CN113746009B - Fixing device for power equipment of power distribution network and operation method - Google Patents
Fixing device for power equipment of power distribution network and operation method Download PDFInfo
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- CN113746009B CN113746009B CN202111106374.8A CN202111106374A CN113746009B CN 113746009 B CN113746009 B CN 113746009B CN 202111106374 A CN202111106374 A CN 202111106374A CN 113746009 B CN113746009 B CN 113746009B
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/26—Casings; Parts thereof or accessories therefor
- H02B1/50—Pedestal- or pad-mounted casings; Parts thereof or accessories therefor
- H02B1/505—Pedestal- or pad-mounted casings; Parts thereof or accessories therefor retractable installations
Abstract
The invention discloses a fixing device and an operation method for power equipment of a power distribution network, and relates to the technical field of the power equipment. The invention comprises a supporting frame, wherein the supporting frame comprises a pair of movable brackets capable of adjusting lifting and a pair of guide rails; a plurality of first telescopic driving devices are arranged between the pair of guide rails; the position adjusting frame can be arranged in the supporting frame in a left-right moving way; the motion rod can move left and right and is arranged in the limiting channel, and the peripheral side of the motion rod is fixed with the telescopic end of the second telescopic driving device; the equipment fixing seat is fixed with the connecting rope; the corner plates for supporting and positioning the power equipment are fixed at the corners of the inner wall of the equipment fixing seat. The invention solves the problems that the existing power equipment fixing device is difficult to fix the power equipment at different heights and different coordinate positions and has poor universality through the functions of the supporting frame, the position adjusting frame, the moving rod and the equipment fixing seat.
Description
Technical Field
The invention belongs to the technical field of power equipment, and particularly relates to a fixing device for power equipment of a power distribution network and an operation method.
Background
On the premise that the capacity and the power grid scale in the power system are larger and larger, the maintenance of the power equipment is indispensable for guaranteeing the safe production. The distribution network is a power network which receives electric energy from a power transmission network or a regional power plant, distributes the electric energy to various users in situ through a distribution facility or distributes the electric energy step by step according to voltage, and consists of an overhead line, a cable, a pole tower, a distribution transformer, a disconnecting switch, a reactive compensator, a plurality of auxiliary facilities and the like. The distribution network generally adopts closed-loop design and open-loop operation, the structure of the distribution network is radial, the operation flexibility and the power supply reliability are improved, and the explosion of the circuit breaker caused by exceeding the breaking capacity is prevented.
Regular maintenance taking time as a standard is a main maintenance mode of power equipment of a power system in China, and plays an important role in ensuring safe operation of the power equipment. The patent of application number CN202120407471.X discloses a fixing device of distribution network equipment, including base, footing and box, the top of base is provided with the footing, and the outside of footing is provided with the bolt, the left and right sides of base is provided with the buckle, the inboard of footing is provided with the gusset, and the top of gusset is provided with the locking lever, the middle part of locking lever is provided with the box, and the outside of box is provided with the fin, the top of box is provided with high-voltage terminal, and high-voltage terminal's the place ahead is provided with low-voltage terminal, low-voltage terminal's left side is provided with the oil level gauge, and one side that keeps away from the box central line of oil level gauge is provided with rings.
The fixing device of the power distribution network equipment is convenient to detach and install, does not need to adopt manual welding or clamp the horizontal bracket through the locking bolt by screwing a cross rod on the bottom foot, and is truly fixed and convenient. However, in the actual process of testing, overhauling or temporarily fixing the power equipment, the power equipment needs to be installed at different heights and different coordinate positions, the installation angle is also adjusted, the existing power equipment fixing device is difficult to fix the power equipment at different heights and different positions, and the universality is poor.
Disclosure of Invention
The invention aims to provide a fixing device and an operation method for power equipment of a power distribution network, which solve the problems that the existing power equipment fixing device is difficult to fix the power equipment at different heights and different coordinate positions and has poor universality through the functions of a supporting frame, a position adjusting frame, a moving rod and an equipment fixing seat.
In order to solve the technical problems, the invention is realized by the following technical scheme:
the invention relates to a fixing device for power equipment of a power distribution network, which comprises a support frame, wherein the support frame comprises a pair of movable supports capable of adjusting lifting and a pair of guide rails which are arranged at the bottoms of the pair of movable supports and matched with the bottom of the pair of movable supports; a plurality of first telescopic driving devices for accommodating are arranged between the pair of guide rails; the position adjusting frame can be arranged in the supporting frame in a left-right moving way; the position adjusting frame is of a rectangular frame structure; a limiting channel is formed in one opposite inner wall of the position adjusting frame, and a second telescopic driving device is respectively fixed in the other opposite inner wall of the position adjusting frame; the motion rods can be arranged in the limiting channels in a left-right moving way, and the peripheral sides of the motion rods are fixed with the telescopic ends of the second telescopic driving devices; at least one group of connecting ropes are fixed on the periphery of each motion rod; the equipment fixing seat is of a rectangular frame structure for fixing the power equipment and is fixed with the connecting rope; the angle plates for supporting and positioning the power equipment are fixed at the corners of the inner wall of the equipment fixing seat, and a plurality of positioning holes are formed in the angle plates.
Further, the movable bracket includes: the support cross plate is provided with a pair of hinged seats A at the bottom; a through groove is formed in one side surface of the supporting transverse plate; a fourth telescopic driving device for driving the position adjusting frame to transversely move is arranged in the through groove; the upper ends of the rotating plates are respectively hinged with the hinged support A; the racks are of L-shaped structures.
Further, one end of the rack is provided with a hinged support B hinged with the lower end of the rotating plate; the inner wall of the other end of the rack is provided with gear teeth.
Further, a pair of guide rails are internally provided with upright posts in a rotating fit manner, and gears meshed with racks are arranged in the upright posts; the upright post is connected with an output shaft of the motor; and a supporting shell is arranged below the motor.
Further, at least two groups of vertical plates are fixed at the top of the position adjusting frame, and a sliding block which is in sliding fit with the movable support is fixed at one side of the end part of each vertical plate.
Further, a third telescopic driving device and a guide rod are arranged between the vertical plate and the sliding block; and the third telescopic driving device drives the position adjusting frame to move back and forth to calibrate the front and back positions of the power equipment.
Further, a connecting block is fixed in the middle of the motion rod and is fixed with the telescopic end of the second telescopic driving device; baffles matched with the limiting channel openings are respectively fixed at two ends of the moving rod; the pair of second telescopic driving devices drive the pair of moving rods to move oppositely or reversely at the same time, and drive the equipment fixing seat to descend or ascend.
Further, a pair of opposite outer side surfaces of the equipment fixing seat are provided with semicircular grooves; a plurality of groups of mounting seats are fixed on the inner wall of the semicircular groove; a gap groove for avoiding is formed between each pair of mounting seats; and the mounting seat is rotationally connected with a positioning piece.
Further, the positioning piece is of a plate-shaped structure, and the bottom of the positioning piece is fixed with a plug rod; the inserted link is a power telescopic link structure.
The invention also provides an operation method of the fixing device for the power distribution network power equipment, which comprises the following steps:
stp1, placing the power equipment on an inner corner plate of the equipment fixing seat, and fixing the power equipment and the equipment fixing seat;
stp2 drives a pair of motion bars to move in opposite directions or in opposite directions through a second telescopic driving device, and the height positions of the equipment fixing seat and the power equipment are adjusted;
stp3 drives the longitudinal position of the adjusting frame through a third telescopic driving device, and drives the transverse position of the adjusting frame through a fourth telescopic driving device, so that the transverse and longitudinal positions of the power equipment are adjusted.
The invention has the following beneficial effects:
1. according to the invention, the plurality of first telescopic driving devices for storage are arranged between the pair of guide rails, so that the storage is conveniently carried out after the fixing work of the power equipment is finished, and the occupied space is saved.
2. According to the invention, the pair of second telescopic driving devices simultaneously work to drive the motion rod to move, so that the equipment fixing seat is driven to lift by the connecting rope; the angle of the equipment fixing seat can be adjusted when the pair of second telescopic driving devices do not work simultaneously.
3. According to the invention, the racks are meshed with the gears, the motor works to drive the gears to rotate, so that a pair of racks are driven to move oppositely or reversely, the height of the movable support is adjusted, the integral height of the support frame is adjusted in advance according to the installation height of the power equipment, and the support frame is also convenient to retract after the work is completed.
4. According to the invention, the inserted link is fixed at the bottom of the positioning piece, and is of a power telescopic link structure, after the height and the longitudinal and transverse positions of the electric equipment are primarily adjusted, the positioning piece is turned down, and the position of the equipment fixing seat is temporarily fixed by the dead weight of the equipment fixing seat and the electric equipment or the inserted link is driven downwards to drill into the ground by the inserted link, so that the efficiency in the installation, transportation and maintenance testing processes can be improved, a large amount of labor and material costs are saved, and the universality is strong.
Of course, it is not necessary for any one product to practice the invention to achieve all of the advantages set forth above at the same time.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed for the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic structural view of a fixing device for a power distribution network power equipment according to the present invention;
FIG. 2 is a front view of FIG. 1;
FIG. 3 is a schematic view of the structure of the movable bracket;
FIG. 4 is a schematic view of the structure of the guide rail;
FIG. 5 is a schematic view of the structure of a rack;
FIG. 6 is a schematic view of a position adjustment bracket;
FIG. 7 is a schematic view of a device holder;
fig. 8 is a schematic installation view of the position adjusting frame, the moving rod and the equipment fixing base.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Example 1
Referring to fig. 1, the present invention is a fixing device for power equipment of a power distribution network, including a support frame 1, wherein the support frame 1 includes a pair of movable supports capable of adjusting lifting, and a pair of guide rails 103 disposed at the bottoms of the pair of movable supports and cooperating with the pair of movable supports; a plurality of first telescopic driving devices 1035 for accommodating are arranged between the pair of guide rails 103, so that the electric equipment can be accommodated conveniently after the fixing work of the electric equipment is finished, and the occupied space is saved; the position adjusting frame 2 is arranged in the supporting frame 1 in a way that the position adjusting frame 2 can move left and right; the position adjusting frame 2 is of a rectangular frame structure; a limiting channel 201 is formed on one opposite inner wall of the position adjusting frame 2, and a second telescopic driving device 202 is respectively fixed on the other opposite inner wall of the position adjusting frame 2; the pair of motion bars 3, the motion bars 3 can move left and right and are arranged in the limiting channel 201, and the circumference sides of the motion bars 3 are fixed with the telescopic ends of the second telescopic driving device 202; at least one group of connecting ropes 301 are fixed on the periphery of each motion rod 3; the equipment fixing seat 4 is of a rectangular frame structure for fixing the power equipment, the equipment fixing seat 4 is fixed with the connecting rope 301, the second telescopic driving devices 202 work simultaneously to drive the moving rod 3 to move, so that the equipment fixing seat 4 is driven to lift through the connecting rope 301, when the second telescopic driving devices 202 do not work simultaneously, the angle of the equipment fixing seat 4 can be adjusted, particularly when the soil hardness of two sides of the equipment fixing seat 4 is different, the positioning pieces 5 can be inserted into different depths, so that the equipment fixing seat 4 is not horizontal, at the moment, the positioning pieces 5 on the softer side of soil are pulled up through the contraction of the second telescopic driving devices 202 for driving the second telescopic driving devices 202, and then the inserting rods 501 of the positioning pieces 5 on the harder side of soil are driven to drill downwards until the equipment fixing seat 4 is horizontal; the angle plates 401 for supporting and positioning the power equipment are fixed at the corners of the inner wall of the equipment fixing seat 4, and a plurality of positioning holes 402 are formed, and the approximate positions are selected first, and then the supporting frame 1 is placed, so that the power equipment is pre-fixed.
As shown in fig. 3, the movable bracket includes: a supporting cross plate 101, wherein a pair of hinge bases A1011 are arranged at the bottom of the supporting cross plate 101; a through groove 1012 is formed on one side surface of the supporting transverse plate 101; a fourth telescopic driving device for driving the position adjusting frame 2 to transversely move is arranged in the through groove 1012, and the fourth telescopic driving device works to drive the position adjusting frame 2 to transversely move in the through groove 1012; a pair of rotating plates 102, the upper ends of the rotating plates 102 are respectively hinged with the hinged support A1011; a pair of racks 104, the racks 104 being L-shaped in configuration. One end of the rack 104 is provided with a hinged support B1041 hinged with the lower end of the rotating plate 102; the inner wall of the other end of the rack 104 is provided with gear teeth 1042.
As shown in fig. 4, a pair of guide rails 103 are each provided with a column 1031 in a rotating fit, and a gear 1032 engaged with the rack 104 is installed in the column 1031; the upright post 1031 is connected with an output shaft of the motor 1033, a plurality of groups of movable rollers are arranged at the bottom of the guide rail 103, the motor 1033 works to drive the gear 1032 to rotate, so that a pair of racks 104 are driven to move in opposite directions or in opposite directions, the height of the movable support is adjusted, the whole height of the support frame 1 is adjusted in advance according to the installation height of the power equipment, the support frame is convenient to retract after the work is finished, and the movable rollers are convenient to move; a support housing 1034 is mounted below the motor.
Example two
On the basis of the above embodiment, as shown in fig. 6, at least two sets of risers 203 are fixed on the top of the position adjusting frame 2, and a sliding block 204 slidably matched with the movable bracket is fixed on one side of the end of each riser 203, so as to facilitate the lateral movement of the position adjusting frame 2. A third telescopic driving device 205 and a guide rod 206 are also arranged between the vertical plate 203 and the sliding block 204; the third telescopic driving means 205 drives the position adjusting frame 2 to move forward and backward to calibrate the front and rear position, i.e., the longitudinal position, of the power equipment, and the guide rod 206 guides the movement of the position adjusting frame 2.
As shown in fig. 8, a connecting block 303 is fixed in the middle of the motion rod 3 and is fixed with the telescopic end of the second telescopic driving device 202; the two ends of the motion rod 3 are respectively fixed with a baffle plate 302 matched with the opening of the limit channel 201; the pair of second telescopic driving devices 202 drive the pair of moving rods 3 to move oppositely or oppositely simultaneously to drive the equipment fixing seat 4 to descend or ascend, so that the height position of the equipment fixing seat 4 is adjusted, and the subsequent adjustment of the transverse and longitudinal positions is facilitated.
Example III
On the basis of the above embodiment, as shown in fig. 7-8, a pair of opposite outer sides of the device fixing base 4 are provided with semicircular grooves 403; a plurality of groups of mounting seats 404 are fixed on the inner wall of the semicircular groove 403; a notch groove 405 for avoiding is formed between each pair of mounting seats 404, so that the positioning piece 5 can conveniently rotate in a large angle; a positioning member 5 is rotatably connected to the mount 404. The positioning piece 5 is of a plate-shaped structure, and a plug rod 501 is fixed at the bottom of the positioning piece; the inserted link 501 is a power telescopic link structure, after the height of power equipment, vertically and horizontally position are preliminarily adjusted, the locating piece 5 is turned down, the position of the equipment fixing seat 4 is temporarily fixed through the equipment fixing seat 4 and the dead weight of the power equipment or the inserted link 501 is driven downwards to drill into the ground by itself, the efficiency in the installation, transportation and maintenance testing process can be improved, a large amount of manpower and material resource costs are saved, and the universality is strong.
Example IV
On the basis of the embodiment, the invention further provides an operation method of the fixing device for the power distribution network power equipment, which comprises the following steps:
stp1, placing the power equipment on a corner plate 401 in the equipment fixing seat 4, fixing the power equipment and the equipment fixing seat 4, pre-installing, and primarily fixing the power equipment;
stp2 drives a pair of moving rods 3 to move oppositely or reversely through a second telescopic driving device 202, and the height positions of a device fixing seat 4 and the power device are adjusted to be at a preset height, so that the power device is convenient to install;
stp3, through the vertical position of third flexible drive arrangement 205 drive regulation position adjustment frame 2 to through the horizontal position of fourth flexible drive arrangement drive regulation adjustment frame 2, thereby adjust the horizontal and vertical position of power equipment, thereby adjust the position of power equipment, when follow-up installation causes power equipment to appear the skew, can repeat above-mentioned step, check repeatedly, fix a position the installation with power equipment, avoid the inaccurate detection that leads to of mounted position, perhaps influence follow-up installation.
In the description of the present specification, the descriptions of the terms "one embodiment," "example," "specific example," and the like, mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The preferred embodiments of the invention disclosed above are intended only to assist in the explanation of the invention. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise form disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best understand and utilize the invention. The invention is limited only by the claims and the full scope and equivalents thereof.
Claims (10)
1. A fixture for power distribution network electrical equipment, comprising:
the support frame (1) comprises a pair of movable brackets capable of adjusting lifting and a pair of guide rails (103) which are arranged at the bottoms of the pair of movable brackets and matched with the bottom of the pair of movable brackets; a plurality of first telescopic driving devices (1035) for accommodating are arranged between the pair of guide rails (103);
the position adjusting frame (2) is arranged in the supporting frame (1) in a left-right movable way; the position adjusting frame (2) is of a rectangular frame structure; a limiting channel (201) is formed in one opposite inner wall of the position adjusting frame (2), and a second telescopic driving device (202) is respectively fixed in the other opposite inner wall of the position adjusting frame (2);
the motion rods (3) can move left and right and are arranged in the limiting channels (201), and the peripheral sides of the motion rods (3) are fixed with the telescopic ends of the second telescopic driving devices (202); at least one group of connecting ropes (301) are fixed on the periphery of each moving rod (3);
the equipment fixing seat (4), wherein the equipment fixing seat (4) is of a rectangular frame structure for fixing power equipment and is fixed with the connecting rope (301); corner plates (401) for supporting and positioning power equipment are fixed at the corners of the inner wall of the equipment fixing seat (4), and a plurality of positioning holes (402) are formed in the equipment fixing seat.
2. A fixing device for electrical equipment of an electrical distribution network according to claim 1, wherein the movable support comprises:
a support cross plate (101), wherein a pair of hinge bases A (1011) are arranged at the bottom of the support cross plate (101); a through groove (1012) is formed in one side surface of the supporting transverse plate (101); a fourth telescopic driving device for driving the position adjusting frame (2) to transversely move is arranged in the through groove (1012);
a pair of rotating plates (102), wherein the upper ends of the rotating plates (102) are respectively hinged with a hinged support A (1011);
and the racks (104) are of L-shaped structures.
3. A fixing device for electric power equipment of distribution network according to claim 2, characterized in that one end of the rack (104) is provided with a hinged support B (1041) hinged to the lower end of the rotating plate (102); the inner wall of the other end of the rack (104) is provided with gear teeth (1042).
4. A fixing device for electric power equipment of distribution network according to claim 2 or 3, characterized in that, a pair of said guide rails (103) are each fitted with a column (1031) in rotation, and in said column (1031) are mounted gears (1032) engaged with racks (104);
one of the columns (1031) is connected with an output shaft of a motor (1033).
5. The fixing device for the power equipment of the power distribution network according to claim 1, wherein at least two groups of vertical plates (203) are fixed on the top of the position adjusting frame (2), and a sliding block (204) which is in sliding fit with the movable support is fixed on one side of the end part of each vertical plate (203).
6. The fixing device for electric power equipment of electric power distribution network according to claim 5, characterized in that a third telescopic driving device (205) and a guide rod (206) are also arranged between the vertical plate (203) and the sliding block (204); the third telescopic driving device (205) drives the position adjusting frame (2) to move back and forth to calibrate the front and back positions of the power equipment.
7. The fixing device for the power equipment of the power distribution network according to claim 1, wherein a connecting block (303) is fixed in the middle of the motion rod (3) and is fixed with a telescopic end of the second telescopic driving device (202); baffle plates (302) matched with the openings of the limiting channels (201) are respectively fixed at two ends of the moving rod (3);
the pair of second telescopic driving devices (202) drive the pair of moving rods (3) to move oppositely or reversely at the same time, and drive the equipment fixing seat (4) to descend or ascend.
8. The fixing device for power equipment of a power distribution network according to claim 1, wherein a pair of opposite outer sides of the equipment fixing seat (4) are provided with semicircular grooves (403); a plurality of groups of mounting seats (404) are fixed on the inner wall of the semicircular groove (403); a gap groove (405) for avoiding is formed between each pair of mounting seats (404);
the mounting seat (404) is rotationally connected with a positioning piece (5).
9. A fixing device for electric power equipment of distribution network according to claim 8, characterized in that the positioning element (5) is of a plate-like structure and is fixed with a plug-in rod (501) at its bottom; the inserted link (501) is a power telescopic link structure.
10. A method of operating a fixture for electrical equipment in a power distribution network according to claim 6, comprising the steps of:
stp1, placing the power equipment on an inner angle plate (401) of the equipment fixing seat (4), and fixing the power equipment and the equipment fixing seat (4);
stp2 drives a pair of motion rods (3) to move in opposite directions or in opposite directions through a second telescopic driving device (202), and the height positions of the equipment fixing seat (4) and the power equipment are adjusted;
stp3 drives the longitudinal position of the position adjusting frame (2) through a third telescopic driving device (205), and drives the transverse position of the position adjusting frame (2) through a fourth telescopic driving device, so that the transverse and longitudinal positions of the electric equipment are adjusted.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111106374.8A CN113746009B (en) | 2021-09-22 | 2021-09-22 | Fixing device for power equipment of power distribution network and operation method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111106374.8A CN113746009B (en) | 2021-09-22 | 2021-09-22 | Fixing device for power equipment of power distribution network and operation method |
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| Publication Number | Publication Date |
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| CN113746009A CN113746009A (en) | 2021-12-03 |
| CN113746009B true CN113746009B (en) | 2023-07-25 |
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| CN202111106374.8A Active CN113746009B (en) | 2021-09-22 | 2021-09-22 | Fixing device for power equipment of power distribution network and operation method |
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Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE9304289U1 (en) * | 1993-03-22 | 1993-06-17 | Siemens Nixdorf Informationssysteme Ag, 4790 Paderborn, De | |
| CN105731266A (en) * | 2016-03-23 | 2016-07-06 | 国网山东省电力公司即墨市供电公司 | Power distribution cabinet carrying device |
| CN207404766U (en) * | 2017-10-18 | 2018-05-25 | 刘玉 | A kind of anti-skidding power equipment installation lifting apparatus |
| CN108516463B (en) * | 2018-04-04 | 2019-10-08 | 南京市栖霞区电力设备安装工程有限公司 | Lifting framework is used in large scale electrical power unit installation |
| CN208385848U (en) * | 2018-05-10 | 2019-01-15 | 廖像达 | A kind of power equipment support base |
| CN109264622A (en) * | 2018-10-26 | 2019-01-25 | 浙江亚鼎科技有限公司 | Lifting apparatus is used in a kind of installation of power equipment |
| CN213037381U (en) * | 2020-06-17 | 2021-04-23 | 武汉恒勤机电科技有限公司 | Power equipment mounting rack with automatic lifting function |
| CN111943081B (en) * | 2020-07-27 | 2021-11-26 | 国网江苏省电力有限公司徐州供电分公司 | Lifting auxiliary device for electric power equipment installation and use method thereof |
| CN113036646B (en) * | 2021-03-19 | 2022-10-21 | 青岛酒店管理职业技术学院 | High-temperature early warning device of power equipment |
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