CN108110679B - Special mounting tool for equalizing ring - Google Patents
Special mounting tool for equalizing ring Download PDFInfo
- Publication number
- CN108110679B CN108110679B CN201711426377.3A CN201711426377A CN108110679B CN 108110679 B CN108110679 B CN 108110679B CN 201711426377 A CN201711426377 A CN 201711426377A CN 108110679 B CN108110679 B CN 108110679B
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- ring
- plate
- rod
- positioning
- fixed
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G1/00—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines
- H02G1/02—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines for overhead lines or cables
- H02G1/04—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines for overhead lines or cables for mounting or stretching
Abstract
The invention discloses a special mounting tool for an equalizing ring, which comprises a rear support body, a front support body and a nut tightening device; the rear support body comprises a fixing part and a clamping part; the fixing part comprises a flat plate, a back plate fixedly connected with the flat plate, bolt fixing sleeves symmetrically fixed on the back plate, a positioning arc plate fixed on the flat plate, a round sleeve fixed on the flat plate, a connector and a clamping device, wherein the connector and the clamping device are arranged in the round sleeve; the connector comprises a connecting plate, a long groove formed in the connecting plate, a screw rod fixed at one end of the connecting plate, a nut screwed on the screw rod and a safety rod fixed on the connecting plate; the screw rod passes through the round sleeve; the clamping device comprises a connecting rod hinged with the flat plate, an upper positioning hook hinged with the connecting rod, an adjusting screw in threaded connection with the upper positioning hook, an upper adjusting spring sleeved on the adjusting screw, a cross rod rotationally connected with the flat plate, lower positioning hooks symmetrically fixed at two ends of the cross rod and lower adjusting springs symmetrically sleeved on the cross rod.
Description
Technical Field
The invention relates to the field of electric power fittings, in particular to a special installation tool for an equalizing ring.
Background
The equalizing ring is mainly used for equalizing voltage, is suitable for alternating current in voltage form, can uniformly distribute high voltage around an object, ensures that potential difference does not exist between annular parts, and achieves the equalizing effect. When the height exceeds the radius of the rolling ball in the building design (30 m, 45 m and 60 m), a equalizing ring is arranged every 6 m. In design, the equalizing ring can be welded into a closed ring by using two main ribs in the ring beam, and the closed ring is required to be connected with all down wires. An equalizing ring is required to be arranged every 6 meters, and the purpose of the equalizing ring is to facilitate the connection of the upper and lower metal doors and windows with the height of 6 meters with the equalizing ring.
In the transmission line, the equalizing ring is mainly used for equalizing stray capacitance to ground, so that voltage distribution is uniform, and local breakdown and damage are avoided.
The power transmission line runs in the field environment for a long time, is influenced by natural environments such as wind, frost, rain and snow, and the grading ring at the lower end of the insulator string is easy to damage and fall off, so that the electric field distribution near the insulator is greatly influenced, the voltage distribution is easy to distort, the safe running of the high-voltage power transmission line is seriously threatened, and the situation needs to be treated in time. When the equalizing ring is damaged, falls off and the like, the power-off maintenance is needed. However, because no special maintenance tool is provided, the existing screwdriver, safety rope and spanner can be used, the use is inconvenient, the replacement time is long, and particularly, the maintenance is required to be carried out in a power failure, so that huge loss is brought to an electric company.
Disclosure of Invention
The invention aims to provide a special installation tool for an equalizing ring, which is convenient to use.
The invention adopts the following technical scheme:
the special mounting tool for the equalizing ring comprises a rear support body, a front support body and a nut tightening device;
the rear support body comprises a fixing part and a clamping part;
the fixing part comprises a flat plate, a back plate fixedly connected with the flat plate, bolt fixing sleeves symmetrically fixed on the back plate, a positioning arc plate fixed on the flat plate, a round sleeve fixed on the flat plate, a connector and a clamping device, wherein the connector and the clamping device are arranged in the round sleeve;
the bolt fixing sleeve comprises a fixing sleeve arranged on the backboard, a fixing bolt in threaded connection with the fixing sleeve, a fixing round nut inserted into the fixing sleeve and an inner hexagonal hole formed at one end of the fixing round nut;
the axis of the fixing bolt is perpendicular to the axis of the fixing sleeve;
the connector comprises a connecting plate, a long groove formed in the connecting plate, a screw rod fixed at one end of the connecting plate, a nut screwed on the screw rod and a safety rod fixed on the connecting plate; the screw rod passes through the round sleeve;
the clamping device comprises a connecting rod hinged with the flat plate, an upper positioning hook hinged with the connecting rod, an adjusting screw rod in threaded connection with the upper positioning hook, an upper adjusting spring sleeved on the adjusting screw rod, a cross rod rotationally connected with the flat plate, lower positioning hooks symmetrically fixed at two ends of the cross rod and lower adjusting springs symmetrically sleeved on the cross rod;
one end of the upper adjusting spring is contacted with the upper positioning hook, and the other end of the upper adjusting spring is contacted with the connecting rod; one end of the lower adjusting spring is fixedly connected with the lower positioning hook, and the other end of the lower adjusting spring is fixedly connected with the flat plate;
as a further solution: the front support body comprises a front support body, a front support rod in sliding connection with the front support body, a positioning ring fixed at one end of the front support rod, a connecting plate arranged at the other end of the front support rod, a connecting groove formed in the connecting plate, connecting vertical plates symmetrically fixed on the front support body, a front hook in rotary connection with the connecting vertical plates, a front positioning arc plate fixed on the connecting vertical plates and an auxiliary positioning arc plate fixed on the front positioning arc plate;
the front hook is provided with a groove; a part of the positioning ring is positioned in a groove on the front hook;
a positioning block is fixed on the outer wall of the front support body; a positioning groove is formed in the connecting plate; a portion of the locating block is positioned within the slot.
As a further solution: the nut tightening device comprises a body, a groove A formed in the body and an inner hexagonal hole A formed in the body.
As a further solution: the body is symmetrically provided with positioning screws; the body is sleeved with a clamping ring; the axis of the positioning screw is perpendicular to the axis of the inner hexagonal hole A;
the snap ring passes through the groove of the head of the positioning screw.
The invention has the following positive effects:
the invention can realize the charged replacement of the equalizing ring. When the equalizing ring is replaced, a rear support body of a worker is fixed on the insulating rod, then half of the equalizing ring is fixed on the rear support body, and then the rear support body is pushed to the installation position through the insulating rod; the other staff volume front support body is fixed on the insulating rod, the other half of the equalizing ring is fixed on the front support body, the other half of the equalizing ring is pushed to the installation position through the insulating rod, the equalizing rings of the two parts are combined into a whole, and the insulating rod is combined with rotation, so that the front support body is separated from the equalizing ring; and finally, placing the nut into the inner hexagonal hole A on the nut tightening device, fixing the nut tightening device on the insulating rod, and finally, screwing the nut on the screw rod on the equalizing ring to finish the installation. In the process, the staff installs through the insulator spindle, need not to carry out the outage, can avoid the loss that the power failure brought.
The invention has small volume and convenient carrying, can be directly put into a tool bag, not only can reduce the load of staff, but also can not influence the climbing process in the process of the creeper tower.
The invention can be directly arranged on the insulating rod, workers do not need to tie the safety rope on the waist as before in the installation process, climb to the vicinity of the installation position of the equalizing ring for installation, but can directly replace the equalizing ring by standing on the cross arm of the electric tower, and the safety is greatly improved.
Drawings
FIG. 1 is a schematic view of the structure of a rear carrier;
FIG. 2 is a three-dimensional view of the aft-mount;
FIG. 3 is a front view of the front tray;
FIG. 4 is a three-dimensional view of a front carrier;
FIG. 5 is a schematic view of the structure of the nut tightening device;
wherein: the device comprises a flat plate 11, a back plate 12, a positioning arc plate 13, a round sleeve 14, a fixed sleeve 21, a fixed bolt 22, a fixed round nut 23, a hexagonal hole 24, a connecting plate 31, a long groove 32, a screw 33, a nut 34, a safety rod 35, a connecting rod 41, an upper positioning hook 42, an adjusting screw 43, an upper adjusting spring 44, a cross rod 45, a lower positioning hook 46, a lower adjusting spring 47, a front supporting body 51, a front supporting rod 52, a positioning ring 53, a connecting plate 54, a connecting groove 55, a connecting vertical plate 56, a front hook 57, a front positioning arc plate 58, an auxiliary positioning arc plate 59, a 511 positioning block, a positioning groove 541, a 61 body 62 groove A, a hexagonal hole A in 63, a positioning screw 65 and a clamping ring 66.
Detailed Description
The invention is further described below in connection with fig. 1-5.
The invention adopts the following technical scheme:
the special mounting tool for the equalizing ring comprises a rear support body, a front support body and a nut tightening device;
the rear support body comprises a fixing part and a clamping part;
the fixing part comprises a flat plate 11, a back plate 12 fixedly connected with the flat plate 11, bolt fixing sleeves symmetrically fixed on the back plate 12, a positioning arc plate 13 fixed on the flat plate 11, a round sleeve 14 fixed on the flat plate 11, a connector and a clamping device arranged in the round sleeve 14;
the bolt fixing sleeve comprises a fixing sleeve 21 arranged on the back plate 12, a fixing bolt 22 in threaded connection with the fixing sleeve 21, a fixing round nut 23 inserted into the fixing sleeve 21 and an inner hexagonal hole 24 formed at one end of the fixing round nut 23;
the axis of the fixing bolt 22 is perpendicular to the axis of the fixing sleeve 21;
the connector comprises a connecting plate 31, a long groove 32 formed on the connecting plate 31, a screw 33 fixed at one end of the connecting plate 31, a nut 34 screwed on the screw 33 and a safety rod 35 fixed on the connecting plate 31; the screw 33 passes through the round sleeve 14;
the clamping device comprises a connecting rod 41 hinged with the flat plate 11, an upper positioning hook 42 hinged with the connecting rod 41, an adjusting screw 43 in threaded connection with the upper positioning hook 42, an upper adjusting spring 44 sleeved on the adjusting screw 43, a cross rod 45 in rotary connection with the flat plate 11, lower positioning hooks 46 symmetrically fixed at two ends of the cross rod 45 and lower adjusting springs 47 symmetrically sleeved on the cross rod 45;
one end of the upper adjusting spring 44 is contacted with the upper positioning hook 42, and the other end is contacted with the connecting rod 41; one end of the lower adjusting spring 47 is fixedly connected with the lower positioning hook 46, and the other end is fixedly connected with the flat plate 11;
as a further solution: the front support body comprises a front support body 51, a front support rod 52 in sliding connection with the front support body 51, a positioning ring 53 fixed at one end of the front support rod 52, a connecting plate 54 arranged at the other end of the front support rod 52, a connecting groove 55 arranged on the connecting plate 54, a connecting vertical plate 56 symmetrically fixed on the front support body 51, a front hook 57 in rotary connection with the connecting vertical plate 56, a front positioning arc plate 58 fixed on the connecting vertical plate 56 and an auxiliary positioning arc plate 59 fixed on the front positioning arc plate 58;
the front hook 57 is provided with a groove; a portion of the retaining ring 53 is located in a groove on the front hanger 57;
a positioning block 511 is fixed on the outer wall of the front support body 51; the connecting plate 54 is provided with a positioning groove 541; a portion of the locating block 511 is located within the slot 541.
As a further solution: the nut tightening device includes a body 61, a groove a62 formed in the body 61, and an inner hexagonal hole a63 formed in the body 61.
As a further solution: the body 61 is symmetrically provided with positioning screws 65; the body 61 is sleeved with a clamping ring 66; the axis of the positioning screw 65 is perpendicular to the axis of the inner hexagonal hole A63;
the snap ring 66 passes through a recess in the head of the set screw 65.
The grading ring consists of a half ring A and a half ring B, and the two half rings are connected through bolts.
Firstly, fixing a semi-ring A, which comprises the following specific steps:
1. the rear support body is mounted on an insulating rod, the insulating rod is also provided with a structure similar to the structure of the connecting plate 31 and the long groove 32 on the rear support body, and the connecting plate 31 on the rear support body is inserted on the insulating rod;
2. the heads of the two bolts are respectively placed into the inner hexagonal holes 24, then the semi-ring A is placed on the flat plate 11, the relative positions of the semi-ring A and the back plate 12 are adjusted, the two bolts respectively pass through the two mounting holes on the semi-ring A, the relative positions of the two bolts and the back plate 12 are adjusted again, and the positioning arc plate 13 is positioned in the middle of the semi-ring A;
3. simultaneously, the upper positioning hook 42 and the lower positioning hook 46 are pulled to rotate, so that the semi-ring A is attached to the positioning arc plate 13, the lower positioning hook 46 is loosened, the lower adjusting spring 47 drives the cross rod 45 to rotate, and the lower positioning hook 46 rotates along with the cross rod 45 to hook the semi-ring A; then the upper positioning hook 42 is loosened, the upper adjusting spring 44 pushes the adjusting screw 43 to enable the upper positioning hook 42 to rotate, and the semi-ring A is hooked;
4. loosening the nut 34, rotating the connection plate 31 to attach the safety bar 35 to one side of the half ring a, and then reversely tightening the nut 34; and simultaneously, the pretightening force between the nut 34 and the round sleeve 14 is adjusted, so that the nut and the round sleeve can relatively rotate after a large thrust is applied, and the problem that the rear support body cannot be separated from the rear half part of the equalizing ring due to overlarge resistance in the separation process is avoided.
Then fixing the semi-ring B, which comprises the following specific steps:
1. the front support body is mounted on another insulating rod, and the mounting step of the front support body is the same as that of the rear support body and is not repeated here;
2. the semi-ring B is placed between the front positioning arc plate 58 and the auxiliary positioning arc plate 59, and the front supporting rod 52 is pushed to move backwards along the axial direction of the front supporting body 51, and when the semi-ring B moves, the positioning ring 53 drives the front hook 57 to rotate, so that the semi-ring B is pressed on the auxiliary positioning arc plate 59.
Next, preparing two insulating rods for installing nuts, wherein the specific steps are as follows:
1. placing the nut into the inner hexagonal hole a63, and mounting the body 61 to the insulating rod, which is the same as the above-described step, and will not be described again here;
2. rotating the positioning screw 65 to enable the screw rod of the positioning screw 65 to be in contact with the outer wall of the nut, and preventing the nut from falling off from the inner hexagonal hole A63;
3. the snap ring 66 is spread open and placed in the groove in the head of the set screw 65, the snap ring 66 serving to prevent the set screw 65 from loosening as the body 61 rotates, causing the nut to slide out of the internal hexagonal hole a63.
The preparation work is completed, the installation work is started, and the specific steps are as follows:
1. the first staff holds the insulating rod provided with the rear support body and moves the rear support body to the rear of the equalizing ring mounting rod;
2. a second worker holds the insulating rod provided with the front support body and moves the front support body to the front of the equalizing ring mounting rod;
3. the positioning holes on the semi-ring B are aligned with the screw rods on the rear support body and pushed forward, so that the screw rods penetrate through the mounting holes of the semi-ring B;
4. the first staff member hands the insulating rod in the hand to the hand of the second staff member, picks up an insulating rod fixed with a nut tightening device, and screws the nut fixedly placed in the inner hexagonal hole A63 onto a screw rod aligned on the rear support body and tightens;
5. replacing another insulating rod provided with a nut tightening device, repeating the operation in the step 4, and screwing the nut onto another screw rod and tightening;
6. the insulating rod provided with the front support body is reversely pulled to enable the front support rod 52 to move along the direction that the box is far away from the equalizing ring along the axis direction of the front support body 51, the positioning ring 53 on the front support rod 52 moves simultaneously, the front hook 57 is stirred to rotate to enable the front hook to leave the semi-ring B, then the insulating rod is moved downwards to enable the semi-ring B to leave the front positioning arc plate 58 and the auxiliary positioning arc plate 59, and therefore separation of the front support body is achieved; the connecting plate 54 slides in the connecting groove 55, so that the relative rotation of the front supporting body 51 and the front supporting rod 52 can be avoided;
7. the rear supporting body is pushed backwards by the insulating rod forcefully, and the upper positioning hooks 42 and the lower positioning hooks 46 leave the semi-ring A, so that the rear supporting body is separated.
After the front support body and the rear support body are separated from the equalizing ring, all the installation work is completed.
Finally, it should be noted that the above embodiments are merely for illustrating the technical solution of the present invention, and not for limiting the same, and although the present invention has been described in detail with reference to the above embodiments, it should be understood by those skilled in the art that modifications may be made to the technical solution described in the above embodiments or equivalents may be substituted for some technical features thereof, and these modifications or substitutions do not depart from the spirit and scope of the technical solution of the embodiments of the present invention.
Claims (1)
1. The utility model provides a specialized mounting tool of equalizer ring which characterized in that: comprises a rear support body, a front support body and a nut tightening device;
the rear support body comprises a fixing part and a clamping part;
the fixing part comprises a flat plate (11), a back plate (12) fixedly connected with the flat plate (11), bolt fixing sleeves symmetrically fixed on the back plate (12), a positioning arc plate (13) fixed on the flat plate (11), a round sleeve (14) fixed on the flat plate (11), a connector and a clamping device, wherein the connector and the clamping device are arranged in the round sleeve (14);
the bolt fixing sleeve comprises a fixing sleeve (21) arranged on the back plate (12), a fixing bolt (22) in threaded connection with the fixing sleeve (21), a fixing round nut (23) inserted into the fixing sleeve (21) and an inner hexagonal hole (24) formed in one end of the fixing round nut (23);
the axis of the fixing bolt (22) is perpendicular to the axis of the fixing sleeve (21);
the connector comprises a connecting plate (31), a long groove (32) formed in the connecting plate (31), a screw rod (33) fixed at one end of the connecting plate (31), a nut (34) screwed on the screw rod (33) and a safety rod (35) fixed on the connecting plate (31); the screw rod (33) passes through the round sleeve (14);
the clamping device comprises a connecting rod (41) hinged with the flat plate (11), an upper positioning hook (42) hinged with the connecting rod (41), an adjusting screw (43) in threaded connection with the upper positioning hook (42), an upper adjusting spring (44) sleeved on the adjusting screw (43), a cross rod (45) in rotary connection with the flat plate (11), lower positioning hooks (46) symmetrically fixed at two ends of the cross rod (45) and lower adjusting springs (47) symmetrically sleeved on the cross rod (45);
one end of the upper adjusting spring (44) is contacted with the upper positioning hook (42), and the other end is contacted with the connecting rod (41); one end of the lower adjusting spring (47) is fixedly connected with the lower positioning hook (46), and the other end of the lower adjusting spring is fixedly connected with the flat plate (11);
the front support body comprises a front support body (51), a front support rod (52) in sliding connection with the front support body (51), a positioning ring (53) fixed at one end of the front support rod (52), a connecting plate (54) arranged at the other end of the front support rod (52), a connecting groove (55) formed in the connecting plate (54), a connecting vertical plate (56) symmetrically fixed on the front support body (51), a front hook (57) in rotary connection with the connecting vertical plate (56), a front positioning arc plate (58) fixed on the connecting vertical plate (56) and an auxiliary positioning arc plate (59) fixed on the front positioning arc plate (58);
a groove is formed in the front hook (57); a part of the positioning ring (53) is positioned in a groove on the front hook (57);
a positioning block (511) is fixed on the outer wall of the front support body (51); a positioning groove (541) is formed in the connecting plate (54); a portion of the locating block (511) is located within the slot (541);
the nut tightening device comprises a body (61), a groove A (62) formed on the body (61) and a hexagon socket A (63) formed on the body (61);
positioning screws (65) are symmetrically arranged on the body (61); a clamping ring (66) is sleeved on the body (61);
the axis of the positioning screw (65) is perpendicular to the axis of the inner hexagonal hole A (63);
the clamping ring (66) passes through a groove at the head part of the positioning screw (65);
the equalizing ring consists of a half ring A and a half ring B, and the two half rings are connected through bolts;
firstly, fixing a semi-ring A, which comprises the following specific steps:
s1, mounting a rear support body on an insulating rod, and inserting a connecting plate (31) on the rear support body on the insulating rod;
s2, respectively placing the heads of the two bolts into the inner hexagonal holes (24), then placing the semi-ring A on the flat plate (11), adjusting the relative positions of the semi-ring A and the back plate (12), enabling the two bolts to respectively pass through the two mounting holes on the semi-ring A, and adjusting the relative positions of the two bolts and the back plate (12) again, so that the positioning arc plate (13) is positioned in the middle of the semi-ring A;
s3, simultaneously pulling an upper positioning hook (42) and a lower positioning hook (46) to rotate, enabling the semi-ring A to be attached to the positioning arc plate (13), loosening the lower positioning hook (46), enabling a lower adjusting spring (47) to drive a cross rod (45) to rotate, enabling the lower positioning hook (46) to rotate along with the cross rod (45), and hooking the semi-ring A; then the upper positioning hook (42) is loosened, the upper adjusting spring (44) pushes the adjusting screw rod (43) to enable the upper positioning hook (42) to rotate, and the semi-ring A is hooked;
s4, loosening the nut (34), rotating the connecting plate (31) to enable the safety rod (35) to be attached to one side face of the semi-ring A, and then reversely screwing the nut (34); simultaneously, the pretightening force between the nut (34) and the round sleeve (14) is adjusted, so that the nut and the round sleeve can relatively rotate after applying a relatively large thrust;
the fixation of the half ring B is the same as the fixation of the half ring A.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711426377.3A CN108110679B (en) | 2017-12-26 | 2017-12-26 | Special mounting tool for equalizing ring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711426377.3A CN108110679B (en) | 2017-12-26 | 2017-12-26 | Special mounting tool for equalizing ring |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108110679A CN108110679A (en) | 2018-06-01 |
| CN108110679B true CN108110679B (en) | 2023-08-08 |
Family
ID=62213018
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711426377.3A Active CN108110679B (en) | 2017-12-26 | 2017-12-26 | Special mounting tool for equalizing ring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108110679B (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4189828A (en) * | 1976-05-28 | 1980-02-26 | Sherman & Reilly, Inc. | Conductor transfer device |
| CN203135324U (en) * | 2013-03-30 | 2013-08-14 | 国家电网公司 | Frapping tool used for power transmission line maintenance |
| CN203504067U (en) * | 2013-10-10 | 2014-03-26 | 平原县供电公司 | Live installation tool for bird scarer |
| CN105186365A (en) * | 2015-09-21 | 2015-12-23 | 国网山东荣成市供电公司 | Charged suspension clamp fastener |
| CN205004682U (en) * | 2015-09-21 | 2016-01-27 | 国网山东荣成市供电公司 | Electrified suspension clamp fastener |
| CN105406403A (en) * | 2015-12-29 | 2016-03-16 | 国家电网公司 | Auxiliary clamp for overhauling high-altitude power transmission line |
| WO2017133255A1 (en) * | 2016-02-03 | 2017-08-10 | 国家电网公司 | Device for fixing porcelain insulator and overhead conductor |
| CN207719728U (en) * | 2017-12-26 | 2018-08-10 | 国网河北省电力有限公司衡水供电分公司 | A kind of grading ring special installation tool |
-
2017
- 2017-12-26 CN CN201711426377.3A patent/CN108110679B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4189828A (en) * | 1976-05-28 | 1980-02-26 | Sherman & Reilly, Inc. | Conductor transfer device |
| CN203135324U (en) * | 2013-03-30 | 2013-08-14 | 国家电网公司 | Frapping tool used for power transmission line maintenance |
| CN203504067U (en) * | 2013-10-10 | 2014-03-26 | 平原县供电公司 | Live installation tool for bird scarer |
| CN105186365A (en) * | 2015-09-21 | 2015-12-23 | 国网山东荣成市供电公司 | Charged suspension clamp fastener |
| CN205004682U (en) * | 2015-09-21 | 2016-01-27 | 国网山东荣成市供电公司 | Electrified suspension clamp fastener |
| CN105406403A (en) * | 2015-12-29 | 2016-03-16 | 国家电网公司 | Auxiliary clamp for overhauling high-altitude power transmission line |
| WO2017133255A1 (en) * | 2016-02-03 | 2017-08-10 | 国家电网公司 | Device for fixing porcelain insulator and overhead conductor |
| CN207719728U (en) * | 2017-12-26 | 2018-08-10 | 国网河北省电力有限公司衡水供电分公司 | A kind of grading ring special installation tool |
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| Publication number | Publication date |
|---|---|
| CN108110679A (en) | 2018-06-01 |
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