will gradually fit onto the side panel of the ring network cabinet, and the hollow rubber tube 42 will move toward the depth of the guide channel 41. The elastic member 43 will be deformed after being loaded at this time, and can rely on the hollow rubber tube 42 to limit the side panel of the ring network cabinet. At this moment, the rubber T-bar 44 can act on the inner hollow tube 45 due to the movement of the hollow rubber tube 42. Under the action of the middle-section bellows 46, the hollow rubber tube 42 can be vacuumized by relying on the pulling characteristics. At this moment, when the hollow rubber tube 42 acts on the side panel of the ring network cabinet, the dual effects of the limit pad 55 and the hollow rubber tube 42 can be relied on to ensure the stability of the side panel of the ring network cabinet during insulation detection.

[0030] Reference Figure 1 , 45. A square frame 20 is installed on the inner edge of the carrier 14 near the detection table 11, and a directional column 21 is arranged in the square frame 20. A docking channel 23 is milled on the inner hollow cylinder 45, and an outer cylinder 22 is arranged at the outer position of the inner hollow cylinder 45 near the docking channel 23. A convex column 1 24 is provided in the outer cylinder 22 for directional telescopic movement, wherein the convex column 1 24 can be reset by its own gravity without being affected by the convex column 26, and a convex column 26 is hinged at the lower part of the inner edge of the outer cylinder 22, and the opposite surfaces of the convex column 1 24 and the convex column 26 are composed of a high, a low and an inclined surface, and a linkage bar 25 is arranged on the side of the directional column 21 facing the outer cylinder 22, and the linkage bar 25 is intermittently provided with tooth patterns, and an outer tooth column 27 is hinged at the lower part of the outer cylinder 22, and the outer tooth column 27 is docked with the convex column 26, and the outer tooth column 27 is partially meshed with the tooth pattern of the linkage bar 25; The above contents can achieve that: after the side panel is taken by tweezing, the rubber T-bar 44 is located at the deepest part of the inner hollow cylinder 45, and at the same time, the lower surface of the second boss 26 corresponds to the higher surface of the first boss 24, the higher surface of the second boss 26 corresponds to the lower surface of the first boss 24, and the inclined surface of the second boss 26 corresponds to the inclined surface of the first boss 24. When the side panel of the ring network cabinet is transported to the inspection table 11 for inspection after being taken by tweezing, the position of the outer tooth column 27 will rub against the linkage bar 25, and the outer tooth column 27 will rotate under the action of meshing, and the second boss 26 will spiral at this time. Under the action of the inclined surfaces of the second boss 26 and the first boss 24, the higher surface position of the second boss 26 can move the first boss 24 to the lower surface of the second boss 26. 24 is lifted up. When it moves 180 degrees, the high surface of the second boss 26 corresponds to the high surface of the first boss 24. At this time, the top of the first boss 24 is in the inner hollow cylinder 45. At this moment, the position of the rubber T-bar 44 will be limited. When the detector 13 performs a touch detection on the side panel, the elastic member 43 will not play a role due to shaking, thereby improving the stability and detection accuracy of the ring network cabinet during insulation detection; the single-stage tooth pattern on the linkage bar 25 allows the second boss 26 to rotate one circle to facilitate the synchronous rotation of multiple second bosses 26. When reaching the precise position of the detection table 11, the outer tooth column 27 is in the middle position of the single-stage tooth pattern to ensure that the first boss 24 can be lifted up.

[0031] It should be understood that in the development of any actual implementation, as in any engineering or design project, numerous implementation-specific decisions may be made. Such a development effort may be complex and time-consuming, but for those of ordinary skill having the benefit of this disclosure, the development effort will be a routine task of design, fabrication, and production without undue experimentation.

[0032] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. An insulation detection device for a ring main unit cabinet, characterized in that: It includes a guide rail, a detection platform, a mobile structure and a detector; the detection platform is placed below the guide rail, the mobile structure is movably arranged on the detection platform, the detector is arranged on the mobile structure, and a bearing frame is installed at the corner position of the guide rail; An outer cover is telescopically movable on the guide rail, a bearing platform and a movable column are fixedly installed in the middle of the outer cover, and both sides of the outer cover close to the bearing platform are movably provided with limit platforms; The limit platform is provided with an adjustment module and a stabilization module, the adjustment module comprises a second guide channel, a storage seat, a transverse seat, a limit pad and a second hydraulic component, and the second guide channel is reserved at the inner edge of the limit platform; The stabilizing module comprises a guide channel 1, a hollow rubber cylinder, an elastic member and an inner hollow cylinder, wherein the guide channel 1 is milled on the inner edge of the limit platform, and the guide channel 1 is distributed on the upper and lower sides of the guide channel 2; A square frame is installed on the inner edge of the carrier frame near the detection platform, and a directional column is arranged in the square frame. A docking channel is milled on the inner hollow cylinder, and an outer cylinder is arranged at the outer position of the inner hollow cylinder near the docking channel. A convex column is arranged in the outer cylinder for directional telescopic movement.

2. The insulation detection device for a ring main unit according to claim 1, characterized in that: The hollow rubber tube telescopically moves in the guide channel one, the elastic member is arranged at the position where the hollow rubber tube is in the guide channel one, another portion of the elastic member is docked with the inner edge of the guide channel one, the inner hollow tube is docked at opposite back positions of a pair of limit platforms, a rubber T-rod is telescopically arranged in the inner hollow tube, and another portion of the rubber T-rod is docked in the guide channel one and docked with the hollow rubber tube.

3. The insulation detection device for a ring main unit according to claim 1, characterized in that: A middle section type bellows is connected between the portion of the inner hollow cylinder facing the limiting platform and the hollow rubber cylinder.

4. The insulation detection device for a ring main unit according to claim 1, characterized in that: A second convex column is hingedly connected below the inner edge of the outer cylinder, and the opposite surfaces of the first convex column and the second convex column are composed of a high surface, a low surface and an inclined surface.

5. The insulation detection device for a ring main unit according to claim 1, characterized in that: A linkage bar is arranged on the side of the directional column facing the outer cylinder, and teeth are intermittently arranged on the linkage bar. An external tooth column is hinged at the bottom of the outer cylinder, and the external tooth column is connected to the second convex column, and the external tooth column is meshed with the toothed part of the linkage bar.

6. The insulation detection device for a ring main unit according to claim 1, characterized in that: The storage seat telescopes in the guide channel 2, the transverse seat telescopes in the storage seat, the limit pad is connected to the part of the transverse seat facing the cabinet side panel, the protruding part of the limit pad is a flexible pad, the hydraulic component 2 is arranged in the middle position of the limit platform, and the movable part of the hydraulic component 2 is connected to the storage seat.

7. The insulation detection device for a ring main unit according to claim 1, characterized in that: A lead screw is hinged in the storage seat, a circular channel is milled on the transverse seat, and a thread pattern is milled on the inner edge of the circular channel. The lead screw is threadedly connected to the transverse seat through the thread pattern. A motor is docked at the edge of the storage seat, and the movable part of the motor is docked with the lead screw.

8. The insulation detection device for a ring main unit according to claim 1, characterized in that: A linkage arm 1 is hinged at a corner position of the bearing platform, a linkage arm 2 is hinged outside the movable column, and the linkage arm 1 and the linkage arm 2 are hinged to a limiting platform toward a side panel of the cabinet.

9. The insulation detection device for a ring main unit according to claim 1, characterized in that: A hydraulic component 1 is installed above the outer cover, and a linkage platform is installed at the movable part of the hydraulic component 1. The linkage platform is directionally configured at the inner edge of the outer cover, and a linkage arm 3 is hinged at the edge of the linkage platform. The linkage arm 3 and the linkage arm 2 are in an articulated relationship.

10. The insulation detection device for a ring main unit according to claim 1, characterized in that: The moving structure includes X-axis, Y-axis and Z-axis motion mechanisms.

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