CN103996912A - High-voltage grounding wire clamp - Google Patents
High-voltage grounding wire clamp Download PDFInfo
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- CN103996912A CN103996912A CN201410179706.9A CN201410179706A CN103996912A CN 103996912 A CN103996912 A CN 103996912A CN 201410179706 A CN201410179706 A CN 201410179706A CN 103996912 A CN103996912 A CN 103996912A
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- extension arm
- grounding wire
- wire clamp
- hinged
- folder
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Abstract
The invention discloses a high-voltage grounding wire clamp comprising a left clamping plate and a right clamping plate which are hinged by a pin shaft and respectively composed of a clamping blade and a clamping handle. The outer side face of one end, far away from the pin shaft hinge position, of each clamping blade is hinged with an extension arm through a hinge pin of which the head part is provided with an end cap, the outer cylindrical surface of the hinge pin is sheathed with a compression spring disposed between the end cap of the hinge pin and the outer side face of the extension arm, and the inner side face of the extension arm is flush with the inner side face of the clamping blade when being forwardly hinged in the extension direction of the clamping blade. The position, at which the extension arm is hinged, on each clamping blade is provided with a limiting slot for keeping the extension arm forwardly extended, the limiting slot is an arc metal sheet, one end of the arc of the metal sheet is fixed on the clamping blade, and the other end of the arc correspondingly is in clamped contact with the outer side face of the extension arm. The high-voltage grounding wire clamp of the invention has the advantages of simple structure, convenient operation, and high success rate of operation.
Description
Technical field
The present invention relates to the grounding wire device that a kind of transformer station is used, a kind of earthing clamp that is applicable to ultra-high-tension power transmission line specifically.
Background technology
After ultra-high-tension power transmission line has a power failure, before maintenance or repairing operation, must on the shaft tower at the ultra-high-tension power transmission line two ends that have a power failure, mount earthing clamp.The earthing clamp using at present comprises left clamping plate and right clamping plate, and left clamping plate and right clamping plate are hinged by bearing pin, and bearing pin place arranges spring, makes left and right clamping plate keep clamped condition.Clamping plate are divided into two parts by bearing pin, and bearing pin front portion is long is folder leaf, and bearing pin rear portion is shorter is clamp holder.On left folder leaf and right folder leaf, the equidistant position of distance bearing pin arranges the arc-shaped slot of mutual fastening, for clamping electric wire.Between two folder leaves, frizzen is set, the two ends of frizzen are respectively through the osculum on the sidewall of two folder leaves, and one end of frizzen is hinged on the osculum place of one of them folder leaf, the locking ladder that the other end setting of frizzen coordinates with the osculum on folder leaf.Grounding wire device and insulation operating rope are set on left clamp holder or right clamp holder.When use, first earth terminal grounding wire device being connected is arranged on steel tower, then, presses left clamp holder and right clamp holder overcomes spring force, the locking ladder of pressing frizzen is stuck in the osculum place of folder leaf, frizzen supports two folder leaves makes earthing clamp keep open state, and tractive insulation operating rope also relies on the self gravitation of earthing clamp to collide wire, until wire touches out frizzen, clamping plate lose support, closed under spring-force driven dual, clamp wire, complete installment work.
The number of times that each transformer station mounts earthing clamp every year exceedes 300 times; Line voltage distribution grade difference, 110kV hanging wire point is apart from approximately two meters of cross-arms, and 220kV hanging wire point exceedes 3 meters apart from cross-arm; The steel tower of the hanging wire of facing is varied, shaft tower turriform difference, tangent tower is different from strain tower hanging point position, and corner exterior angle is different from interior angle, the wherein the most difficult interior angle that will count strain tower of hanging wire, especially in the situation that corner is larger at this moment, the hanging point of earthing clamp is far from operating personnel, earthing clamp is difficult to during " aimings " wire a blow be, expend a large amount of muscle power, after repeatedly attempting unsuccessfully, can only use action bars, under another one people's cooperation, complete and mount; The factors such as tangent tower operation can be bad because of sight line, earth connection windage yaw is rocked impact articulates operation.
Summary of the invention
The technical issues that need to address of the present invention be to provide a kind of simple in structure, easy to operate, be operable to the high-voltage grounding wire clamp that power is high.
For solving the problems of the technologies described above, the technical solution adopted in the present invention is:
High-voltage grounding wire clamp, comprise the left clamping plate and the right clamping plate that respectively by folder leaf and clamp holder are formed hinged by bearing pin, two folder leaves are provided with the hinged extension arm of swivel pin of end cap separately by a head away from the lateral surface of one end of bearing pin articulated position, the outer cylinder of swivel pin is set with the Compress Spring between the end cap of swivel pin and the lateral surface of extension arm, when hinged along folder leaf bearing of trend described in the medial surface of extension arm concordant with the medial surface that presss from both sides leaf.
Further improvement of the present invention is: on described two folder leaves, the position of hinged extension arm is also respectively arranged with the restriction draw-in groove that keeps extension arm forward to extend, limiting draw-in groove is an arc metal plate, one end of the arc of sheet metal is fixed on folder leaf, and the corresponding card of the other end of arc touches the lateral surface of extension arm.
Further improvement of the present invention is: described extension arm arranges one end of swivel pin and offers the height ladder corresponding with folder leaf thickness that is stuck in folder leaf lateral surface, and extension arm arranges smooth chamfering away from the madial wall of one end of swivel pin.
Further improvement of the present invention is: described extension arm is away from the lateral surface riveted joint weight of one end of swivel pin articulated position.
Further improvement of the present invention is: the material of described extension arm is resin plate, and length is 24～26 centimetres, and thickness is 2～3 centimetres, and width is 8～10 centimetres.
Further improvement of the present invention is: the two ends of described extension arm length direction are globoidal structure.
Owing to having adopted technique scheme, the technological progress that the present invention obtains is:
The present invention considers to replace original clamping plate to improve the success rate of earth connection operation with longer metal splint at the beginning of design, although but find that such design can realize the object of enlarged opening, and there is higher intensity, but can increase earth connection overall weight, increased operation burden; And because clip entirety is too large, be not easy to carry; Development is more complicated also, and expense is higher.The present invention, after the lateral surface of folder leaf is by the hinged extension arm of powerful Compress Spring, not only can increase opening, and extension arm can also rotate and turn back in not using, and saving space, is easy to carry; When extension arm is in extension state forward time, the medial surface of extension arm is concordant with the medial surface of folder leaf, can again again not operate because of extension arm and the unsmooth needs of folder leaf joining place, further improve operating efficiency in addition.
The present invention arranges restriction draw-in groove at the lateral surface of folder leaf, clamps extension arm and makes to keep extension state, can not shake, the phenomenon of deflection, and more reliable and more stable, operation accurately.After extension arm rotation is turned back, also can not interfere with extension arm.
The present invention arranges weight at the end of extension arm, utilizes certain weight, can hit more reliably wire, handled easily.
Extension arm of the present invention adopts resin plate material, there is lightweight, good insulation preformance, be easy to processing, the opening of original earthing clamp only has 7 centimetres, also 10 centimetres of less thaies of the degree of depth, the A/F of earthing clamp of the present invention reaches 25 centimetres, the degree of depth reaches 36 centimetres, has all increased respectively more than 3.5 times.
The two ends of extension arm of the present invention are globoidal structure, are not easy to scratch wire, improve fail safe.
Always, that the present invention has advantages of is simple in structure, easy to operate, it is high to be operable to power, actual use found, originally need to attempt the ground wire that is all difficult to hang up above for 10 times, substantially can complete for 1 time now, activity duration tapers to several seconds by a few minutes, and simultaneously it has also solved large corner inner angle side and mount a difficult problem for ground wire.
Brief description of the drawings
Fig. 1 is structural representation of the present invention.
Wherein, 1, left clamping plate, 11, left folder leaf, 12, left clamp holder, 2, right clamping plate, 21, right folder leaf, 22, right clamp holder, 3, frizzen, 4, spring, 5, extension arm, 6, swivel pin, 61, end cap, 7, Compress Spring, 8, limit draw-in groove, 9, weight, 10, bearing pin.
Embodiment
Below in conjunction with drawings and Examples, the present invention is described in further details:
High-voltage grounding wire clamp, as shown in Figure 1, comprises the left clamping plate 1 hinged by bearing pin 10 and right clamping plate 2, and bearing pin 10 places arrange spring 4, makes left and right clamping plate keep clamped condition.Left clamping plate 1 are divided into two parts by bearing pin, are respectively left folder leaf 11 and the slightly short left clamp holder 12 of length that length is slightly long, and corresponding right clamping plate 2 are divided into right folder leaf 21 and right clamp holder 22.On left folder leaf 11 and right folder leaf 21, the equidistant position of distance bearing pin arranges the arc-shaped slot of mutual fastening, between left folder leaf 11 and right folder leaf 21, frizzen 3 is set, on left clamp holder 12, be provided with grounding wire device (position of bolt is set in figure) and insulation operating rope (not shown, by the mode identical with grounding wire device connect insulation operating rope or arrange connecting hole wear insulation operating rope).
Two folder leaves are away from one end hinged extension arm 5 separately of bearing pin 10 articulated position, and extension arm 5 is hinged on the lateral surface of folder leaf by a swivel pin 6.The head (being positioned at the outside of the lateral surface of extension arm) of swivel pin 6 is provided with end cap 61 structures, and the radial cross-section of the long-pending middle part pin that is greater than swivel pin 6 of radial cross-section of the end cap 61 of swivel pin is long-pending.The outer cylinder of the pin of swivel pin 6 is set with a powerful Compress Spring 7, and Compress Spring 7 is limited between the end cap 61 of swivel pin and the lateral surface of extension arm 5.Extension arm overcomes spring force and can rotate around swivel pin, when extension arm is in the time extending away from the direction of bearing pin articulated position to suitable folder leaf, extension arm is in extension state forward, and when extension arm is in the time pointing to the direction of bearing pin articulated position to turning back, extension arm is in reverse reflex state.
The material of described extension arm 5 is resin plate, and length is 24～26 centimetres, and thickness is 2～3 centimetres, and width is 8～10 centimetres.Extension arm 5 as shown in Figure 1, its overall structure is a strip, and extension arm 5 arranges one end of swivel pin 6 and offers ladder one, and the height of ladder equals to press from both sides the thickness of leaf away from one end of bearing pin 10 articulated position.The ladder offered ensures that extension arm is in the time of extension state forward, and the medial surface of the medial surface of extension arm and folder leaf in one plane.The two ends of extension arm 5 are preferably globoidal structure, and extension arm 5 arranges smooth chamfering away from the madial wall of one end of swivel pin 6, avoid scratching wire.In addition, extension arm 5 is riveted weight 9 away from the lateral surface of one end that swivel pin 6 is set.
On described two folder leaves, the position of hinged extension arm 6 also arranges respectively a restriction draw-in groove 8.Limiting draw-in groove 8 is an arc metal plate, and one end of the arc of sheet metal is fixed on folder leaf, and the corresponding card of the other end of arc touches the lateral surface of extension arm.Limit draw-in groove 8 in the time that extension arm forward extends, can keep the stability of extension arm 5.In the time of extension arm 5 reverse reflex, by overcoming the elastic force of Compress Spring 7, make extension arm 5 remain on the outside of arc-shaped slot, can not be subject to limiting the interference of draw-in groove 8.
Claims (6)
1. high-voltage grounding wire clamp, comprise the left clamping plate (1) and the right clamping plate (2) that respectively by folder leaf and clamp holder are formed hinged by bearing pin (10), it is characterized in that: two folder leaves pass through the hinged extension arm of a swivel pin (6) (5) separately away from the lateral surface of one end of bearing pin (10) articulated position, the outer cylinder of swivel pin (6) is set with the Compress Spring (7) being positioned between the end cap (61) of swivel pin and the lateral surface of extension arm (5), when hinged along folder leaf bearing of trend described in the medial surface of extension arm (5) concordant with the medial surface that presss from both sides leaf.
2. high-voltage grounding wire clamp according to claim 1, it is characterized in that: on described two folder leaves, the position of hinged extension arm (5) is also respectively arranged with the restriction draw-in groove (8) that keeps extension arm (5) forward to extend, limiting draw-in groove (8) is an arc metal plate, one end of the arc of sheet metal is fixed on folder leaf, and the corresponding card of the other end of arc touches the lateral surface of extension arm (5).
3. high-voltage grounding wire clamp according to claim 1 and 2, it is characterized in that: described extension arm (5) arranges one end of swivel pin (6) and offers the height ladder corresponding with folder leaf thickness that is stuck in folder leaf lateral surface, and extension arm (5) arranges smooth chamfering away from the madial wall of one end of swivel pin (6).
4. high-voltage grounding wire clamp according to claim 3, is characterized in that: described extension arm (5) is away from the lateral surface riveted joint weight (9) of one end of swivel pin (6) articulated position.
5. high-voltage grounding wire clamp according to claim 3, is characterized in that: the material of described extension arm (5) is resin plate, and length is 24～26 centimetres, and thickness is 2～3 centimetres, and width is 8～10 centimetres.
6. according to the high-voltage grounding wire clamp described in claim 4 or 5, it is characterized in that: the two ends of described extension arm (5) length direction are globoidal structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410179706.9A CN103996912B (en) | 2014-04-30 | 2014-04-30 | High-voltage grounding wire clamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410179706.9A CN103996912B (en) | 2014-04-30 | 2014-04-30 | High-voltage grounding wire clamp |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103996912A true CN103996912A (en) | 2014-08-20 |
| CN103996912B CN103996912B (en) | 2016-09-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410179706.9A Active CN103996912B (en) | 2014-04-30 | 2014-04-30 | High-voltage grounding wire clamp |
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| Country | Link |
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| CN (1) | CN103996912B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105725698A (en) * | 2016-02-03 | 2016-07-06 | 上海应用技术学院 | Detachable clip |
| CN110518378A (en) * | 2019-09-20 | 2019-11-29 | 镇江英沙电器有限公司 | A kind of multifunctional intellectual earthing or grounding means |
| CN111244645A (en) * | 2020-02-27 | 2020-06-05 | 徐州华显凯星信息科技有限公司 | Ground wire connecting clamp holder for power plant |
| CN111541062A (en) * | 2020-04-08 | 2020-08-14 | 国网河北省电力有限公司衡水供电分公司 | High-voltage grounding clamp |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2514063A (en) * | 1948-04-22 | 1950-07-04 | Chance Co Ab | Folding clamp stick |
| CN201018016Y (en) * | 2007-01-09 | 2008-02-06 | 刘军 | Lever interconnection type high voltage earthed wire clip |
| CN202384510U (en) * | 2011-12-16 | 2012-08-15 | 李军 | Grounding device for overhauling overhead line |
| CN102810774A (en) * | 2012-08-21 | 2012-12-05 | 湖南省电力公司永州电业局 | Angle-adjustable grounding wire device for electric power system |
| CN103515722A (en) * | 2013-10-24 | 2014-01-15 | 枣庄矿业（集团）有限责任公司柴里煤矿 | Foldable low-voltage discharging rod |
| CN203813061U (en) * | 2014-04-30 | 2014-09-03 | 国家电网公司 | High-voltage ground clamp |
-
2014
- 2014-04-30 CN CN201410179706.9A patent/CN103996912B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2514063A (en) * | 1948-04-22 | 1950-07-04 | Chance Co Ab | Folding clamp stick |
| CN201018016Y (en) * | 2007-01-09 | 2008-02-06 | 刘军 | Lever interconnection type high voltage earthed wire clip |
| CN202384510U (en) * | 2011-12-16 | 2012-08-15 | 李军 | Grounding device for overhauling overhead line |
| CN102810774A (en) * | 2012-08-21 | 2012-12-05 | 湖南省电力公司永州电业局 | Angle-adjustable grounding wire device for electric power system |
| CN103515722A (en) * | 2013-10-24 | 2014-01-15 | 枣庄矿业（集团）有限责任公司柴里煤矿 | Foldable low-voltage discharging rod |
| CN203813061U (en) * | 2014-04-30 | 2014-09-03 | 国家电网公司 | High-voltage ground clamp |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105725698A (en) * | 2016-02-03 | 2016-07-06 | 上海应用技术学院 | Detachable clip |
| CN110518378A (en) * | 2019-09-20 | 2019-11-29 | 镇江英沙电器有限公司 | A kind of multifunctional intellectual earthing or grounding means |
| CN110518378B (en) * | 2019-09-20 | 2024-04-02 | 镇江英沙电器有限公司 | Multifunctional intelligent grounding device |
| CN111244645A (en) * | 2020-02-27 | 2020-06-05 | 徐州华显凯星信息科技有限公司 | Ground wire connecting clamp holder for power plant |
| CN111541062A (en) * | 2020-04-08 | 2020-08-14 | 国网河北省电力有限公司衡水供电分公司 | High-voltage grounding clamp |
| CN111541062B (en) * | 2020-04-08 | 2021-05-11 | 国网河北省电力有限公司衡水供电分公司 | High-voltage grounding clamp |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103996912B (en) | 2016-09-21 |
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