CN203243000U - Jumper wire clamp - Google Patents
Jumper wire clamp Download PDFInfo
- Publication number
- CN203243000U CN203243000U CN 201320245788 CN201320245788U CN203243000U CN 203243000 U CN203243000 U CN 203243000U CN 201320245788 CN201320245788 CN 201320245788 CN 201320245788 U CN201320245788 U CN 201320245788U CN 203243000 U CN203243000 U CN 203243000U
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- wire clamp
- main body
- clamp main
- clamp
- conduction
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Abstract
The utility model discloses a jumper wire clamp. The clamp belongs to the field of power circuit hardware fittings. The clamp comprises a clamp body and a pressing plate that fixes a jumper wire on the clamp body. The clamp body is long strip-shaped. A trunking is longitudinally disposed at the center of the clamp body. Two sides of the trunking are provided with flanges. Connection holes are symmetrically disposed on the flanges at one end of the clamp body. A plane plate with at least a first through hole is disposed at the end portion of the trunking at the other end of the clamp body. An arc protrusion is disposed at the middle of the pressing plate. Connection holes matching the connection holes at the flanges of the clamp body are symmetrically disposed at two sides of the pressing plate. The pressing plate is fixed at one end of the clamp body by a bolt. The clamp overcomes problems of poor contact of the jumper wire clamp and overheating break-off of the jumper wire, and solves problems that the jumper wires of a pole tower are frequently broke off in windy conditions. The clamp is small in contact resistance, firm and reliable, stable in performance, and difficult to break off, so that failure rate of the jumper wire is greatly reduced.
Description
Technical field
The utility model belongs to power circuit gold utensil field, relates to a kind of conduction wire clamp, especially a kind of conduction wire clamp that is fit to be installed on the blower fan shaft tower.
Background technology
Shaft tower is the major part of overhead power line body, and its effect is to support wire and lightning conducter, guarantees between wire and the lightning conducter, required distance between wire and the wire, between wire and ground or the scissors crossing thing.Drainage thread is the lead-in wire that connects load shaft tower both sides wire, also claims wire jumper or bow line.Conduction wire clamp is used for connecting non-rectilinear bar and drainage thread.
Conduction wire clamp commonly used is JB type parallel groove clamp, JBB type parallel groove clamp and JYT type jumper clamp.
At present, parallel groove clamp accounts for 95% of the total use amount of national wire clamp, uses the most extensive.Parallel groove clamp both sides folder wire, middle bolt compresses, if thrust is inadequate, the long-term use, bolt looseness, contact area is little, and it is large that resistance becomes, even easily burn; If too tight, will cause the drainage thread flattening deformation, because the creep of drainage thread, fastening force descends very soon, contact resistance is same to become large; In addition, drainage thread can stay the space through after the thermal cycle of expanding with heat and contract with cold, and contact resistance rises also very fast.The phenomenon of burn broken string so generating heat often appears in parallel groove clamp, failure rate is higher.Need often to safeguard, regular holding screw, maintenance workload is larger.In the practical application, usually need to use 2-3 parallel groove clamp to use simultaneously just a junction and can reach electric requirement, increase use cost.
JYT type jumper clamp body is aluminum component, leans on the bolt of iron to connect clamping.Because the coefficient of expansion of iron and aluminium is inconsistent, and the elastic limit of aluminium and creep limit are all lower, and in running, bolt is easily loosening.Will cause like this contact portion oxidation blackening of wire and wire clamp, contact reduces, and contact resistance increases; Simultaneously, aluminium is the oxidized generation aluminium oxide of meeting in air, and aluminium oxide insulate electric, can further increase contact resistance.When by larger load current, press from both sides online the contact-making surface regional area rubescent so that scorification cavitation or surface burn till uneven, from and further increased contact resistance, can blow drainage thread in the time of serious, cause large tracts of land to have a power failure for a long time.
Overhead power line is under the strong electromagnetic environment for a long time, bearing larger electric and mechanical load, be subject to the impact of the factors such as wind, rain, mist, icing, thunder and lightning, industrial waste gas, dust, outside destroy, existing conduction wire clamp easily is subject to oxide etch, occurs aging even damages, especially in strong wind season, drainage thread is under the high wind effect, it is large that wind amplitude of oscillation value becomes, and existing conduction wire clamp metal fatigue and poor flexibility easily make drainage thread fracture from the junction.
The utility model content
The purpose of this utility model is to overcome conduction wire clamp loose contact in the prior art, and drainage thread is overheated and in the phenomenon that strong wind easily fractures season, provides that a kind of contact resistance is little, solid and reliable, the conduction wire clamp of stable performance, non-frangibility.
For achieving the above object, the utility model adopts following technical scheme:
A kind of conduction wire clamp, comprise the wire clamp main body and drainage thread is fixed on tension disc on the described wire clamp main body, described wire clamp main body is strip, described wire clamp main body is the middle wire casing that is provided with vertically, the both sides of described wire casing are respectively equipped with the edge of a wing, be arranged with connecting hole on the edge of a wing of described wire clamp main body one end, described wire clamp main body other end wire casing end is provided with flat board, described flat board is provided with at least one first through hole, be provided with an arc convex in the middle of the described tension disc, described tension disc bilateral symmetry be provided with the described wire clamp main body edge of a wing on the connecting hole that is complementary of connecting hole, described tension disc is bolted an end that is fixed on described wire clamp main body.
The utility model has improved the structure of conduction wire clamp, adopts plank frame, and described wire clamp main body directly is connected with the drainage thread connecting plate by the first through hole is with bolts, has increased the contact area between wire clamp and the drainage thread connecting plate, has reduced contact resistance; Described tension disc is fixed on drainage thread in the wire casing of described wire clamp main body, prevents from causing loose contact between conduction wire clamp and the drainage thread terminal block because drainage thread rocks; Installation and removal with bolts conveniently do not need to use special tool(s) between described tension disc and the described wire clamp main body, are suitable for work high above the ground.Described wire clamp main body is fixed on the drainage thread terminal block by described the first through hole is with bolts, is applicable to leakage conductor and fuse switch place suitable for reading.
Perhaps described wire casing runs through described wire clamp main body, is symmetrically arranged with the second through hole on the edge of a wing of the described wire clamp main body other end.Described wire clamp main body adopts U-bolt to be fastened on the drainage thread terminal block by the second through hole, simultaneously drainage thread is fixedly held tightly, is applicable to circuit T and meets the place.
Further, described wire clamp main body and described tension disc are galvanized steel plain sheet.Adopt galvanized steel plain sheet to compare with existing iron or aluminum conduction wire clamp, have better corrosion resistance, high temperature oxidation resistance, the corrosion rate average specific iron and steel of galvanized steel is low more than 20 times under atmospheric conditions, is adapted to especially adverse circumstances, long service life; The anti-metal fatigue of galvanized steel plain sheet is high, is not easy to fracture, and is suitable for strong wind atmosphere; Owing to having the zinc layer of low-resistivity on the contact-making surface, contact resistance reduced; The coefficient of expansion of its material is identical with bolt, and bolt is not easy to become flexible, and has improved greatly the firm degree of conduction wire clamp.
Further, described wire casing is V-type wire casing or U-shaped wire casing.
Further, described notches for wire width is less than 2 millimeters of drainage thread diameters.Can guarantee that drainage thread tightly is fixed on the described wire clamp main body, does not produce displacement.
Further, described galvanized steel plain sheet is hot-dip galvanizing sheet steel.
Further, used nut was stop nut during described bolt connected.Further improved the firm degree of conduction wire clamp.
Little, solid and reliable, anticorrosive anti-oxidant, the long service life of the utility model contact resistance, applied widely, installation and removal are convenient, do not need periodic inspection, the labour intensity, the serviceability that have reduced the workman are good, be suitable for the long-term stability operation of ultra-high-tension power transmission line, have widely market prospects.
Description of drawings
Fig. 1 is the utility model embodiment 1 wire clamp main body 1 schematic diagram
Fig. 2 is the utility model embodiment 1 tension disc 2 schematic diagrames
Fig. 3 is the utility model embodiment 1 front view
Fig. 4 is the A-A cutaway view of Fig. 3
Fig. 5 is the utility model embodiment 2 wire clamp main bodys 1 schematic diagrames
Among the figure:
1, wire clamp main body 2, tension disc 3, wire casing
4, connecting hole 5, the edge of a wing 6, the first through hole
7, flat board 8, arc convex 9, nut
10, bolt 11, the second through hole
Embodiment
A kind of conduction wire clamp, comprise wire clamp main body 1 and drainage thread is fixed on tension disc 2 on the wire clamp main body 1, as shown in Figure 1, wire clamp main body 1 is strip, wire clamp main body 1 is vertically middle to be provided with wire casing 3, and the both sides of wire casing 3 are respectively equipped with the edge of a wing 5, are arranged with connecting hole 4 on the edge of a wing 5 of wire clamp main body 1 one ends, wire clamp main body 1 other end wire casing 3 ends are provided with flat board 7, and dull and stereotyped 7 are provided with at least one first through hole 6; As shown in Figure 2, be provided with arc convex 8 in the middle of the tension disc 2, tension disc 2 bilateral symmetry be provided with wire clamp main body 1 edge of a wing 5 on the connecting hole 4 that is complementary of connecting hole 4, tension disc 2 is fixed on an end of wire clamp main body 1 by bolt 10 and nut 9 shown in Fig. 3,4.
Adopt bolt 10 to connect by the first through hole 6 wire clamp main body 1 directly is connected with the drainage thread connecting plate, be applicable to the conduction wire clamp at leakage conductor and fuse switch place suitable for reading.This conduction wire clamp has increased the contact area between conduction wire clamp and the drainage thread terminal block, has reduced contact resistance; Tension disc 2 can be fixed on drainage thread in the wire casing 3 of wire clamp main body 1, prevents from that drainage thread from rocking to cause loose contact between conduction wire clamp and the drainage thread terminal block; Adopt bolt 10 connections and convenient disassembly between tension disc 2 and the wire clamp main body 1, only need to carry out the simple operations of fastening bolt, do not need to use special tool(s), be suitable for work high above the ground.
A kind of conduction wire clamp, comprise wire clamp main body 1 and drainage thread is fixed on tension disc 2 on the wire clamp main body 1, as shown in Figure 5, wire clamp main body 1 is strip, wire clamp main body 1 is the middle wire casing 3 that is provided with vertically, the both sides of wire casing 3 are respectively equipped with the edge of a wing 5, be arranged with respectively connecting hole 4 and the second through hole 11 on the edge of a wing 5 at wire clamp main body 1 two ends, as shown in Figure 2, be provided with an arc convex 8 in the middle of the tension disc 2, tension disc 2 bilateral symmetry be provided with the wire clamp main body 1 one end edges of a wing 5 on the connecting hole 4 that is complementary of connecting hole 4, U-bolt is fixedly held drainage thread tightly by the second through hole 11 and wire clamp main body 1 is fastened on the drainage thread terminal block, is applicable to the conduction wire clamp that circuit T meets the place.
Wire clamp main body 1 and tension disc 2 are galvanized steel plain sheet.Adopt galvanized steel plain sheet to compare with existing iron or aluminum conduction wire clamp, have better corrosion resistance, high temperature oxidation resistance, the corrosion rate average specific iron and steel of galvanized steel is low more than 20 times under atmospheric conditions, is adapted to especially adverse circumstances, long service life; The anti-metal fatigue of galvanized steel plain sheet is high, is not easy to fracture, and is suitable for strong wind atmosphere; Owing to having the zinc layer of low-resistivity on the contact-making surface, contact resistance reduced; The coefficient of expansion of its material is identical with bolt 10, and bolt 10 is not easy to become flexible, and has improved greatly the firm degree of conduction wire clamp.
3 mouthfuls of width of wire casing are less than 2 millimeters of drainage thread diameters.Can guarantee that drainage thread tightly is fixed on the wire clamp main body 1, does not produce displacement.
Further, described galvanized steel plain sheet can be hot-dip galvanizing sheet steel.
Further, used nut 9 was stop nut during described bolt connected.Further improved the firm degree of conduction wire clamp.
Above an embodiment of the present utility model is had been described in detail, but described content only is preferred embodiment of the present utility model, can not be considered to be used to limiting practical range of the present utility model.All equalizations of doing according to the utility model application range change and improve etc., all should still belong within the patent covering scope of the present utility model.
Claims (7)
1. conduction wire clamp, it is characterized in that: comprise wire clamp main body (1) and drainage thread is fixed on tension disc (2) on the described wire clamp main body (1), described wire clamp main body (1) is strip, described wire clamp main body (1) is the middle wire casing (3) that is provided with vertically, the both sides of described wire casing are respectively equipped with the edge of a wing (5), be arranged with connecting hole (4) on the edge of a wing (5) of described wire clamp main body (1) one end, described wire clamp main body (1) other end wire casing (3) end is provided with flat board (7), described flat board (7) is provided with at least one first through hole (6), be provided with an arc convex (8) in the middle of the described tension disc (2), described tension disc bilateral symmetry is provided with the connecting hole (4) that is complementary with the upper connecting hole (4) in described wire clamp main body (1) edge of a wing (5), and described tension disc (2) is fastened on an end of described wire clamp main body (1) by bolt (10).
2. conduction wire clamp according to claim 1, it is characterized in that: described wire casing (3) runs through described wire clamp main body (1), is symmetrically arranged with the second through hole (11) on the edge of a wing (5) of described wire clamp main body (1) other end.
3. conduction wire clamp according to claim 1 and 2, it is characterized in that: described wire clamp main body (1) and described tension disc (2) are galvanized steel plain sheet.
4. conduction wire clamp according to claim 3, it is characterized in that: described wire casing (3) is V-type wire casing or U-shaped wire casing.
5. conduction wire clamp according to claim 3 is characterized in that: described wire casing (3) mouthful width is less than 2 millimeters of drainage thread diameters.
6. conduction wire clamp according to claim 3, it is characterized in that: described galvanized steel plain sheet is hot-dip galvanizing sheet steel.
7. conduction wire clamp according to claim 3 is characterized in that: used nut (9) was stop nut during described bolt (10) connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320245788 CN203243000U (en) | 2013-05-08 | 2013-05-08 | Jumper wire clamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320245788 CN203243000U (en) | 2013-05-08 | 2013-05-08 | Jumper wire clamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203243000U true CN203243000U (en) | 2013-10-16 |
Family
ID=49320259
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320245788 Expired - Lifetime CN203243000U (en) | 2013-05-08 | 2013-05-08 | Jumper wire clamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203243000U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107221905A (en) * | 2017-08-01 | 2017-09-29 | 江苏恒安电力工具有限公司 | A kind of drainage thread wire clamp connected for tension tower conducting wire |
| CN114260103A (en) * | 2021-12-01 | 2022-04-01 | 钢城集团凉山瑞海实业有限公司 | Electrostatic precipitator negative pole silk protection device |
-
2013
- 2013-05-08 CN CN 201320245788 patent/CN203243000U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107221905A (en) * | 2017-08-01 | 2017-09-29 | 江苏恒安电力工具有限公司 | A kind of drainage thread wire clamp connected for tension tower conducting wire |
| CN107221905B (en) * | 2017-08-01 | 2018-11-27 | 江苏恒安电力工具有限公司 | A kind of drainage thread wire clamp for tension tower conducting wire connection |
| CN114260103A (en) * | 2021-12-01 | 2022-04-01 | 钢城集团凉山瑞海实业有限公司 | Electrostatic precipitator negative pole silk protection device |
| CN114260103B (en) * | 2021-12-01 | 2024-03-19 | 钢城集团凉山瑞海实业有限公司 | Cathode wire protection device of electrostatic precipitator |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20131016 |
|
| CX01 | Expiry of patent term |