CN105655210B - A kind of breaker and its transmission device - Google Patents
A kind of breaker and its transmission device Download PDFInfo
- Publication number
- CN105655210B CN105655210B CN201610129453.3A CN201610129453A CN105655210B CN 105655210 B CN105655210 B CN 105655210B CN 201610129453 A CN201610129453 A CN 201610129453A CN 105655210 B CN105655210 B CN 105655210B
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- CN
- China
- Prior art keywords
- pin shaft
- slip ring
- guide groove
- hinging pin
- tie
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- 230000005540 biological transmission Effects 0.000 title claims abstract description 39
- 230000033001 locomotion Effects 0.000 claims abstract description 30
- 230000002093 peripheral effect Effects 0.000 claims description 15
- 238000005299 abrasion Methods 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
- H01H71/10—Operating or release mechanisms
Landscapes
- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
- Lubricants (AREA)
- Steering-Linkage Mechanisms And Four-Wheel Steering (AREA)
Abstract
The present invention relates to a kind of breaker and its transmission devices.The breaker includes transmission device, transmission device includes the cross-tie being connected with moving contact and is driven the connecting lever being connected to drive the pivot center of cross-tie side-to-side movement to extend along the longitudinal direction with cross-tie by connecting plate, one end of connecting plate is hinged and connected with connecting lever, the other end of connecting plate is hinged and connected by the hinging pin shaft that axis extends along the longitudinal direction with cross-tie, transmission device further includes hinging pin shaft guide part, is provided on hinging pin shaft guide part and the hinging pin shaft hinging pin shaft guide frame that guiding movement cooperates in the lateral direction.By the constraint of hinging pin shaft guide frame, active force in left-right direction is only passed to cross-tie by hinging pin shaft, the vertical component that cross-tie is not transmitted substantially by connecting lever, this makes between cross-tie guide frame and cross-tie that friction is small, the abrasion of cross-tie guide frame and cross-tie is also smaller, helps to improve transmission efficiency and motion credibility.
Description
Technical field
The invention belongs to high-voltage switch gear technical fields, and in particular to a kind of breaker and its transmission device.
Background technique
In breaker, it usually needs convert the up and down motion of mechanism to the horizontal movement of movable contact rod.For example, application
Publication No. is 104465203 A of CN, and a kind of entitled Chinese patent of high-voltage circuitbreaker transmission device discloses a kind of transmission
Device.In the transmission device, the first pull rod wins in succession by first, connecting lever, second wins in succession and converts the second drawing for up and down motion
The horizontal movement of bar (being equivalent to cross-tie).The active force that first pull rod passes to the second pull rod includes vertical component and level
Component needs the second axle sleeve (being equivalent to cross-tie guide frame) to be oriented to the water to guarantee the second pull rod to the second pull rod
Flat movement, still, since the second pull rod is by biggish vertical component, so that between the pilot hole of the second axle sleeve and the second pull rod
Frictional force it is larger, cause the pilot hole of the second axle sleeve and the serious wear of the second pull rod, also reduce transmission efficiency and movement
Reliability.Further, since the length of the second pull rod is longer, heavier-weight, and bear the biggish vertical of the first pull rod transmitting
Component, therefore the horizontal movement in order to guarantee the second pull rod, the length of the pilot hole of the second axle sleeve are also longer, it is ensured that longer
It is higher just to inevitably result in cost of goods manufactured for the machining accuracy of pilot hole.
Summary of the invention
The purpose of the present invention is to provide a kind of transmission device with solve in the prior art cross-tie by biggish perpendicular
Straight component and the technical issues of cause cross-tie to need longer horizontally-guided and serious wear.The present invention also aims to mention
For a kind of breaker.
The technical solution of transmission device in the present invention: a kind of transmission device, including the cross-tie that is connected with moving contact and
It is connected by the transmission of connecting plate and cross-tie to drive what the pivot center of cross-tie side-to-side movement extended along the longitudinal direction to turn
Arm, one end and the connecting lever of connecting plate are hinged and connected, the hinging pin shaft and cross that the other end of connecting plate is extended along the longitudinal direction by axis
It is hinged and connected to pull rod, it is characterised in that: transmission device further includes hinging pin shaft guide part, is provided on hinging pin shaft guide part
With the hinging pin shaft hinging pin shaft guide frame that guiding movement cooperates in the lateral direction.
Hinging pin shaft guide frame is the guide groove that length extends in left-right direction, and the outer peripheral surface of hinging pin shaft, which is equipped with, to be slided
Ring, hinging pin shaft are rotatably assorted with slip ring, and slip ring and guide groove roll and cooperate.
Guide groove includes interval setting along the longitudinal direction and parallel preceding guide groove and rear guide groove, hinging pin shaft include
Leading portion, back segment and the interlude between forward and backward two sections, after slip ring includes the preceding slip ring of the outer peripheral surface set on leading portion and is set to
The rear slip ring of the outer peripheral surface of section, preceding slip ring and rear slip ring are rolled with preceding guide groove and rear guide groove respectively to be cooperated.
The length to connect in the longitudinal direction with preceding guide groove is equipped on hinging pin shaft guide part in the front side of preceding guide groove
Spend the preceding long hole that extends in left-right direction, the rear side on pin shaft guide part in rear guide groove is equipped with rear guide groove in front-rear direction
On the rear long hole that extends in left-right direction of the length that connects.
The outer diameter of leading portion and back segment is less than the outer diameter of interlude, be equipped between leading portion and interlude it is facing forward for it is advancing slip
Ring block cooperate to limit the pin shaft foreground terrace that advancing slip ring moves backward, between back segment and interlude be equipped with backwards for
The pin shaft backstage terrace that the cooperation of slip ring block is moved forward with slip ring after limiting afterwards, is equipped with backwards between preceding long hole and preceding guide groove
For cooperating with preceding slip ring block to limit the foreground terrace that advancing slip ring moves forward, be equipped between rear long hole and rear guide groove
The backstage terrace moved backward for slip ring after being limited with the cooperation of rear slip ring block facing forward.
The technical solution of breaker in the present invention: a kind of breaker, including transmission device, transmission device include and moving contact
Connected cross-tie and it is connected by connecting plate with cross-tie transmission to drive the pivot center edge of cross-tie side-to-side movement
The connecting lever that front-rear direction extends, one end and the connecting lever of connecting plate are hinged and connected, and the other end of connecting plate is prolonged along the longitudinal direction by axis
The hinging pin shaft stretched is hinged and connected with cross-tie, breaker further include for cross-tie guiding movement in the lateral direction
The cross-tie guide frame of cooperation, it is characterised in that: transmission device further includes hinging pin shaft guide part, hinging pin shaft guide part
On be provided with and hinging pin shaft in the lateral direction guiding movement cooperation hinging pin shaft guide frame.
Hinging pin shaft guide frame is the guide groove that length extends in left-right direction, and the outer peripheral surface of hinging pin shaft, which is equipped with, to be slided
Ring, hinging pin shaft are rotatably assorted with slip ring, and slip ring and guide groove roll and cooperate.
Guide groove includes interval setting along the longitudinal direction and parallel preceding guide groove and rear guide groove, hinging pin shaft include
Leading portion, back segment and the interlude between forward and backward two sections, after slip ring includes the preceding slip ring of the outer peripheral surface set on leading portion and is set to
The rear slip ring of the outer peripheral surface of section, preceding slip ring and rear slip ring are rolled with preceding guide groove and rear guide groove respectively to be cooperated.
The length to connect in the longitudinal direction with preceding guide groove is equipped on hinging pin shaft guide part in the front side of preceding guide groove
Spend the preceding long hole that extends in left-right direction, the rear side on pin shaft guide part in rear guide groove is equipped with rear guide groove in front-rear direction
On the rear long hole that extends in left-right direction of the length that connects.
The outer diameter of leading portion and back segment is less than the outer diameter of interlude, be equipped between leading portion and interlude it is facing forward for it is advancing slip
Ring block cooperate to limit the pin shaft foreground terrace that advancing slip ring moves backward, between back segment and interlude be equipped with backwards for
The pin shaft backstage terrace that the cooperation of slip ring block is moved forward with slip ring after limiting afterwards, is equipped with backwards between preceding long hole and preceding guide groove
For cooperating with preceding slip ring block to limit the foreground terrace that advancing slip ring moves forward, be equipped between rear long hole and rear guide groove
The backstage terrace moved backward for slip ring after being limited with the cooperation of rear slip ring block facing forward.
Usefulness of the present invention: for hinging pin shaft by the constraint of hinging pin shaft guide frame, hinging pin shaft only will be along left and right
The active force in direction passes to cross-tie, and the vertical component that cross-tie is not transmitted substantially by connecting lever, this makes cross-tie
Friction is small between guide frame and cross-tie, and the abrasion of cross-tie guide frame and cross-tie is also smaller, has
Help improve transmission efficiency and motion credibility.
Further, hinging pin shaft guide frame is the guide groove that length extends in left-right direction, the periphery of hinging pin shaft
Face is equipped with slip ring, and hinging pin shaft is rotatably assorted with slip ring, and slip ring and guide groove roll and cooperate.Slip ring can be in guide groove freely
Rotation, the friction between slip ring and guide groove is rolling friction, therefore friction is small, this make the abrasion of guide groove also compared with
It is small, help to improve transmission efficiency and motion credibility.
Further, preceding long hole and rear long hole facilitate the equipment adjustment of hinging pin shaft, preceding slip ring and rear slip ring, also facilitate sight
Examine the motion state of preceding slip ring and rear slip ring.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of transmission device in the embodiment of breaker in the present invention；
Fig. 2 is the cross-sectional view of the line A-A along Fig. 1.
In figure: 1, cross-tie；2, drive rod；3, cross-tie guide frame；4, hinging pin shaft；5, preceding guide groove；6,
Preceding slip ring；7, rear slip ring；8, fixed hinge point；9, connecting lever；10, preceding long hole；11, rear guide groove；12, connecting plate；13, swivel pin
Axis guide part；14, rear long hole；15, pin shaft foreground terrace；16, pin shaft backstage terrace；17, foreground terrace；18, backstage terrace.
Specific embodiment
The embodiment of breaker is as illustrated in fig. 1 and 2 in the present invention.Breaker includes transmission device, transmission device include with
The cross-tie 1 and be connected by connecting plate 12 with the transmission of cross-tie 1 to drive 1 side-to-side movement of cross-tie that moving contact is connected
The connecting lever 9 that pivot center extends along the longitudinal direction, one end and the connecting lever 9 of connecting plate 12 are hinged and connected, the other end and cross of connecting plate 12
Be hinged and connected to pull rod 1, transmission device further includes hinging pin shaft guide part 13, be provided on hinging pin shaft guide part 13 with hingedly
The pin shaft hinging pin shaft guide frame that guiding movement cooperates in the lateral direction.Connecting lever 9 is articulated with consolidating in the rack of breaker
Determine hinge joint 8, transmission device further includes the drive rod 2 being hinged and connected with connecting lever 9, the up and down motion of drive rod 2 drive connecting lever 9 around
The rotation of fixed hinge point 8, and then 1 side-to-side movement of cross-tie is driven by connecting plate 12.Breaker further include for transverse direction
The cross-tie guide frame 3 that guiding movement cooperates in the lateral direction of pull rod 1.Hinging pin shaft guide frame is length along left and right
The guide groove that direction extends, the outer peripheral surface of hinging pin shaft 4 are equipped with slip ring, and slip ring and guide groove, which roll, to be cooperated, hinging pin shaft 4 and even
It is rotatably assorted between plate 12, is also rotatably assorted between hinging pin shaft 4 and cross-tie 1, also rotated between slip ring and hinging pin shaft 4
Cooperation, the running clearance between running clearance, hinging pin shaft between hinging pin shaft 4 and connecting plate 12 and cross-tie 1 are respectively less than
Running clearance between slip ring and hinging pin shaft 4, the resistance rotated between slip ring and hinging pin shaft 4 are smaller.Guide groove includes edge
The setting of front-rear direction interval and parallel preceding guide groove 5 and rear guide groove 11, hinging pin shaft 4 include leading portion, back segment and are set to
The outer diameter of interlude between front and rear sections, leading portion and back segment is less than the outer diameter of interlude, and slip ring includes the outer peripheral surface set on leading portion
Preceding slip ring 6 and the outer peripheral surface set on back segment rear slip ring 7, preceding slip ring 6 and rear slip ring 7 are rotatably assorted with hinging pin shaft 4, preceding
Slip ring 6 and rear slip ring 7 are rolled with preceding guide groove 5 and rear guide groove 11 respectively to be cooperated.On hinging pin shaft guide part 13 in it is leading to
The front side of slot 5 is equipped with the preceding long hole 10 that the length to connect in the longitudinal direction with preceding guide groove 5 extends in left-right direction, preceding length
Hole 10 is equipped at intervals with two in the longitudinal direction, is equipped with and rear guiding on hinging pin shaft guide part 13 in the front side of rear guide groove 11
The rear long hole 14 that the length that slot connects in the longitudinal direction extends in left-right direction, rear long hole 14 are spaced set in the longitudinal direction
There are two, the width of preceding long hole 10 and rear long hole 14 is greater than the width at finger to facilitate to hinging pin shaft 4,6 and of preceding slip ring
Slip ring 7 carries out equipment adjustment afterwards, also facilitates the motion state for observing preceding slip ring 6 and rear slip ring 7.It is equipped between leading portion and interlude
The pin shaft foreground terrace 15 moved backward for slip ring 6 before being limited with the cooperation of preceding 6 block of slip ring facing forward, back segment and interlude
Between be equipped with backwards for cooperating the pin shaft backstage terrace 16 moved forward with slip ring 7 after limiting, preceding length with rear 7 block of slip ring
The foreground that the preceding forward movement of slip ring 6 is limited for cooperating with preceding 6 block of slip ring backwards is equipped between hole 10 and preceding guide groove 5
Terrace 17, be equipped between rear long hole 14 and rear guide groove 11 it is facing forward for cooperating with rear 7 block of slip ring with slip ring 7 after limiting to
The backstage terrace 18 moved afterwards, slip ring 6 is deviate from the longitudinal direction before being prevented by pin shaft foreground terrace 15 and foreground terrace 17,
Prevent rear slip ring from deviating from the longitudinal direction by pin shaft backstage terrace 16 and backstage terrace 18.
In the present invention in the other embodiments of breaker, drive rod 2 can be saved, connecting lever 9 is directly driven by driving device
It is rotated around fixed hinge point 8.
In the present invention in the other embodiments of breaker, hinging pin shaft guide frame is led for what length extended in left-right direction
Rail, the circumferential direction of hinging pin shaft are equipped with and the guide rail guide rail mounting groove that guiding movement cooperates in left and right directions.
In the present invention in the other embodiments of breaker, can only it be rotatably assorted or hingedly between hinging pin shaft 4 and connecting plate 12
Rotation stop cooperates between pin shaft 4 and cross-tie 1.
The embodiment of transmission device is identical as the structure of transmission device in the embodiment of breaker in the present invention, no longer herein
It repeats.
Claims (4)
1. a kind of transmission device is connected including the cross-tie being connected with moving contact and by connecting plate with cross-tie transmission to drive
The connecting lever that the pivot center of dynamic cross-tie side-to-side movement extends along the longitudinal direction, one end and the connecting lever of connecting plate are hinged and connected, even
The other end of plate is hinged and connected by the hinging pin shaft that axis extends along the longitudinal direction with cross-tie, it is characterised in that: transmission
Device further includes hinging pin shaft guide part, is provided on hinging pin shaft guide part and hinging pin shaft guiding movement in the lateral direction
The hinging pin shaft guide frame of cooperation；Hinging pin shaft guide frame is the guide groove that length extends in left-right direction, hinging pin shaft
Outer peripheral surface be equipped with slip ring, hinging pin shaft is rotatably assorted with slip ring, and slip ring and guide groove roll cooperation；Guide groove includes along front and back
Direction interval setting and parallel preceding guide groove and rear guide groove, hinging pin shaft include leading portion, back segment and be set to forward and backward two sections
Between interlude, slip ring include set on leading portion outer peripheral surface preceding slip ring and the outer peripheral surface set on back segment rear slip ring, it is advancing slip
Ring and rear slip ring are rolled with preceding guide groove and rear guide groove respectively to be cooperated；It is set on front side of preceding guide groove on hinging pin shaft guide part
There is the preceding long hole that the length to connect in the longitudinal direction with preceding guide groove extends in left-right direction, is led after on pin shaft guide part
The rear long hole extended in left-right direction with the length that rear guide groove connects in the longitudinal direction is equipped with to the rear side of slot.
2. transmission device according to claim 1, it is characterised in that: the outer diameter of leading portion and back segment is less than the outer of interlude
Diameter, be equipped between leading portion and interlude it is facing forward for cooperating with preceding slip ring block to limit the pin shaft that advancing slip ring moves backward before
Step surface is equipped with the pin moved forward for slip ring after limiting with the cooperation of rear slip ring block backwards between back segment and interlude
Axis backstage terrace, be equipped between preceding long hole and preceding guide groove backwards for cooperating with preceding slip ring block with limit it is advancing slip it is circumferential before
Mobile foreground terrace, equipped with facing forward for slip ring after being limited with the cooperation of rear slip ring block between rear long hole and rear guide groove
The backstage terrace moved backward.
3. a kind of breaker, including transmission device, transmission device include the cross-tie being connected with moving contact and by connecting plate with
The connecting lever that cross-tie transmission is connected to drive the pivot center of cross-tie side-to-side movement to extend along the longitudinal direction, the one of connecting plate
End is hinged and connected with connecting lever, and the other end of connecting plate passes through the hinging pin shaft and the hinged phase of cross-tie that axis extends along the longitudinal direction
Even, breaker further include for the cross-tie guide frame with cross-tie guiding movement cooperation in the lateral direction, it is special
Sign is: transmission device further includes hinging pin shaft guide part, is provided on hinging pin shaft guide part and hinging pin shaft is in right and left
It is upwardly directed the hinging pin shaft guide frame of mobile cooperation；Hinging pin shaft guide frame is the guiding that length extends in left-right direction
The outer peripheral surface of slot, hinging pin shaft is equipped with slip ring, and hinging pin shaft is rotatably assorted with slip ring, and slip ring and guide groove roll and cooperate；Guiding
Slot include along the longitudinal direction interval setting and parallel preceding guide groove and rear guide groove, hinging pin shaft include leading portion, back segment and
Interlude between forward and backward two sections, slip ring include the preceding slip ring of the outer peripheral surface set on leading portion and the outer peripheral surface set on back segment
Rear slip ring, preceding slip ring and rear slip ring are rolled with preceding guide groove and rear guide groove respectively to be cooperated；In preceding on hinging pin shaft guide part
The front side of guide groove is equipped with the preceding long hole extended in left-right direction with the length that preceding guide groove connects in the longitudinal direction, pin shaft
The length to connect in the longitudinal direction with rear guide groove is equipped in the rear side of rear guide groove on guide part to extend in left-right direction
Rear long hole.
4. breaker according to claim 3, it is characterised in that: the outer diameter of leading portion and back segment is less than the outer diameter of interlude,
Facing forward be used for the cooperation of preceding slip ring block to limit the pin shaft foreground that advancing slip ring moves backward is equipped between leading portion and interlude
Terrace is equipped with the pin shaft moved forward for slip ring after limiting with the cooperation of rear slip ring block backwards between back segment and interlude
Backstage terrace, equipped with backwards for cooperating with preceding slip ring block to limit advancing slip circumferential Forward between preceding long hole and preceding guide groove
Dynamic foreground terrace, be equipped between rear long hole and rear guide groove it is facing forward for cooperating with rear slip ring block with slip ring after limiting to
The backstage terrace moved afterwards.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610129453.3A CN105655210B (en) | 2016-03-08 | 2016-03-08 | A kind of breaker and its transmission device |
| PCT/CN2016/107248 WO2017152662A1 (en) | 2016-03-08 | 2016-11-25 | Circuit breaker and actuator thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610129453.3A CN105655210B (en) | 2016-03-08 | 2016-03-08 | A kind of breaker and its transmission device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105655210A CN105655210A (en) | 2016-06-08 |
| CN105655210B true CN105655210B (en) | 2019-02-12 |
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ID=56493153
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610129453.3A Active CN105655210B (en) | 2016-03-08 | 2016-03-08 | A kind of breaker and its transmission device |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN105655210B (en) |
| WO (1) | WO2017152662A1 (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105655210B (en) * | 2016-03-08 | 2019-02-12 | 平高集团有限公司 | A kind of breaker and its transmission device |
| CN106206110B (en) * | 2016-09-26 | 2018-02-16 | 徐州新电高科电气有限公司 | A kind of circuit-breaker switching on-off maintaining body |
| CN108987178A (en) * | 2017-06-02 | 2018-12-11 | 河南华盛隆源电气有限公司 | A kind of transmission device and the breaker using the transmission device |
| CN112093057B (en) * | 2020-10-13 | 2021-07-20 | 成都康拓兴业科技有限责任公司 | Cargo locking and unlocking mechanism for cargo delivery of unmanned helicopter |
| CN114743827A (en) * | 2021-01-07 | 2022-07-12 | 天津平高智能电气有限公司 | Spring mounting tool |
| CN114156120B (en) * | 2021-10-21 | 2023-09-29 | 河南平高通用电气有限公司 | Circuit breaker |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN205582848U (en) * | 2016-03-08 | 2016-09-14 | 平高集团有限公司 | Circuit breaker and transmission thereof |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4998081A (en) * | 1989-05-18 | 1991-03-05 | Siemens Energy & Automation, Inc. | Power interrupter with force-sensitive contact latch |
| CN201054332Y (en) * | 2007-07-20 | 2008-04-30 | 西安电力机械制造公司 | Output axis guiding device of operation machine for high-voltage breaker |
| JP2010232032A (en) * | 2009-03-27 | 2010-10-14 | Japan Ae Power Systems Corp | Operation mechanism for gas-blast circuit breaker |
| CN101976624A (en) * | 2010-09-19 | 2011-02-16 | 郑文秀 | Circuit breaker for ground burying |
| JP5865670B2 (en) * | 2011-10-24 | 2016-02-17 | 株式会社東芝 | Gas circuit breaker |
| CN104465203B (en) * | 2014-12-04 | 2016-12-07 | 中国西电电气股份有限公司 | A kind of primary cut-out actuating device |
| CN204348602U (en) * | 2015-01-08 | 2015-05-20 | 珠海许继电气有限公司 | A kind of novel breaker drive mechanism |
| CN105655210B (en) * | 2016-03-08 | 2019-02-12 | 平高集团有限公司 | A kind of breaker and its transmission device |
-
2016
- 2016-03-08 CN CN201610129453.3A patent/CN105655210B/en active Active
- 2016-11-25 WO PCT/CN2016/107248 patent/WO2017152662A1/en active Application Filing
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN205582848U (en) * | 2016-03-08 | 2016-09-14 | 平高集团有限公司 | Circuit breaker and transmission thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2017152662A1 (en) | 2017-09-14 |
| CN105655210A (en) | 2016-06-08 |
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Effective date of registration: 20180201 Address after: South East of Pingdingshan city in Henan province 467001 No. 22 Applicant after: Pinggao Group Co., Ltd. Applicant after: State Grid Corporation of China Applicant after: MAINTENANCE COMPANY, STATE GRID SHANDONG ELECTRIC POWER CO., LTD. Address before: South East of Pingdingshan city in Henan province 467001 No. 22 Applicant before: Pinggao Group Co., Ltd. Applicant before: State Grid Corporation of China |
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