CN203536854U - A universal clamp for replacing a single insulator of a power transmission line - Google Patents

A universal clamp for replacing a single insulator of a power transmission line Download PDF

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Publication number
CN203536854U
CN203536854U CN201320682864.7U CN201320682864U CN203536854U CN 203536854 U CN203536854 U CN 203536854U CN 201320682864 U CN201320682864 U CN 201320682864U CN 203536854 U CN203536854 U CN 203536854U
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CN
China
Prior art keywords
clamp
card
long
insulator
short
Prior art date
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Active
Application number
CN201320682864.7U
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Chinese (zh)
Inventor
王伟刚
李昶君
莫卫权
刘江涛
潘伟
秦庆森
李飞
李海晶
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Honghe Power Supply Bureau of Yunnan Power Grid Co Ltd
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Honghe Power Supply Bureau of Yunnan Power Grid Co Ltd
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Application filed by Honghe Power Supply Bureau of Yunnan Power Grid Co Ltd filed Critical Honghe Power Supply Bureau of Yunnan Power Grid Co Ltd
Priority to CN201320682864.7U priority Critical patent/CN203536854U/en
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Publication of CN203536854U publication Critical patent/CN203536854U/en
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Abstract

The utility model discloses a universal clamp for replacing a single insulator of a power transmission line. The universal clamp comprises a front clamp and a back clamp which are connected through a contraction screw rod. Each clamp comprises a long clamp body and a short clamp body. Locking holes are disposed on the two sides of the long clamp body and two side of the short clamp body of front clamp, and the two sides of the long clamp body and two side of the short clamp body of back clamp. The long clamp body and the short clamp body are connected by locking bolts passing through the locking holes. A circular hole with thread is disposed on the side surface of a protruded position on the long clamp body of the front clamp. A threaded sleeve is arranged in the circular hole. The two ends of a connecting bolt are connected with the threaded sleeve and a bayonet lock, respectively. The bayonet lock is then inserted into a spring pin hole of an insulator steel cap. Opposite arc surfaces of the long clamp body and the short clamp body of the back clamp are a taper arc surfaces with large inner ends and small outer ends. According to the universal clamp, the diameters of the front clamp and the back clamp can be adjusted. The universal clamp is not required to be tried onsite and is installed and replaced directly, thereby simplifying processes. Clamps in various models are integrated into one body so that the universal clamp is small in size, light in weight, and convenient in transportation and carrying.

Description

A kind of General clamping of changing monolithic insulator for transmission line
Technical field
The utility model relates to a kind of jig of changing insulator in transmission line, relates in particular to a kind of General clamping of changing monolithic insulator.
Background technology
Power department is in the management maintenance of transmission line, changing self-destruction insulator is very common work, at present for changing the jig of insulator, comprise two cards, be front card and rear card, front card and rear cartoon are crossed and are tightened up screw rod and be connected, while changing insulator, forward and backward card is stuck on the front a slice insulator steel cap that is replaced insulator and is replaced on rear a slice insulator steel cap of insulator, by tightening up of screw rod, carries out more changing jobs of insulator with unclamping.The size of tradition replacing instrument jig is fixed, a kind of jig model can only match with a kind of insulator model, and in the insulator that transmission line is used, the steel cap size disunity of insulator, nearly more than 20 kinds, and circuit run unit is to the statistics to insulator steel cap size not almost in the statistics of line parameter circuit value, therefore, each while changing monolithic insulator because can not determine the size of insulator steel cap, must carry a whole set of jig to on-the-spot on probation, both increase the weight of Work tool transportation, also increased difficulty and the time of maintenance defect elimination.
Utility model content
Technical problem to be solved in the utility model is, overcomes the above defect, provides a kind of reasonable in design, easy and simple to handle, changes safely and efficiently the universal card of monolithic insulator.
In order to solve the above technical problem, a kind of General clamping of changing monolithic insulator for transmission line of the utility model, comprise former and later two cards, each card comprises long and short two clamps, forward and backward cartoon is crossed and is tightened up screw rod connection, the long and short clamp both sides of described forward and backward card are provided with locking hole, and long and short clamp connects through locking hole by clamping screw; The boss side of the long clamp of front card is provided with the circular hole of screw thread, and screw shell is set in circular hole, connecting bolt two is set and is connected with bayonet lock with screw shell respectively, and bayonet lock inserts in the spring pin hole of insulator steel cap again; The long clamp of rear card is inner large outer little taper cambered surface with the relative cambered surface of rear card stub body.
As improvement, the boss both sides of front card stub body described in the utility model and the raised central portion of rear card stub body, the long clamp of front card and the long clamp of rear card are respectively arranged with reinforced hole, with adding fixing bolt, through reinforced hole, reinforce; Also can be respectively arranged with reinforced hole in the boss both sides of described front card stub body and the raised central portion of the long clamp of rear card, the long clamp of front card and rear card stub body, with adding fixing bolt, through reinforced hole, reinforce.
General clamping described in the utility model is the improvement to existing replacing insulator clamp apparatus:
1. by traditional being fixedly connected with, change the connected mode of described long clamp and stub body into flexible connection, be that described long clamp and stub body both sides arrange locking hole, long clamp is connected through locking hole by clamping screw with stub body, by the adjustable universal card diameter of clamping screw, to adapt to the insulator steel cap of different size;
2. for avoiding universal card, because diameter changes, be that lifting surface area changes the weakened of bringing, boss side in the long clamp of described front card arranges circular hole, screw shell is set in circular hole, connecting bolt two is set to be connected with bayonet lock with screw shell respectively, bayonet lock is connected with the spring catch of insulator steel cap again, to strengthen jig intensity;
3. when jig is with insulator steel cap change in size, whole stressed sometimes not on the center line of jig integral body, jig tilting action is in insulator when avoiding stressed, cause insulator quick-fried broken, the utility model, is reinforced through reinforced hole with adding fixing bolt, the boss both sides of long clamp arrange respectively reinforced hole in the raised central portion of described stub body, form triangle fixed mode, add fixing bolt and mainly play a supportive role, guarantee that described universal card is not crooked after stressed, stress equalization.
The beneficial effects of the utility model: the utility model is universal card, applied widely, can change the monolithic insulator of all models of 35~220kv transmission line; Universal card diameter capable of regulating, without scene model on probation, directly installs and changes, and working procedure is simplified, and speed is fast, and efficiency is high, reduces operating risk; Multiple Type jig is integrated into a set of, and volume is little, lightweight, and transportation, easy to carry only need to be with a set of jig replaceable.
Accompanying drawing explanation
Fig. 1 is card structure schematic diagram before the utility model;
Fig. 2 is card structure schematic diagram after the utility model; For long clamp vertical view;
Fig. 3 is the long clamp vertical view of front card;
Fig. 4 is front card stub body vertical view;
Fig. 5 is clamping pin structure schematic diagram;
Fig. 6 is bayonet lock side diagram;
Fig. 7 is the connection diagram of the utility model and insulator.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail.
A kind of General clamping of changing monolithic insulator for transmission line of the utility model, comprise former and later two cards, each card comprises long and short two clamps, forward and backward cartoon is crossed and is tightened up screw rod connection, the long and short clamp both sides of described forward and backward card are provided with locking hole 3, and long and short clamp connects through locking hole 3 by clamping screw 4; The boss side of the long clamp 1a of front card is provided with the circular hole 5 of screw thread, at the interior screw shell 6 that arranges of circular hole 5, connecting bolt 7 two is set and is connected with bayonet lock 8 with screw shell 6 respectively, and bayonet lock 8 inserts in the spring pin hole of insulator steel cap 9 again; The long clamp 2a of rear card is inner large outer little taper cambered surface with the relative cambered surface 12 of rear card stub body 2b.
As improvement, the boss both sides of front card stub body 1b and the raised central portion of rear card stub body 2b, the long clamp 1a of front card and the long clamp 2a of rear card are respectively arranged with reinforced hole 10 described in this Novel domestic, with adding fixing bolt 11, through reinforced hole 10, reinforce; Also can be respectively arranged with reinforced hole 10 in the boss both sides of described front card stub body 1b and the raised central portion of the long clamp 2a of rear card, the long clamp 1a of front card and rear card stub body 2b, with adding fixing bolt 11, through reinforced hole 10, reinforce.
Embodiment: General clamping described in the utility model, comprise front card 1 and rear card 2, the long and short clamp both sides of described forward and backward card are provided with locking hole 3, long and short clamp connects through locking hole 3 by clamping screw 4, by regulating the length of tight spiral shell bolt suitable to answer the size of different model insulator steel cap; While changing insulator, front card 1 is stuck in the groove inner side, limit of the front a slice insulator steel cap 9 that is replaced insulator, screw shell 6 is threaded by the long clamp 1a of circular hole 5 and front card, connecting bolt 7 two are connected with bayonet lock 8 with screw shell 6 respectively, bayonet lock 8 inserts in the spring eye of insulator steel cap 9 again, by regulating connecting bolt length to adapt to the steel cap size of different model insulator; Rear card 2 is stuck in the groove inner side, limit of the rear a slice insulator steel cap 9 that is replaced insulator, because the shape of insulator steel cap is tapered, in order to adapt therewith, the long clamp 2a of rear card is inner large outer little taper cambered surface with the relative cambered surface 12 of rear card stub body 2b, can tightly wrap up insulator steel cap, add the triangle that adds fixing bolt and fix, guarantee jig stress equalization, not crooked; Front card 1 is connected by tightening up screw rod 13 with rear card 2, by tightening up of screw rod, carries out more changing jobs of insulator with unclamping.
The utility model can be used for 35~220kV transmission line wire and shaft tower insulator material---the replacing of monolithic insulator in insulator string; comprise more changing jobs of linear string monolithic insulator, strain insulator-string monolithic insulator; be applicable to all porcelains in transmission line, glass fiber reinforced plastic insulator model; as long as used the above structure, all should fall into protection range of the present utility model.

Claims (3)

1. a General clamping of changing monolithic insulator for transmission line, comprise former and later two cards, each card comprises long and short two clamps, forward and backward cartoon is crossed and is tightened up screw rod connection, it is characterized in that, the long and short clamp both sides of described forward and backward card are provided with locking hole (3), and long and short clamp connects through locking hole (3) by clamping screw (4); The boss side of the long clamp of front card (1a) is provided with the circular hole (5) of screw thread, screw shell (6) is set in circular hole (5), connecting bolt (7) two is set and is connected with bayonet lock (8) with screw shell (6) respectively, bayonet lock (8) inserts in the spring pin hole of insulator steel cap (9) again; The long clamp (2a) of the rear card cambered surface (12) relative with rear card stub body (2b) is inner large outer little taper cambered surface.
2. a kind of General clamping of changing monolithic insulator for transmission line according to claim 1, it is characterized in that, the boss both sides of the raised central portion of described front card stub body (1b) and rear card stub body (2b), the long clamp (1a) of front card and the long clamp of rear card (2a) are respectively arranged with reinforced hole (10), with adding fixing bolt (11), through reinforced hole (10), reinforce.
3. a kind of General clamping of changing monolithic insulator for transmission line according to claim 1, it is characterized in that, the boss both sides of the raised central portion of the long clamp of described front card stub body (1b) and rear card (2a), the long clamp (1a) of front card and rear card stub body (2b) are respectively arranged with reinforced hole (10), with adding fixing bolt (11), through reinforced hole (10), reinforce.
CN201320682864.7U 2013-11-01 2013-11-01 A universal clamp for replacing a single insulator of a power transmission line Active CN203536854U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201320682864.7U CN203536854U (en) 2013-11-01 2013-11-01 A universal clamp for replacing a single insulator of a power transmission line

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201320682864.7U CN203536854U (en) 2013-11-01 2013-11-01 A universal clamp for replacing a single insulator of a power transmission line

Publications (1)

Publication Number Publication Date
CN203536854U true CN203536854U (en) 2014-04-09

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Application Number Title Priority Date Filing Date
CN201320682864.7U Active CN203536854U (en) 2013-11-01 2013-11-01 A universal clamp for replacing a single insulator of a power transmission line

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CN (1) CN203536854U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105470861A (en) * 2015-12-29 2016-04-06 国网浙江省电力公司嘉兴供电公司 Adaptive closed fixture for live working insulator of power transmission line
CN106340826A (en) * 2016-10-21 2017-01-18 国网浙江省电力公司检修分公司 Enclosed clamp

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105470861A (en) * 2015-12-29 2016-04-06 国网浙江省电力公司嘉兴供电公司 Adaptive closed fixture for live working insulator of power transmission line
CN105470861B (en) * 2015-12-29 2017-12-08 国网浙江省电力公司嘉兴供电公司 A kind of self-adaptation type closed type fixture of hot line maintenance insulator
CN106340826A (en) * 2016-10-21 2017-01-18 国网浙江省电力公司检修分公司 Enclosed clamp
CN106340826B (en) * 2016-10-21 2018-07-03 国网浙江省电力公司检修分公司 A kind of closed type fixture

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