CN216303196U - 10kV high tension switchgear handcart circuit breaker lift operation platform and turnover device - Google Patents
10kV high tension switchgear handcart circuit breaker lift operation platform and turnover device Download PDFInfo
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- CN216303196U CN216303196U CN202122559589.7U CN202122559589U CN216303196U CN 216303196 U CN216303196 U CN 216303196U CN 202122559589 U CN202122559589 U CN 202122559589U CN 216303196 U CN216303196 U CN 216303196U
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Abstract
The utility model relates to a handcart circuit breaker lifting operation platform and a turnover device of a 10kV high-voltage switch cabinet, which comprise the handcart circuit breaker lifting operation platform and the handcart circuit breaker turnover device; the top surface of the handcart breaker lifting operation platform is provided with an upper-layer rail, the interior of the handcart breaker lifting operation platform is provided with a lower-layer rail, and the upper-layer rail and the lower-layer rail are provided with a plurality of movable unpowered platens; the upper layer of track is matched with the unpowered bedplate to form an overhaul roadway, and the lower layer of track is matched with the unpowered bedplate to form a temporary storage roadway; the bottom both sides of door shape frame construction still are equipped with the layer changing mechanism, establish telescopic machanism in the unpowered platen, and unpowered platen can be overhauld between the tunnel and the tunnel of keeping in through layer changing mechanism and telescopic machanism and trades the layer. According to the handcart circuit breaker turnover device, the handcart circuit breakers are turned over through the handcart circuit breaker turnover device, the overhauling and temporary storage of a plurality of circuit breakers are met through the handcart circuit breaker lifting operation platform, and therefore the plurality of handcart circuit breakers can be overhauled in a limited space of a switch room.
Description
Technical Field
The utility model relates to the technical field of power equipment maintenance, in particular to a lifting operation platform and a turnover device for a handcart breaker of a 10kV high-voltage switch cabinet.
Background
The handcart circuit breaker is a power device frequently used in a switch room, and the number thereof is on the rise. According to relevant statistics, 30% of defects of the handcart type circuit breaker occur at the bottom of the handcart type circuit breaker, and the defects comprise mechanical parts and electrical circuits in a chassis, and an insulated pull rod, an arc extinguishing chamber, a buffer and the like at the bottom of the circuit breaker. When the handcart circuit breaker is overhauled, a plurality of circuit breakers in a switch room need to be all dismantled one by one, the circuit breakers are placed on a handcart circuit breaker overhauling device after being dismantled to be overhauled, and the circuit breakers are installed one by one after being overhauled.
At present, most of the existing handcart circuit breaker overhauling devices can only satisfy the overhauling work of one circuit breaker, and when a plurality of circuit breakers are overhauled simultaneously, a plurality of handcart circuit breaker overhauling devices are needed to satisfy the overhauling work; however, because the space in the switch chamber is narrow and the surrounding is the electrified equipment, the requirement for simultaneously storing a plurality of handcart circuit breakers in the switch chamber cannot be met, and then the requirement for simultaneously overhauling a plurality of handcart circuit breakers cannot be met, so that the overhauling efficiency of the handcart circuit breakers is low.
SUMMERY OF THE UTILITY MODEL
In order to solve the problems, the utility model provides a 10kV high-voltage switch cabinet handcart circuit breaker lifting operation platform and a turnover device, and the 10kV high-voltage switch cabinet handcart circuit breaker lifting operation platform and the turnover device can realize simultaneous maintenance of a plurality of handcart circuit breakers in a limited space of a switch room, so that the maintenance efficiency of the handcart circuit breakers is improved.
The technical scheme adopted by the utility model is as follows:
a handcart circuit breaker lifting operation platform and a turnover device of a 10kV high-voltage switch cabinet comprise the handcart circuit breaker lifting operation platform and the handcart circuit breaker turnover device; the handcart circuit breaker lifting operation platform is of a door-shaped frame structure, an upper rail is arranged on the top surface of the door-shaped frame structure, a lower rail is arranged inside the door-shaped frame structure, and a plurality of movable unpowered platens are arranged on the upper rail and the lower rail; the upper layer of track is matched with the unpowered bedplate to form an overhaul roadway, and the lower layer of track is matched with the unpowered bedplate to form a temporary storage roadway; two sides of the bottom of the door-shaped frame structure are also provided with a layer changing mechanism, a telescopic mechanism is arranged in the unpowered bedplate, and the unpowered bedplate can be subjected to layer changing between the maintenance roadway and the temporary storage roadway through the layer changing mechanism and the telescopic mechanism; handcart circuit breaker turnover device is hydraulic lift truck, and it can be transported the handcart circuit breaker who treats the maintenance to the unpowered platen of maintenance tunnel by the cubical switchboard on, can also transport the handcart circuit breaker who overhauls on the unpowered platen of tunnel of keeping in simultaneously to the cubical switchboard.
Furthermore, one side of the door-shaped frame structure is an access way end, and the upper layer track and the lower layer track extend to the end of the access way end.
Further, the layer changing mechanism comprises a base and a large-stroke hydraulic cylinder; the number of the large-stroke hydraulic cylinders is two, the large-stroke hydraulic cylinders are fixedly mounted on the base, the maximum stroke of the extended telescopic rods of the large-stroke hydraulic cylinders is larger than the height of the door-shaped frame structure, and the telescopic rods of the large-stroke hydraulic cylinders can be in contact with the bottom of the unpowered bedplate.
Further, a synchronous controller is installed inside the base, and the two large-stroke hydraulic cylinders are lifted synchronously through the synchronous controller.
Furthermore, a sucker is mounted at the top of the telescopic rod of the large-stroke hydraulic cylinder and is in contact with the bottom of the unpowered bedplate through the sucker.
Further, the unpowered bedplate comprises a middle bedplate, a left bedplate and a right bedplate, wherein the left bedplate and the right bedplate are respectively positioned at two sides of the middle bedplate, and the bottoms of the left bedplate and the right bedplate are respectively provided with a wheel body for walking; the telescopic mechanism in the unpowered platen comprises electric cylinders, a synchronous controller and a lithium battery, wherein the electric cylinders, the synchronous controller and the lithium battery are all installed inside the middle platen, the number of the electric cylinders is a plurality, the electric cylinders are connected with the lithium battery through the synchronous controller, telescopic rods of the electric cylinders penetrate through the two sides of the middle platen and are fixedly connected with the left platen or the right platen, and the lithium battery is connected with a charging socket and a control button.
Furthermore, the number of the electric cylinders is four, and the four electric cylinders are symmetrically arranged inside the middle bedplate.
Further, the hydraulic lift truck comprises a truck body, a hydraulic lifting mechanism and a lifting bedplate; the hydraulic lifting mechanism is fixedly mounted on the vehicle body, and the lifting bedplate can be lifted relative to the vehicle body through the hydraulic lifting mechanism.
Furthermore, the four corners of the bottom of the lifting bedplate are provided with rotary lifting bolts which can pass through the lifting bedplate to position the handcart circuit breaker.
Furthermore, the front end face of the lifting bedplate is also provided with a hook, and the unpowered bedplate is also provided with a fixing hole matched with the hook.
The utility model has the beneficial effects that:
the handcart circuit breaker lifting operation platform and the turnover device of the 10kV high-voltage switch cabinet turnover the to-be-overhauled and overhauled handcart circuit breakers through the handcart circuit breaker turnover device; the handcart circuit breaker lifting operation platform can meet the requirements of maintenance and temporary storage of multiple circuit breakers, layers can be changed between the maintenance roadway and the temporary storage roadway, and therefore multiple handcart circuit breakers can be maintained simultaneously in the limited space of a switch room, and the maintenance efficiency of the handcart circuit breakers is improved.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
fig. 2 is a schematic end face structure diagram of the handcart circuit breaker lifting operation platform of the utility model;
FIG. 3 is a schematic structural diagram of a layer changing mechanism according to the present invention;
FIG. 4 is a schematic structural view of the unpowered platen of the present invention;
FIG. 5 is a schematic diagram of the cooperation of the unpowered platen and the handcart breaker transfer device of the present invention;
in fig. 1-5, 1-handcart circuit breaker lifting operation platform, 2-handcart circuit breaker turnover device, 3-upper track, 4-lower track, 5-unpowered platen, 6-maintenance roadway, 7-temporary storage roadway, 8-layer changing mechanism, 9-telescopic mechanism, 10-entry and exit roadway end, 11-base, 12-large stroke hydraulic cylinder, 13-synchronous controller, 14-sucker, 15-middle platen, 16-left platen, 17-right platen, 18-wheel body, 19-electric cylinder, 20-synchronous controller, 21-lithium battery, 22-charging socket, 23-control button, 24-vehicle body, 25-hydraulic lifting mechanism, 26-lifting platen, 27-rotary lifting bolt, 28-hook, 29-fixing hole.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. It is to be understood that the described embodiments are merely exemplary of the utility model, and not restrictive of the full scope of the utility model. All other embodiments, which can be obtained by a person skilled in the art without inventive effort based on the embodiments of the present invention, are within the scope of the present invention.
As shown in fig. 1-2, the utility model is a handcart circuit breaker lifting operation platform and turnover device of a 10kV high-voltage switch cabinet, wherein the handcart circuit breaker lifting operation platform and turnover device of the 10kV high-voltage switch cabinet comprises a handcart circuit breaker lifting operation platform 1 and a handcart circuit breaker turnover device 2;
specifically, the handcart breaker lifting operation platform 1 is of a door-shaped frame structure and consists of a door-shaped frame, an upper connecting beam and a lower connecting beam; wherein the door-shaped frame and the connecting beam are both made of square steel pipes and are welded to form an integral door-shaped frame structure. Upper track 3 is installed to door shape frame construction's top surface, and upper track 3 is groove structure track, and door shape frame construction's internally mounted has lower floor's track 4, and lower floor's track 4 is plate body structure track, and lower floor's track 4 fixed mounting is on the tie-beam down. A plurality of movable unpowered bedplate (5) are arranged on the upper-layer track (3) and the lower-layer track (4); the upper-layer track 3 is matched with the unpowered bedplate 5 to form an overhaul roadway 6, and the lower-layer track 4 is matched with the unpowered bedplate 5 to form a temporary storage roadway 7.
The bottom both sides of door shape frame construction still are equipped with trades layer mechanism 8, establish telescopic machanism 9 in the unpowered platen 5, and unpowered platen 5 can go up the layer changing between maintenance tunnel 6 and the tunnel 7 of keeping in through trading layer mechanism 8 and telescopic machanism 9. Handcart circuit breaker turnover device 2 is hydraulic lift truck, and handcart circuit breaker turnover device 2 can transport the handcart circuit breaker that waits to overhaul to the unpowered platen 5 of overhauing tunnel 6 by the cubical switchboard on, can also transport the handcart circuit breaker that overhauls on the unpowered platen 5 of tunnel 7 of keeping in simultaneously to the cubical switchboard.
Furthermore, one side of the portal frame structure is an access end 10, and the upper layer track 3 and the lower layer track 4 extend to the end of the access end 10.
When this 10kV high tension switchgear handcart circuit breaker lift operation platform and turnover device used, because handcart circuit breaker lift operation platform 1 and handcart circuit breaker turnover device 2 are mutually independent, consequently make the turnover of handcart circuit breaker mutually independent with the maintenance, mutual noninterference. Specifically, the circuit breakers of the to-be-overhauled vehicle are transported to the unpowered bedplate 5 of the overhaul roadway 6 from the switch cabinet one by one through the handcart circuit breaker turnover device 2; because the unpowered bedplate 5 can move on the upper-layer track 3, and the number of the unpowered bedplates 5 is multiple, the handcart circuit breaker turnover device 2 can carry out maintenance work on the handcart circuit breaker simultaneously when transporting the circuit breaker of the vehicle to be maintained; when the maintenance of the single handcart circuit breaker is finished, the unpowered bedplate 5 and the repaired handcart circuit breaker on the unpowered bedplate are subjected to layer changing to the temporary storage roadway 7 through the layer changing mechanism 8 and the telescopic mechanism 9 of the unpowered bedplate 5; and then the overhauled handcart circuit breaker on the unpowered bedplate 5 of the temporary storage roadway 7 is transported to a switch cabinet through the handcart circuit breaker turnover device 2.
It should be noted that, overhaul tunnel 6 and temporary storage tunnel 7 are in order to satisfy many handcart circuit breakers and overhaul and temporarily store, and when the handcart circuit breaker quantity that needs to overhaul was less, then overhaul tunnel 6 or temporary storage tunnel 7 select one of them can satisfy the maintenance demand.
Further, a specific structure of the layer changing mechanism 8 is given in this embodiment, as shown in fig. 3, the layer changing mechanism 8 includes a base 11 and a large-stroke hydraulic cylinder 12; the number of the large-stroke hydraulic cylinders 12 is two, the large-stroke hydraulic cylinders are fixedly mounted on the base 11, the maximum extending stroke of the telescopic rods of the large-stroke hydraulic cylinders 12 is larger than the height of the door-shaped frame structure, and the telescopic rods of the large-stroke hydraulic cylinders 12 can be in contact with the bottom of the unpowered bedplate 5.
Further, a synchronous controller 13 is installed inside the base 11, and the two large-stroke hydraulic cylinders 12 are lifted synchronously through the synchronous controller 13.
Furthermore, a suction cup 14 is mounted on the top of the telescopic rod of the large-stroke hydraulic cylinder 12, and is in contact with the bottom of the unpowered bedplate 5 through the suction cup 14.
Further, in order to realize layer changing by matching with the layer changing mechanism 8, the embodiment shows a specific structure of the unpowered platen 5, and as shown in fig. 4, the unpowered platen 5 includes a middle platen 15, a left platen 16 and a right platen 17; specifically, the left bedplate 16 and the right bedplate 17 are respectively positioned at two sides of the middle bedplate 15, and the bottoms of the left bedplate 16 and the right bedplate 17 are provided with wheels 18 for walking; the telescopic mechanism 9 in the unpowered bedplate 5 comprises electric cylinders 19, a synchronous controller 20 and lithium batteries 21, wherein the electric cylinders 19, the synchronous controller 20 and the lithium batteries 21 are all installed inside the middle bedplate 15, the number of the electric cylinders 19 is a plurality, as shown in fig. 4, the number of the electric cylinders 19 in the embodiment is four, and the four electric cylinders 19 are symmetrically installed inside the middle bedplate 15. The four electric cylinders 19 are connected with lithium batteries 21 through a synchronous controller 20, telescopic rods of the electric cylinders 19 penetrate through two sides of the middle bedplate 15 and are fixedly connected with the left bedplate 16 or the right bedplate 17, and the lithium batteries 21 are connected with charging sockets 22 and control buttons 23.
When the loaded unpowered bedplate 5 is used for layer changing, firstly the unpowered bedplate 5 and the overhauled handcart breaker on the unpowered bedplate are moved to the other side of the opposite direction of the gateway access end 10 of the portal frame structure, and then the layer changing mechanism 8 on the other side of the bottom of the portal frame structure is used for layer changing. Specifically, the large-stroke hydraulic cylinders 12 of the layer changing mechanism 8 are started, the two large-stroke hydraulic cylinders 12 are controlled by the synchronous controller 13 to synchronously ascend, and the suction cup 14 at the top of the telescopic rod is contacted with the bottom of the unpowered bedplate 5 to drive the unpowered bedplate 5 to continuously ascend so as to separate the wheel bodies 18 at the bottoms of the left bedplate 16 and the right bedplate 17 from the upper-layer track 3; then a control button 23 on the middle bedplate 15 is touched, four electric cylinders 19 in the middle bedplate 15 are synchronously contracted under the control of a synchronous controller 20, so that the left bedplate 16 and the right bedplate 17 are respectively folded towards two sides of the middle bedplate 15, and the size of the whole unpowered bedplate 5 is narrowed; and finally, the two large-stroke hydraulic cylinders 12 are controlled by the synchronous controller 13 to synchronously descend, when the large-stroke hydraulic cylinders 12 drive the unpowered bedplate 5 and the handcart circuit breaker overhauled on the unpowered bedplate to descend to the position of the lower-layer track 4, the wheel bodies 18 at the bottoms of the left bedplate 16 and the right bedplate 17 are in contact with the lower-layer track 4, the large-stroke hydraulic cylinders 12 continue to descend, the suction cups 14 at the top of the telescopic rods are separated from the bottom of the unpowered bedplate 5, and at the moment, the unpowered bedplate 5 and the handcart circuit breaker overhauled on the unpowered bedplate can move on the lower-layer track 4.
Handcart circuit breaker turnover device 2 will keep in 7 unpowered platen of tunnel after 5 overhauld handcart circuit breaker transports to the cubical switchboard, and unpowered platen 5 of no load then trades the layer, and during the layer change, it trades the layer through the layer change mechanism 8 of portal frame structure business turn over tunnel one side, and specific layer change process is opposite with above-mentioned 5 layer change processes of unpowered platen that have the load, no longer gives unnecessary details here.
In another embodiment of the present invention, a specific structure of a hydraulic lift truck is also given, as shown in fig. 5, the hydraulic lift truck includes a truck body 24, a hydraulic lift mechanism 25, and a lift table 26; the vehicle body 24 and the hydraulic lifting mechanism 25 both belong to the prior art, and refer to a hydraulic lifting vehicle of a Relift brand; specifically, the hydraulic lift mechanism 25 is fixedly attached to the vehicle body 24, and the lift table 26 is movable up and down with respect to the vehicle body 24 by the hydraulic lift mechanism 25.
Further, the four corners of the bottom of the lifting bedplate 26 are provided with rotary lifting bolts 27 which can pass through the lifting bedplate 26 to position the handcart circuit breaker. By installing the rotary lifting bolts 27 at the four corners of the bottom of the lifting bedplate 26, when the handcart circuit breaker is turned on the handcart circuit breaker turning device 2, the position of the handcart circuit breaker is relatively fixed, and the handcart circuit breaker is prevented from moving.
Furthermore, a hook 28 is further arranged on the front end face of the lifting bedplate 26, and a fixing hole 29 matched with the hook 28 is further arranged on the unpowered bedplate 5. By additionally arranging the hook 28 and the fixing hole 29, when the handcart circuit breaker is lifted up and down on the operation platform 1, the handcart circuit breaker turnover device 2 can keep a relatively fixed position relative to the unpowered bedplate 5 and cannot move; in addition, the additional hook 28 on the front end face of the lifting bedplate 26 can also enable the handcart breaker turnover device 2 to keep a relative fixed position relative to the switch cabinet.
Claims (10)
1. The utility model provides a 10kV high tension switchgear handcart circuit breaker lift operation platform and turnover device which characterized in that: the handcart circuit breaker lifting operation platform and the turnover device of the 10kV high-voltage switch cabinet comprise a handcart circuit breaker lifting operation platform and a handcart circuit breaker turnover device; the handcart circuit breaker lifting operation platform is of a door-shaped frame structure, an upper rail is arranged on the top surface of the door-shaped frame structure, a lower rail is arranged inside the door-shaped frame structure, and a plurality of movable unpowered platens are arranged on the upper rail and the lower rail; the upper layer of track is matched with the unpowered bedplate to form an overhaul roadway, and the lower layer of track is matched with the unpowered bedplate to form a temporary storage roadway; two sides of the bottom of the door-shaped frame structure are also provided with a layer changing mechanism, a telescopic mechanism is arranged in the unpowered bedplate, and the unpowered bedplate can be subjected to layer changing between the maintenance roadway and the temporary storage roadway through the layer changing mechanism and the telescopic mechanism; handcart circuit breaker turnover device is hydraulic lift truck, and it can be transported the handcart circuit breaker who treats the maintenance to the unpowered platen of maintenance tunnel by the cubical switchboard on, can also transport the handcart circuit breaker who overhauls on the unpowered platen of tunnel of keeping in simultaneously to the cubical switchboard.
2. The 10kV high-voltage switch cabinet handcart circuit breaker lifting operation platform and turnover device of claim 1, characterized in that: one side of the door-shaped frame structure is an access roadway end, and the upper layer track and the lower layer track extend to the end of the access roadway end.
3. The 10kV high-voltage switch cabinet handcart circuit breaker lifting operation platform and turnover device of claim 1, characterized in that: the layer changing mechanism comprises a base and a large-stroke hydraulic cylinder; the number of the large-stroke hydraulic cylinders is two, the large-stroke hydraulic cylinders are fixedly mounted on the base, the maximum stroke of the extended telescopic rods of the large-stroke hydraulic cylinders is larger than the height of the door-shaped frame structure, and the telescopic rods of the large-stroke hydraulic cylinders can be in contact with the bottom of the unpowered bedplate.
4. The 10kV high-voltage switch cabinet handcart circuit breaker lifting operation platform and turnover device of claim 3, characterized in that: the base internally mounted has synchronous controller, two large stroke pneumatic cylinders go up and down through synchronous controller synchronization.
5. The 10kV high-voltage switch cabinet handcart circuit breaker lifting operation platform and turnover device of claim 3, characterized in that: and the top of the telescopic rod of the large-stroke hydraulic cylinder is provided with a sucker which is in contact with the bottom of the unpowered bedplate.
6. The 10kV high-voltage switch cabinet handcart circuit breaker lifting operation platform and turnover device of claim 3, characterized in that: the unpowered bedplate comprises a middle bedplate, a left bedplate and a right bedplate, wherein the left bedplate and the right bedplate are respectively positioned at two sides of the middle bedplate, and the bottoms of the left bedplate and the right bedplate are respectively provided with a wheel body for walking; the telescopic mechanism in the unpowered platen comprises electric cylinders, a synchronous controller and a lithium battery, wherein the electric cylinders, the synchronous controller and the lithium battery are all installed inside the middle platen, the number of the electric cylinders is a plurality, the electric cylinders are connected with the lithium battery through the synchronous controller, telescopic rods of the electric cylinders penetrate through the two sides of the middle platen and are fixedly connected with the left platen or the right platen, and the lithium battery is connected with a charging socket and a control button.
7. The 10kV high-voltage switch cabinet handcart circuit breaker lifting operation platform and turnover device of claim 6, characterized in that: the number of the electric cylinders is four, and the four electric cylinders are symmetrically arranged inside the middle bedplate.
8. The 10kV high-voltage switch cabinet handcart circuit breaker lifting operation platform and turnover device of claim 1, characterized in that: the hydraulic lift truck comprises a truck body, a hydraulic lifting mechanism and a lifting bedplate; the hydraulic lifting mechanism is fixedly mounted on the vehicle body, and the lifting bedplate can be lifted relative to the vehicle body through the hydraulic lifting mechanism.
9. The 10kV high-voltage switch cabinet handcart circuit breaker lifting operation platform and turnover device of claim 8, characterized in that: and the four corners at the bottom of the lifting bedplate are provided with rotary lifting bolts which can pass through the lifting bedplate to position the handcart circuit breaker.
10. The 10kV high-voltage switch cabinet handcart circuit breaker lifting operation platform and turnover device of claim 8, characterized in that: the front end face of the lifting bedplate is also provided with a hook, and the unpowered bedplate is also provided with a fixing hole matched with the hook.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122559589.7U CN216303196U (en) | 2021-10-22 | 2021-10-22 | 10kV high tension switchgear handcart circuit breaker lift operation platform and turnover device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122559589.7U CN216303196U (en) | 2021-10-22 | 2021-10-22 | 10kV high tension switchgear handcart circuit breaker lift operation platform and turnover device |
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| CN216303196U true CN216303196U (en) | 2022-04-15 |
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| CN202122559589.7U Active CN216303196U (en) | 2021-10-22 | 2021-10-22 | 10kV high tension switchgear handcart circuit breaker lift operation platform and turnover device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115441341A (en) * | 2022-11-08 | 2022-12-06 | 山东信息职业技术学院 | Handcart overhauls operating means |
| CN116960808A (en) * | 2023-08-01 | 2023-10-27 | 国网山东省电力公司蒙阴县供电公司 | Auxiliary maintenance device for distribution network switch cabinet |
-
2021
- 2021-10-22 CN CN202122559589.7U patent/CN216303196U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115441341A (en) * | 2022-11-08 | 2022-12-06 | 山东信息职业技术学院 | Handcart overhauls operating means |
| CN115441341B (en) * | 2022-11-08 | 2023-01-24 | 山东信息职业技术学院 | Handcart overhauls operating means |
| CN116960808A (en) * | 2023-08-01 | 2023-10-27 | 国网山东省电力公司蒙阴县供电公司 | Auxiliary maintenance device for distribution network switch cabinet |
| CN116960808B (en) * | 2023-08-01 | 2024-03-08 | 国网山东省电力公司蒙阴县供电公司 | Auxiliary maintenance device for distribution network switch cabinet |
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