CN116131144A

CN116131144A - GIS equipment maintenance device and method thereof

Info

Publication number: CN116131144A
Application number: CN202211682279.7A
Authority: CN
Inventors: 纪红; 朱哲
Original assignee: Guangdong University of Petrochemical Technology
Current assignee: Guangdong University of Petrochemical Technology
Priority date: 2022-12-27
Filing date: 2022-12-27
Publication date: 2023-05-16

Abstract

The utility model provides a GIS equipment maintenance device and a GIS equipment maintenance method. GIS equipment overhauls device includes installation roof beam, two side support, electric hoist, lifting hook one and two lifting hooks two, two the equal fixed mounting of side support is in the bottom of installation roof beam, electric hoist fixed mounting has the bottom of installation roof beam, lifting hook one and two lifting hooks two all set up the below of electric hoist, two all seted up the mounting groove on the side support, two equal fixed mounting has the montant in the mounting groove, two equal slidable mounting has the sliding plate on the montant, two the equal fixed mounting in one side that the sliding plate is close to each other has frame one, two equal fixed mounting has cylinder one in the frame one. The GIS equipment maintenance device and the GIS equipment maintenance method have the advantages of preventing the equipment to be maintained from being inclined, shaking and the like, and improving the safety of the maintenance process.

Description

GIS equipment maintenance device and method thereof

Technical Field

The utility model relates to the technical field of equipment overhaul, in particular to a GIS equipment overhaul device and a GIS equipment overhaul method.

Background

The GIS equipment is gas-insulated metal-enclosed switchgear, it is by circuit breaker, disconnecting switch, earthing switch, mutual inductor, arrester, bus, connecting piece and terminal etc. make up, these equipment or parts are all sealed in the shell of metal ground to fill SF6 insulating gas of certain pressure in its inside, therefore, this kind of equipment operational reliability is high, maintenance work load is few, maintenance long high-voltage electrical equipment of cycle, its fault rate is lower, and when overhauling the maintenance is carried out to GIS equipment in the later stage, in order to make things convenient for people to carry out comprehensive and thorough maintenance to it, generally will hang whole GIS equipment directly, just so make people can encircle whole GIS equipment to carry out comprehensive maintenance work to it.

For example, patent document CN217555610U discloses a device for overhauling GIS equipment, which comprises a frame, a jack and a moving assembly; the moving assembly comprises a bottom plate, a rotating bearing, a rotating shaft, a rotating base, steering wheels and a handle, wherein two bottom plates are respectively arranged at two ends of the bottom of the frame, the steering wheels are arranged below the rotating base, the handle is further arranged on the outer side of the rotating base, so that the frame can rapidly move through the two steering wheels at the bottom, the rotating base can rotate with the bottom plate through the rotating shaft and the rotating bearing, the handle is pulled, the moving direction can be conveniently adjusted, the rapid transfer of the frame is enabled, and the convenience of a GIS equipment maintenance device is improved.

The utility model can hoist the whole GIS equipment for comprehensive maintenance, but because the GIS equipment is in a suspended state after being hoisted, the GIS equipment is easy to incline, shake and the like, therefore, maintenance staff can be interfered by the conditions in the maintenance process, inconvenience is brought to maintenance work, and most of the GIS equipment is metal parts, and the maintenance staff is easy to be bumped in the shaking process.

Therefore, it is necessary to provide a new device and method for overhauling GIS equipment to solve the technical problems.

Disclosure of Invention

The utility model solves the technical problem of providing a GIS equipment maintenance device and a GIS equipment maintenance method capable of preventing equipment to be maintained from being inclined, swayed and the like and improving safety in the maintenance process.

In order to solve the technical problems, the GIS equipment maintenance device comprises a mounting beam, two side brackets, an electric hoist, a first lifting hook and two second lifting hooks, wherein the two side brackets are fixedly arranged at the bottom of the mounting beam, the electric hoist is fixedly arranged at the bottom of the mounting beam, the first lifting hook and the two second lifting hooks are respectively arranged below the electric hoist, mounting grooves are respectively formed in the two side brackets, vertical rods are fixedly arranged in the mounting grooves, sliding plates are respectively and slidably arranged on the two vertical rods, a first frame is fixedly arranged on one side, close to each other, of the two sliding plates, a first cylinder is fixedly arranged in the first frame, the output shafts of the two first cylinders are respectively and fixedly connected with the corresponding first frame, connecting plates are respectively and fixedly arranged on the output shafts of the first cylinders, two connecting plates are respectively arranged between the two connecting plates, three corresponding compression springs are respectively and fixedly arranged on one sides, far away from each other, and the corresponding compression springs are respectively and fixedly connected with one ends of the corresponding compression springs.

Preferably, two equal fixed mounting in one side that side support kept away from each other has two transverse tables, four fixed mounting has two box bodies on the transverse table, two all rotate in the box body and install the screw rod, two equal screw thread installs the loose joint piece on the screw rod, two equal fixed mounting in one side that the loose joint piece is close to each other has spacing piece, two spacing piece all with the corresponding sliding plate looks adaptation, two equal fixed mounting in top of box body has motor one, two the output shaft of motor one all with the top fixed connection of corresponding screw rod.

Preferably, the top fixed mounting of installation roof beam has the link, it installs the winding pole to rotate on the link, the winding has two connecting ropes on the winding pole, two the one end of connecting rope all with winding pole fixed connection, two the other end of connecting rope all with corresponding sliding connection board fixed connection, and two the connecting rope runs through respectively corresponding horizontal platform and with corresponding horizontal platform swing joint, the top fixed mounting of link has motor two, motor two with all fixed cover is equipped with the synchronizing wheel on the winding pole, two the cover is equipped with same hold-in range on the synchronizing wheel, the hold-in range with the top swing joint of link.

Preferably, two stabilizer bars are slidably mounted on the two connecting plates, the two corresponding stabilizer bars are fixedly connected with the corresponding clamping plates, and a protection pad is fixedly mounted on one side, close to each other, of each clamping plate.

Preferably, the cable of the electric hoist is fixedly provided with a frame II, the lifting hook I is fixedly connected with the bottom of the frame II, transverse rods are fixedly arranged on the inner walls of two sides of the frame II, two sliding mounting sliding plates are arranged on the transverse rods in a sleeved mode, the bottoms of the sliding plates are all extended to the lower portion of the frame II and fixedly connected with the corresponding lifting hook II, the sliding plates are fixedly connected with the bottom of the frame II in a sliding mode, the tops of the sliding plates are all provided with positioning grooves, two upright posts are fixedly arranged in the frame II, two connecting plates are slidably arranged on the upright posts, a plurality of positioning blocks are fixedly arranged at the bottoms of the connecting plates, the positioning blocks are matched with the positioning grooves, two connecting springs are sleeved on the upright posts, the top ends of the positioning springs are fixedly connected with the connecting plates, the bottom ends of the positioning springs are fixedly connected with the bottom inner walls of the frame II, two supporting rods are fixedly arranged at the bottom of the connecting plates, two wedge-shaped blocks are respectively extended to the lower portion of the frame II and fixedly connected with the bottom of the frame II, two wedge-shaped blocks are fixedly connected with the two wedge-shaped blocks, and the two wedge-shaped blocks are fixedly connected with the two wedge-shaped blocks are respectively arranged at the bottom of the two wedge-shaped blocks, and the two wedge-shaped blocks are fixedly connected with the two wedge-shaped blocks are respectively arranged at the bottom side of the two wedge-shaped blocks.

Preferably, two sides of the side support close to each other are fixedly provided with a propping plate, and the bottoms of the two propping plates are contacted with the top of the second frame.

Preferably, the bottom of the second frame is provided with two first sliding openings and two second sliding openings, the two second sliding openings are located between the two first sliding openings, the two sliding plates penetrate through the corresponding sliding openings and contact with the inner wall of the corresponding first sliding openings, and the two linkage plates penetrate through the corresponding second sliding openings and contact with the inner wall of the corresponding second sliding openings.

The utility model also provides a GIS equipment maintenance method, which comprises the following steps:

s1: cleaning, namely lifting the whole GIS equipment, and then carrying out overall omnibearing flushing cleaning on the GIS equipment by using a handheld spray header;

s2: detecting air leakage, namely detecting the air leakage of the whole GIS equipment through an air leakage detector, if the air leakage phenomenon occurs, disassembling and replacing the equipment, filling SF6 gas into new equipment, and if the air leakage phenomenon does not occur, continuing the next maintenance procedure;

s3: the adsorbent is replaced, and the used adsorbent is replaced so as to ensure that moisture and toxic gas in SF6 can be absorbed greatly;

s4: maintaining the circuit breakers, namely performing shutdown maintenance on each circuit breaker in GIS equipment, and ensuring normal operation of the circuit;

s5: the installation and the line end treatment of the cable are controlled, the cable is well arranged and smoothed, the line arrangement is neat and uniform, then the end of each line end is subjected to anti-falling treatment, and the electric leakage phenomenon caused by falling of the line end is avoided.

Compared with the related art, the GIS equipment maintenance device and the GIS equipment maintenance method provided by the utility model have the following beneficial effects:

according to the GIS equipment overhauling device and the GIS equipment overhauling method, the two clamping plates are arranged, so that the lifted GIS equipment can be clamped when the output shaft of the air cylinder stretches out and descends, the situation of oblique shaking is prevented, convenience is brought to an overhauling process, the situation that overhauling personnel are injured due to shaking can be avoided, the height positions of the clamping plates can be adaptively adjusted along with the height positions of the GIS equipment through the winding rods and the connecting ropes, the applicability is improved, and in addition, the lifted GIS equipment can be guaranteed to be in a horizontal state to the greatest extent through the two lifting hooks capable of being horizontally adjusted, so that the overhauling of the GIS equipment can be conveniently carried out all-round by people.

Drawings

FIG. 1 is a schematic structural diagram of a GIS equipment maintenance device provided by the utility model;

fig. 2 is a schematic side view structure of a GIS equipment overhaul device provided by the utility model;

fig. 3 is a schematic diagram of a connection structure of a first frame, a side bracket and a box body in the GIS equipment maintenance device provided by the utility model;

fig. 4 is a schematic diagram of an internal structure of a box body in the GIS equipment maintenance device provided by the utility model;

fig. 5 is a schematic diagram of a connection structure between an electric hoist and a second frame in the GIS equipment maintenance device provided by the utility model;

fig. 6 IS a schematic top cross-sectional structure diagram of a box body in the gis equipment inspection device provided by the utility model.

Reference numerals in the drawings: 1. mounting a beam; 2. a side bracket; 3. a mounting groove; 4. a vertical rod; 5. a sliding plate; 6. a first frame; 7. a first cylinder; 8. a connecting band plate; 9. a clamping plate; 10. a pressure spring; 11. a case body; 12. a screw; 13. a movable joint block; 14. a limiting piece; 15. a winding rod; 16. a connecting rope; 17. an electric hoist; 18. a first lifting hook; 19. a second lifting hook; 20. a second frame; 21. a cross bar; 22. a slide plate; 23. a positioning groove; 24. a column; 25. a splice plate; 26. a positioning block; 27. a reset spring; 28. a support rod; 29. wedge block one; 30. a second cylinder; 31. a linkage plate; 32. and a second wedge block.

Detailed Description

The utility model will be further described with reference to the drawings and embodiments.

Examples

Referring to fig. 1 to 6 in combination, in an embodiment of the present utility model, a GI S equipment inspection apparatus includes: the installation beam 1, two side brackets 2, an electric hoist 17, a first lifting hook 18 and two second lifting hooks 19, the two side brackets 2 are all fixed at the bottom of the installation beam 1, the electric hoist 17 IS fixed with the bottom of the installation beam 1, the first lifting hook 18 and the two second lifting hooks 19 are all arranged below the electric hoist 17, the two side brackets 2 are all provided with installation grooves 3, vertical rods 4 are all fixed in the two installation grooves 3, sliding connection plates 5 are all installed on the two vertical rods 4 in a sliding manner, one sides of the two sliding connection plates 5, which are close to each other, are all fixed with a first frame 6, the two first frames 6 are all internally fixed with first cylinders 7, the output shafts of the two first cylinders 7 are all extended out of the corresponding first frames 6 and are movably connected with the corresponding first frames 6, thus the output shafts of the first cylinders 7 can stretch and retract, the connecting plates 8 are all fixed on the output shafts of the two first cylinders 7, and two clamping plates 9 are arranged between the two connecting plates 8, and the clamping plates 9 can clamp the G IS equipment to form side edges, so that the G IS equipment can be clamped to prevent the G IS equipment from shaking due to rope pay-off, in addition, in order to ensure that the GIS equipment cannot be scratched by hard clamping or the shell of the GIS equipment IS scratched, a protection pad made of rubber materials IS fixed on one side, close to each other, of the two clamping plates 9, in addition, in order to ensure that a certain pressing force IS arranged between the clamping plates 9 and the GIS equipment, three pressure springs 10 are arranged between the connecting plates 8 and the clamping plates 9, one ends of the three pressure springs 10 are fixedly connected with the connecting plates 8, the other ends of the three pressure springs 10 are fixedly connected with the clamping plates 9, in order to ensure the clamping stability of the clamping plates 9, two stabilizer bars are slidably arranged on the two connecting plates 8, and the corresponding stabilizer bars are fixedly connected with the corresponding clamping plates 9, in order to prevent the output shaft of the first cylinder 7 from rotating, two limiting rods are slidably mounted on the first two frames 6, and the corresponding two limiting rods are fixed with the corresponding connecting plates 8, so that the output shaft of the first cylinder 7 is limited and prevented from rotating, and the bearing capacity of the output shaft of the first cylinder 7 can be reduced.

In the above manner, in order to form the pressure on the sliding connection plate 5 from top to bottom, so that the sliding connection plate 5 cannot easily move upwards, two transverse platforms are fixed on one side, away from each other, of the two side brackets 2, and a total of four transverse platforms, wherein two transverse platforms are in a group, each group of transverse platforms is fixedly provided with a box body 11, screw rods 12 are rotatably mounted in the two box bodies 11, movable connection blocks 13 are threadably mounted on the two screw rods 12, one sides, close to each other, of the two movable connection blocks 13 are fixedly provided with limiting pieces 14, the limiting pieces 14 are located above the sliding connection plate 5, the limiting pieces 14 are enabled to descend and collide with the sliding connection plate 5 through rotation of the screw rods 12, in order to ensure that the movable connection blocks 13 can only linearly ascend and descend, limiting rods are fixedly arranged in the two box bodies 11, the two limiting rods penetrate through the corresponding movable connection blocks 13 and are slidably connected with the corresponding movable connection blocks 13, in order to drive the screw rods 12 by one electric power, the tops of the two box bodies 11 are fixedly connected with the corresponding screw rods 12, and the top ends of the output shafts of the two motors are fixedly connected with the screw rods 12.

In this mode, in order to make the height of splint 9 possess adjustable function, be fixed with the link at the top of installation roof beam 1, and rotate on the link and install winding rod 15, and twine two connecting rope 16 on this winding rod 15, the one end of two connecting rope 16 all with winding rod 15 fixed connection, the other end all with corresponding sliding connection board 5 fixed connection, and two connecting rope 16 run through corresponding cross platform respectively and with corresponding cross platform swing joint, just so can not hinder the book of connecting rope 16 and unreel, and be fixed with motor two at the top of link, form the transmission through two synchronizing wheels and a hold-in range between this motor two and the winding rod 15, and hold-in range and the top swing joint of link, in order to guarantee the normal transmission of hold-in range.

In the method, in order to adjust the horizontal positions of the two lifting hooks 19, so as to ensure that the GIS equipment can be approximately in a horizontal state when being lifted, a frame two 20 is fixed on a rope of an electric hoist 17, the lifting hooks 18 are fixedly connected with the bottom of the frame two 20, cross bars 21 are fixed on the inner walls of two sides of the frame two 20, sliding plates 22 are slidably arranged on the two cross bars 21, the bottoms of the two sliding plates 22 extend below the frame two 20 and are fixedly connected with the corresponding lifting hooks two 19, two sliding openings one are arranged at the bottom of the frame two 20, the two sliding plates 22 penetrate through the corresponding sliding openings one and are slidably connected with the inner wall of the corresponding sliding opening one, so that the sliding plates 22 can only perform linear horizontal movement, positioning grooves 23 are formed at the tops of the two sliding plates 22, two upright posts 24 are fixedly arranged in the frame two 20, the two upright posts 24 are slidably provided with the same connecting plate 25, the bottom of the connecting plate 25 is fixedly provided with a plurality of positioning blocks 26, the sizes of the positioning blocks 26 and the positioning grooves 23 are matched, the positioning blocks 26 can be tightly inserted into the positioning grooves 23 so as to ensure the clamping stability of the sliding plate 22, the two upright posts 24 are sleeved with reset springs 27, the top ends of the reset springs 27 are fixedly connected with the connecting plate 25, the bottom ends of the reset springs 27 are fixedly connected with the bottom inner wall of the second frame 20, thus the connecting plate 25 can be provided with a rebound function so as to enable the connecting plate 25 to rebound automatically into the positioning grooves 23 with the positioning blocks 26, the bottom of the connecting plate 25 is fixedly provided with two supporting rods 28, the bottom ends of the two supporting rods 28 extend to the lower part of the second frame 20 and are fixedly provided with wedge-shaped blocks 29, the supporting rods 28 are slidably connected with the bottom of the second frame 20, the bottom inner wall of the second frame 20 is fixedly provided with two cylinders 30, the output shafts of the two air cylinders II 30 are respectively fixedly provided with a linkage plate 31, the bottoms of the two linkage plates 31 are respectively extended to the lower side of the frame II 20, two sliding ports II are formed in the bottom of the frame II 20, the two linkage plates 31 penetrate through the corresponding sliding ports II and are in sliding contact with the inner walls of the corresponding sliding ports II, the linkage plates 31 are guaranteed to linearly and horizontally stretch out and draw back only, two wedge blocks II 32 are respectively fixed on one sides, away from each other, of the two linkage plates 31, and the two wedge blocks II 32 are respectively matched with the corresponding wedge blocks I29.

In the above manner, in order to ensure that the second frame 20 has a limit to prevent the second frame 20 from shaking when the second frame 20 is lifted, abutment plates are fixed on the sides of the two side brackets 2, which are close to each other, and the bottoms of the two abutment plates are in contact with the top of the second frame 20.

In this embodiment:

among the plurality of positioning blocks 26, two corresponding positioning blocks 26 are inserted into corresponding positioning grooves 23, so that the sliding plate 22 is limited, and the stability of the second lifting hook 19 is ensured;

when the GIS equipment is overhauled, the device is pushed to two sides of the GIS equipment, so that the GIS equipment is positioned between two side brackets 2, then an electric hoist 17 is started, the electric hoist 17 starts to release ropes, at the moment, a first lifting hook 18 and two second lifting hooks 19 start to descend until the first lifting hook 18 and the second lifting hook 19 descend to be buckled with a hanging ring on the GIS equipment, the electric hoist 17 can be closed, then the first lifting hook 18 and the second lifting hook 19 are hung on the GIS equipment, then the electric hoist 17 is started to lift the whole GIS equipment, after the lifting, the first two motors are started positively, the output shafts of the first motors drive corresponding screws 12 to rotate, then the screws 12 are matched with threads of a loose joint block 13, the two limiting pieces 14 can be driven to descend, finally, the sliding pieces 5 are tightly pressed by the limiting pieces 14, then the output shafts of the first two clamping plates 9 are started to extend out, the two clamping plates 9 are mutually close, the two protection pads on the two sides of the clamping plates 9 are contacted with the output shafts of the GIS equipment, at the moment, the clamping plates are still in a fully-stressed state, and the clamping plates can be completely cleaned, and the clamping plates 10 can be completely cleaned after the clamping plates are completely stressed and the clamping plates are completely stressed, and the clamping plates are completely stressed and can be completely cleaned;

in the subsequent use, if the device is applied to GIS equipment with smaller body size, the height of the clamping plate 9 needs to be adjusted in an ascending way, so that the clamping plate 9 can be changed along with the change of the height position of the GIS equipment, the motor II can be started in the forward direction, the winding rod 15 can be driven to rotate through the transmission of the synchronous wheel and the synchronous belt, the winding of the connecting rope 16 is started, the two sliding plates 5 start to ascend along with the winding of the connecting rope 16, the height position of the clamping plate 9 can be changed until the clamping plate is ascended to the approximate height, and then the clamping work can be continued;

in addition, because weight and size are all different between each part on the GIS equipment, the condition that one side is high and one side is low can appear, at this moment, in order to guarantee that the GIS equipment is when being lifted, it can be in balanced state, so that people's maintenance, the output shaft of two cylinder two 30 can be started, under the drive of two linkage plates 31, two wedge two 32 move towards the direction that keeps away from each other, when it is contradicted with wedge one 29, two wedge one 29 just carries two branch 28 to begin to rise, thereby can push up the locating piece 26 on linking plate 25 and it, finally make locating piece 26 remove from constant head tank 23, and reset spring 27 at this moment is tensile state, then according to the actual weight condition of GIS equipment, stir two slide plates 22, carry out adaptive adjustment with the horizontal position of two lifting hooks two 19, after the adjustment, start the output shaft of two cylinder two 30 and withdraw, the reset spring 27 of stretching just contracts, thereby bring corresponding two locating pieces 26 into corresponding constant head tank 23 again, and then fix 22 again, the work can be lifted to the GIS equipment.

Compared with the related art, the GIS equipment maintenance device provided by the utility model has the following beneficial effects:

in this device, through two splint 9 that set up, alright be tight at the GIS equipment clamp of lifting of stretching out and descending of cylinder one 7 output shaft, thereby prevent that it from taking place crooked condition of rocking, bring convenience for the maintenance process, also can avoid damaging the condition of maintainer because of its rocking, and, through the winding rod 15 and the connecting rope 16 of setting, just can follow the high position of GIS equipment to the high position of splint 9 and carry out the adaptability, thereby improve the suitability, in addition, through two lifting hooks two 19 that can carry out horizontal position adjustment, alright guarantee in the maximum GIS equipment of lifting can be in the horizontality, in order to make things convenient for people to carry out all-round maintenance to it.

The foregoing description is only illustrative of the present utility model and is not intended to limit the scope of the utility model, and all equivalent structures or equivalent processes or direct or indirect application in other related technical fields are included in the scope of the present utility model.

Claims

1. The utility model provides a GIS equipment overhauls device, includes installation roof beam, two side support, electric hoist, lifting hook one and two lifting hooks two, two equal fixed mounting of side support is in the bottom of installation roof beam, electric hoist fixed mounting has the bottom of installation roof beam, lifting hook one and two lifting hooks two all set up in the below of electric hoist, its characterized in that, two all offer the mounting groove on the side support, two equal fixed mounting has the montant in the mounting groove, two equal slidable mounting has the sliding connection board on the montant, two equal fixed mounting has frame one in one side that sliding connection board is close to each other, two equal fixed mounting has cylinder one in the frame one, two the output shaft of cylinder one all extends to the correspondence outside the frame one and with the corresponding frame one swing joint, and two equal fixed mounting has the link board on the output shaft of cylinder one, two be equipped with two splint between the link board, two equal fixed mounting has three pressure spring in one side that keeps away from each other, corresponding three the corresponding compression spring one end that the corresponding clamp plate kept away from.

2. The GIS equipment maintenance device according to claim 1, wherein two lateral brackets are fixedly installed on two sides far away from each other, two box bodies are fixedly installed on four lateral brackets, screws are rotatably installed in two box bodies, movable connecting blocks are installed on two screws in a threaded mode, limiting sheets are fixedly installed on two sides close to each other, the limiting sheets are matched with corresponding sliding plates, motors I are fixedly installed on the tops of the two box bodies, and output shafts of the motors I are fixedly connected with the tops of the corresponding screws.

3. The GIS equipment maintenance device according to claim 2, wherein a connecting frame is fixedly installed at the top of the installation beam, a winding rod is rotatably installed on the connecting frame, two connecting ropes are wound on the winding rod, one ends of the two connecting ropes are fixedly connected with the winding rod, the other ends of the two connecting ropes are fixedly connected with the corresponding sliding connection plates, the two connecting ropes penetrate through the corresponding transverse tables and are movably connected with the corresponding transverse tables respectively, a motor II is fixedly installed at the top of the connecting frame, synchronous wheels are fixedly sleeved on the motor II and the winding rod, and the same synchronous belt is sleeved on the synchronous wheels and movably connected with the top of the connecting frame.

4. The GIS equipment maintenance device according to claim 1, wherein two stabilizer bars are slidably mounted on two of the connecting plates, the corresponding two stabilizer bars are fixedly connected with the corresponding clamping plates, and a protection pad is fixedly mounted on one side, close to each other, of each clamping plate.

5. The GIS equipment overhauling device according to claim 1, wherein a second frame is fixedly installed on a rope of the electric hoist, a first lifting hook is fixedly connected with the bottom of the second frame, transverse rods are fixedly installed on inner walls of two sides of the second frame, sliding springs are sleeved on the two transverse rods, bottoms of the two sliding plates are fixedly connected with the bottom of the second frame and the corresponding second lifting hook, the sliding rods are fixedly connected with the bottom of the second frame in a sliding manner, positioning grooves are formed in the tops of the sliding plates, two upright posts are fixedly installed in the second frame, two connecting plates are slidably installed on the upright posts, a plurality of positioning blocks are fixedly installed at the bottoms of the connecting plates, the top ends of the sliding springs are fixedly connected with the connecting plates, the bottom ends of the sliding springs are fixedly connected with the bottom inner walls of the second frame, two wedge-shaped blocks are fixedly installed at the bottoms of the two wedge-shaped blocks, the two wedge-shaped blocks are fixedly connected with the bottom of the first frame and the two wedge-shaped blocks, and the two wedge-shaped blocks are fixedly installed at the bottom of the two wedge-shaped blocks, and the two wedge-shaped blocks are fixedly connected with the bottom of the two wedge-shaped blocks are fixedly installed on the two frame.

6. The GIS equipment maintenance device according to claim 5, wherein two side brackets are fixedly mounted on the sides close to each other, and the bottoms of the two side brackets are contacted with the top of the second frame.

7. The GIS equipment maintenance device according to claim 5, wherein two sliding openings one and two sliding openings two are formed in the bottom of the frame two, the sliding openings two are located between the sliding openings two, the sliding plates penetrate through the corresponding sliding openings and contact with the inner wall of the corresponding sliding opening one, and the linkage plates penetrate through the corresponding sliding openings two and contact with the inner wall of the corresponding sliding opening two.

8. The GIS equipment overhauling method is characterized by comprising the following steps of: