CN104852327A - Earthing device for laying bare conductor - Google Patents

Abstract

The invention, which belongs to the field of equipment for power transmission and transformation work in the electric power industry, especially relates to an earthing device for laying a bare conductor. A limiting rod seat (1) is fixedly arranged at a top end surface of a frame type pulley rack (3) with an enclosed upper end and an open lower end; and a pressing pulley (5) is installed at the upper part in the frame of the pulley rack (3) by a pulley shaft (4). An upper end of a lead screw (10) is fixed at the bottom of a lead screw fixation pin seat (6-2) by a pin shaft (25); and a ring hooking seat (7) is installed at a periphery of a spring (11) movably above the lead screw (10). A lead screw rack (3-1) is arranged under an arc frame at the rear of the pulley rack (3); and the lower end of the lead screw (10) passes through a lead screw hole in the bottom of the lead screw rack (3-1). A pull ring (14) is fixed at the lower end head of the lead screw (10). A ground wire fixed terminal (27) is fixed above the left end of a conducting contact tray plate clamp (6) by a screw and a nut and is fixedly connected with one end of a ground wire (17). The earthing device has advantages of simple structure, small size, light weight, convenient usage and installation, and high portability.

Description

Plain conductor unwrapping wire earthing device

Technical field

The invention belongs to power industry power transmission and transformation operation equipment, particularly a kind of plain conductor unwrapping wire earthing device.

Background technology

At present; the operation of distribution 10KV line construction; discharge in plain conductor process and how conveniently effectively to carry out ground protection; operating personnel's personal safety is preserved from; it is an intractable problem always; original one " the box-like unwrapping wire earthing tackle of three assembly pulleys " volume is large and heavy, and every only close to about 10 kilograms, it is very inconvenient to install and use.Distribution 10KV city in addition, rural power grid distribution line construction operation is frequent, particularly rural power grids circuit, line corridor is complicated, high-and low-voltage circuit scissors crossing is more, in construction operation, by " line loss rate impact ", have a power failure difficulty relatively, set up crossing frame and can not play absolute safety effect again, because cross over during distribution 10KV line construction operation Yu with voltage or voltage levels crossing elimination, induced current can be produced, with low-voltage lines scissors crossing, there is live across phenomenon, this a series of course of work brings certain impact all to the safety in production of operating personnel, particularly make to discharge wire process difficulty to strengthen, dangerous upgrading, touch will have serious consequences once discharge in wire operation, cause operating personnel's personal injury even dead.

Summary of the invention

The object of the invention is to overcome above-mentioned technical deficiency, the plain conductor unwrapping wire earthing device that a kind of structure is simple, volume is little, lightweight, safe and reliable is provided.

The technical scheme that technical solution problem of the present invention adopts is: plain conductor unwrapping wire earthing device comprises pulley yoke, line ball pulley, screw mandrel frame, screw mandrel, earth connection fixed terminal, earth connection, the fine fixed terminal of steel, ground connection steel is fine, be characterized at upper end closed, the top end face of the shaped as frame pulley yoke of lower ending opening is fixed with spacing pole socket, be the parallel gag lever posts of two of sector at spacing pole socket built with lower end, with pulley spindle, line ball pulley is housed above in pulley frame-saw, fixed by screw mandrel in the pulley frame-saw of the below of line ball pulley key seat be fixedly equipped with bearing pin above press from both sides for the water conservancy diversion of flute profile contact supporting plate, water conservancy diversion contact supporting plate folder has been screwed plain conductor supporting plate in square groove, plain conductor is contained between line ball pulley and plain conductor supporting plate, the upper end fixing screw mandrel below key seat with bearing pin is fixed at screw mandrel, the excircle of screw mandrel is set with spring, link seat is equipped with in spring peripheral activity above screw mandrel, be fixed with before link seat and hang pin, arc pulley baffle plate folding before pulley yoke is flexibly connected with the pulley yoke above it, pin-and-hole is provided with in the below of pulley baffle plate, pin-and-hole on pulley baffle plate is flexibly connected with the extension pin on link seat, be screw mandrel frame below circular arc frame place after pulley yoke, bending at a right angle below screw mandrel frame, screw mandrel lower end is threaded onto the screw hole below screw mandrel frame, and with packing ring and clamp nut spacing fixing, the lower end of screw mandrel is fixed with draw ring, clamp spacing at the right-hand member gag lever post of water conservancy diversion contact supporting plate folder, with screw and nut dead earth line fixed terminal above the left end of water conservancy diversion contact supporting plate folder, earth connection fixed terminal is fixedly connected with one end of earth connection, the fine fixed terminal of other end steel of earth connection is connected with ground connection steel fibre, two sides on link seat are fixed with link, link mounts direction controlling pulley link, in direction controlling pulley link, closure controls pulley yoke, direction controlling pulley spindle is housed below direction controlling pulley yoke, direction controlling pulley direction controlling pulley spindle is equipped with, on direction controlling pulley, closure fixes steel wire loop, the two ends fixing steel wire loop in direction are connected and fixed cutting ferrule.

The invention has the beneficial effects as follows: the structure of plain conductor unwrapping wire earthing device is simple, volume is little, lightweight, use installation is very convenient, is easy to carry, secure to the personal safety of operating personnel, can use under any environmental condition.

Accompanying drawing explanation

Illustrate with embodiment below in conjunction with accompanying drawing.

Fig. 1 is plain conductor unwrapping wire grounding device constructions front view.

Fig. 2 is the partial top view of Fig. 1.

Fig. 3 is the partial left end view of Fig. 1.

In figure, the spacing pole socket of 1-; 2-gag lever post; 3-pulley yoke; 3-1-screw mandrel frame; 3-2-pulley baffle plate; 4-pulley spindle; 5-line ball pulley; 6-water conservancy diversion contact supporting plate folder; 6-1-plain conductor supporting plate; Key seat fixed by 6-2-screw mandrel; 7-link seat; 8-hangs pin; 9-folding; 10-screw mandrel; 11-spring; 12-packing ring; 13-clamp nut; 14-draw ring; 15-ground connection steel is fine; The fine fixed terminal of 16-steel; 17-earth connection; 18-fixes cutting ferrule; 19-direction controlling steel wire loop; 20-direction controlling pulley; 21-direction controlling pulley spindle; 22-direction controlling pulley yoke; 23-direction controlling pulley link; 24-link; 25-bearing pin; 26-plain conductor; 27-earth connection fixed terminal.

Embodiment

Embodiment, with reference to accompanying drawing 1 ~ 3, plain conductor unwrapping wire earthing device be the shaped as frame pulley yoke 3 of band circular arc at a upper end closed, lower ending opening top end face on be fixed with spacing pole socket 1, be the parallel gag lever posts 2 of two of sector at spacing pole socket 1 built with lower end.With pulley spindle 4, line ball pulley 5 is housed above in pulley yoke 3 frame, the two ends fastening nuts of pulley spindle 4, fixed by screw mandrel in the pulley yoke 3 of the below of line ball pulley 5 key seat 6-2 be fixedly equipped with bearing pin 25 above press from both sides 6 for the water conservancy diversion of flute profile contact supporting plate, water conservancy diversion contact supporting plate folder 6 is screwed the bare wire supporting plate 6-1 that metal is housed in square groove, plain conductor 26 is contained in above plain conductor supporting plate 6-1, and the top line ball pulley 5 of plain conductor 26 is pushed down.Below the middle of water conservancy diversion contact supporting plate folder 6, the upper end being fixed screw mandrel 10 in key seat 6-2 by bearing pin 25 fixed by the screw mandrel of Parallel Symmetric, and the excircle of screw mandrel 10 is set with spring 11.Link seat 7 is equipped with in the peripheral activity of spring 11 above screw mandrel 10, and be fixed with on before link seat 7 and hang pin 8, the circular arc pulley baffle plate 3-2 folding 9 before pulley yoke 3 is flexibly connected with pulley yoke 3.Be screw mandrel frame 3-1 below circular arc frame place after pulley yoke 3, bending at a right angle below screw mandrel frame 3-1, screw mandrel 10 lower end is threaded onto the screw hole below screw mandrel frame 3-1, and with packing ring 12 and clamp nut 13 spacing fixing, the lower end of screw mandrel 10 is fixed with draw ring 14.Clamp spacing at the right end gag lever post 2 of water conservancy diversion contact supporting plate folder 6, with screw and nut dead earth line fixed terminal 27 above the left end of water conservancy diversion contact supporting plate folder 6, earth connection fixed terminal 27 is fixedly connected with one end of earth connection 17, and the fine fixed terminal 16 of other end steel of earth connection 17 is fixedly connected with ground connection steel fibre 15.The two sides of link seat 7 are fixed with link 24, link 24 mounts direction controlling pulley link 23, in direction controlling pulley link 23, closure controls pulley yoke 22, direction controlling pulley spindle 21 is housed below direction controlling pulley yoke 22, direction controlling pulley spindle 21 is equipped with direction controlling pulley 20.On direction controlling pulley 20, closure fixes steel wire loop 19, and the two ends fixing steel wire loop 19 in direction are connected and fixed cutting ferrule 18.

The course of work of plain conductor unwrapping wire earthing device is: close on before live wire carries out discharging plain conductor operation in scissors crossing, first will by ground connection drill rod 15 ground connection of plain conductor unwrapping wire earthing device, then the direction controlling pulley 20 in device is fixed steel wire loop 19 with direction and be fixed on pay off rack behaviour on hand, then direction controlling pulley 20 link 24 is installed on direction controlling pulley link 23.After above-mentioned preparation completes, gag lever post 2 in device is upwards opened and opens pulley baffle plate 3-2 simultaneously, pull the draw ring 14 controlling screw mandrel lower end downwards, make water conservancy diversion contact holder folder 6 to open, the plain conductor 26 that then will prop up is put between water conservancy diversion contact holder folder 6 and line ball pulley 5, now unclamps draw ring 14, makes plain conductor 26 be in by clamp position, again gag lever post 2 is put down, plain conductor 26 can be discharged and carry out work.

Claims (2)

1. a plain conductor unwrapping wire earthing device, comprise pulley yoke (3), line ball pulley (5), screw mandrel frame (3-1), screw mandrel (10), earth connection fixed terminal (27), earth connection (17), the fine fixed terminal (16) of steel, ground connection steel fibre (15), it is characterized in that at upper end closed, the top end face of the shaped as frame pulley yoke (3) of lower ending opening is fixed with spacing pole socket (1), be the parallel gag lever posts (2) of two of sector at spacing pole socket (1) built with lower end, top pulley spindle (4) in pulley yoke (3) frame is equipped with line ball pulley (5), fixed by screw mandrel in pulley yoke (3) frame of the below of line ball pulley (5) key seat (6-2) be fixedly equipped with bearing pin (25) above press from both sides (6) for the water conservancy diversion of flute profile contact supporting plate, plain conductor supporting plate (6-1) has been screwed in the upper square groove of water conservancy diversion contact supporting plate folder (6), plain conductor (26) is contained between line ball pulley (5) and plain conductor supporting plate (6-1), the upper end with the fixing screw mandrel (10) of bearing pin (25) below key seat (6-2) is fixed at screw mandrel, the excircle of screw mandrel (10) is set with spring (11), in spring (11) the peripheral activity of the top of screw mandrel (10), link seat (7) is housed, be fixed with before link seat (7) and hang pin (8), the folding (9) of arc pulley baffle plate (3-2) before pulley yoke (3) is flexibly connected with the pulley yoke (3) above it, pin-and-hole is provided with in the below of pulley baffle plate (3-2), pin-and-hole on pulley baffle plate (3-2) is flexibly connected with the extension pin (8) on link seat (7), be screw mandrel frame (3-1) below circular arc frame place after pulley yoke (3), bending at a right angle below screw mandrel frame (3-1), screw mandrel (10) lower end is threaded onto the screw hole below screw mandrel frame (3-1), and with packing ring (12) and clamp nut (13) spacing fixing, the lower end of screw mandrel (10) is fixed with draw ring (14), clamp spacing at the right-hand member gag lever post (2) of water conservancy diversion contact supporting plate folder (6), with screw and nut dead earth line fixed terminal (27) above the left end of water conservancy diversion contact supporting plate folder (6), earth connection fixed terminal (27) is fixedly connected with one end of earth connection (17), the fine fixed terminal (16) of other end steel of earth connection (17) is connected with ground connection steel fibre (15), two sides on link seat are fixed with link (24).

2. plain conductor unwrapping wire earthing device according to claim 1, it is characterized in that mounting direction controlling pulley link (23) on link (24), in direction controlling pulley link (23), closure controls pulley yoke (22), direction controlling pulley spindle (21) is housed below direction controlling pulley yoke (22), direction controlling pulley (20) direction controlling pulley spindle (21) is equipped with, fix steel wire loop (19) in the upper closure of direction controlling pulley (20), the two ends fixing steel wire loop (19) in direction are connected and fixed cutting ferrule (18).