CN214570536U - Electric power safety construction operation platform - Google Patents
Electric power safety construction operation platform Download PDFInfo
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- CN214570536U CN214570536U CN202120068249.1U CN202120068249U CN214570536U CN 214570536 U CN214570536 U CN 214570536U CN 202120068249 U CN202120068249 U CN 202120068249U CN 214570536 U CN214570536 U CN 214570536U
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- 238000010276 construction Methods 0.000 title claims abstract description 23
- 238000001125 extrusion Methods 0.000 claims abstract description 14
- 229910000831 Steel Inorganic materials 0.000 claims description 8
- 239000010959 steel Substances 0.000 claims description 8
- 230000001681 protective effect Effects 0.000 claims description 5
- 239000007787 solid Substances 0.000 claims description 4
- 238000010008 shearing Methods 0.000 claims 5
- 238000003466 welding Methods 0.000 claims 1
- 238000012423 maintenance Methods 0.000 abstract description 44
- 238000000034 method Methods 0.000 abstract description 6
- 230000000712 assembly Effects 0.000 abstract description 3
- 238000000429 assembly Methods 0.000 abstract description 3
- 230000009977 dual effect Effects 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000008602 contraction Effects 0.000 description 1
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Abstract
The utility model discloses an electric power safety construction service platform, which comprises a base and an operation platform, wherein the base and the operation platform are connected through a pair of scissors telescopic rods, the operation platform is lifted through the scissors telescopic rods, universal wheels are installed at the bottom of the base, and a supporting mechanism is also arranged at the bottom of the base; the operation platform is characterized in that a fixing mechanism is arranged on one side of the operation platform and comprises a fixing ring and a plurality of extrusion assemblies. The utility model discloses a set up fixed establishment, make the operation panel stabilize on the pillar of maintenance equipment to cut the fork telescopic link through the operation panel bottom and support, under fixed establishment and the fork telescopic link dual function of cutting, the operation panel in the high air of the guarantee height is balanced and stable, reduces rocking in the power maintenance workman working process, improves the construction quality of maintenance operation, guarantee constructor's life safety.
Description
Technical Field
The utility model belongs to the technical field of electric power safety construction is used as industry platform technique and specifically relates to an electric power safety construction is used as industry platform is related to.
Background
In the power construction operation, a power maintenance worker is often required to use special equipment to erect and overhaul a circuit at a high position, the power maintenance worker is required to get off from an operation platform when changing the maintenance angle or position every time, and the maintenance worker climbs up after moving the position, which wastes time and labor; most of the existing scissor-type aerial work platforms only support aerial work platforms through scissor telescopic rods, power maintenance workers are located in the air when power maintenance is carried out, the work platforms which can be maintained are unstable and shake, the power maintenance workers are hard to work, the construction quality of maintenance work is seriously affected, and danger is easy to occur.
SUMMERY OF THE UTILITY MODEL
The utility model discloses an it is not enough to overcome above-mentioned condition, aims at providing a technical scheme that electric power safety construction can solve above-mentioned problem with operation platform.
An electric power safety construction service platform comprises a base and an operation platform, wherein the base and the operation platform are connected through a pair of scissor telescopic rods, the operation platform is lifted through the scissor telescopic rods, two parallel guide rail plates are arranged in the base, strip-shaped guide grooves are formed in the guide rail plates, two ends of the bottom of each scissor telescopic rod are slidably mounted on the same strip-shaped guide groove through stop pins, the two scissor telescopic rods are connected through lead screws, a first electric cylinder is further arranged in the base, the output end of the first electric cylinder is fixed on the lead screws at the bottoms of the scissor telescopic rods, and the outer wall of the top of the scissor telescopic rods is rotatably connected with the bottom of the operation platform through shaft pins; the first electric cylinder is controlled to stretch through a power switch, and lead screws at two ends of the bottom of a scissor telescopic rod are pushed, so that the operation table is lifted; the bottom of the base is provided with a universal wheel which is fixedly connected with the bottom surface of the base through a bolt, and the bottom of the base is also provided with a supporting mechanism;
the device comprises an operation platform, and is characterized in that a fixing mechanism is arranged on one side of the operation platform, the fixing mechanism is connected with the operation platform through an electric push rod, the electric push rod is embedded into the operation platform, the fixing mechanism comprises a fixing ring and a plurality of extrusion components, the fixing ring comprises an upper half ring and a lower half ring, one end of the upper half ring is rotatably connected with one end of the lower half ring through a connecting shaft to form a structure capable of being opened and closed, a lock catch is arranged on the outer surface of the other end of the upper half ring and the outer surface of the other end of the lower half ring, and the lower half ring is connected with the output end of the electric push rod; the extrusion assembly comprises a mounting seat and a third electric cylinder, the mounting seat is located inside the upper half ring and the lower half ring and welded on the inner side wall of the outer ring of the fixing ring at equal intervals, the third electric cylinder is fixed on the mounting seat through bolts, the output end of the third electric cylinder penetrates through the inner ring wall of the fixing ring and faces the ring center of the fixing ring, a pressing block is arranged at the end of the output end of the third electric cylinder, the connecting end of the pressing block and the third electric cylinder is a rectangular steel block, the steel block is welded at the output end of the third electric cylinder, one end, far away from the third electric cylinder, of the pressing block is an elastic rubber block, one face, far away from the third electric cylinder, of the rubber block is an arc shape sunken towards one side of the steel block, and the rubber block can play a role in skid resistance, so that the fixing is firmer.
As a further aspect of the present invention: the supporting mechanism comprises a second electric cylinder and a supporting plate, the second electric cylinder is positioned in the base and is fixedly connected with the bottom plate of the base through a bolt, and the output end of the second electric cylinder penetrates through the bottom plate of the base and is connected with the top of the supporting plate through a thread; supporting mechanism is used for fixing operation platform base position, simultaneously, when meetting the ground unevenness, stretches out and draws back through the electronic jar of on-off control second, and the telescopic link of the electronic jar of second drives the backup pad and supports low-lying ground, has guaranteed the stability of operation platform, avoids operation platform slope harm constructor's self safety.
As a further aspect of the present invention: guard railings are arranged on the periphery above the operation platform.
As a further aspect of the present invention: the tool box is further arranged on the operation platform, the bottom of the tool box is adsorbed to the upper surface of the operation platform through a magnet and fixed on the stand columns of the protective guard through a pipe clamp, and a magnetic bottom plate is arranged inside the tool box.
As a further aspect of the present invention: and the upper half ring and the lower half ring are also provided with bolt fixing pieces at one end provided with the lock catch.
As a further aspect of the present invention: the guard rail is fixed with a plurality of safety belt fixing rings through screws.
The utility model has the advantages that:
the utility model discloses a set up fixed establishment, make the operation panel stabilize on the pillar of maintenance equipment to cut the fork telescopic link through the operation panel bottom and support, under fixed establishment and the fork telescopic link dual function of cutting, the operation panel in the high air of the guarantee height is balanced and stable, reduces rocking in the power maintenance workman working process, improves the construction quality of maintenance operation, guarantee constructor's life safety.
The fixing mechanism of the utility model vertically applies clamping force to the pillar of the maintenance equipment through the extrusion assembly, which can improve the clamping stability, and when the extrusion assembly relaxes the extrusion to the pillar of the maintenance equipment, the height and direction of the working platform can be adjusted to realize the maintenance of the equipment at the other side of the pillar of the maintenance equipment; the fixing mechanism changes the distance between the working platform and the support of the maintenance equipment through the electric push rod so as to realize the maintenance of the equipment around the support of the maintenance equipment, so that the maintenance of the equipment close to the support can be completed without getting off from the working platform when constructors operate in the air, and the time and the labor are saved.
The utility model discloses a set up supporting mechanism, fix operation panel base position, simultaneously, when meetting the ground unevenness, stretch out and draw back through the electronic jar of switch control, the telescopic link of electronic jar drives the backup pad and supports low-lying ground, has guaranteed the stability of operation panel, avoids operation panel slope harm constructor's self safety.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.
Fig. 1 is a schematic structural diagram of an electric power safety construction service platform provided in an embodiment of the present invention;
fig. 2 is a top view of a base in an electric power safety construction service platform according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a fixing mechanism in an operation platform for electric power safety construction provided by the specific embodiment of the present invention.
In the figure: 1-an operation table, 2-a base, 3-a scissor telescopic rod, 4-a universal wheel, 5-a support plate, 6-a second electric cylinder, 7-a protective guard, 8-a fixing ring, 801-an upper half ring, 802-a lower half ring, 9-an electric push rod, 10-a tool box, 1001-a pipe clamp, 11-a safety belt fixing ring, 12-an extrusion assembly, 1201-a mounting seat, 1202-a third electric cylinder, 1203-a pressing block, 13-a connecting shaft, 14-a first electric cylinder, 15-a lock catch, 16-a bolt fixing piece, 17-a stop pin, 18-a guide rail plate and 19-a lead screw.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
In the description of this patent, it is to be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientations and positional relationships indicated in the drawings for the convenience of describing the patent and for the simplicity of description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the patent.
The specific embodiment is as follows:
as shown in fig. 1 to 3, the embodiment of the utility model provides an electric power safety construction is used as industry platform, including base 2, operation panel 1, base 2 and operation panel 1 are connected through a pair of fork telescopic link 3 of cutting, operation panel 1 passes through the fork telescopic link 3 goes up and down.
As shown in fig. 2, two parallel guide rail plates 18 are arranged inside the base 2, a strip-shaped guide groove is formed in each guide rail plate 18, two ends of the bottom of a single scissors telescopic rod 3 are slidably mounted on the same strip-shaped guide groove through a stop pin 17, the two scissors telescopic rods 3 are connected through a lead screw 19, a first electric cylinder 14 is further arranged inside the base 2, an output end of the first electric cylinder 14 is fixed on the lead screw 19 at the bottom of the scissors telescopic rod 3, and the outer wall of the top of the scissors telescopic rod 3 is rotatably connected with the bottom of the workbench 1 through a shaft pin; the first electric cylinder 14 is controlled to stretch by the power switch, the lead screws 19 at two ends of the bottom of the scissor telescopic rod 3 are pushed, and the lifting of the operation table 1 is realized.
As shown in fig. 1, a universal wheel 4 is installed at the bottom of the base 2, the universal wheel 4 is fixedly connected with the bottom surface of the base 2 through a bolt, a supporting mechanism is further arranged at the bottom of the base 2, the supporting mechanism includes a second electric cylinder 6 and a supporting plate 5, the second electric cylinder 6 is located inside the base 2 and is fixedly connected with the bottom plate of the base 2 through a bolt, an output end of the second electric cylinder 6 penetrates through the bottom plate of the base 2 and is connected with the top of the supporting plate 5 through a thread, and the maximum stroke of the second electric cylinder 6 is greater than the distance from the bottom surface of the base 2 to the ground. The supporting mechanism is used for fixing the position of the base 2 of the operation platform 1, and meanwhile, when the ground is uneven, the second electric cylinder 6 is controlled to stretch through a switch, the telescopic rod of the second electric cylinder 6 drives the supporting plate 5 to support the ground of a low-lying place, the stability of the operation platform 1 is guaranteed, and the operation platform 1 is prevented from inclining to damage the self safety of constructors.
The utility model discloses a work platform, including operation panel 1, including solid fixed ring 8 and a plurality of extrusion subassembly 12, gu fixed ring 8 includes semi-ring 801 and lower semi-ring 802, go up semi-ring 801 one end and rotate with lower semi-ring 802 one end through connecting axle 13 and be connected, the semi-ring 801 other end is provided with hasp 15 with lower semi-ring 802 other end surface.
As shown in fig. 3, the fixing mechanism includes a fixing ring 8 and a plurality of squeezing assemblies 12, the fixing ring 8 includes an upper half ring 801 and a lower half ring 802, the lower half ring 802 is connected to the output end of the electric push rod 9, and the electric push rod 9 can extend and contract a distance that is not too long, so as to meet the strength requirement of the electric push rod 9. Go up semi-ring 801 one end and lower semi-ring 802 one end and pass through connecting axle 13 and rotate and be connected, form and to open and closed structure, go up the semi-ring 801 other end and be provided with hasp 15 with the semi-ring 802 other end surface, the fixing base of 15 one ends of hasp install in the border department of going up semi-ring 801 outer wall, the fixing base of the other end install in the border department of semi-ring 802 outer wall down, firmly connect last semi-ring 801 and lower semi-ring 802 through hasp 15 and form complete closed solid fixed ring 8, simple to operate, it is simple to use. Meanwhile, the bolt fixing piece 16 is further arranged on the upper end face of the upper half ring 801 and the lower half ring 802 at one end provided with the lock catch 15, the joint of the upper half ring 801 and the lower half ring 802 is reinforced through bolts, it is guaranteed that the fixing ring 8 is sleeved on a support of the maintenance equipment all the time in the working process and cannot be opened, and the stability of the working process is guaranteed.
As shown in fig. 3, the squeezing assemblies 12 are disposed at equal intervals inside the fixing ring 8, and include a mounting base 1201 and a third electric cylinder 1202, the mounting base 1201 is located inside the upper half ring 801 and the lower half ring 802, and is welded at equal intervals to the inner side wall of the outer ring of the fixing ring 8, the third electric cylinder 1202 is fixed on the mounting base 1201 through bolts, the output end of the third electric cylinder 1202 passes through the inner ring wall of the fixing ring 8 and faces the center of the fixing ring 8, the end of the output end of the third electric cylinder 1202 is provided with a pressing block, the connection end of the pressing block and the third electric cylinder 1202 is a rectangular steel block, the steel block is welded to the output end of the third electric cylinder 1202, the end of the pressing block 1203 far from the third electric cylinder 1202 is an elastic rubber block, the side of the rubber block far from the third electric cylinder 1202 is in an arc shape recessed towards the side of the steel block, the rubber block can play an anti-skidding role, so that the fixing is more firm.
The fixing mechanism vertically applies clamping force to the pillar of the maintenance equipment through the extrusion assembly 12, so that the clamping stability can be improved, and when the extrusion assembly 12 loosens the extrusion to the pillar of the maintenance equipment, the height and the direction of the working platform can be adjusted, so that the maintenance to equipment on the other side of the pillar of the maintenance equipment is realized; the fixing mechanism changes the distance between the working platform and the support of the maintenance equipment through the electric push rod 9 so as to realize the maintenance of the equipment around the support of the maintenance equipment, so that the maintenance of the equipment close to the support can be completed without getting off the operation platform 1 when constructors operate in the air, and the time and the labor are saved.
The first electric cylinder 14, the second electric cylinder 6, the third electric cylinder 1202 and the electric push rod 9 are all connected with an external power supply, and it is worth to be noted that the surfaces of the circuits exposed outside the device are all wrapped with insulating rubber layers, and the outer surface of the guard rail 7 is also wrapped with insulating rubber layers.
The utility model discloses a theory of operation is: the operation platform is moved through the universal wheels 4, when the operation platform is moved to the lower portion of the maintenance equipment, the fixing ring 8 is clamped on a support column of the maintenance equipment, the upper half ring 801 and the lower half ring 802 are firmly connected through the lock catch 15 and the bolt to form a complete closed fixing ring 8, the third electric cylinder 1202 on the fixing ring 8 is in a contraction state, and a movable gap exists between the pressing block 1203 and the support column. The first electric cylinder 14, the second electric cylinder 6 and the third electric cylinder 1202 are connected with an external power supply, an expansion rod of the second electric cylinder 6 is controlled to extend out through a switch, the support plate 5 is driven to support the ground at a low-lying position, and the position of the base 2 of the operation platform 1 is fixed; a maintenance worker places a tool to be used in the tool box 10, fixes the tool on the upright post of the protective guard 7 through the pipe clamp 1001 and adsorbs the tool on the upper surface of the operation table 1 through a magnet, so that the tool is more firmly fixed; an operator enters the operation platform 1 to tie a safety belt in the safety belt fixing ring 11, and pushes the lead screw 19 towards the middle by controlling the first electric cylinder 14, so that the scissor telescopic rod 3 drives the operation platform 1 to rise; after reaching suitable height, control first electronic jar 14 and stop, and control third electronic jar 1202 and carry out the clamp force of exerting perpendicularly to the pillar of maintenance equipment, make the block rubber closely laminate with the stand through the extrusion compact heap, make operation platform 1 stabilize on the pillar of maintenance equipment, under fixed establishment and the 3 dual functions of scissors fork telescopic link, operation platform 1 in the high air is balanced and stable to the assurance, reduce rocking in the power maintenance workman working process, improve the construction quality of maintenance operation, guarantee constructor's life safety.
When the maintenance direction needs to be changed, the third electric cylinder 1202 is controlled to contract by 1-2cm, the rubber block is guaranteed to be separated from the upright column, the second electric cylinder 6 and the third electric cylinder 1202 are controlled to extend out after the second motor is controlled to contract and move to the corresponding position, and the position of the operation platform 1 is fixed. When the distance between the maintenance point and the support column needs to be changed, the distance between the working platform and the support column of the maintenance equipment is changed by controlling the electric push rod 9 after the second motor is contracted, so that the maintenance of the equipment around the support column of the maintenance equipment is realized.
It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (6)
1. An electric power safe construction operation platform comprises a base and an operation platform, wherein the base and the operation platform are connected through a pair of scissor telescopic rods, the operation platform is lifted through the scissor telescopic rods, and the electric power safe construction operation platform is characterized in that,
the automatic shearing fork device is characterized in that two parallel guide rail plates are arranged in the base, a strip-shaped guide groove is formed in each guide rail plate, two ends of the bottom of a single shearing fork telescopic rod are slidably mounted on the same strip-shaped guide groove through stop pins, the two shearing fork telescopic rods are connected through lead screws, a first electric cylinder is further arranged in the base, the output end of the first electric cylinder is fixed on the lead screw at the bottom of the shearing fork telescopic rod, and the outer wall of the top of the shearing fork telescopic rod is rotatably connected with the bottom of the operation table through a shaft pin; the universal wheels are mounted at the bottom of the base, and the supporting mechanism is further arranged at the bottom of the base;
a fixing mechanism is arranged on one side of the operating platform and is connected with the operating platform through an electric push rod, the electric push rod is embedded into the operating platform, the fixing mechanism comprises a fixing ring and a plurality of extrusion components, the fixing ring comprises an upper half ring and a lower half ring, one end of the upper half ring is rotatably connected with one end of the lower half ring through a connecting shaft, a lock catch is arranged on the outer surfaces of the other ends of the upper half ring and the lower half ring, and the lower half ring is connected with the output end of the electric push rod;
the extrusion subassembly includes mount pad, the electronic jar of third, the mount pad be located go up the inside of semi-ring and lower semi-ring to equidistant welding is on the inside wall of solid fixed ring outer loop, the electronic jar of third passes through the bolt fastening in on the mount pad, the output of the electronic jar of third passes gu fixed ring's inner ring rampart to towards solid fixed ring center department, the tip of the output of the electronic jar of third is provided with the compact heap, the compact heap with the link of the electronic jar of third is a rectangle steel billet, the one end that the electronic jar of third was kept away from to the compact heap is the block rubber, the one side that the electronic jar of third was kept away from to the block rubber is towards the sunken arc in steel billet one side.
2. The electric safety construction work platform according to claim 1, wherein the supporting mechanism comprises a second electric cylinder and a supporting plate, the second electric cylinder is located inside the base and fixedly connected with the bottom plate of the base through a bolt, and an output end of the second electric cylinder penetrates through the bottom plate of the base and is connected with the top of the supporting plate through a thread.
3. The electric power safety construction work platform as claimed in claim 1, wherein guard rails are arranged on the periphery above the work platform.
4. The electric power safety construction work platform as claimed in claim 3, wherein a tool box is further arranged on the work platform, the bottom of the tool box is attached to the upper surface of the work platform through a magnet and fixed on a stand column of a protective guard through a pipe clamp, and a magnetic bottom plate is arranged inside the tool box.
5. The work platform for electric power safety construction as claimed in claim 1, wherein the upper and lower half rings are further provided with bolt fixing members at one ends thereof provided with the locking catches.
6. The electric safety construction work platform as claimed in claim 3, wherein a plurality of safety belt fixing rings are fixed on the guard rail through screws.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120068249.1U CN214570536U (en) | 2021-01-11 | 2021-01-11 | Electric power safety construction operation platform |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120068249.1U CN214570536U (en) | 2021-01-11 | 2021-01-11 | Electric power safety construction operation platform |
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| Publication Number | Publication Date |
|---|---|
| CN214570536U true CN214570536U (en) | 2021-11-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120068249.1U Active CN214570536U (en) | 2021-01-11 | 2021-01-11 | Electric power safety construction operation platform |
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| CN (1) | CN214570536U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114180501A (en) * | 2021-12-13 | 2022-03-15 | 湖北金诚信矿业服务有限公司 | Device for mine maintenance |
| CN114408817A (en) * | 2021-12-17 | 2022-04-29 | 国网河南省电力公司温县供电公司 | Protective device for circuit maintenance |
| CN115676723A (en) * | 2022-11-18 | 2023-02-03 | 云南电网有限责任公司电力科学研究院 | Elevator with high-voltage insulation capacity |
| CN117359573A (en) * | 2023-12-08 | 2024-01-09 | 广州唯友斯工程机械配件有限公司 | Crane maintenance frame with safety self-locking function |
-
2021
- 2021-01-11 CN CN202120068249.1U patent/CN214570536U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114180501A (en) * | 2021-12-13 | 2022-03-15 | 湖北金诚信矿业服务有限公司 | Device for mine maintenance |
| CN114180501B (en) * | 2021-12-13 | 2022-06-21 | 湖北金诚信矿业服务有限公司 | Device for mine maintenance |
| CN114408817A (en) * | 2021-12-17 | 2022-04-29 | 国网河南省电力公司温县供电公司 | Protective device for circuit maintenance |
| CN115676723A (en) * | 2022-11-18 | 2023-02-03 | 云南电网有限责任公司电力科学研究院 | Elevator with high-voltage insulation capacity |
| CN117359573A (en) * | 2023-12-08 | 2024-01-09 | 广州唯友斯工程机械配件有限公司 | Crane maintenance frame with safety self-locking function |
| CN117359573B (en) * | 2023-12-08 | 2024-02-20 | 广州唯友斯工程机械配件有限公司 | Crane maintenance frame with safety self-locking function |
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Effective date of registration: 20240510 Address after: 238100 Dongshan Administrative Village, Huanfeng Town, Hanshan County, Ma'anshan City, Anhui Province Patentee after: Ma'anshan Hancheng Road and Bridge Engineering Co.,Ltd. Country or region after: China Address before: 065201 office 221, second floor, MCC First Bureau (Hebei) Electric Power Co., Ltd., Yanjiao Development Zone, Sanhe City, Langfang City, Hebei Province Patentee before: Wang Li Country or region before: China |