CN105552757A - Portable distribution transformer lifting frame - Google Patents
Portable distribution transformer lifting frame Download PDFInfo
- Publication number
- CN105552757A CN105552757A CN201610027195.8A CN201610027195A CN105552757A CN 105552757 A CN105552757 A CN 105552757A CN 201610027195 A CN201610027195 A CN 201610027195A CN 105552757 A CN105552757 A CN 105552757A
- Authority
- CN
- China
- Prior art keywords
- support bar
- anchor ear
- arc sections
- loose
- vertical portion
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000007789 sealing Methods 0.000 claims description 15
- 210000004907 gland Anatomy 0.000 claims description 8
- 239000000725 suspension Substances 0.000 claims description 6
- 238000009434 installation Methods 0.000 abstract description 12
- 230000000694 effects Effects 0.000 abstract description 9
- 102100023170 Nuclear receptor subfamily 1 group D member 1 Human genes 0.000 description 10
- 101100460844 Mus musculus Nr2f6 gene Proteins 0.000 description 8
- 230000001105 regulatory effect Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B3/00—Apparatus specially adapted for the manufacture, assembly, or maintenance of boards or switchgear
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Power Engineering (AREA)
- Housings And Mounting Of Transformers (AREA)
Abstract
The invention relates to a portable distribution transformer lifting frame, comprising a loose-leaf hold hoop, a fixed hold hoop and a supporting rod; one end of the supporting rod is rotationally connected on the loose-leaf hold hoop; a length adjustable adjusting assembly is arranged on the fixed hold hoop; the adjusting assembly is connected to the other end of the supporting rod; a connecting element is arranged on the supporting rod. The lifting frame of the invention is advantaged by that the supporting rod is fixedly connected to an electric pole through the loose-leaf hold hoop and the fixed hold hoop; the connecting element is connected with power distribution equipment; the supporting rod is lifted through adjusting the length of the adjusting assembly; compared with the lifting of the existing forklift and crane, the existing lifting time is greatly reduced; the tool is light in weight; the installation workload is low; the security performance is high; the installation cost is low; the fixing effect is improved by matching the loose-leaf hold hoop, the fixed hold hoop and the electric pole; close adhesion with the electric pole is ensured; the supporting area is large; the security performance is high; the position of the supporting rod on the loose-leaf hold hoop can be adjusted through adjusting the length of the adjusting assembly; and the installation flexibility is improved.
Description
Technical field
The present invention relates to Portable distribution transformer mast-up.
Background technology
In electric power system, bar rack type transformer, when overhauling transformer, the switch cubicle that construction needs lifting heavier, usually by the conditionality such as terrain environment, Regulations, cause lifting mode multifarious by landform, that transportation condition limits restricted factor is many, composite class instrument length consuming time, depends on fork truck, crane has been helped, cost is huge, and man-hour is longer.
Summary of the invention
The technical problem to be solved in the present invention is just to provide Portable distribution transformer mast-up, the problem that cost is large and man-hour is long existed when solving the lifting of existing transformer.
In order to solve the problems of the technologies described above, the present invention is achieved by the following technical solutions: Portable distribution transformer mast-up, comprise loose-leaf anchor ear, fixing anchor ear and support bar, the vertical axis of loose-leaf anchor ear overlaps with the vertical axis of fixing anchor ear, fixing anchor ear is arranged on the top of loose-leaf anchor ear, one end of support bar is rotatably connected on loose-leaf anchor ear, fixing anchor ear is provided with length-adjustable adjusting part, adjusting part is connected with the other end of support bar, support bar is provided with the connector connecting controller switching equipment.
Preferably, adjusting part is adjustable diagonal tie, and one end of adjustable diagonal tie is rotatably connected on fixing anchor ear by the first bolt assembly, and the other end of adjustable diagonal tie is movably connected on the other end of support bar, and regulating effect is good, and precision is high, and result of use is good.
Preferably, support bar is provided with tube connector, tube connector comprises the first vertical portion, the second vertical portion and arc sections, arc sections is arranged between the first vertical portion and the second vertical portion, first vertical portion and the second vertical portion are all fixedly connected on support bar, and adjustable diagonal tie is connected with arc sections, are convenient to adjustable diagonal tie activity, connect reliable, prevent loosening of support bar.
Preferably, support bar is provided with two through holes, first vertical portion and the second vertical portion are all fixedly connected in through hole, support bar is provided with sealing plate, be provided with the joint pin matched with through hole on sealing plate, on sealing plate, be provided with trip bolt, hold out against the first vertical portion and the second vertical portion by the trip bolt on sealing plate, the loosening of tube connector when preventing lifting, security performance is high.
Preferably, sealing plate bottom be provided with connecting ring, the top of connecting ring is provided with contiguous block, support bar is provided with the link slot being fixedly connected with block, support bar is provided with scotch, contiguous block is provided with the holddown groove of fixed stop block, support bar is provided with the connecting hole communicated with link slot, also can be connected with controller switching equipment by connecting ring, improve selectivity during lifting, connect reliable, Practical Performance is good, coordinated with holddown groove by scotch, can effectively prevent connecting ring from departing from support bar, security performance is high.
Preferably, connector comprises screw rod and suspension ring, and suspension ring are arranged on the bottom of screw rod, and screw rod is provided with nut, and support bar is provided with the screwed hole of standing screw, and connect reliable, lifting is convenient, and overall structure is stablized.
Preferably, support bar is provided with pressing plate, pressing plate comprises horizontal part and the 3rd vertical portion, 3rd vertical portion is fixedly connected on support bar by screw, the bottom of horizontal part is provided with the gland preventing nut loosening, and nut is arranged in gland, and the gland be provided with by pressing plate prevents loosening of nut, avoid screw rod and depart from support bar, security performance is high.
Preferably, loose-leaf anchor ear comprises the first arc sections and the second arc sections, one end of first arc sections is connected by the first axis of rotation with one end of the second arc sections, the other end of the first arc sections is fixedly connected with by the second bolt assembly with the other end of the second arc sections, second arc sections is provided with the fixed head of fixed support bar, and support bar is connected on fixed head by the second axis of rotation, can be fixed on the electric pole of different model, good fixing effect, easy installation and removal.
Preferably, support bar is provided with stopper slot, and fixed head is arranged in stopper slot, prevents fixed head to be separated with support bar, connects reliable.
Preferably, fixing anchor ear comprises three-arc portion and the 4th arc sections, the one end in three-arc portion is fixedly connected with by the 3rd bolt assembly with one end of the 4th arc sections, adjustable diagonal tie is arranged between three-arc portion and the 4th arc sections, can be fixed on the electric pole of different model, good fixing effect, easy installation and removal.
In sum, advantage of the present invention: support bar is fixedly connected on electric pole by loose-leaf anchor ear and fixing anchor ear, the connector be provided with by support bar is connected with controller switching equipment, by the adjustable length of adjusting part, support bar is being hoisted, relative to existing fork truck, crane lifts by crane, greatly reduce the time of existing lifting, instrument is lightweight, installation workload is little, security performance is high, installation cost is low, coordinated with electric pole by loose-leaf anchor ear and fixing anchor ear, fixed effect can be improved, can ensure to fit tightly with electric pole, supporting surface is large, security performance is high, different electric poles can be adapted to, by the length adjustment adjustment position of support bar on loose-leaf anchor ear of adjusting part, improve the flexibility of installation, the vertical center line of loose-leaf anchor ear and fixing anchor ear is arranged to coincident configurations, ensure that stationarity, improve the reliability of installation.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the invention will be further described:
Fig. 1 is the structural representation of Portable distribution transformer mast-up of the present invention;
Fig. 2 is the structural representation that tube connector of the present invention is installed;
Fig. 3 is the partial enlarged drawing of A in Fig. 1;
Fig. 4 is the structural representation that loose-leaf anchor ear of the present invention is connected with support bar;
Fig. 5 is the structural representation that the present invention fixes anchor ear.
Embodiment
As Fig. 1, Fig. 2, Fig. 3, Fig. 4, shown in Fig. 5, Portable distribution transformer mast-up, comprise loose-leaf anchor ear 1, fixing anchor ear 2 and support bar 3, the vertical axis of loose-leaf anchor ear 1 overlaps with the vertical axis of fixing anchor ear 2, fixing anchor ear 2 is arranged on the top of loose-leaf anchor ear 1, one end of support bar 3 is rotatably connected on loose-leaf anchor ear 1, fixing anchor ear 2 is provided with length-adjustable adjusting part 4, adjusting part 4 is connected with the other end of support bar 3, support bar 3 is provided with the connector 5 connecting controller switching equipment, adjusting part 4 is adjustable diagonal tie, one end of adjustable diagonal tie is rotatably connected on fixing anchor ear 2 by the first bolt assembly 41, the other end of adjustable diagonal tie is movably connected on the other end of support bar 3, regulating effect is good, precision is high, result of use is good.
Support bar 3 is provided with tube connector 6, tube connector 6 comprises the first vertical portion 61, second vertical portion 62 and arc sections 63, arc sections 63 is arranged between the first vertical portion 61 and the second vertical portion 62, first vertical portion 61 and the second vertical portion 62 are all fixedly connected on support bar 3, adjustable diagonal tie is connected with arc sections 63, be convenient to adjustable diagonal tie activity, connect reliable, prevent loosening of support bar, support bar 3 is provided with two through holes 30, first vertical portion 61 and the second vertical portion 62 are all fixedly connected in through hole, support bar 3 is provided with sealing plate 31, sealing plate 31 is provided with the joint pin 32 matched with through hole 30, sealing plate 31 is provided with trip bolt 33, the first vertical portion and the second vertical portion is held out against by the trip bolt on sealing plate, when preventing lifting, tube connector loosens, security performance is high, the bottom of sealing plate 31 is provided with connecting ring 34, the top of connecting ring 34 is provided with contiguous block 35, support bar 3 is provided with the link slot 36 being fixedly connected with block 35, support bar 3 is provided with scotch 37, contiguous block 35 is provided with the holddown groove 38 of fixed stop block 37, support bar 3 is provided with the connecting hole 39 communicated with link slot 36, also can be connected with controller switching equipment by connecting ring, improve selectivity during lifting, connect reliable, Practical Performance is good, coordinated with holddown groove by scotch, can effectively prevent connecting ring from departing from support bar, security performance is high.
Connector 5 comprises screw rod 51 and suspension ring 52, suspension ring 52 are arranged on the bottom of screw rod 51, screw rod 51 is provided with nut 53, support bar 3 is provided with the screwed hole of standing screw 51, connect reliable, lifting is convenient, overall structure is stablized, support bar 3 is provided with pressing plate 7, pressing plate 7 comprises horizontal part 71 and the 3rd vertical portion 72, 3rd vertical portion 72 is fixedly connected on support bar 3 by screw 73, the bottom of horizontal part 71 is provided with the gland 74 preventing nut loosening, nut 53 is arranged in gland 74, the gland be provided with by pressing plate prevents loosening of nut, avoid screw rod and depart from support bar, security performance is high.
Loose-leaf anchor ear 1 comprises the first arc sections 11 and the second arc sections 12, one end of first arc sections 11 and one end of the second arc sections 12 are rotationally connected by the first rotating shaft 13, the other end of the first arc sections 11 is fixedly connected with by the second bolt assembly 14 with the other end of the second arc sections 12, second arc sections is provided with the fixed head 15 of fixed support bar 3, support bar 3 is rotatably connected on fixed head 15 by the second rotating shaft 16, can be fixed on the electric pole of different model, good fixing effect, easy installation and removal, support bar 3 is provided with stopper slot 10, fixed head 15 is arranged in stopper slot 10, fixed head is prevented to be separated with support bar, connect reliable, fixing anchor ear 2 comprises three-arc portion 21 and the 4th arc sections 22, the one end in three-arc portion 21 is fixedly connected with by the 3rd bolt assembly 23 with one end of the 4th arc sections 22, adjustable diagonal tie is arranged between three-arc portion 21 and the 4th arc sections 22, can be fixed on the electric pole of different model, good fixing effect, easy installation and removal, in order to improve the fastening effect of loose-leaf anchor ear 1 and fixing anchor ear 3, rubber strip is inlaid with at the madial wall of loose-leaf anchor ear 1 and fixing anchor ear 3.
During use, loose-leaf anchor ear 1 and fixing anchor ear 2 are arranged on electric pole, loose-leaf anchor ear 1 and fixing anchor ear 2 are fitted tightly with electric pole, be connected needing the controller switching equipment installed with connector 5 by lifting rope or steel wire rope, then the length of adjustable diagonal tie is regulated, support bar 3 is made to rotate on loose-leaf anchor ear 1 around the second rotating shaft 16, support bar 3 is made to increase, thus the lifting realized controller switching equipment, the connecting ring 34 that also can be provided with by sealing plate 31 connects controller switching equipment, can adapt to different lifting environment and installation environment.
Except above preferred embodiment, the present invention also has other execution mode, and those skilled in the art can make various change and distortion according to the present invention, only otherwise depart from spirit of the present invention, all should belong to the scope that claims of the present invention define.
Claims (10)
1. Portable distribution transformer mast-up, it is characterized in that: comprise loose-leaf anchor ear (1), fixing anchor ear (2) and support bar (3), the vertical axis of loose-leaf anchor ear (1) overlaps with the vertical axis of fixing anchor ear (2), fixing anchor ear (2) is arranged on the top of loose-leaf anchor ear (1), one end of support bar (3) is rotatably connected on loose-leaf anchor ear (1), fixing anchor ear (2) is provided with length-adjustable adjusting part (4), adjusting part (4) is connected with the other end of support bar (3), support bar (3) is provided with the connector (5) connecting controller switching equipment.
2. Portable distribution transformer mast-up according to claim 1, it is characterized in that: adjusting part (4) is adjustable diagonal tie, one end of adjustable diagonal tie is rotatably connected on fixing anchor ear (2) by the first bolt assembly (41), and the other end of adjustable diagonal tie is movably connected on the other end of support bar (3).
3. Portable distribution transformer mast-up according to claim 2, it is characterized in that: support bar (3) is provided with tube connector (6), tube connector (6) comprises the first vertical portion (61), the second vertical portion (62) and arc sections (63), arc sections (63) is arranged between the first vertical portion (61) and the second vertical portion (62), first vertical portion 61) and the second vertical portion (62) be all fixedly connected on support bar (3), adjustable diagonal tie is connected with arc sections (63).
4. Portable distribution transformer mast-up according to claim 3, it is characterized in that: support bar (3) is provided with two through holes (30), first vertical portion (61) and the second vertical portion (62) are all fixedly connected in through hole, support bar (3) is provided with sealing plate (31), sealing plate (31) is provided with the joint pin (32) matched with through hole (30), and sealing plate (31) is provided with trip bolt (33).
5. Portable distribution transformer mast-up according to claim 4, it is characterized in that: the bottom of sealing plate (31) is provided with connecting ring (34), the top of connecting ring (34) is provided with contiguous block (35), support bar (3) is provided with the link slot (36) being fixedly connected with block (35), support bar (3) is provided with scotch (37), contiguous block (35) is provided with the holddown groove (38) of fixed stop block (37), and support bar (3) is provided with the connecting hole (39) communicated with link slot (36).
6. Portable distribution transformer mast-up according to claim 1, it is characterized in that: connector (5) comprises screw rod (51) and suspension ring (52), suspension ring (52) are arranged on the bottom of screw rod (51), screw rod (51) is provided with nut (53), and support bar (3) is provided with the screwed hole of standing screw (51).
7. Portable distribution transformer mast-up according to claim 6, it is characterized in that: support bar (3) is provided with pressing plate (7), pressing plate (7) comprises horizontal part (71) and the 3rd vertical portion (72), 3rd vertical portion (72) is fixedly connected on support bar (3) by screw (73), the bottom of horizontal part (71) is provided with the gland (74) preventing nut loosening, and nut (53) is arranged in gland (74).
8. Portable distribution transformer mast-up according to claim 1, it is characterized in that: loose-leaf anchor ear (1) comprises the first arc sections (11) and the second arc sections (12), one end of first arc sections (11) and one end of the second arc sections (12) are rotationally connected by the first rotating shaft (13), the other end of the first arc sections (11) is fixedly connected with by the second bolt assembly (14) with the other end of the second arc sections (12), second arc sections is provided with the fixed head (15) of fixed support bar (3), support bar (3) is rotatably connected on fixed head (15) by the second rotating shaft (16).
9. Portable distribution transformer mast-up according to claim 8, is characterized in that: support bar (3) is provided with stopper slot (10), and fixed head (15) is arranged in stopper slot (10).
10. Portable distribution transformer mast-up according to claim 2, it is characterized in that: fixing anchor ear (2) comprises three-arc portion (21) and the 4th arc sections (22), the one end in three-arc portion (21) is fixedly connected with by the 3rd bolt assembly (23) with one end of the 4th arc sections (22), and adjustable diagonal tie is arranged between three-arc portion (21) and the 4th arc sections (22).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610027195.8A CN105552757B (en) | 2016-01-15 | 2016-01-15 | Portable distribution transformer mast-up |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610027195.8A CN105552757B (en) | 2016-01-15 | 2016-01-15 | Portable distribution transformer mast-up |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105552757A true CN105552757A (en) | 2016-05-04 |
| CN105552757B CN105552757B (en) | 2017-07-21 |
Family
ID=55831784
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610027195.8A Active CN105552757B (en) | 2016-01-15 | 2016-01-15 | Portable distribution transformer mast-up |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105552757B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109399481A (en) * | 2018-01-26 | 2019-03-01 | 国网浙江省电力公司湖州供电公司 | Improved portable distribution transforming hanger |
| CN111490462A (en) * | 2020-04-20 | 2020-08-04 | 潍坊工程职业学院 | Electric power engineering mounting structure |
| CN111614005A (en) * | 2020-06-01 | 2020-09-01 | 国网浙江省电力有限公司湖州供电公司 | Disassembling and assembling method for distribution transformer |
| CN112033758A (en) * | 2020-09-02 | 2020-12-04 | 上海海洋大学 | Reef bottom sea area sediment collecting device |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007312452A (en) * | 2006-05-16 | 2007-11-29 | Nishishiba Electric Co Ltd | Switchboard |
| CN201450254U (en) * | 2009-06-23 | 2010-05-05 | 江苏省电力公司仪征市供电公司 | Hanger frame for mounting power switch |
| CN203278042U (en) * | 2013-04-19 | 2013-11-06 | 安徽省电力公司蚌埠供电公司 | Hoisting apparatus for electric power equipment for substation |
| KR20140101950A (en) * | 2013-02-13 | 2014-08-21 | 한신전기주식회사 | Heavy weight lifting device |
| CN204597302U (en) * | 2015-04-03 | 2015-08-26 | 广东梅雁吉祥水电股份有限公司 | A kind of regulator cubicle erecting device |
| CN204689451U (en) * | 2015-06-11 | 2015-10-07 | 国网山东滨州市滨城区供电公司 | A kind of power transformation device simple and easy hoisting erecting frame |
| CN205282958U (en) * | 2016-01-15 | 2016-06-01 | 国网浙江省电力公司湖州供电公司 | Portable joining in marriage becomes hoist and mount frame |
-
2016
- 2016-01-15 CN CN201610027195.8A patent/CN105552757B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007312452A (en) * | 2006-05-16 | 2007-11-29 | Nishishiba Electric Co Ltd | Switchboard |
| CN201450254U (en) * | 2009-06-23 | 2010-05-05 | 江苏省电力公司仪征市供电公司 | Hanger frame for mounting power switch |
| KR20140101950A (en) * | 2013-02-13 | 2014-08-21 | 한신전기주식회사 | Heavy weight lifting device |
| CN203278042U (en) * | 2013-04-19 | 2013-11-06 | 安徽省电力公司蚌埠供电公司 | Hoisting apparatus for electric power equipment for substation |
| CN204597302U (en) * | 2015-04-03 | 2015-08-26 | 广东梅雁吉祥水电股份有限公司 | A kind of regulator cubicle erecting device |
| CN204689451U (en) * | 2015-06-11 | 2015-10-07 | 国网山东滨州市滨城区供电公司 | A kind of power transformation device simple and easy hoisting erecting frame |
| CN205282958U (en) * | 2016-01-15 | 2016-06-01 | 国网浙江省电力公司湖州供电公司 | Portable joining in marriage becomes hoist and mount frame |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109399481A (en) * | 2018-01-26 | 2019-03-01 | 国网浙江省电力公司湖州供电公司 | Improved portable distribution transforming hanger |
| CN109399481B (en) * | 2018-01-26 | 2023-08-11 | 国网浙江省电力公司湖州供电公司 | Improved portable distribution transformer hanging bracket |
| CN111490462A (en) * | 2020-04-20 | 2020-08-04 | 潍坊工程职业学院 | Electric power engineering mounting structure |
| CN111614005A (en) * | 2020-06-01 | 2020-09-01 | 国网浙江省电力有限公司湖州供电公司 | Disassembling and assembling method for distribution transformer |
| CN112033758A (en) * | 2020-09-02 | 2020-12-04 | 上海海洋大学 | Reef bottom sea area sediment collecting device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105552757B (en) | 2017-07-21 |
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Inventor after: Chen Zhen Inventor after: Ye Keqin Inventor after: Xu Jing Inventor after: Xu Wenhui Inventor after: Chen Shijun Inventor after: Lai Jianfang Inventor after: Xu Jianping Inventor after: Qin Shiyue Inventor before: Chen Zhen Inventor before: Ye Keqin Inventor before: Qin Shiyue Inventor before: Xu Wenhui Inventor before: Chen Shijun Inventor before: Lai Jianfang Inventor before: Xu Jianping Inventor before: Xu Jing |
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Address after: 313000 No. 777 Fenghuang Road, Huzhou economic and Technological Development Zone, Huzhou, Zhejiang Co-patentee after: STATE GRID CORPORATION OF CHINA Patentee after: Zhejiang Tailun Power Group Co.,Ltd. Address before: 313000 No. 777 Fenghuang Road, Huzhou economic and Technological Development Zone, Huzhou, Zhejiang Co-patentee before: State Grid Corporation of China Patentee before: HUZHOU POWER SUPPLY COMPANY OF STATE GRID ZHEJIANG ELECTRIC POWER Co. |
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| CP01 | Change in the name or title of a patent holder | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Application publication date: 20160504 Assignee: ZHEJIANG TAILUN POWER GROUP Co.,Ltd. DISTRIBUTION ENGINEERING BRANCH Assignor: State Grid Zhejiang Electric Power Co., Ltd. Huzhou Power Supply Co. Contract record no.: X2020330000056 Denomination of invention: Portable distribution transformer lifting frame Granted publication date: 20170721 License type: Common License Record date: 20200807 |
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| EE01 | Entry into force of recordation of patent licensing contract | ||
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Effective date of registration: 20211015 Address after: 313000 Huzhou City, Zhejiang Province, 345 round City West Road 4-8 layer Patentee after: Zhejiang Tailun Power Group Co.,Ltd. Address before: 313000 Fenghuang Road, Huzhou economic and Technological Development Zone, Huzhou, Zhejiang 777 Patentee before: State Grid Zhejiang Electric Power Co., Ltd. Huzhou Power Supply Co. Patentee before: STATE GRID CORPORATION OF CHINA |