CN112928690A - Ground potential pin feeding device for suspension clamp of linear tower - Google Patents

Ground potential pin feeding device for suspension clamp of linear tower Download PDF

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Publication number
CN112928690A
CN112928690A CN202110154038.4A CN202110154038A CN112928690A CN 112928690 A CN112928690 A CN 112928690A CN 202110154038 A CN202110154038 A CN 202110154038A CN 112928690 A CN112928690 A CN 112928690A
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CN
China
Prior art keywords
pin
outer sleeve
ground potential
cotter
feeding device
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Granted
Application number
CN202110154038.4A
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Chinese (zh)
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CN112928690B (en
Inventor
凌志刚
温卫东
郭玉淼
郝永刚
张鹏
郭世伟
刘建新
王俊
梁宏伟
李鹏
张春林
李瑞刚
刘洋
邬旭鹏
刘斌权
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Xuejiawan Power Supply Branch Of Inner Mongolia Electric Power Group Co ltd
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Xuejiawan Power Supply Bureau Inner Mongolia Electric Power Group Co ltd
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Priority to CN202110154038.4A priority Critical patent/CN112928690B/en
Publication of CN112928690A publication Critical patent/CN112928690A/en
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    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02GINSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
    • H02G1/00Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines
    • H02G1/02Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines for overhead lines or cables

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Abstract

The invention provides a ground potential pin feeding device for a suspension clamp of a linear tower, and relates to the technical field of electric power engineering. The opening angle of the invention can be changed in a larger range, and the defect that the pin is difficult to protect due to the fact that the opening angle of the complementary opening pin is too small when the ground potential complementary suspension clamp opening pin is adopted in the prior art to work is overcome.

Description

Ground potential pin feeding device for suspension clamp of linear tower
Technical Field
The invention relates to the technical field of electric power engineering, in particular to a ground potential pin feeding device for a suspension clamp of a linear tower.
Background
The split pin is one of pins, is a commonly used hardware fitting on a high-voltage transmission line, is widely applied to bolts and penetrating nails on various wire clamps, and has a round structure at the head part and two split legs with one long leg and one short leg at the tail end. When the nut is used, the nut penetrates into a radial hole of a bolt, a through-bolt and the like, then the end with the long and short opening feet is separated by a tool to form a certain angle for fixing the nut matched with the bolt or preventing the pin from falling off, and the nut or the pin is prevented from falling off.
However, in the long-term operation process of the power transmission line equipment, the cotter pin on the power line is easily corroded due to wind and sunshine, the strength is reduced after corrosion, and the cotter pin is easily broken in the operation process, so that the faults such as disconnection and the like are caused. Especially, defects such as missing and the like of the split pin are often found due to reasons such as breeze vibration or construction leaving and the like in the operation of the power transmission line, the pin is specified to be broken, invalid, missing and deformed in a defect library of primary power transmission equipment, the pin is classified as an emergency defect, and the split pin needs to be supplemented in time after finding, so that the hidden trouble of disconnection is eliminated.
The electrified split pin is repaired as an important electrified maintenance work, and the opening angle of the electrified split pin is not too small according to the inspection and acceptance standard requirements of the power transmission line. And the currently common live-line maintenance mode, namely, the ground potential is adopted to supplement the opening pin of the suspension clamp, so that the supplemented pin cannot be opened to a required angle, and the pin is difficult to really play a role in protection.
Disclosure of Invention
In view of the above, the invention aims to provide a ground potential pin feeding device for a suspension clamp of a linear tower, so as to solve the technical problem that in the prior art, when ground potential is adopted to supplement an opening pin of the suspension clamp, the opening angle of the supplement opening pin is too small, so that the pin is difficult to protect.
In order to achieve the purpose, the invention provides a ground potential pin feeding device for a suspension clamp of a linear tower, which comprises an insulating operating rod and a pin supplementing device matched with the end part of the insulating operating rod, wherein the pin supplementing device comprises a cotter pin positioning mechanism for positioning cotter pins and a cotter pin posture adjusting mechanism rotationally connected with the cotter pin positioning mechanism, and the cotter pin positioning mechanism is matched with the cotter pin posture adjusting mechanism to adjust the opening angles of the cotter pins.
According to a preferred embodiment, the opening angle of the cotter pin is greater than 60 °.
According to a preferred embodiment, the cotter pin locating mechanism comprises an inner sleeve and an outer sleeve sleeved with the end of the inner sleeve, the inner sleeve is connected with the outer sleeve in a sliding mode, and a fixing pin piece is arranged on one side, opposite to the outer sleeve, of the end of the inner sleeve.
According to a preferred embodiment, the securing element is provided in the form of a three-jaw.
According to a preferred embodiment, the inner sleeve is provided as a conical tube, the small radius end of which is remote from the outer sleeve.
According to a preferred embodiment, the cotter posture adjusting mechanism comprises a connecting track and a cotter detachably mounted on the connecting track, the connecting track is fixedly connected with the outer sleeve through a connecting column, the outer sleeve rotates relative to the inner sleeve to drive the connecting track to rotate, and the outer sleeve slides forward relative to the inner sleeve to drive the cotter to prop open long and short legs of the cotter.
According to a preferred embodiment, an L-shaped slide hole is formed in a side wall of the outer sleeve, a short end of the L-shaped slide hole is arranged along a radial direction of the outer sleeve, a long end of the L-shaped slide hole is arranged along an axial direction of the outer sleeve, a pin is arranged on the inner sleeve, the pin slides at the short end of the L-shaped slide hole when the outer sleeve rotates relative to the inner sleeve, and the pin slides at the long end of the L-shaped slide hole when the outer sleeve slides forwards relative to the inner sleeve.
According to a preferred embodiment, the connecting track is provided in the form of an angle, the connecting stud being located at one of the ends of the connecting track and the opening member being located at the other end of the connecting track.
According to a preferred embodiment, the opening pin member is connected with the connecting track bolt, and the tail end of the opening pin member is arranged in a circular arc shape and is provided with an opening groove inwards.
According to a preferred embodiment, the locating end of the cotter pin locating mechanism is provided with a mirror.
The ground potential pin feeding device for the suspension clamp of the linear tower provided by the invention has the following technical effects:
the pin feeding device comprises an insulating operating rod and a pin feeding device matched with the end part of the insulating operating rod, and is different from the traditional pin feeding device in that the pin feeding device comprises a split pin positioning mechanism and a split pin posture adjusting mechanism, wherein the split pin positioning mechanism can position a split pin in a radial hole of a bolt, a through pin and the like, the split pin posture adjusting mechanism is rotatably connected with the split pin positioning mechanism and is matched with the split pin positioning mechanism to adjust the opening angle of the split pin, the opening angle can be changed in a large range, and the defect that the pin is difficult to protect due to the fact that the opening angle of the split pin is too small when the ground potential is adopted to feed the split pin of the suspension clamp in the prior art is overcome.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings 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 the drawings without creative efforts.
Fig. 1 is a schematic diagram of a ground potential pin supply apparatus according to an embodiment of the present invention;
fig. 2 is a schematic diagram of the ground potential pin supply of fig. 1 without the insulated operating rod;
fig. 3 is a schematic view of the structure of the pin securing member of the ground potential pin feeding apparatus of fig. 2;
fig. 4 is a cross-sectional view of the short end of the L-shaped slide hole in the outer sleeve of the ground potential pin assembly of fig. 2;
fig. 5 is a side view of the end of the overhead member of the ground potential feed pin arrangement of fig. 2.
Wherein, fig. 1-5:
1. an insulating operating rod;
2. a pin supplementing device; 21. a cotter pin locating mechanism; 211. an inner sleeve; 211a, a pin; 211b, a mirror; 212. an outer sleeve; 212a, an L-shaped slide hole; 212b, a quincunx connector; 213. a dowel piece; 22. a cotter pin attitude adjusting mechanism; 221. connecting the rails; 222. an opening member; 222a, an open slot; 223. a bolt; 23. connecting columns.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be described in detail below. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be derived by a person skilled in the art from the examples given herein without any inventive step, are within the scope of the present invention.
In the description of the present invention, it is to be noted that, unless otherwise specified, "a plurality" means two or more; the terms "upper", "lower", "left", "right", "inner", "outer", "front", "rear", "head", "tail", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only for convenience in describing and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, should not be construed as limiting the invention. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present invention can be understood as appropriate to those of ordinary skill in the art.
As described in the background art, during the operation of the ground potential supplementary mounting of the suspension clamp opening pin, which is a common live-line maintenance mode in the prior art, the supplementary pin cannot be opened to a required angle, so that the pin is difficult to really play a role in protection.
Based on the above, the invention provides a pin feeding device, which is the same as the traditional pin feeding device and comprises an insulating operating rod 1 and a pin supplementing device 2 matched with the end part of the insulating operating rod 1, and the difference is that the pin supplementing device 2 comprises a split pin positioning mechanism 21 and a split pin posture adjusting mechanism 22, wherein the split pin positioning mechanism 21 can position the split pin in a radial hole of a bolt, a through-bolt and the like, the split pin posture adjusting mechanism 22 is rotatably connected with the split pin positioning mechanism 21 and is matched with the split pin positioning mechanism 21 to adjust the opening angle of the split pin, the opening angle can be changed in a larger range, and the defect that the pin 211a is difficult to play a protection role due to the fact that the split pin 211a is too small in the process of supplementing and installing the split pin 211a by adopting the ground potential in the prior art is overcome.
Specifically, as shown in fig. 1 to 5, the ground potential pin feeding device for the suspension clamp of the linear tower provided by the embodiment of the invention comprises an insulating operating rod 1 and a pin compensator 2 matched with the end of the insulating operating rod 1, wherein the pin compensator 2 is provided with a quincunx connecting piece 212b, the quincunx connecting piece 212b is provided with a notch recessed inwards from the end, the surface of the notch is provided with a protrusion, the insulating operating rod 1 is provided with a groove corresponding to the protrusion, and the protrusion on the quincunx connecting piece 212b is inserted into the groove on the insulating operating rod 1 during connection, so that the connection between the insulating operating rod 1 and the pin compensator 2 is realized.
The pin supplementing device 2 comprises a cotter pin positioning mechanism 21 and a cotter pin posture adjusting mechanism 22, the cotter pin positioning mechanism 21 can be used for positioning the cotter pin, namely, the cotter pin can be positioned in radial holes of bolts, through nails and the like, the cotter pin posture adjusting mechanism 22 is used for adjusting the posture of the cotter pin, specifically, the cotter pin opening angle is adjusted, the cotter pin posture adjusting mechanism 22 is connected with the cotter pin positioning mechanism 21 in a rotating mode, the cotter pin opening angle is adjusted in a mutually matched mode, the opening angle is larger than 60 degrees, and the defect that the opening angle of a traditional pin feeding device cannot reach 60 degrees easily is overcome.
Further, as shown in fig. 1 and 2, the cotter pin locating mechanism 21 includes an inner sleeve 211 and an outer sleeve 212, the inner sleeve 211 is made of stainless steel material, the inner sleeve 211 is located at an end of the outer sleeve 212, and the inner sleeve 211 is slidably connected with the outer sleeve 212, i.e. relative movement can be generated between the inner sleeve 211 and the outer sleeve 212, a fixing pin 213 is arranged at an end of the inner sleeve 211 opposite to the outer sleeve 212, the fixing pin 213 can locate the cotter pin in a radial hole of a bolt, a through-pin, etc., and a quincunx connector 212b is mounted at an end of the outer sleeve 212 opposite to the inner sleeve 211.
As shown in fig. 3, the pin fixing member 213 is preferably of a three-jaw type, made of an elastic material, having high hardness and high impact toughness, and the angle between the three jaws of the three-jaw type pin fixing member 213 can be changed, so as to firmly clamp the cotter pin and ensure that the cotter pin does not rotate freely.
It should be noted that the pin fixing member 213 of the present invention is not limited to the three-jaw type, but may be a multi-jaw type, and is not limited to the jaw type structure, and it is within the scope of the present invention as long as the purpose of firmly locking the cotter pin can be achieved.
During the pin feeding and pin snapping process, relative movement is generated between the inner sleeve 211 and the outer sleeve 212, and in order to ensure flexible operation, the friction between the inner sleeve 211 and the outer sleeve 212 should be as small as possible. As shown in fig. 2, the inner sleeve 211 is preferably a tapered tube with a small radius end away from the outer sleeve 212 and the pin fastener 213 mounted at the small radius end, and the tapered tube is more preferably conical with a lower overall friction of the conical inner sleeve 211.
Furthermore, as shown in fig. 2, the cotter pin posture adjustment mechanism 22 includes a connecting rail 221 and an overhead member 222, the overhead member 222 is detachably mounted on the connecting rail 221, and the overhead member 222 is connected with the connecting rail 221 by a bolt 223.
As shown in fig. 2, the connecting track 221 and the outer sleeve 212 are fixedly connected through the connecting rod 23, where the fixed connection is welding, that is, two ends of the connecting rod 23 are welded to the connecting track 221 and the outer sleeve 212 at the same time, so that the outer sleeve 212 rotates relative to the inner sleeve 211 to drive the connecting track 221 to rotate, and the outer sleeve 212 slides forward relative to the inner sleeve 211 to drive the cotter 222 to open the long and short legs of the cotter.
Specifically, the rotation and sliding between the outer sleeve 212 and the inner sleeve 211 are achieved by: as shown in fig. 2 and 4, an L-shaped slide hole 212a is formed in a side wall of the outer sleeve 212, a short end of the L-shaped slide hole 212a is arranged along a radial direction of the outer sleeve 212, a long end of the L-shaped slide hole 212a is arranged along an axial direction of the outer sleeve 212, a pin 211a is fixed on the inner sleeve 211, the pin 211a vertically penetrates through the L-shaped slide hole 212a and can slide in the L-shaped slide hole 212a, when the outer sleeve 212 rotates relative to the inner sleeve 211, the pin 211a slides at the short end of the L-shaped slide hole 212a, and when the outer sleeve 212 slides forward relative to the inner sleeve 211, the pin 211a slides at the long end of the L-shaped slide hole 212 a.
As shown in fig. 2, the connecting rail 221 is provided in an angular shape, the connecting column 23 is located at one end of the connecting rail 221, and the cotter 222 is located at the other end of the connecting rail 221.
It should be noted that the connecting track 221 is not limited to an angle shape, and may have other shapes, as long as the purpose of connecting the outer sleeve 212 and the cotter 222 and rotating together with the outer sleeve 212 can be achieved, which is within the protection scope of the present invention, and the present invention does not limit the specific shape of the connecting track 221.
In addition, as shown in fig. 4, which is a cross-sectional view of a short end of an L-shaped sliding hole 212a on the outer sleeve 212, the L-shaped sliding hole 212a is symmetrically disposed on the outer sleeve 212, a starting position of the pin 211a is located at a terminal of the short end of the L-shaped sliding hole 212a and is far away from a long end of the L-shaped sliding hole 212a, a length of the short end of the L-shaped sliding hole 212a is limited by a 90-degree rotation of the connecting track 221, the connecting track 221 drives the cotter 222 to rotate to the cotter, thereby expanding the cotter of the cotter, mainly pushing the long leg and increasing an opening angle of the cotter.
Furthermore, as shown in fig. 5, in order to align the pin feeding device with the cotter pin accurately, so that the cotter pin 211a can be opened smoothly, and the opening angle is more than or equal to 60 ° to prevent the cotter pin from being withdrawn and disabled, the end of the cotter piece 222 is configured to be arc-shaped, and the opening slot 222a is formed inwards, so that the structure has high bearing strength and strong operability.
In an embodiment of the present invention, since the mounting position of the cotter pin is generally located on the back of the suspension clamp, and it is difficult for the operator to observe the mounting condition of the cotter pin, the positioning end of the cotter pin positioning mechanism 21 is provided with a reflective mirror 211b, as shown in fig. 2, the mounting condition of the cotter pin can be observed by the reflective mirror 211b at a proper time.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.

Claims (10)

1. The utility model provides a straight line shaft tower suspension clamp ground potential is for round pin device, including insulating bar and with insulating bar's tip complex benefit round pin ware, its characterized in that, benefit round pin ware including be used for cotter pin positioning mechanism for cotter pin location and with cotter pin gesture guiding mechanism of cotter pin positioning mechanism swivelling joint, cotter pin positioning mechanism with cotter pin gesture guiding mechanism cooperation adjustment the opening angle of cotter pin.
2. The ground potential pin feeding device for the suspension clamp of the linear tower as claimed in claim 1, wherein the opening angle of the cotter pin is greater than 60 °.
3. The ground potential pin feeding device for the suspension clamp of the linear tower as claimed in claim 2, wherein the cotter pin positioning mechanism comprises an inner sleeve and an outer sleeve sleeved with the end of the inner sleeve, the inner sleeve is slidably connected with the outer sleeve, and a pin fixing piece is arranged on the side, opposite to the outer sleeve, of the end of the inner sleeve.
4. The ground potential pin feeding device for the suspension clamp of the linear tower as claimed in claim 3, wherein the pin fixing piece is arranged in a three-jaw type.
5. The ground potential pin feeding device for the suspension clamp of the linear tower as claimed in claim 3, wherein the inner sleeve is provided as a conical tube, and the small radius end of the conical tube is far away from the outer sleeve.
6. The ground potential pin feeding device for the suspension clamp of the linear tower as claimed in claim 3, wherein the attitude adjusting mechanism for the cotter pin comprises a connecting rail and a cotter pin member detachably mounted on the connecting rail, the connecting rail is fixedly connected with the outer sleeve through a connecting column, the outer sleeve rotates relative to the inner sleeve to drive the connecting rail to rotate, and the outer sleeve slides forward relative to the inner sleeve to drive the cotter pin member to prop open the long and short legs of the cotter pin.
7. The ground potential pin feeding device for the suspension clamp of the linear tower as claimed in claim 6, wherein an L-shaped slide hole is formed in a side wall of the outer sleeve, a short end of the L-shaped slide hole is arranged along a radial direction of the outer sleeve, a long end of the L-shaped slide hole is arranged along an axial direction of the outer sleeve, a pin is arranged on the inner sleeve, the pin slides at the short end of the L-shaped slide hole when the outer sleeve rotates relative to the inner sleeve, and the pin slides at the long end of the L-shaped slide hole when the outer sleeve slides forwards relative to the inner sleeve.
8. The ground potential pin feeding device for the suspension clamp of the linear tower as claimed in claim 6, wherein the connecting rail is provided in an angle shape, the connecting column is located at one end of the connecting rail, and the pin opening member is located at the other end of the connecting rail.
9. The ground potential pin feeding device for the suspension clamp of the linear tower as claimed in claim 8, wherein the pin opening member is connected with the connecting track through a bolt, the tail end of the pin opening member is in a circular arc shape, and an opening groove is formed inwards.
10. The ground potential pin feeding device for the suspension clamp of the linear tower as claimed in any one of claims 1 to 9, wherein a positioning end of the cotter pin positioning mechanism is provided with a reflector.
CN202110154038.4A 2021-02-04 2021-02-04 Ground potential pin feeding device for suspension clamp of linear tower Active CN112928690B (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114784700A (en) * 2022-04-13 2022-07-22 国网安徽省电力有限公司宿州供电公司 Electrified installation device of suspension clamp pin based on photoelectric sensor

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH10156748A (en) * 1996-11-26 1998-06-16 Nishi Nippon Electric Wire & Cable Co Ltd Manipulator-operating cotter pin fitting tool
JP2008042990A (en) * 2006-08-02 2008-02-21 Chugoku Electric Power Co Inc:The Winding bind attachment/detachment tool
CN102931611A (en) * 2012-10-19 2013-02-13 沧州供电公司 Tool of replenishing cotter pin in transmission line in electrifying manner
CN103515857A (en) * 2013-06-27 2014-01-15 国家电网公司 Electrification device for assembling and disassembling split pin
CN104343791A (en) * 2013-07-30 2015-02-11 张振坤 Barb backstop split pin
CN104638560A (en) * 2013-11-08 2015-05-20 国家电网公司 Tool for fixing cotter pin in case of live transmission line
CN204858404U (en) * 2015-06-29 2015-12-09 国家电网公司 Transmission line electrified V -arrangement insulator chain that changes give round pin ware
CN107492834A (en) * 2017-09-19 2017-12-19 国家电网公司 Change the instrument of transmission line of electricity split pin
CN206789983U (en) * 2017-06-21 2017-12-22 国网浙江省电力公司杭州供电公司 A kind of expander applied to R type locking pins
CN110948448A (en) * 2019-12-27 2020-04-03 国网山东省电力公司威海供电公司 Opening pin installation device

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH10156748A (en) * 1996-11-26 1998-06-16 Nishi Nippon Electric Wire & Cable Co Ltd Manipulator-operating cotter pin fitting tool
JP2008042990A (en) * 2006-08-02 2008-02-21 Chugoku Electric Power Co Inc:The Winding bind attachment/detachment tool
CN102931611A (en) * 2012-10-19 2013-02-13 沧州供电公司 Tool of replenishing cotter pin in transmission line in electrifying manner
CN103515857A (en) * 2013-06-27 2014-01-15 国家电网公司 Electrification device for assembling and disassembling split pin
CN104343791A (en) * 2013-07-30 2015-02-11 张振坤 Barb backstop split pin
CN104638560A (en) * 2013-11-08 2015-05-20 国家电网公司 Tool for fixing cotter pin in case of live transmission line
CN204858404U (en) * 2015-06-29 2015-12-09 国家电网公司 Transmission line electrified V -arrangement insulator chain that changes give round pin ware
CN206789983U (en) * 2017-06-21 2017-12-22 国网浙江省电力公司杭州供电公司 A kind of expander applied to R type locking pins
CN107492834A (en) * 2017-09-19 2017-12-19 国家电网公司 Change the instrument of transmission line of electricity split pin
CN110948448A (en) * 2019-12-27 2020-04-03 国网山东省电力公司威海供电公司 Opening pin installation device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114784700A (en) * 2022-04-13 2022-07-22 国网安徽省电力有限公司宿州供电公司 Electrified installation device of suspension clamp pin based on photoelectric sensor
CN114784700B (en) * 2022-04-13 2023-08-04 国网安徽省电力有限公司宿州供电公司 Suspension clamp pin electrified installation device based on photoelectric sensor

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Inventor after: Ling Zhigang

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Inventor before: Guo Yumiao

Inventor before: Hao Yonggang

Inventor before: Zhang Peng

Inventor before: Guo Shiwei

Inventor before: Liu Jianxin

Inventor before: Wang Jun

Inventor before: Liang Hongwei

CP01 Change in the name or title of a patent holder
CP01 Change in the name or title of a patent holder

Address after: 017000 municipal East District, Dalu New District, Zhungeer banner, Ordos City, Inner Mongolia Autonomous Region

Patentee after: Xuejiawan Power Supply Branch of Inner Mongolia electric power (Group) Co.,Ltd.

Address before: 017000 municipal East District, Dalu New District, Zhungeer banner, Ordos City, Inner Mongolia Autonomous Region

Patentee before: XUEJIAWAN POWER SUPPLY BUREAU, INNER MONGOLIA ELECTRIC POWER (GROUP) CO.,LTD.