CN113253150A

CN113253150A - Grounding leakage current monitoring device

Info

Publication number: CN113253150A
Application number: CN202110651368.4A
Authority: CN
Inventors: 赵建民; 赵建涛
Original assignee: Shandong Leixun Intelligent Technology Co ltd
Current assignee: Shandong Leixun Intelligent Technology Co ltd
Priority date: 2021-06-11
Filing date: 2021-06-11
Publication date: 2021-08-13

Abstract

The invention provides a grounding leakage current monitoring device, which comprises a connector, a connecting seat, a clamping and fixing seat structure, a first grounding copper rod, a second grounding copper rod, a third grounding copper rod, a leakage current monitoring terminal, a protective cover, a radiating fin, a radiating fan, a movable adjusting cover structure, a sleeved fastening box structure, an installation fastening rod frame structure, a connecting copper plate and a connecting wire, wherein the connecting seat is integrally arranged at the left end of the connector, and the connecting seat is connected with the connecting copper plate through a bolt and a nut; the clamping fixing seat structure is respectively arranged on the right side of the lower end of the connector and the right lower part of the front end of the leakage current monitoring terminal. The invention has the beneficial effects that: through the setting of activity adjustment cover structure, be convenient for carry out the activity and adjust its length to shelter from the use connector and leakage current monitor terminal.

Description

Grounding leakage current monitoring device

Technical Field

The invention belongs to the technical field of leakage current monitoring, and particularly relates to a grounding leakage current monitoring device.

Background

The leakage current on the surface of the polluted insulator is the current which flows through the surface of the insulator after the polluted surface is affected with damp under the operation voltage, the leakage current is the result of the comprehensive action of three factors of voltage, climate (atmospheric pressure, temperature, humidity and the like) and pollution, and a monitoring device is installed on the existing device to monitor the leakage current, so that the safe use of the device is ensured.

However, the existing grounding leakage current monitoring device also has the problems that the device which is not convenient to match with the joint is protected and shielded, and the installation position is not convenient to assist in adjusting and is used and the fastening effect of the installation position is poor.

Therefore, it is very necessary to invent a ground leakage current monitoring device.

Disclosure of Invention

In order to solve the technical problems, the invention provides a grounding leakage current monitoring device, which aims to solve the problems that the conventional grounding leakage current monitoring device is inconvenient to be matched with a device at a joint for shielding, the installation position is inconvenient to be adjusted for use, and the fastening effect of the installation position is poor. The grounding leakage current monitoring device comprises a connector, a connecting seat, a clamping fixing seat structure, a first grounding copper rod, a second grounding copper rod, a third grounding copper rod, a leakage current monitoring terminal, a protective cover, a radiating fin, a radiating fan, a movable adjusting cover structure, a sleeved fastening box structure, a fastening rod frame structure, a connecting copper plate and a connecting wire, wherein the connecting seat is integrally arranged at the left end of the connector, and the connecting seat is connected with the connecting copper plate through a bolt and a nut; the clamping fixing seat structure is respectively arranged on the right side of the lower end of the connector and the right lower part of the front end of the leakage current monitoring terminal; the second grounding copper rod is respectively welded at the upper end and the lower end of the first grounding copper rod and the upper end of the third grounding copper rod, and the second grounding copper rod is inserted into the clamping fixing seat structure; a protective cover is mounted at the left end of the leakage current monitoring terminal through a hinge; the radiating fin bolt is arranged at the front end of the leakage current monitoring terminal, and the radiating fan is arranged on the radiating fin front end bolt; the movable adjusting cover structure is arranged on the left side of the sleeved fastening box structure; the sleeved fastening box structures are respectively arranged at the right ends of the connector and the leakage current monitoring terminal; the mounting and fastening rod frame structures are respectively mounted on the upper part and the lower part of the sleeved fastening box structure; the left end of the connecting copper plate is welded with a connecting wire; the mounting and fastening rod frame structure comprises a U-shaped threaded rod frame, extension threaded pipes, inserting rings, positioning bolts, clamping nuts and a protective pad, wherein the front side and the rear side of the left end of the U-shaped threaded rod frame are respectively in threaded connection with the extension threaded pipes; the penetrating ring is welded at the right end of the extension threaded pipe; the positioning bolt is in threaded connection with the inner outer side of the inserting ring; the clamping nut is in threaded connection with the left side of the outer wall of the extension threaded pipe; the right end of the protective pad is glued in the middle of the right side of the inner wall of the U-shaped threaded rod frame.

Preferably, the sleeved fastening box structure comprises an assembling plate, a sleeved plate, an inserting plate, a threaded long rod, a manual disc, a sliding rail and a supporting seat, wherein the assembling plate is welded at the right ends of the connector and the leakage current monitoring terminal respectively; the sleeve plates are respectively welded on the left side and the right side of the front end of the assembling plate; the penetration plate is welded at the front part of the outer wall of the socket plate, and the upper side and the lower side of the inside of the penetration plate are respectively penetrated and inserted with an extension threaded pipe; the threaded long rods are respectively in threaded connection with the middle parts of the left side and the right side of the interior of the sleeving connection plate; the manual disc is welded on the outer side of the threaded long rod; the sliding rails are respectively installed on the upper part and the lower part of the front surface of the assembling plate through bolts; the outside in the supporting seat inside inlay and have the screw thread stock.

Preferably, the movable adjusting cover structure comprises a three-stage expansion plate, a supporting block, a three-stage threaded pipe, a rotating block, a two-stage expansion pipe, an adjusting bolt and a supporting plate, wherein the three-stage expansion plate is mounted on the assembling plate through a bolt, and a connector is arranged on the inner side of the three-stage expansion plate; the supporting block bolt is arranged at the upper end of the three-stage expansion plate; the three-stage threaded pipes are respectively arranged in the supporting blocks through bearings; the rotating block is welded on the outer wall of the third-stage threaded pipe; the two-stage telescopic pipes are respectively installed on the middle left side and the right side of the upper part of the inner wall of the three-stage telescopic plate through bolts; the adjusting bolt is in threaded connection with the inner front side of the second-stage telescopic pipe; the supporting plate is welded at the lower end of the second-stage telescopic pipe.

Preferably, the clamping fixing seat structure comprises a sleeve plate, a T-shaped rod frame, a clamping disc, a wire holder, an assembling bolt and a clamping disc, wherein the sleeve plate is respectively installed on the right side of the lower end of the connector and the right lower part of the front end of the leakage current monitoring terminal through bolts; the T-shaped rod frame is in threaded connection with the lower side inside the sleeve plate, and meanwhile a clamping disc is movably embedded in the upper end of the T-shaped rod frame; the wire holder bolt is arranged on the upper side inside the sleeve plate; the assembling bolt is in threaded connection with the wire holder and the inner part of the clamping disc.

Preferably, the U-shaped threaded rod frame is matched with the inserting ring, and the positioning bolt inside the inserting ring abuts against the U-shaped threaded rod frame.

Preferably, two extending threaded pipes are arranged at the left end of the U-shaped threaded rod frame, and the inserting plates of the extending threaded pipes are matched.

Preferably, the two clamping nuts are arranged, the outer walls of the through inserting plates are respectively clamped by the clamping nuts, and the clamping nuts are supported by the extending threaded pipes.

Preferably, the socket joint plate of equipment board front side be provided with two, the interlude board of socket joint plate both sides about in seted up two through-holes.

Preferably, the threaded long rod and the manual disc are assembled to form a T shape, and the threaded long rod is movably connected with the supporting seat.

Preferably, the inner side of the front part of the supporting seat is provided with an arc-shaped groove, a straight anti-slip line is arranged in the groove in the supporting seat, and the rear part of the supporting seat is matched with the sliding track.

Preferably, the three-stage expansion plates are three, the three-stage expansion plates are respectively arranged in an inverted U shape, and the three-stage expansion plates are matched with the three-stage expansion plates.

Preferably, the number of the supporting blocks is three, the three-stage threaded pipes are supported by the bearings respectively, and the three-stage threaded pipes are in threaded connection with each other.

Preferably, the movable part of the second-stage telescopic pipe is fixed through an adjusting bolt, and meanwhile, a support plate at the lower end of the second-stage telescopic pipe is arc-shaped.

Preferably, the sleeve plate is U-shaped, the sleeve plate movably supports the T-shaped rod frame, and the clamping disc at the upper end of the T-shaped rod frame corresponds to the wire holder.

Preferably, the wire holder is L-shaped, and the wire holder is matched with the assembling bolt to be connected with the clamping disc.

Compared with the prior art, the invention has the beneficial effects that:

1. in the invention, the length of the U-shaped threaded rod frame and the extension threaded pipe can be adjusted, so that the U-shaped threaded rod frame and the extension threaded pipe can be sleeved at installation positions with different sizes for fixed use.

2. According to the invention, the arrangement of the inserting ring and the positioning bolt can reinforce the adjusted U-shaped threaded rod frame.

3. In the invention, the arrangement of the extension threaded pipe and the clamping nut is convenient for being connected with the inserting plate, thereby being assembled and used.

4. According to the invention, the assembling plate, the sleeving and connecting plate and the inserting plate are arranged, so that the assembling plate, the sleeving and connecting plate and the inserting plate can be sleeved at the installation position for fixing, and meanwhile, the assembling plate, the sleeving and connecting plate and the inserting plate are movably assembled by matching with other structures.

5. According to the invention, the threaded long rod and the manual disc are arranged, so that the support seat is moved and the position of the support seat is adjusted to be used in the rotating process.

6. According to the invention, the supporting seat and the sliding rail are arranged, so that the supporting seat can stably move, and the distance between the supporting seat and the supporting seat is adjusted, so that the supporting seat is matched to be more tightly attached to an installation position for installation and fixation.

7. According to the invention, the three-stage expansion plate is convenient to movably adjust the length, so that the connector and the leakage current monitoring terminal are protected and shielded.

8. According to the invention, the support block, the three-stage threaded pipe and the rotating block are arranged, so that manual operation is facilitated, and the length of the support block, the three-stage threaded pipe and the rotating block is adjusted by matching with a three-stage expansion plate.

9. In the invention, the arrangement of the two-stage telescopic pipe, the adjusting bolt and the supporting plate can assist the three-stage telescopic plate in supporting use in the use process.

10. In the invention, the sleeve plate, the T-shaped rod frame and the clamping disc are arranged, so that the second grounding copper rod connected with the sleeve plate can be fixed for use.

11. In the invention, the wire holder, the assembling bolt and the clamping disc are arranged, and can be connected with the grounding ends of the connector and the leakage current monitoring terminal for dismounting, mounting and fixing.

Drawings

Fig. 1 is a schematic structural view of the present invention.

Fig. 2 is a structural view of the structure of the mounting fastening bar frame of the present invention.

Fig. 3 is a schematic structural side view of the structure of the socketed fastening box of the present invention.

Fig. 4 is a schematic structural view of the structure of the movable adjusting cover of the invention.

Fig. 5 is a schematic structural view of the clip fixing base structure of the present invention.

In the figure:

1. a connector; 2. a connecting seat; 3. clamping the fixed seat structure; 31. sheathing; 32. a T-shaped pole frame; 33. clamping a disc; 34. a wire holder; 35. assembling the bolts; 36. clamping the disc; 4. a first grounding copper rod; 5. a second grounded copper bar; 6. a third grounded copper rod; 7. a leakage current monitoring terminal; 8. a protective cover; 9. a heat sink; 10. a heat dissipation fan; 11. a movable adjusting cover structure; 111. a third stage expansion plate; 112. a support block; 113. a third-stage threaded pipe; 114. rotating the block; 115. a second-stage telescopic pipe; 116. adjusting the bolt; 117. a support plate; 12. a sleeve joint fastening box structure; 121. assembling a plate; 122. sleeving and connecting plates; 123. inserting plates; 124. a threaded long rod; 125. a manual tray; 126. a sliding track; 127. a supporting seat; 13. installing a fastening rod frame structure; 131. a U-shaped threaded rod frame; 132. an extended threaded pipe; 133. inserting a ring; 134. positioning the bolt; 135. clamping a nut; 136. a protective pad; 14. connecting a copper plate; 15. and connecting the wires.

Detailed Description

The invention is further described below with reference to the accompanying drawings:

example (b):

as shown in fig. 1, the grounding leakage current monitoring device includes a connector 1, a connecting seat 2, a clamping and fixing seat structure 3, a first grounding copper rod 4, a second grounding copper rod 5, a third grounding copper rod 6, a leakage current monitoring terminal 7, a protective cover 8, a heat sink 9, a heat sink fan 10, a movable adjusting cover structure 11, a sleeved fastening box structure 12, a mounting and fastening rod frame structure 13, a connecting copper plate 14 and a connecting wire 15, wherein the connecting seat 2 is integrally arranged at the left end of the connector 1, and the connecting seat 2 is connected with the connecting copper plate 14 through bolts and nuts; the clamping fixed seat structure 3 is respectively arranged on the right side of the lower end of the connector 1 and the right lower part of the front end of the leakage current monitoring terminal 7; the second grounding copper rods 5 are respectively welded at the upper and lower ends of the first grounding copper rod 4 and the upper end of the third grounding copper rod 6, and meanwhile, the second grounding copper rods 5 are inserted into the clamping fixing seat structure 3; a protective cover 8 is hinged at the left end of the leakage current monitoring terminal 7; the radiating fin 9 is mounted at the front end of the leakage current monitoring terminal 7 through a bolt, and meanwhile, a radiating fan 10 is mounted at the front end of the radiating fin 9 through a bolt; the movable adjusting cover structure 11 is arranged on the left side of the sleeved fastening box structure 12; the sleeved fastening box structure 12 is respectively arranged at the right ends of the connector 1 and the leakage current monitoring terminal 7; the mounting and fastening rod frame structure 13 is respectively mounted at the upper part and the lower part of the sleeving and fastening box structure 12; the left end of the connecting copper plate 14 is welded with a connecting wire 15; when the leakage current monitoring device is used, one end of a connecting wire 15 is connected with the connector 1, the other end of the connecting wire is connected with a specified structure, in the using process, leakage current is transmitted through the connecting wire 15 and the connector 1 in a matched mode, then enters the leakage current monitoring terminal 7 for monitoring through the first grounding copper rod 4, the second grounding copper rod 5 and the third grounding copper rod 6, then enters the underground along with the leakage current monitoring terminal, and finally the leakage current monitoring terminal 7 conveys monitored data to complete monitoring.

As shown in fig. 2, in the above embodiment, specifically, the mounting and fastening rod frame structure 13 includes a U-shaped threaded rod frame 131, an extension threaded pipe 132, an inserting ring 133, a positioning bolt 134, a clamping nut 135 and a protection pad 136, wherein the front side and the rear side of the left end of the U-shaped threaded rod frame 131 are respectively connected with the extension threaded pipe 132 in a threaded manner; the penetrating ring 133 is welded at the right end of the extension threaded pipe 132; the positioning bolt 134 is in threaded connection with the inner outer side of the inserting ring 133; rotating the extension screw pipe 132 and the U-shaped screw rod frame 131 to a proper length, and simultaneously screwing the positioning bolt 134 on the outer wall of the inserting ring 133 for fixing; the clamping nut 135 is connected to the left side of the outer wall of the extension threaded pipe 132 in a threaded manner; the right end of the protection pad 136 is glued at the right middle part of the inner wall of the U-shaped threaded rod frame 131.

As shown in fig. 3, in the above embodiment, specifically, the sleeved fastening box structure 12 includes an assembling plate 121, a sleeved connecting plate 122, an inserting plate 123, a threaded long rod 124, a manual disc 125, a sliding rail 126 and a supporting seat 127, where the assembling plate 121 is welded at the right ends of the connector 1 and the leakage current monitoring terminal 7, respectively; the assembling plate 121 is sleeved at the installation position in cooperation with the sleeving plate 122, then the manual disc 125 is rotated to be matched with the threaded long rod 124 to rotate and drive the supporting seat 127 to move on the inner side of the sliding rail 126, and meanwhile, the supporting seat 127 is tightly attached to the installation position; the sleeve plates 122 are respectively welded on the left side and the right side of the front end of the assembling plate 121; the penetration plate 123 is welded at the front part of the outer wall of the sleeving and connecting plate 122, and the upper side and the lower side of the inside of the penetration and insertion plate 123 are respectively penetrated and inserted with an extension threaded pipe 132; sleeving the extension threaded pipe 132 at the installation position, inserting the extension threaded pipe into the penetrating plate 123, and finally screwing the clamping nut 135 to clamp and fix the penetrating inserting plate 123; the threaded long rod 124 is respectively in threaded connection with the middle parts of the left side and the right side inside the sleeving and connecting plate 122; the manual disk 125 is welded on the outer side of the threaded long rod 124; the sliding rails 126 are respectively bolted on the upper and lower parts of the front surface of the assembling plate 121; the outer side of the inside of the supporting seat 127 is embedded with a threaded long rod 124.

As shown in fig. 4, in the above embodiment, specifically, the movable adjusting hood structure 11 includes a third-stage telescopic plate 111, a supporting block 112, a third-stage threaded pipe 113, a rotating block 114, a second-stage telescopic pipe 115, an adjusting bolt 116 and a supporting plate 117, the third-stage telescopic plate 111 is mounted on an assembling plate 121 by a bolt, and a connector 1 is disposed inside the third-stage telescopic plate 111; after the assembly is completed, the three-stage telescopic plate 111 is installed on the assembly plate 121 through bolts and covers the connector 1 and the leakage current monitoring terminal 7 respectively, the two-stage telescopic pipe 115 in the three-stage telescopic plate 111 supports the connector 1 and the leakage current monitoring terminal 7 through the support plate 117, and then the protection can be completed by rotating the three-stage threaded pipe 113 and extending the three-stage telescopic plate 111; the supporting block 112 is mounted at the upper end of the third-stage expansion plate 111 through bolts; the three-stage threaded pipes 113 are respectively installed inside the supporting block 112 through bearings; the turning block 114 is welded on the outer wall of the third-stage threaded pipe 113; the second-stage telescopic pipe 115 is respectively installed on the middle left side and the right side of the upper part of the inner wall of the third-stage telescopic plate 111 through bolts; the adjusting bolt 116 is in threaded connection with the inner front side of the secondary telescopic pipe 115; the support plate 117 is welded to the lower end of the second stage telescopic tube 115.

As shown in fig. 5, in the above embodiment, specifically, the clamping fixing seat structure 3 includes a sleeve plate 31, a T-shaped rod frame 32, a clamping disc 33, a wire holder 34, an assembling bolt 35 and a clamping disc 36, where the sleeve plate 31 is respectively bolted on the right side of the lower end of the connector 1 and the right lower part of the front end of the leakage current monitoring terminal 7; the T-shaped rod frame 32 is in threaded connection with the lower side inside the sleeve plate 31, and meanwhile a clamping disc 33 is movably embedded in the upper end of the T-shaped rod frame 32; the wire holder 34 is mounted on the upper side of the inner part of the sleeve plate 31 through bolts; inserting the second grounding copper rods 5 at different positions between the wire holder 34 and the clamping disc 33, and then rotating the T-shaped rod frame 32 to enable the clamping disc 33 to match with the wire holder 34 to clamp the second grounding copper rods 5 to realize fixation; the assembly bolt 35 is threaded into the interior of the wire holder 34 and the clamping disk 36.

Principle of operation

The working principle of the invention is as follows: in the installation process, the assembling plate 121 is sleeved on the installation position in a matching manner with the sleeve plate 122, then the manual disc 125 is rotated to match with the threaded long rod 124 to rotate and drive the supporting seat 127 to move on the inner side of the sliding rail 126, meanwhile, the supporting seat 127 is tightly attached to the installation position, then, the extension threaded pipe 132 and the U-shaped threaded rod frame 131 are rotated to reach a proper length, meanwhile, the positioning bolt 134 on the outer wall of the inserting ring 133 is screwed to be fixed, then, the extension threaded pipe 132 is sleeved on the installation position and inserted into the inserting plate 123, finally, the clamping nut 135 is screwed to clamp and fix the inserting plate 123, after the installation is completed, the second grounding copper rods 5 at different positions are inserted between the wire holder 34 and the clamping plate 33, then, the T-shaped rod frame 32 is rotated to enable the clamping plate 33 to match with the wire holder 34 to clamp the second grounding copper rods 5 to realize the fixation, after the assembly, the third-stage expansion plate 111 is installed on the assembling plate 121 and respectively covers the connector 1 and the leakage current monitoring terminal 7, cover the time connector 1 and leakage current monitor terminal 7 are held to the flexible pipe 115 cooperation backup pad 117 of the inside second grade of tertiary expansion plate 111, later rotate tertiary screwed pipe 113 and cooperate the extension of tertiary expansion plate 111 to accomplish the protection, connecting wire 15 one end is connected with connector 1 when using, the appointed structure is connected to the other end, in the use, leakage current passes through the conveying of connecting wire 15 cooperation connector 1, later through first ground connection copper pole 4, second ground connection copper pole 5 and third ground connection copper pole 6 enter into leakage current monitor terminal 7 earlier and monitor, later then get into the underground thereupon, last leakage current monitor terminal 7 carries the work of accomplishing the monitoring with the data of monitoring.

The technical solutions of the present invention or similar technical solutions designed by those skilled in the art based on the teachings of the technical solutions of the present invention are all within the scope of the present invention.

Claims

1. The grounding leakage current monitoring device is characterized by comprising a connector (1), a connecting seat (2), a clamping fixing seat structure (3), a first grounding copper rod (4), a second grounding copper rod (5), a third grounding copper rod (6), a leakage current monitoring terminal (7), a protective cover (8), a radiating fin (9), a radiating fan (10), a movable adjusting cover structure (11), a sleeving and fastening box structure (12), a fastening rod frame structure (13), a connecting copper plate (14) and a connecting wire (15), wherein the connecting seat (2) is integrally arranged at the left end of the connector (1), and meanwhile, the connecting seat (2) is connected with the connecting copper plate (14) through a bolt and a nut; the clamping fixing seat structure (3) is respectively arranged on the right side of the lower end of the connector (1) and the right lower part of the front end of the leakage current monitoring terminal (7); the second grounding copper rods (5) are respectively welded at the upper end and the lower end of the first grounding copper rod (4) and the upper end of the third grounding copper rod (6), and meanwhile, the second grounding copper rods (5) are inserted into the clamping fixing seat structure (3); a protective cover (8) is hinged at the left end of the leakage current monitoring terminal (7); the radiating fin (9) is arranged at the front end of the leakage current monitoring terminal (7) through bolts, and meanwhile, a radiating fan (10) is arranged at the front end of the radiating fin (9) through bolts; the movable adjusting cover structure (11) is arranged on the left side of the sleeved fastening box structure (12); the sleeved fastening box structure (12) is respectively arranged at the right ends of the connector (1) and the leakage current monitoring terminal (7); the mounting and fastening rod frame structures (13) are respectively mounted at the upper part and the lower part of the sleeving and fastening box structure (12); the left end of the connecting copper plate (14) is welded with a connecting wire (15); the mounting and fastening rod frame structure (13) comprises a U-shaped threaded rod frame (131), extension threaded pipes (132), inserting rings (133), positioning bolts (134), clamping nuts (135) and protective pads (136), wherein the front side and the rear side of the left end of the U-shaped threaded rod frame (131) are respectively in threaded connection with the extension threaded pipes (132); the inserting ring (133) is welded at the right end of the extension threaded pipe (132); the positioning bolt (134) is in threaded connection with the inner outer side of the inserting ring (133); the clamping nut (135) is in threaded connection with the left side of the outer wall of the extension threaded pipe (132); the right end of the protective pad (136) is glued at the middle part of the right side of the inner wall of the U-shaped threaded rod frame (131).

2. The ground leakage current monitoring device according to claim 1, wherein the U-shaped threaded rod frame (131) is adapted to the inserting ring (133), and the positioning bolt (134) inside the inserting ring (133) abuts against the U-shaped threaded rod frame (131), two extending threaded pipes (132) are provided at the left end of the U-shaped threaded rod frame (131), and the extending threaded pipes (132) are adapted to the inserting plate (123).

3. The ground leakage current monitoring device according to claim 1, wherein two clamping nuts (135) are provided, and the clamping nuts (135) respectively clamp the outer wall of the insertion plate (123), while the clamping nuts (135) are supported by the extension screw pipes (132).

4. The ground leakage current monitor device according to claim 1, wherein said sleeved fastening box structure (12) comprises an assembling plate (121), a sleeved plate (122), a penetrating plate (123), a threaded rod (124), a manual plate (125), a sliding rail (126) and a supporting seat (127), said assembling plate (121) is welded at the right ends of the connector (1) and the leakage current monitor terminal (7), respectively; the sleeving and connecting plates (122) are respectively welded at the left side and the right side of the front end of the assembling plate (121); the through inserting plate (123) is welded at the front part of the outer wall of the sleeving and connecting plate (122), and meanwhile, the upper side and the lower side of the inside of the through inserting plate (123) are respectively inserted with an extending threaded pipe (132); the threaded long rod (124) is respectively in threaded connection with the middle parts of the left side and the right side inside the sleeving and connecting plate (122); the manual disc (125) is welded on the outer side of the threaded long rod (124); the sliding rails (126) are respectively installed on the upper part and the lower part of the front surface of the assembling plate (121) through bolts; the outer side of the inside of the supporting seat (127) is embedded with a threaded long rod (124).

5. The ground leakage current monitor according to claim 4, wherein there are two socket plates (122) on the front side of the assembling plate (121), two through holes are formed in the insertion plates (123) on the left and right sides of the socket plate (122), the threaded rod (124) is assembled with the manual plate (125) to form a T shape, and the threaded rod (124) is movably connected with the supporting seat (127).

6. The device according to claim 4, wherein an arc-shaped groove is formed on the inner side of the front portion of the supporting seat (127), a linear anti-slip pattern is arranged in the groove inside the supporting seat (127), and the rear portion of the supporting seat (127) is adapted to the sliding rail (126).

7. The ground leakage current monitoring device according to claim 1, wherein the movable adjusting cover structure (11) comprises a third-stage expansion plate (111), a support block (112), a third-stage threaded pipe (113), a rotation block (114), a second-stage expansion pipe (115), an adjusting bolt (116) and a support plate (117), the third-stage expansion plate (111) is bolted to an assembly plate (121), and a connector (1) is arranged inside the third-stage expansion plate (111); the supporting block (112) is mounted at the upper end of the three-stage expansion plate (111) through bolts; the three-stage threaded pipes (113) are respectively arranged in the supporting block (112) through bearings; the rotating block (114) is welded on the outer wall of the three-stage threaded pipe (113); the two-stage telescopic pipe (115) is respectively installed on the middle left side and the right side of the upper part of the inner wall of the three-stage telescopic plate (111) through bolts; the adjusting bolt (116) is in threaded connection with the inner front side of the two-stage telescopic pipe (115); the support plate (117) is welded at the lower end of the second-stage telescopic pipe (115).

8. The ground leakage current monitoring device according to claim 7, wherein three third-stage expansion plates (111) are provided, the three third-stage expansion plates (111) are respectively provided with an inverted U-shape, the three third-stage expansion plates (111) are adapted to the third-stage expansion plates (111), three support blocks (112) are provided, the three third-stage threaded pipes (113) are supported by bearings, the three third-stage threaded pipes (113) are provided with three and are in threaded connection with each other, the movable portion of the second-stage expansion pipe (115) is fixed by an adjusting bolt (116), and the support plate (117) at the lower end of the second-stage expansion pipe (115) is provided with an arc shape.

9. The ground leakage current monitoring device according to claim 1, wherein said clamping holder structure (3) comprises a sleeve plate (31), a T-shaped bar frame (32), a clamping disc (33), a wire holder (34), an assembling bolt (35) and a clamping disc (36), said sleeve plate (31) is respectively bolted on the right side of the lower end of the connector (1) and the right lower part of the front end of the leakage current monitoring terminal (7); the T-shaped rod frame (32) is in threaded connection with the lower side inside the sleeve plate (31), and meanwhile a clamping disc (33) is movably embedded at the upper end of the T-shaped rod frame (32); the wire holder (34) is mounted on the upper side of the inner part of the sleeve plate (31) through bolts; the assembling bolt (35) is in threaded connection with the interior of the wire holder (34) and the clamping disc (36).

10. The ground leakage current monitor according to claim 9, wherein said cover plate (31) is configured in a U-shape, said cover plate (31) movably supports a T-shaped rod frame (32), a clamping disc (33) at the upper end of said T-shaped rod frame (32) corresponds to a wire holder (34), said wire holder (34) is configured in an L-shape, and said wire holder (34) is connected with a clamping disc (36) by means of a assembling bolt (35).