JPS631528Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a protruding jig for lifting work of overhead power transmission lines. Transmission line overhead line work requires hoisting materials and tools for the construction of steel towers to a high place, and during the actual hoisting work, a hoisting system that is installed on the ground via a pulley attached to the highest armrest is required. After the machine is started, the lifting wires used to tie together the construction materials, tools, etc.
In order to avoid collisions with other arms, the current situation is that very primitive collision avoidance work is being carried out, such as having a worker placed on the arm in advance and pushing the arm outward with a stick when passing the arm. . Therefore, the present invention provides an ejection jig for fixing the moving locus of the lifting wire at a specific position on each cross arm in advance.

An embodiment of the present invention will be described with reference to the accompanying drawings. Reference numeral 4 denotes a lifting device for hoisting a suspended load 3 such as construction materials and tools on an iron tower 1, and 5 and 5' denote a top part. It is a pulley attached to the cross arm 2a, and is operated by a hoist 7 installed on the ground via a wire 6. Ejection jigs 8a to 8c are installed on the second to fourth cross arms 2b to 2d, respectively, with the locus of movement of the lifting wire 6, which frequently moves up and down, specified in advance so as not to collide.

Each ejection jig 8 has a horizontal arm 9 that rotates approximately horizontally.
The elevation support arm 10 that rotates in elevation is cross-connected 11 in a F-shape, and a wire passing portion 19 is provided at the tip thereof.
are fixedly installed, and the bifurcated proximal end portions 30 of the arms 9, 10,
31 are angle materials 32 and 3, which are the steel tower component materials, respectively.
2' with tightening fixtures 33 and 34.
35 is a horizontal rotation bearing portion for the bifurcated base end portion 30 of the horizontal arm 9, and is an angle member 32 having a “〓” shape.
It is tightened and fixed 33 to the circumferential surface of. That is, the bifurcated base end 30 of the horizontal arm 9 is a horizontal rotation shaft 3 whose upper and lower ends are supported by a U-shaped bearing plate 36 for horizontal rotation.
The U-shaped bearing plate 36 is bolted to the outer vertical surface 41 of the diagonal backing plate 40 in the tightening fixture 33 for the "〓"-shaped angle member 32.・Vertical fixation with nuts 42
has been done. The tightening fixture 33 is a vertical screw rod in which a head through hole 47 is inserted into a horizontal screw rod 45 for the diagonal backing plate 40 and a horizontal female screw portion 43 and a vertical female screw portion 44 provided at the upper and lower ends of the plate. 46 and 3rd each
Connect by screwing together as shown in the figure. 48 is a stopper nut screwed onto the horizontal screw rod 45. Reference numeral 49 denotes an elevation rotation bearing portion for the bifurcated proximal end portion 31 of the elevation support arm 10, which is fastened 34 to the circumferential surface of the “〓”-shaped angle member 32'. That is, the bifurcated proximal end 31 of the elevation support arm 10 is pivoted vertically on a tongue piece 52 projecting from a horizontal rotation shaft 51 whose upper and lower ends are supported by shafts 53, 53 so as to rotate horizontally on a bearing piece 50. Pivot support 54 with pin
However, the bearing piece 50 is an angle member 3 having a “〓” shape.
A diagonal abutting plate 55 in a tightening fixture 34 for 2' is fixed 57 to an outer vertical surface 56. The tightening fixture includes a vertical screw rod 61 into which a head through hole 62 is inserted into a horizontal screw rod 60 for the diagonal backing plate 55 and a horizontal female screw portion 58 and a vertical female screw portion 59 provided at the upper and lower ends of the plate. They are screwed together as shown in Figure 3. 6
3 is a stopper nut screwed onto the horizontal screw rod 60.

The horizontal arm 9 and the elevation support arm 10 are both extendable and retractable, into which the central analysis section is inserted from both ends, and the positioning holes 65 and 65' drilled at appropriate intervals are aligned and fixed with bolts and nuts 66 and 66. Mechanism parts 64 and 64' are respectively formed, and the cross connection part 11 between the two is formed by connecting the upper end part 13 of the elevation support arm 10 to the top plate 12, which has U-shaped corresponding surfaces facing each other, with a pin, as shown in FIG. A lower plate 15 from which a tongue piece 16 that is pivoted 14 is projected is fixed to the tip of the horizontal arm 9 with bolts 17. Reference numeral 19 denotes a wire passing portion 18 that is integrally fixed to the tip end of the horizontal arm 9, and two rollers 22 are installed in the upper stage of the C-shaped frame 20 whose outer end is opened 21 in the axial direction of the horizontal arm 9. , 22' are supported with parallel shafts 23, 23' having a constant width, and a cover plate 24 for opening and closing the opening 21 is secured to the protruding portion of the shaft by tightening with a hexagonal nut 25 and a butterfly nut 26, respectively. , the butterfly nut 26 side has a notch 27
The opening and closing operations are facilitated by the C-shaped frame.
A sliding roller 28 is pivotally supported in a direction perpendicular to the parallel roller, and the surrounding space of a certain width is used as a wire insertion part 29. 67, 67' is the relevant C
Side tension ropes 6 protruding from the left and right outer surfaces of the glyph frame 20
It is a latching hook of 8.68'.

As described above, the present invention has a horizontal arm 9 that rotates approximately horizontally.
An elevation support arm 10 that rotates in elevation is cross-connected 11 in a F-shape, and a wire passing portion 1 is provided at the tip thereof.
9 are integrally fixed, and the bifurcated proximal ends 30, 31 of the arms 9, 10 are tightened and fixed to the angle members 32, 32', which are the steel tower components, respectively.
34, the lifting wires 6
Since the movement trajectory of the horizontal arm 9 and the elevation support arm 10 can be determined horizontally, it is possible to eliminate the fear of collisions caused by vibrations caused by wind, etc., thereby greatly reducing the number of workers and providing quick and reliable lifting work. In addition, the vertical neck vibration can be easily performed, and both arms 9 and 10 are provided with telescoping mechanism parts 64 and 64', so that the position of the wire passing part 19 can be easily changed. This is a great idea.

[Brief explanation of the drawing]

FIG. 1 is a schematic diagram showing the state of use, FIG. 2 is a plan view of the same, FIG. 3 is a partially cutaway side view, and FIG. 4 is a partially cutaway plan view of the wire passage section. 1... Iron tower, 2... Bracelet, 3... Hanging load, 4...
...Lifting device, 5... Pulley, 6... Wire,
7... Winding machine, 8... Ejection jig, 9...
Horizontal arm, 10...Elevation support arm, 11...Cross connection, 12...Top plate, 13...Top end, 14...
Pivot support, 15... Bottom plate, 16... Tongue piece, 17...
... Bolt, 18 ... Fixed part, 19 ... Wire passage part, 20 ... C-shaped frame, 21 ... Opening, 22
... Parallel roller, 23 ... Axial support, 24 ... Cover plate, 25, 26 ... Nut, 27 ... Notch,
28...Sliding roller, 29...Wire insertion part, 30, 31...Bifurcated base end part, 32...Angle material, 33, 34...Tightening fixing part, 35...Horizontal rotation bearing part, 36... ...U-shaped bearing plate, 37... Pivotal support, 38... Horizontal rotation axis, 39... Pivotal support, 4
0... Diagonal backing plate, 41... Outer vertical surface, 42...
...Fixing part, 43...Horizontal female screw part, 44...Vertical female thread part, 45...Horizontal screw rod, 46...Vertical screw rod, 47...Head through hole, 48...Stopper nut, 49...Elevation angle rotation Dynamic bearing part, 50...bearing piece,
51...Horizontal rotation axis, 53, 54...Axis support, 5
2... tongue piece, 55... diagonal backing plate, 56... outer vertical surface, 57... fixing part, 58... horizontal female screw part, 59... vertical female thread part, 60... horizontal screw rod,
61... Vertical screw rod, 62... Head hole, 63...
Stopper nut, 64... Telescopic mechanism section, 65...
...Positioning hole, 66...Fixing part, 67...Latching hook, 68...Side tension line.

Claims (1)

[Scope of utility model registration request] A horizontal arm 9 that rotates approximately horizontally and an elevation support arm 10 that rotates in elevation are cross-connected 11 in a F-shape, and a wire passing portion 19 is integrally fixed to the distal end of the horizontal arm 9, which rotates approximately horizontally, and an elevation support arm 10 that rotates in an elevation angle. An ejecting jig for use in lifting work of power transmission line overhead line work, characterized in that base end portions 30, 31 are provided with tightening fixtures 33, 34 for tightening and fixing to angle members 32, 32', respectively.