CN2287345Y

CN2287345Y - Transmission line tensioner

Info

Publication number: CN2287345Y
Application number: CN 95228030
Authority: CN
Inventors: 郭玉平
Original assignee: Individual
Current assignee: Individual
Priority date: 1995-11-29
Filing date: 1995-11-29
Publication date: 1998-08-05
Anticipated expiration: 2005-11-29

Abstract

The utility model relates to a transmission line tightener which is composed of a clamp head (13), a traction rope (7) and a tightening device of a hoisting device (14), wherein, the clamp head is composed two symmetrical parts, one end is connected through a hinge and is capable of opening, and the other end is fixed by a latch to conveniently clamp and withdraw a transmission line; the clamp head (13) and the hoisting device (14) are connected through the traction rope (7); the hoisting device (14) is fixed on a pole where an operator stands. The traction rope (7) is firstly loosened in operation to make the clamp head slide on the transmission line (8), when the clamp head arrives at a predefined position, the traction rope is tightly connected backwards; accordingly, the clamp head can automatically clamp the transmission line; a hoisting handle is repeatedly wrenched to tightly draw the transmission line. The operator of the device can stand to operate the device, the line tightening distance in each time is long, the working condition is improved, and the work efficiency is increased.

Description

A kind of power transmission line wire grip

The utility model is a kind of mechanical stringing device that is used for power transmission line stringing and maintenance work high above the ground.

Wire grip chuck and the winding plant that generally uses in the construction is made of one now, and chuck adopts engage thread fastening, needs during operation manually lead to be clamped.Wire grip is away from electric pole, and operator's health that need tilt is pulled handle.The distance of each stringing depends on operator's the height and the angle of body inclination.The distance of each stringing is short, and working condition is poor, inefficiency.

The purpose of this utility model provides a kind of distance that can prolong each stringing greatly, but the wire grip of operator's upright operation.Thereby improve workman's working condition, increase work efficiency, guarantee safe production.

The utility model is to realize like this.In a wire grip of being made up of chuck, winding plant, pull rope, chuck separates with winding plant.The latter is fixed on the electric pole, connects chuck and winding plant with pull rope.Chuck can slide on lead and clamp lead automatically by the pulling force of pull rope.Because winding plant is fixed on the electric pole, near the operator, the operator can pull the spiral handle freely and carry out the stringing operation under erectility.Owing to do not need manually to clamp and loosen lead, the distance of each stringing only depends on the length of pull rope, and is not limited to operator's height in addition.

Be described in detail below in conjunction with 1 to 4 pair of the utility model of accompanying drawing.

The profile of Fig. 1 wire grip chuck illustrates the mutual alignment between each part of chuck.Wherein 1-framework, 2-fixture block, 3-spring, 4-crank arm, 5-pivot, 6-adjusting nut, 7-pull rope, 8 power transmission lines.

Fig. 2 is the front view of winding plant.Wherein 9-support, 10-reel, 11-ratchet, 12-handle.

Fig. 3 is the profile of winding plant.Each Part No. is identical with Fig. 2.

Fig. 4 is the stringing operation chart, also is the specification digest accompanying drawing.Wherein 13-chuck, 14-hoist.Other Part No. is identical with Fig. 1, Fig. 2.

The effect of chuck (seeing accompanying drawing 1) is to clamp and decontrol power transmission line.Chuck is made up of framework [1], fixture block [2], spring [3], crank arm [4], pivot [15], adjusting nut [6].It is made of symmetrical two parts.Except that framework [1], all parts of chuck all are paired, and between two parts of chuck, an end connects with hinge, can rotate folding.The other end connects with latch, sandwiches behind the lead fixing.Framework [1] is the main body of chuck, in order to install and to be connected other each part.Fixture block [2] is the unique part that contacts with power transmission line [8], can move along the direction vertical with power transmission line [8].Fixture block [2] is divided into arc surfaced with the power transmission line contact site, and is carved with decorative pattern, the frictional force during with the increase clamp.Because fixture block is more much bigger than traditional wire grip with the contact area of power transmission line, so reduced the damage of stringing operation to power transmission line.Spring [3] is a compression spring, be contained in screw rod that chuck links to each other on, its effect is laterally moving of control fixture block [2].At inactive state or pull rope pulling force hour, because the effect of spring [3], the gap between two fixture blocks is bigger, does not clamp power transmission line, and chuck can slide on the line.The effect of [4] of cranking arm is to compress fixture block [2], makes a part of longitudinal force of pull rope [7] change the cross force of extruding fixture block [2] into.The end of [4] of cranking arm is drilled with circular hole, is connected with pull rope, and the other end is made the involute cambered surface and contacted with fixture block.Crank arm [4] be fixed on the pivot [5], and be that rotate in the center of circle with pivot [5], with the power that pull rope [7] transmits, affact on the fixture block [2].Adjusting nut [6] and spring [3] be with being contained on the screw rod that links to each other with fixture block [2], by rotating the compressible or pull-off spring [3] of adjusting nut [6], is used for the elastic force of regulating spring [3], makes chuck be in suitable operating state.Open chuck during operation, allow power transmission line be between two fixture blocks, close latch, loosen pull rope, allow chuck on power transmission line [8], slide.After arriving the appropriate location, pull rope [7] is strained with a power.Because the effect of inertia of the quality of chuck own, crank arm [4] transmit inside cross force, can overcome the outside cross force of spring [3], extruding fixture block [2] clamping wire.At this moment just can pull hoist handle [12], reel [10] is rotated, the tight pull rope of property [7] drives, strains power transmission line [8].After power transmission line [8] is tightened up and is fixing, loosen pull rope, fixture block [2] is returned to out from state under the effect of spring [3].Light dragline messenger [7] because at this moment the strength that affacts on the fixture block [2] of pull rope is less, is not enough to compress spring [3], and fixture block [2] can not clamp power transmission line [8], chuck can slide back operations person position.At this moment can draw back latch, chuck is withdrawed from from power transmission line [8].Carry out the next round operation.

The available ordinary steel rope of pull rope [7] is made.Its length is decided on actual needs, and rolling at ordinary times is on reel [10].Pull rope [7] one ends are connected on the reel [10], and the other end is divided into two strands, are connected in the termination of two crank arm [4] respectively.

The effect of winding plant (seeing Fig. 2, Fig. 3) is to produce enough pulling force, tension power transmission line [8].It is made up of support [9], reel [10], ratchet [11], handle [12].Utilize the check device of ratchet [11], fastening power transmission line [8].

The utility model has improved working condition, operator's inclination position is become orthostatic body position, saved manual fastening operation of unloading chuck, increased the distance of each stringing, improve work efficiency, helped safety in production, alleviated labour intensity, having reduced the trouble of folding and unfolding safety belt, is a kind of effective outside line workman's power tool.

Claims

1. a wire grip that is used for power transmission line and maintenance aerial work is made up of chuck, pull rope, winding plant, and it is characterized in that: winding plant and chuck are two separate parts, and pull rope one end connects chuck, and the other end connects winding plant.

2. according to the described device of claim 1, wherein said chuck comprises framework, fixture block, spring, cranks arm, pivot, adjusting nut, and chuck is made of symmetrical two parts, is connected by hinge and latch.

3. device according to claim 2, the fixture block on the chuck by crank arm and spring control folding, the degree of tightness available adjustment nut of spring is regulated.