The quadripartion jumper fixing device
Technical field:
The utility model relates to a kind of quadripartion jumper fixing device, belongs to the electric power conveying equipment.
Background technology:
Along with economic development is more and more faster, the various places need for electricity significantly improves, and high-tension line is also more and more intensive.Be subjected to the influence of topography and planning requirement, and system's difference of electric position, the corner ratio of the corner circuit of each high-tension line is more and more, and the various uses such as angle steel tower, steel pipe pole, steel tube tower are also more and more diversified, causes wire jumper use, installation also to become increasingly complex.
In ultra-high-tension power transmission line, the drainage wire jumper of strain tower is directly connected to the reliability service of wire insulation suspension system, and the 500kV line jumpers is free suspension, that is: use the many division wire jumper identical with wire type directly to hang on the jumper suspension string.Because this wire jumper sag is large, can not guarantee necessary gap when carrying than strong wind, particularly situation compacted under long at engineered paths, that gradation for surface pollution is high, the string that insulated is long is complicated, certainly will cause the shaft tower tower head excessive.
Freely-suspended wire jumper easily produces larger sag, on the one hand ground level is produced restriction, causes on the other hand the gap to tower body to reduce (particularly in the windage yaw situation); For reducing wire jumper to the gap of tower body, the middle phase jumping wire of former double hanging point has strengthened tower head cross-arm size, causes the increase of tower head size and the weight of shaft tower, thereby causes the raising of project cost.
The utility model content:
The purpose of this utility model is to provide a kind of wire jumper sag that effectively reduces, and has also reduced the tower head size, reduces costs the quadripartion jumper fixing device that economizes on resources.
The utility model is implemented by following technical scheme: the quadripartion jumper fixing device, it comprises jumper suspension wire clamp and jumper string, described jumper suspension wire clamp is suspended on described jumper string, it is characterized in that, it also comprises four hollow aluminium alloy pipes and two jumper wire spacing rods 4, four described hollow aluminium alloy pipes are clipped in respectively on described jumper suspension wire clamp, two described jumper wire spacing rods are separately fixed at the two ends of described hollow aluminium alloy pipe, and four described hollow aluminium alloy pipes are separately fixed on the termination of described jumper wire spacing rod.
Advantage of the present utility model: adopt aluminium-alloy pipe that freely-suspended streamlined wire jumper sag is become straight line, subdued the wire jumper sag, reduced the wire jumper windage yaw, wire jumper is strengthened the distance of tower body, thereby guaranteed electric clearance; Simplify the size of steel tower cross-arm, reduced steel tower weight, reduced project cost, effectively reduced the steel tower height, suitably reduced the steel tower root and opened, reduced floor space, reduced greenery patches destruction and massif and run off, be conducive to ecological environmental protection; Simple and reasonable, make easy to use, can pre-assembled moulding, easy access maintenance, low life-span of cost are long, not only economy but also practicality, range of application are wider, suitable applying.
Description of drawings:
Fig. 1 is overall structure schematic diagram of the present utility model.
Fig. 2 is use schematic diagram of the present utility model.
Jumper suspension wire clamp 1, jumper string 2, hollow aluminium alloy pipe 3, jumper wire spacing rod 4, wire jumper 5.
Embodiment: as shown in Figure 1, the quadripartion jumper fixing device, it comprises jumper suspension wire clamp 1, jumper string 2, four hollow aluminium alloy pipes 3 and two jumper wire spacing rods 4, jumper suspension wire clamp 1 is suspended on jumper string 2, four hollow aluminium alloy pipes 3 are clipped in respectively on jumper suspension wire clamp 1, two jumper wire spacing rods 4 are separately fixed at the two ends of hollow aluminium alloy pipe 3, four hollow aluminium alloy pipes 3 are separately fixed on the termination of jumper wire spacing rod 4, jumper wire spacing rod 4 plays fixation hollow aluminium-alloy pipe 3, prevents the effect of its twisting.
Using method: as shown in Figure 2, first wire jumper 5 is passed hollow aluminium alloy pipe 3, again four hollow aluminium alloy pipes 1 are clipped in jumper suspension wire clamp 1, again jumper suspension wire clamp 1 and jumper string 2 are linked together, at last quadripartion jumper wire spacing rod 4 is fixed on hollow aluminium alloy pipe 3, prevents its twisting.