CN2720692Y

CN2720692Y - Top-twisted wire-clip

Info

Publication number: CN2720692Y
Application number: CN 200420033952
Authority: CN
Inventors: 石爱民
Original assignee: Individual
Current assignee: Individual
Priority date: 2004-06-08
Filing date: 2004-06-08
Publication date: 2005-08-24
Anticipated expiration: 2014-06-08

Abstract

The utility model provides a top-twisted wire-clip, and the utility model relates to the hardware fittings field of the overhead transmission line. The utility model is composed of a grip element and top-twisted wires with 1-2 layers. The grip element is sheathed on the top-twisted wires, and the grip element is connected with an insulator or a pole tower. Each layer top-twisted wires are fixed into a row by a plurality of metal wires. The metal wires of both end parts of each layer top-twisted wires are staggered according to the long and short sizes. The metal wires of both end parts are arranged separately. After the metal wires are top-twisted into a helical shape, the metal wires are winded on cable wires. The utility model saves labor, and the utility model has convenient mount. When the cable wires of the overhead transmission line generates vibration because the cable wires of the overhead transmission line are subjected to the influence of the extrinsic factor, the long and short of the top-twisted wires winded on the cable wires are staggered. The segment of the radial arrangement provides the slow change area of the tension. The possibility of breaking wires for the cable wires is reduced. The top-twisted wire-clip is in convenient for the long-term safety of the cable wires, and the top-twisted wire-clip has reliable usage. The utility model can be widely used as the suspension wire-clip and strain wire-clip of the overhead transmission line.

Description

Preformed wire clamp

One, technical field

The utility model relates to the overhead transmission line gold utensil, particularly its preformed wire clamp.

Two, background technology

On cables such as the ground wire of overhead transmission line and aerial fiber cable circuit, lead, optical cable, adopt preformed wire clamp that cable is connected on insulator or the shaft tower usually, the preformed armor rods in the preformed wire clamp can make cable exempt from the damage of wire clamp clamping.

Preformed wire clamp comprises preformed armor rods and gripping member.Preformed armor rods is the hurricane band that is made of many wire spirals that are fixed as a row, so that be wrapped on the cable.The preformed armor rods that is wrapped on the cable is connected with insulator or shaft tower by gripping member.Preformed armor rods is divided into dangle two kinds of preformed armor rods and strain insulator preformed armor rodses, and the preformed armor rods that dangles is that the many wire spirals that will be fixed as a row are combined into hurricane band; The strain insulator preformed armor rods be equally will be fixed as a row many wire spirals form synthetic hurricane bands, but the interlude that is held the strain insulator preformed armor rods that part entangles is for bending shape in taking the shape of the letter U, the two ends section still becomes hurricane band.Gripping member is divided into dangle two kinds of gripping member and strain insulator gripping members.Preformed wire clamp mainly is divided into pre-hinged catenarian cable cleat and preformed strain clamp, and pre-hinged catenarian cable cleat is made up of with the gripping member that dangles the preformed armor rods that dangles, and preformed strain clamp is made up of strain insulator preformed armor rods and strain insulator gripping member.Cable is connected with insulator or straight line pole with the gripping member that dangles by the preformed armor rods that dangles, or cable is connected with insulator or corner pole with the strain insulator gripping member by the strain insulator preformed armor rods.

Preformed wire clamp in use, preformed armor rods can be one deck or two layers.The gripping member that dangles can be single gripping member or two gripping member.Therefore, pre-hinged catenarian cable cleat has individual layer preformed armor rods single lug, individual layer preformed armor rods two-wire folder, double-deck preformed armor rods single lug and the double-deck preformed armor rods four kinds of structural shapes of two-wire folder that dangle that dangle that dangle that dangle usually.Preformed strain clamp has individual layer preformed armor rods strain clamp and two kinds of structural shapes of double-deck preformed armor rods strain clamp usually.

Though it is multiple that the kind of existing preformed wire clamp and structural shape have, the common feature of its preformed armor rods is: the end of many one metal wires at preformed armor rods two ends is proper alignment.Its main deficiency is: the one, effort is installed, difficulty; The 2nd, there is the tension force sudden change in cable at the intersection that holding section that is twined by preformed armor rods and no preformed armor rods twine section, and when cable was subjected to the influence of extraneous factor that vibration takes place, disconnected easily strand of the cable of this intersection was unfavorable for the cable long-term safety, uses reliably.

Three, summary of the invention

The purpose of this utility model is at above-mentioned the deficiencies in the prior art, and a kind of preformed wire clamp is provided, and it is laborsaving that this wire clamp has installation, and is convenient; Cable is set up the gradual district of tension force at holding section that is twined by preformed armor rods and the intersection that no preformed armor rods twines section, reduces the possibility of disconnected strand of cable, helps the long-term safety of cable, the reliable use.

The purpose of this utility model is achieved in that a kind of preformed wire clamp comprises gripping member and 1-2 layer preformed armor rods, gripping member is enclosed within on the preformed armor rods and with insulator or shaft tower and is connected, every layer of preformed armor rods is fixed into a row by wire spiral, be combined into hurricane band, the metal wire of two end staggers by length, be spaced, the wire spiral of two ends of the preformed armor rods that promptly dangles all is to stagger by length, is spaced.The many wires that are held the strain insulator preformed armor rods interlude that part entangles are curved shape in taking the shape of the letter U, but remainder is constant.Individual layer preformed armor rods wire clamp is made up of one deck preformed armor rods and gripping member, and many wire spirals of two ends of preformed armor rods stagger, are spaced by long and short.Assembling mode is: preformed armor rods directly is intertwined and connected on cable, and gripping member is enclosed within on the preformed armor rods and with insulator or shaft tower and is connected.Double-deck preformed armor rods wire clamp is made up of two layers of preformed armor rods and gripping member, and the ground floor preformed armor rods is than the preformed filament length of the second layer, and many wire spirals of two ends of ground floor preformed armor rods and second layer preformed armor rods stagger, are spaced by length.Assembling mode is: the ground floor preformed armor rods directly is intertwined and connected at cable, and second layer preformed armor rods is intertwined and connected on the ground floor preformed armor rods, and gripping member is enclosed within on the second layer preformed armor rods and with insulator or shaft tower and is connected.Because many wire spirals of two ends of preformed armor rods stagger by length, be spaced, after it is wrapped in cable, stagger the gradual district of the section of being spaced formation tension force in the length of preformed armor rods.

After the utility model adopts technique scheme, because many wire spirals of preformed armor rods end are that length staggers, is spaced, and have the gap between wire spiral, thereby the wire spiral of preformed armor rods end can be wound into easily on the cable, easy operating, easy for installation.Simultaneously, the length of preformed armor rods end staggers, spaced many wire spirals, be wrapped on the cable, for cable has been set up the tension force buffering area, when cable vibrated because of the influence that is subjected to extraneous factor, because of there is the gradual district of tension force in cable, it is very little that disconnected burst of possibility of falling appears in cable, help the reliable use of cable, prolong the useful life of cable.

Four, description of drawings

Fig. 1 is the individual layer preformed armor rods of the present utility model single lug structure chart that dangles;

Fig. 2 is the individual layer preformed armor rods of the present utility model two-wire clamping structure figure that dangles;

Fig. 3 is the double-deck preformed armor rods of the present utility model single lug structure chart that dangles;

Fig. 4 is the double-deck preformed armor rods of the present utility model two-wire clamping structure figure that dangles;

Fig. 5 is the front view of individual layer preformed armor rods strain clamp of the present utility model;

Fig. 6 is the vertical view of Fig. 5;

Fig. 7 is the front view of double-deck preformed armor rods strain clamp of the present utility model;

Fig. 8 is the vertical view of Fig. 7;

Fig. 9 is the front view of the ground floor preformed armor rods in the novel double-deck preformed armor rods strain clamp of this use;

Figure 10 is the front view of the second layer preformed armor rods in the novel double-deck preformed armor rods strain clamp of this use.

Among the figure:

1-cable, 2-ground floor preformed armor rods, 3-sheath

4-PS link plate 5-L shaped yoke plate 6-second layer preformed armor rods

7-thimble, 8-straight line preformed armor rods, 9-strain insulator preformed armor rods

Five, embodiment

Below in conjunction with accompanying drawing, further specify the utility model.

The double-deck preformed armor rods strain clamp that is used for Optical Fiber composite overhead Ground Wire (OPGW), shown in Fig. 7～8, this wire clamp mainly is made up of gripping member and two layers of preformed armor rods, and used here gripping member is that 7, two layers of preformed armor rods of thimble are respectively ground floor preformed armor rods 2 and second layer preformed armor rods 6.Ground floor preformed armor rods 2 is the straight line preformed armor rods, and second layer preformed armor rods 6 is the strain insulator preformed armor rods.Ground floor preformed armor rods 2 is made of 8 aluminium Baogang helixes, and 8 aluminium Baogang helixes of two end are by adjacent 2 groupings long, adjacent 2 weak points.After the grouping, the aluminium Baogang helix of length aligns with the aluminium Baogang helix of length, and short aluminium Baogang helix aligns with the aluminium Baogang helix of weak point, and the aluminium Baogang helix of long aluminium Baogang helix and weak point is fixed as a row and is combined into hurricane band.The aluminium Baogang helix of two terminations of hurricane band is that length staggers, is spaced.Two groups of ground floor preformed armor rodses 2 are intertwined and connected on the cable 1 of Optical Fiber composite overhead Ground Wire.Second layer preformed armor rods 6 is made of 8 aluminium-clad steel wires, makes by aforesaid manufacturing process, and its interlude bending is curved shape in taking the shape of the letter U, and two terminations of hurricane band are towards equidirectional.Second layer preformed armor rods 6 is wrapped on the ground floor preformed armor rods 2, and the interior curved interlude that takes the shape of the letter U of second layer preformed armor rods 6 is connected with the strain insulator bar of overhead transmission line by thimble 7, thereby Optical Fiber composite overhead Ground Wire is fixedly connected on the strain insulator bar.

Claims

1, a kind of preformed armor rods wire clamp comprises gripping member and 1-2 layer preformed armor rods, and gripping member is enclosed within on the preformed armor rods and with insulator or shaft tower and is connected; It is characterized in that every layer of preformed armor rods is fixed into a row by wire spiral and is combined into hurricane band, the wire spiral of two end staggers by length respectively, is spaced.