An isolating switch detection device and isolating switch applied to a smart grid

Abstract

The application discloses a disconnecting switch detection equipment applied to a smart grid and a disconnecting switch, relates to the technical field of disconnecting switch detection, and is characterized in that one side of a disc is provided with a rotating position changing member, a guiding plate is installed on one side of a positioning frame above one of the conductive arms, an arc-shaped surface is arranged at an end of the guiding plate away from the positioning frame, and a correction detection member is installed on one side of a positioning frame above the other conductive arm. When the conductive arms rotate to close, one end of the guiding plate is turned to the inside of the limiting frame, and when only the first warning lamp is on, it is indicated that one end of the conductive arm in the disconnecting switch is fully contacted during closing. If the horizontal heights of the two conductive arms are not equal, the second warning lamp is on or the third warning lamp is on, so that the positions of the two conductive arms after closing can be accurately detected, and thus the detection accuracy is improved, the labor intensity of the staff is reduced, and the detection efficiency is improved.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of disconnecting switch detection, and particularly relates to a disconnecting switch detection device applied to a smart power grid and a disconnecting switch. BACKGROUND

[0002] As core switch equipment in a smart power grid power transmission and distribution system, disconnecting switches mainly undertake circuit isolation, switching operation and maintenance safety guarantee functions, are widely applied to key nodes such as transformer substations and power distribution rooms, and need to ensure the position accuracy of opening and closing after assembly, and the most important thing is to ensure the level of the active conductive arm and the passive conductive arm, which are in the same straight line during closing, and the spacing between the active conductive arm and the passive conductive arm after closing is not too large.

[0003] During detection, the worker's eyes are always looking at the meter ruler, and the worker's hands must control the active conductive arm and the passive conductive arm at the same time, and then another worker installs the linkage connecting rod device for controlling the active conductive arm and the passive conductive arm between the active conductive arm and the passive conductive arm, and the potential fault during assembly is predicted through correlation analysis of multiple detection results and state evaluation after assembly, the accuracy of the meter ruler measurement data is low, and the active conductive arm and the passive conductive arm after closing need to be measured in multiple directions by using the meter ruler, so that the labor intensity of the worker is increased, and the detection efficiency is reduced. SUMMARY

[0004] The application aims to solve the problems that the detection process is complicated and the detection efficiency is low, and provides a disconnecting switch detection device applied to a smart power grid and a disconnecting switch.

[0005] To achieve the above-mentioned purpose, the application provides the following technical scheme: a disconnecting switch detection device applied to a smart power grid, comprising a U-shaped connecting plate, a disc is fixedly connected to the bottom end of the U-shaped connecting plate, a rotating position changing piece is arranged on one side of the disc, a blocking plate is connected to one side of the disc through the rotating position changing piece, a clamping frame is arranged on one side of the U-shaped connecting plate, a double-thread rod is rotatably connected to the inner side of the clamping frame through a bearing, a limiting rod is arranged on one side of the double-thread rod on the inner side of the clamping frame, a clamping plate is sleeved on the double-thread rod, two U-shaped connecting plates are arranged, and a positioning frame is arranged on the top of each U-shaped connecting plate, the two U-shaped connecting plates are respectively installed on two conductive arms of a disconnecting switch by operating the rotating position changing piece, a guide plate is arranged on one side of the positioning frame above one of the conductive arms, an arc surface is arranged on the end of the guide plate away from the positioning frame, and a correction detection piece is arranged on one side of the positioning frame above the other conductive arm.

[0006] As a further further scheme of the present application: the top of the clamping plate is provided with a threaded hole matched with the bidirectional threaded rod, and one side of the clamping plate is provided with a through hole matched with the limiting rod.

[0007] As a further further scheme of the present application: the rotating displacement member comprises an insertion rod mounted on both sides of the blocking plate, one side of the disc is rotationally connected with a rotating disc through a bearing, the side of the rotating disc away from the disc is fixedly connected with a sleeve block, the insertion rod penetrates through the sleeve block, one side of the disc is provided with a first locking hole, the inside of the insertion rod is provided with a second locking hole, the outer wall of the sleeve block is inserted with a second locking pin extending to the inside of the second locking hole, one end of the second locking pin is mounted on a pull plate, one side of the pull plate is provided with a second extension spring connected with the outer wall of the sleeve block, both ends of the pull plate are provided with a first locking pin extending to the inside of the first locking hole, the outer wall of the sleeve block is provided with a first extension spring connected with the end of the insertion rod away from the blocking plate.

[0008] As a further further scheme of the present application: the correction detection member comprises a limiting frame located above the other U-shaped connecting plate and connected with the positioning frame, the top of the limiting frame is provided with a through slot penetrating to the bottom of the limiting frame, the side of the positioning frame away from the limiting frame is mounted with a first connecting cavity, one end of the first connecting cavity away from the positioning frame is mounted with a first warning lamp, the inside of the first connecting cavity is inserted with a rectangular connecting rod extending to the inside of the limiting frame, one end of the rectangular connecting rod is provided with a fifth extension spring connected with the inner wall of the first connecting cavity, the inner wall of the first connecting cavity is provided with a third movable contact located above the rectangular connecting rod, the top of the rectangular connecting rod is provided with a third stationary contact located inside the first connecting cavity, one end of the rectangular connecting rod is provided with a guide wheel located inside the limiting frame.

[0009] As a further further scheme of the present application: the correction detection member further comprises a second connecting cavity mounted on the top of one end of the guide wheel, the top of the second connecting cavity is mounted with a second warning lamp, the inner wall of the second warning lamp is inserted with a second locking pin extending below the second connecting cavity, the outside of the second locking pin is provided with a third extension spring connected with the bottom of the second connecting cavity, the top of the second locking pin is provided with a first movable contact located inside the second connecting cavity, the inner wall of the second connecting cavity is provided with a first stationary contact located above the first movable contact, one end of the guide wheel is mounted with a third connecting cavity, the bottom of the third connecting cavity is provided with a third warning lamp, the inside of the third connecting cavity is inserted with a first locking pin extending above the third connecting cavity, the outside of the first locking pin is provided with a fourth extension spring connected with the top of the third connecting cavity, the bottom end of the first locking pin is provided with a second movable contact located inside the third connecting cavity, the inner wall of the third connecting cavity is mounted with a second stationary contact located below the second movable contact.

[0010] As a further further scheme of the present application: the transverse central axis of the limiting frame is coaxial with the transverse central axis of the guide plate.

[0011] As a further further scheme of the present application: the third connecting cavity and the second connecting cavity are symmetrically arranged along the transverse central axis of the guide wheel, and the through groove is aligned with one end of the conductive arm away from the positioning frame.

[0012] As a further further scheme of the present application: the third movable contact piece, the external power supply, the third fixed contact piece are connected in series through the wire, the external power supply, the first movable contact piece, the first fixed contact piece are connected in series through the wire, and the external power supply, the second movable contact piece, the second fixed contact piece are connected in series through the wire.

[0013] As a further further scheme of the present application: the inner wall width of the through groove is greater than the outer wall diameter of the second connecting cavity and the third connecting cavity.

[0014] As a further further scheme of the present application: the isolator applied to the smart grid further comprises a mounting seat, two supporting seats are mounted on the top of the mounting seat, the two supporting seats are symmetrically arranged along the vertical central axis of the mounting seat, and the top of each supporting seat is provided with an insulator, one of the insulators is provided with a driving conductive arm at the top, and the other insulator is provided with a passive conductive arm at the top, the U-shaped connecting plate with a guide plate is located at the top of the passive conductive arm, and the U-shaped connecting plate with a limiting frame is located at the top of the driving conductive arm.

[0015] Compared with the prior art, the present application has the following advantages:

[0016] 1. By arranging the rotating displacement member, the U-shaped connecting plate is first buckled on the top of the conductive arm when the U-shaped connecting plate is installed, so that the inner bottom of the U-shaped connecting plate is attached to the top of the conductive arm, then the U-shaped connecting plate is pushed, so that the blocking plate is attached to one end of the conductive arm, at this time one end of the guide plate is flush with one end of the conductive arm, then the double-threaded rod is rotated, and the clamping plate is moved towards the center of the double-threaded rod through the rotation of the double-threaded rod, so that the clamping plate is attached to both sides of the conductive arm, thereby realizing the connection of the U-shaped connecting plate and the conductive arm, and installing two U-shaped connecting plates on different conductive arms, then pulling the pull plate to separate the first locking pin from the first locking hole, and simultaneously separating the second locking pin from the second locking hole, at this time the first extension spring moves the insertion rod under the elastic restoring force, so that the blocking plate moves away from the U-shaped connecting plate, and at this time the end of the insertion rod swings under the action of its own gravity, so that the blocking plate is turned to the lower side of the conductive arm, thereby preventing the blocking plate from hindering the combination of the conductive arms.

[0017] 2、By setting the correction detection piece, when the conductive arm rotates to close, one end of the guide plate will turn to the inside of the limiting frame, when only the first warning light is on, it shows that the conductive arm in the disconnecting switch is fully contacted in closing, if the horizontal height between the two conductive arms is not equal, at this time the guide plate will extrude the first or second pin through the slope on both sides when rotating, so as to make the third warning light or the second warning light on, when the second warning light is on, it shows that the horizontal height of the conductive arm with the guide plate is greater than the horizontal height of the conductive arm with the limiting frame, when the third warning light is on, it shows that the horizontal height of the conductive arm with the guide plate is less than the horizontal height of the conductive arm with the limiting frame, so the position of the two conductive arms after closing can be accurately detected, so not only improve the detection accuracy, but also reduce the labor intensity of the workers, improve the detection efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is the overall structure schematic diagram of the application;

[0019] Figure 2 It is the connecting schematic diagram of the guide plate and the U-shaped connecting plate of the application;

[0020] Figure 3 It is the connecting schematic diagram between the sleeve block and the disc of the application;

[0021] Figure 4 It is the connecting schematic diagram of the U-shaped connecting plate and the limiting frame of the application;

[0022] Figure 5 It is the connecting schematic diagram of the limiting frame and the guide wheel of the application;

[0023] Figure 6 It is the internal structure schematic diagram of the second connecting cavity and the third connecting cavity of the application;

[0024] Figure 7 It is the internal structure schematic diagram of the first connecting cavity of the application;

[0025] Figure 8 It is the connecting schematic diagram of the blocking plate and the U-shaped connecting plate of the application.

[0026] In the figure: 1, mounting seat; 2, support seat; 3, insulator; 4, active conductive arm; 5, passive conductive arm; 6, guide plate; 7, arc surface; 8, positioning frame; 9, blocking plate; 10, insertion rod; 11, sleeve block; 12, U-shaped connecting plate; 13, first telescopic spring; 14, clamping frame; 15, clamping plate; 16, limiting rod; 17, bidirectional threaded rod; 18, first locking hole; 19, disc; 20, rotating disc; 21, second locking hole; 22, first clamping pin; 23, second clamping pin; 24, second telescopic spring; 25, pull plate; 26, first connecting bin; 27, first warning light; 28, limiting frame; 29, rectangular connecting rod; 30, through slot; 31, guide wheel; 32, second connecting bin; 33, second warning light; 34, third telescopic spring; 35, fourth telescopic spring; 36, first bolt; 37, third connecting bin; 38, third warning light; 39, first static contact; 40, first dynamic contact; 41, second dynamic contact; 42, second static contact; 43, second bolt; 44, fifth telescopic spring; 45, third dynamic contact; 46, third static contact; 47, transmission. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0028] In the description of the present application, it should be noted that the orientations or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second", "third" are only for descriptive purposes and cannot be understood as indicating or implying relative importance. In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting", "arrangement" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be connected inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances. The embodiments of the present application will be described below according to the overall structure of the present application.

[0029] Please refer toFigures 1-8 In the embodiment of the present application, a disconnecting switch detection device applied to a smart grid comprises a U-shaped connecting plate 12, a disc 19 is fixedly connected to the bottom end of the U-shaped connecting plate 12, a rotating position changing member is arranged on one side of the disc 19, a blocking plate 9 is connected to one side of the disc 19 through the rotating position changing member, a clamping frame 14 is arranged on one side of the U-shaped connecting plate 12, a bidirectional threaded rod 17 is rotatably connected to the inner side of the clamping frame 14 through a bearing, a limiting rod 16 is arranged on the inner side of the clamping frame 14 and located on one side of the bidirectional threaded rod 17, a clamping plate 15 is sleeved on the bidirectional threaded rod 17, two U-shaped connecting plates 12 are arranged, and a positioning frame 8 is arranged on the top of each of the two U-shaped connecting plates 12, the two U-shaped connecting plates 12 are respectively arranged on two conducting arms of a disconnecting switch by operating the rotating position changing member, a guide plate 6 is arranged on one side of the positioning frame 8 above one of the conducting arms, an arc surface 7 is arranged on the end of the guide plate 6 away from the positioning frame 8, and a correction detection member is arranged on one side of the positioning frame 8 above the other conducting arm.

[0030] In the embodiment, the top of the clamping plate 15 is provided with a threaded hole matched with the bidirectional threaded rod 17, and one side of the clamping plate 15 is provided with a through hole matched with the limiting rod 16.

[0031] In the embodiment, the U-shaped connecting plate 12 is first buckled on the top of a conducting arm, then the blocking plate 9 is made to be attached to one end of the conducting arm by moving the U-shaped connecting plate 12, then the bidirectional threaded rod 17 is rotated, the clamping plate 15 is moved towards the center of the bidirectional threaded rod 17 by the rotation of the bidirectional threaded rod 17, so that the clamping plate 15 is attached to both sides of the conducting arm, thereby realizing the connection between the U-shaped connecting plate 12 and the conducting arm, and the two U-shaped connecting plates 12 are installed on different conducting arms, then the blocking plate 9 is rotated below the conducting arm by operating the rotating position changing member, then the conducting arm is closed, and the position of the conducting arm when the conducting arm is closed is determined by the operation of the arc surface 7 and the correction detection member.

[0032] Please refer to Figure 2 , Figure 3 , Figure 4 , Figure 8The rotating displacement member comprises plug rods 10 installed on both sides of the blocking plate 9, a rotating disc 20 is rotatably connected to one side of the disc 19 through a bearing, a sleeve block 11 is fixedly connected to the side of the rotating disc 20 away from the disc 19, the plug rod 10 penetrates through the sleeve block 11, a first locking hole 18 is formed in one side of the disc 19, a second locking hole 21 is formed in the inner side of the plug rod 10, a second catch pin 23 extending to the inner side of the second locking hole 21 is inserted into the outer wall of the sleeve block 11, one end of the second catch pin 23 is installed on a pull plate 25, a second extension spring 24 connected with the outer wall of the sleeve block 11 is arranged on one side of the pull plate 25, first catch pins 22 extending to the inner side of the first locking hole 18 are arranged at both ends of the pull plate 25, and a first extension spring 13 connected with the end of the plug rod 10 away from the blocking plate 9 is arranged on the outer wall of the sleeve block 11.

[0033] In the embodiment, when the U-shaped connecting plates 12 are installed, the U-shaped connecting plates 12 are first buckled on the top of the conductive arms, so that the inner bottom of the U-shaped connecting plate 12 is in close contact with the top of the conductive arm, then the U-shaped connecting plate 12 is pushed, so that the blocking plate 9 is in close contact with one end of the conductive arm, at this time, one end of the guide plate 6 is flush with one end of the conductive arm, then the bidirectional threaded rod 17 is rotated, the clamping plate 15 is moved to the center of the bidirectional threaded rod 17 through the rotation of the bidirectional threaded rod 17, so that the clamping plate 15 is in close contact with the two sides of the conductive arm, so as to realize the connection between the U-shaped connecting plate 12 and the conductive arm, so as to install two U-shaped connecting plates 12 on different conductive arms, then the pull plate 25 is pulled to separate the first catch pin 22 from the first locking hole 18, and the second catch pin 23 is separated from the second locking hole 21, at this time, the plug rod 10 is moved under the elastic restoring force of the first extension spring 13, so as to move the blocking plate 9 away from the U-shaped connecting plate 12, at the same time, since the first catch pin 22 is separated from the first locking hole 18, one end of the plug rod 10 swings under the action of its own gravity, so as to rotate the blocking plate 9 to the lower side of the conductive arm, thereby preventing the blocking plate 9 from hindering the combination of the conductive arms, at this time, the state of the conductive arms during closing is detected through the cooperation of the arc surface 7 and the correction detection member during closing, so as to judge whether the assembled disconnecting switch is qualified.

[0034] Please pay attention to Figure 2 , Figure 4 , Figure 5 , Figure 6 , Figure 7The correction detection piece comprises a limiting frame 28 located above the other U-shaped connecting plate 12 and connected with the positioning frame 8, a through slot 30 is formed in the top of the limiting frame 28 and extends to the bottom of the limiting frame 28, a first connecting bin 26 is installed on the side of the positioning frame 8 away from the limiting frame 28, a first warning lamp 27 is installed at the end of the first connecting bin 26 away from the positioning frame 8, a rectangular connecting rod 29 extending to the inside of the limiting frame 28 is inserted into the first connecting bin 26, a fifth telescopic spring 44 is arranged at one end of the rectangular connecting rod 29 and connected with the inner wall of the first connecting bin 26, a third movable contact 45 is arranged on the inner wall of the first connecting bin 26 and above the rectangular connecting rod 29, a third stationary contact 46 is arranged on the top of the rectangular connecting rod 29 and inside the first connecting bin 26, and a guide wheel 31 is arranged at one end of the rectangular connecting rod 29 and inside the limiting frame 28.

[0035] The correction detection piece further comprises a second connecting bin 32 installed on the top of one end of the guide wheel 31, a second warning lamp 33 is installed on the top of the second connecting bin 32, a second bolt 43 extending below the second connecting bin 32 is inserted into the inner wall of the second warning lamp 33, a third telescopic spring 34 is arranged on the outer side of the second bolt 43 and connected with the bottom of the second connecting bin 32, a first movable contact 40 is arranged on the top of the second bolt 43 and inside the second connecting bin 32, a first stationary contact 39 is arranged on the inner wall of the second connecting bin 32 and above the first movable contact 40, a third connecting bin 37 is installed at the bottom of one end of the guide wheel 31, a third warning lamp 38 is arranged on the bottom of the third connecting bin 37, a first bolt 36 extending above the third connecting bin 37 is inserted into the inner side of the third connecting bin 37, a fourth telescopic spring 35 is arranged on the outer side of the first bolt 36 and connected with the top of the third connecting bin 37, a second movable contact 41 is arranged at the bottom end of the first bolt 36 and inside the third connecting bin 37, and a second stationary contact 42 is arranged on the inner wall of the third connecting bin 37 and below the second movable contact 41.

[0036] The horizontal central axis of the limiting frame 28 is coaxial with the horizontal central axis of the guide plate 6, the third connecting bin 37 and the second connecting bin 32 are symmetrically arranged along the horizontal central axis of the guide wheel 31, the end of the through slot 30 away from the positioning frame 8 is aligned with one end of the conductive arm, the third movable contact 45, the third stationary contact 46, the first movable contact 40, the first stationary contact 39, and the second movable contact 41, the second stationary contact 42 are connected in series by wires, and the inner wall width of the through slot 30 is greater than the outer wall diameter of the second connecting bin 32 and the third connecting bin 37.

[0037] In the embodiment, when the conductive arms rotate to close, one end of the guide plate 6 will rotate to the inside of the limiting frame 28, at this time, the guide plate 6 will press the guide wheel 31 through the arc surface 7, if the two conductive arms are in the same straight line after closing, at this time, the guide plate 6 will make the rectangular connecting rod 29 move to the first connecting bin 26 when pressing the guide wheel 31, so as to make the third static contact 46 contact with the third dynamic contact 45, at this time, the first warning light 27 is powered on and bright, when only the first warning light 27 is bright, it indicates that the conductive arms in the disconnecting switch are fully contacted at one end after closing, if the horizontal height between the two conductive arms is not equal, at this time, the guide plate 6 will press the first bolt 36 or the second bolt 43 through the inclined surface on both sides when rotating, at this time, the second dynamic contact 41 is contacted with the second static contact 42 through the first bolt 36, so that the third warning light 38 is bright, similarly, if the guide plate 6 presses the second bolt 43, the second warning light 33 will be bright, when the second warning light 33 is bright, it indicates that the horizontal height of the conductive arm installed with the guide plate 6 is greater than the horizontal height of the conductive arm installed with the limiting frame 28, when the third warning light 38 is bright, it indicates that the horizontal height of the conductive arm installed with the guide plate 6 is less than the horizontal height of the conductive arm installed with the limiting frame 28, in this way, the positions of the two conductive arms after closing can be accurately detected, so as to improve the detection accuracy, reduce the labor intensity of the workers, improve the detection efficiency, and after the detection is completed, the U-shaped connecting plate 12 can be removed from the two conductive arms.

[0038] Please pay attention to Figure 1 The mounting seat 1 is provided with two support seats 2 on the top, the two support seats 2 are symmetrically arranged along the vertical central axis of the mounting seat 1, and the top of each support seat 2 is provided with an insulator 3. One of the insulators 3 is provided with a driving conductive arm 4 on the top, and the other insulator 3 is provided with a passive conductive arm 5 on the top. The U-shaped connecting plate 12 with a guide plate 6 is located on the top of the passive conductive arm 5, and the U-shaped connecting plate 12 with a limiting frame 28 is located on the top of the driving conductive arm 4. The two support seats 2 are drivingly connected through a transmission device 47.

[0039] In the embodiment, the operation of the transmission device 47 is driven by the external driver to drive the two support seats 2 to rotate the insulator 3, so as to drive the insulator 3 to rotate the driving conductive arm 4 and the passive conductive arm 5. The position of the driving conductive arm 4 and the passive conductive arm 5 after rotation is detected by the detection device on the driving conductive arm 4 and the passive conductive arm 5.

[0040] The above merely describes preferred specific embodiments of the present application, but the protection scope of the present application is not limited thereto, and any person skilled in the art, according to the technical solution and inventive concept of the present application, makes equivalent replacement or change within the technical range disclosed by the present application, which should be covered within the protection scope of the present application.

Claims

1. A disconnector detection device for smart grids, comprising a U-shaped web (12), characterized in that The bottom end of the U-shaped connecting plate (12) is fixedly connected with a disc (19), one side of the disc (19) is provided with a rotary switching part, one side of the disc (19) is connected with a blocking plate (9) through the rotary switching part, one side of the U-shaped connecting plate (12) is provided with a clamping frame (14), the inner side of the clamping frame (14) is rotatably connected with a bidirectional threaded rod (17) through a bearing, the inner side of the clamping frame (14) is provided with a limiting rod (16) located on one side of the bidirectional threaded rod (17), the bidirectional threaded rod (17) is sleeved with a clamping plate (15), the U-shaped connecting plate (12) is provided with two, the top of the two U-shaped connecting plates (12) is provided with a positioning frame (8), the two U-shaped connecting plates (12) are respectively installed on two conducting arms of the disconnecting switch by operating the rotary switching part, the positioning frame (8) on one side of the arc-shaped surface (7) of the guiding plate (6) is provided on the other conducting arm, and the positioning frame (8) on one side of the arc-shaped surface (7) of the guiding plate (6) is provided on the other conducting arm. The correcting detection part comprises a limiting frame (28) located above the other U-shaped connecting plate (12) and connected with the positioning frame (8), a through groove (30) penetrating through the bottom of the limiting frame (28) is formed in the top of the limiting frame (28), a first connecting cavity (26) is mounted on the side of the positioning frame (8) away from the limiting frame (28), a first warning lamp (27) is mounted on the end of the first connecting cavity (26) away from the positioning frame (8), a rectangular connecting rod (29) extending to the inner side of the limiting frame (28) is inserted into the first connecting cavity (26), a fifth extension spring (44) is arranged on one end of the rectangular connecting rod (29) and connected with the inner wall of the first connecting cavity (26), a third movable contact (45) is arranged on the inner wall of the first connecting cavity (26) and located above the rectangular connecting rod (29), a third stationary contact (46) is arranged on the top of the rectangular connecting rod (29) and located in the inner side of the first connecting cavity (26), and a guide wheel (31) is arranged on one end of the rectangular connecting rod (29) and located in the inner side of the limiting frame (28).

2. The disconnector detection device for smart grid according to claim 1, characterized in that, The top of the clamping plate (15) is provided with a threaded hole matched with the bidirectional threaded rod (17), and one side of the clamping plate (15) is provided with a through hole matched with the limiting rod (16).

3. The disconnector detection device for smart grid according to claim 1, characterized in that, The rotating shifter comprises a plug rod (10) mounted on both sides of the blocking plate (9), one side of the disc (19) is rotationally connected with a rotating disc (20) through a bearing, the side of the rotating disc (20) away from the disc (19) is fixedly connected with a sleeve block (11), the plug rod (10) penetrates through the sleeve block (11), one side of the disc (19) is provided with a first locking hole (18), the inner side of the plug rod (10) is provided with a second locking hole (21), the outer wall of the sleeve block (11) is inserted with a second bayonet (23) extending to the inner side of the second locking hole (21), one end of the second bayonet (23) is mounted on a pull plate (25), one side of the pull plate (25) is provided with a second extension spring (24) connected with the outer wall of the sleeve block (11), both ends of the pull plate (25) are provided with a first bayonet (22) extending to the inner side of the first locking hole (18), the outer wall of the sleeve block (11) is provided with a first extension spring (13) connected with the end of the plug rod (10) away from the blocking plate (9).

4. The disconnector detection device for smart grid according to claim 3, characterized in that, The correction detection part further comprises a second connecting cavity (32) mounted on the top of one end of the guide wheel (31), the top of the second connecting cavity (32) is mounted with a second warning light (33), the inner wall of the second warning light (33) is inserted with a second bolt (43) extending to the lower side of the second connecting cavity (32), the outer side of the second bolt (43) is provided with a third extension spring (34) connected with the bottom of the second connecting cavity (32), the top of the second bolt (43) is provided with a first movable contact (40) located in the inner side of the second connecting cavity (32), the inner wall of the second connecting cavity (32) is provided with a first stationary contact (39) located above the first movable contact (40), one end of the guide wheel (31) is mounted with a third connecting cavity (37) on the bottom, the bottom of the third connecting cavity (37) is provided with a third warning light (38), the inner side of the third connecting cavity (37) is inserted with a first bolt (36) extending to the upper side of the third connecting cavity (37), the outer side of the first bolt (36) is provided with a fourth extension spring (35) connected with the top of the third connecting cavity (37), the bottom end of the first bolt (36) is provided with a second movable contact (41) located in the inner side of the third connecting cavity (37), the inner wall of the third connecting cavity (37) is mounted with a second stationary contact (42) located below the second movable contact (41).

5. The disconnector detection device for smart grid according to claim 4, characterized in that, The transverse central axis of the limiting frame (28) is coaxial with the transverse central axis of the guide plate (6).

6. The disconnector detection device for smart grid according to claim 4, characterized in that, The third connecting cavity (37) and the second connecting cavity (32) are symmetrically arranged along the transverse central axis of the guide wheel (31), and one end of the through groove (30) away from the positioning frame (8) is aligned with one end of the conductive arm.

7. The disconnector detection device for smart grid according to claim 4, characterized in that, The third movable contact (45), the external power supply and the third stationary contact (46) are connected in series through wires, the external power supply, the first movable contact (40) and the first stationary contact (39) are connected in series through wires, and the external power supply, the second movable contact (41) and the second stationary contact (42) are connected in series through wires.

8. The disconnector detection device for smart grid according to claim 4, characterized in that, The inner wall width of the through groove (30) is greater than the outer wall diameter of the second connecting chamber (32) and the third connecting chamber (37).

9. An isolating switch applied to a smart grid, comprising the isolating switch detection device applied to a smart grid according to any one of claims 1-8, characterized in that, Further comprising a mounting seat (1), the top of the mounting seat (1) is provided with two support seats (2), the two support seats (2) are symmetrically arranged along the vertical central axis of the mounting seat (1), the top of each of the two support seats (2) is provided with an insulator (3), the top of one of the insulators (3) is provided with a driving conductive arm (4), the top of the other insulator (3) is provided with a passive conductive arm (5), a U-shaped connecting plate (12) with a guide plate (6) is located on the top of the passive conductive arm (5), a U-shaped connecting plate (12) with a limiting frame (28) is located on the top of the driving conductive arm (4), and the two support seats (2) are drivingly connected through a transmission device (47).

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