JPH0140274Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to a suspension clamp device for ground wires used in places with horizontal angles.

(Prior art) As shown in Fig. 2, in places where the electric wire 1 to be stretched has a horizontal angle θ/2, conventionally a tension tower has been mainly used and the electric wire 1 has been stretched on a substantially straight line with a small horizontal angle. Basically, suspension towers are used for electrical cables, but recently there has been a trend to build more suspension towers in order to reduce tower construction costs. In such cases, horizontal angles often occur in the electric wires 1 strung between the suspension towers due to land issues for constructing the towers, so recently there has been a natural tendency to use suspension towers even in locations with horizontal angles. There is.

(Problem to be solved by the invention) In that case, as shown in Fig. 4, when the ground wire 1 is stretched with the conventional ground wire suspension clamp 2, the vertical load A and the lateral load B of the ground wire 1 are tensile composite load C (third
(see figure) is shifted from the periphery of the lower part of the wire groove of the ground wire suspension clamp body 2a and is applied to the wall of the wire groove, and as a result, an uneven load is applied to the suspension clamp device, making it impossible to achieve the original function of the device. There was a problem.

(Means for Solving the Problems) In order to solve the above-mentioned problems, in the present invention, the suspension clamp for the ground wire is attached to the tower via a slope, so that the suspension clamp for the ground wire can be fixed at a horizontal angle. The suspension clamp device for the ground wire is constructed by tilting the ground wire outward to apply a combined tensile load of the ground wire to the periphery of the lower part of the wire groove of the suspension clamp body.

(Function) As described above, the present invention installs the suspension clamp device for the ground wire, which attaches and tensions the ground wire, by tilting it to the steel tower via a tilting platform, thereby reducing the difference in height between the support points of the wire and the horizontal Since the suspension clamp is fixed by tilting outward from the horizontal angle at an angle determined by the angle and the load span length, the combined tensile load of the ground wire is applied to the area around the bottom of the wire groove of the suspension clamp body.

(Example) An example of the present invention will be described below with reference to FIG.

In the figure, 1 is the ground wire and 3 is the steel tower.

The ground wire suspension clamp device of the present invention is composed of a ground wire suspension clamp 4 and an inclined table 5, and the ground wire suspension clamp 4 has a bearing portion 6 and a suspension clamp portion 7. 7, a suspension clamp body 8 and a presser foot 9 having a wire groove opposite to the wire groove thereof are fastened with bolts 10 and nuts 11.
The lower mounting piece 8a of the suspension clamp body 8 is connected by a bolt 12 passing through a bearing 6a of the bearing portion 6. The inclined table 5 includes two trapezoidal plates 5a,
5b are arranged in parallel at intervals, and the upper and lower sides are the upper plate 5b.
The inclined table 5 and ground wire suspension clamp 4 are connected by a bolt 13 and a nut 14.
are connected together. Numerals 15 and 16 are bolts and nuts that connect the slope 5 to the steel tower 3.
The inclination of this inclined table 5 is determined by the difference in height of the support point of the ground line 1,
Determined by horizontal angle and load span length. This ground wire suspension clamp device is installed at the top of the suspension tower so as to be inclined outward from the horizontal angle.

(Effect of the invention) Since the device of the present invention is constructed as described above, the tensile composite load C of the ground wire is applied around the lower part of the wire groove of the suspension clamp body 8, so that almost no unbalanced load is applied to the wire groove. , the function of the suspension clamp device can be fully achieved.

[Brief explanation of the drawing]

Figure 1a is a front view of the device of the present invention, Figure b is its view in the direction of the X arrow, Figure c is its view in the direction of the Y arrow, Figure 2 is a plan view of the tension ground line having a horizontal angle, The figure is a load vector diagram of the ground line, and Figure 4a is a front view of the conventional device.
Figure b is a plan view thereof, and figure c is a side view thereof. 1... Ground wire (electric wire), 3... Steel tower, 4... Suspension clamp for ground wire, 5... Slope, 6... Bearing part,
7... Suspension clamp section, 8... Suspension clamp body, 9... Presser foot.

Claims (1)

[Scope of utility model registration request] In ground wire suspension clamp equipment used in places with horizontal angles, by attaching the ground wire suspension clamp to the tower via a tilting platform, the ground wire suspension clamp is tilted to the outside of the horizontal angle, and the suspension clamp is A ground wire suspension clamp device that applies a combined tensile load of the ground wire around the lower part of the wire groove of the main body.