CN205666530U - Instrument is changed to straight line insulator - Google Patents

Abstract

The utility model discloses a linear insulator replacement tool, which comprises a fixed base, a ratchet wire tightener and an insulating rod, one end of the insulating rod is hinged on the fixed base, and the ratchet of the ratchet wire tightener is connected to the fixed base through its central shaft , the insulating rope is wound on the central axis, and the insulating rod is connected with a pulley for guiding the insulating rope. The wire hook hooks the wire, and the ratchet wire tensioner tightens the insulating rope to transfer the load and loosen the linear insulator. During the replacement process, the insulation pole is used to realize live work, which is convenient for the maintenance of the agricultural distribution network line, realizes the fault handling under the live condition of the agricultural distribution network, meets the electricity demand of rural residents, and improves the service quality.

Description

Linear Insulator Replacement Tool

technical field

The utility model relates to an insulator replacement tool, in particular to a linear insulator replacement tool.

Background technique

With the continuous development of social economy and the improvement of residents' living standards, all walks of life have higher and higher requirements for the reliability of distribution network power supply. Live maintenance of lines is an effective means to ensure the continuous supply of electric energy. It has been widely used in urban areas. carry out. However, in the rural distribution network lines, the power grid enterprises still adopt the method of power outage maintenance.

In recent years, with the rapid development of the rural economy and the increase of household appliances, the traditional maintenance practice of "one line is pulled, one stop is large" can no longer meet the needs of rural electricity consumption, so live work has also begun to gradually extend As far as the agricultural distribution network is concerned, fault handling needs to be carried out in an environment without power outages to meet the electricity demand of rural residents and provide better services.

However, due to the following characteristics of the complex 10 kV line (agricultural distribution network line):

1. The traffic is inconvenient and the vehicles are difficult to reach;

2. The working environment is complex, and the insulated arm truck cannot reach the best working position;

3. The undulating terrain causes the relative height of the distribution line tower to rise, exceeding the operating radius of the insulated bucket truck.

Due to the above characteristics of the agricultural distribution network, the conventional direct operation method cannot complete live maintenance. Therefore, it is necessary to carry out live work project development through indirect operation.

The current indirect operations are all indirect operations through insulation operations, but there is currently no mature tool and method suitable for replacing linear insulators.

Utility model content

The purpose of the utility model is to provide a linear insulator replacement tool suitable for the indirect operation method.

The utility model discloses a linear insulator replacement tool, which comprises a fixed seat, a ratchet wire tightener and an insulating rod, one end of the insulating rod is hinged on the fixed seat, and the ratchet wheel of the ratchet wire tightener is connected to the fixed seat through its central shaft , the insulating rope is wound on the central shaft, and the insulating rod is connected with a pulley for guiding the insulating rope. The wire hook hooks the wire, and the ratchet wire tensioner tightens the insulating rope to transfer the load and loosen the linear insulator.

The fixing seat includes two vertical plates arranged opposite to each other and clamps fixed on the bottom of the two vertical plates. The two vertical plates are connected as a whole through a fixed rod, and the fixed rod is covered with a limit sleeve. The ratchet and the pawl are fixed on the same vertical plate. Outside the board, the central axis of the ratchet wire tensioner passes through the two vertical boards.

The vertical plates are provided with a plurality of circular holes arranged in an arc shape, and the circular holes on the two vertical plates are oppositely arranged, and the center of the circular arcs is located on the axial centerline of the central axis of the ratchet wire tensioner.

The chuck is L-shaped, and both outer ends of the chuck are provided with threaded heads, and L-shaped movable blocks and corresponding butterfly nuts are sleeved on the threaded heads.

The insulating rod is hinged between the two vertical plates of the fixing seat.

The two ends of the insulating rod are respectively detachably connected with a fixed seat connector and an insulating rope connector, and the two connectors are rectangular sleeves matched with the insulating rod.

The connecting head of the fixed seat is provided with a positioning hole that runs through a pair of side walls. The center distance between the positioning hole and the hinge point is equal to the radius of the arc. The positioning hole is inserted with a hole for defining the insulating rod and the vertical plate clamp. Angle positioning rod, the two ends of the positioning rod are threadedly connected with matching nuts.

There are two pulleys, both of which are fixed on the connecting head of the insulating rope, one is a guide wheel positioned on the upper side of the insulating rod, and the other is a reversing wheel positioned at the end of the insulating rod.

The materials of the fixing seat, the connecting head of the fixing seat and the connecting head of the insulating rope are all stainless steel, and the insulating rod is a hollow insulating rod.

To sum up, when the utility model is used, first clamp the tool on the cross arm, then adjust the angle between the insulating rod and the fixing seat so that the wire hook is directly above the linear insulator, and then place the wire hook on the linear insulator When the wire is hung on the wire hook, rotate the ratchet wire tensioner to tighten the insulating rope to transfer the load of the wire at the linear insulator, and then replace the linear insulator. After the replacement, turn the special wrench to release the wire and hang the wire back to the linear insulator. The replacement of the linear insulator can be completed, and the operation of the insulating rod is used during the replacement process, without power failure, which meets the requirements of the indirect operation method, facilitates the maintenance of the agricultural distribution network line, and realizes fault handling under the live condition of the agricultural distribution network to meet the needs of rural residents. electricity demand and improve service quality.

At the same time, in order to ensure that the wire hook can always be located directly above the wire of the linear insulator to facilitate the transfer of the load, the insulating rod is hinged on the fixing seat, and the angle between the two is adjusted through the positioning rod and the positioning hole.

In order to improve the stability of the insulating rope and ensure the working efficiency, a guide wheel and a reversing wheel are fixed on the insulating rod.

In order to ensure the service life and improve the use effect, the material of the fixing seat is selected as stainless steel.

In order to reduce the weight and facilitate portability and operation, the insulating rod is designed as a hollow rod.

Description of drawings

Fig. 1 is a schematic front view of a preferred embodiment of the present invention.

FIG. 2 is an enlarged schematic view of the fixing seat in FIG. 1 .

FIG. 3 is an enlarged schematic view of the chuck in FIG. 1 .

Graphic serial number:

1—fixed seat, 2—insulating rod, 3—ratchet tensioner, 4—insulating rope, 5—guiding wheel, 6—reversing wheel, 7—L-shaped movable block, 8—wing nut, 9—positioning rod , 10—wire hook, 11—chuck head, 12—stand plate, 31—ratche, 32—retreat pawl, 33—special wrench, 34—central shaft.

detailed description

As shown in Figures 1-3, the linear insulator replacement tool disclosed in this embodiment includes a fixing base 1, an insulating rod 2 and a ratchet wire tightener 3, one end of the insulating rod 2 is hinged on the fixing base 1, and the ratchet wire tightener 3 is connected to the fixed seat 1, and the insulating rope 4 is wound on the central axis 34 of the ratchet wire tensioner 3.

Fixing base 1 comprises two vertical plates 12 arranged oppositely and the chuck 11 fixed on two vertical plates 12 bottoms, two vertical plates 12 are connected as a whole by fixed rod 13, and fixed rod 13 overcoat has limit sleeve, and vertical plate 12 is provided with There is a row of circular holes arranged in a circular arc shape, and the circular holes on the two vertical plates 12 are arranged oppositely. The center of the circular arc is located on the axial centerline of the central shaft 34 of the ratchet tensioner 3, and the chuck 11 is L-shaped. , The two outer ends of the chuck 11 are provided with threaded heads, and the threaded heads are covered with L-shaped movable blocks 7 and corresponding wing nuts 8 .

The two ends of the insulating rod 2 are respectively detachably connected with a fixing seat connector 21 and an insulating rope connector 22 , both of which are rectangular sleeves matching the insulating rod 2 . The fixing seat connector 21 is provided with a positioning hole that runs through a pair of side walls. The center distance between the positioning hole and the hinge point is equal to the radius of the arc. The positioning hole is inserted with a positioning hole for limiting the angle between the insulating rod 2 and the vertical plate 12. Rod 9, the two ends of positioning rod 9 are threadedly connected with matching nuts, two pulleys are provided on the insulating rope connector 22, one is the guide wheel 5 positioned at the upper side of the insulating rod 2, and the other is positioned at the end of the insulating rod 2. The reversing wheel 6.

The ratchet wire tightener 3 includes a ratchet 31, a pawl 32, a special wrench 33 and a central shaft 34. The ratchet 31 and the pawl 32 are fixed on the same vertical plate 12, and the central shaft 34 passes through the two vertical plates 12. The connecting head 21 of the fixing seat is hinged between the two vertical plates 12 .

The materials of the fixing seat, the connecting head of the fixing seat and the connecting head of the insulating rope are all stainless steel, and the insulating rod is a hollow insulating tube.

It can be seen that through the replacement of linear insulators by the utility model, in the replacement process, only the insulating rod is used to operate, which can realize live work without power failure, meet the requirements of the indirect operation method, facilitate the maintenance of the agricultural distribution network lines, and realize the agricultural distribution network. Carry out troubleshooting under live conditions to meet the electricity demand of rural residents and improve service quality.

At the same time, in order to ensure that the wire hook can always be located directly above the wire of the linear insulator to facilitate load transfer, the insulating rod is hinged to the fixing seat, and the angle between the two is adjusted through the positioning rod and the positioning hole.

In order to improve the stability of the insulating rope and ensure the working efficiency, a guide wheel and a reversing wheel are fixed on the insulating rod.

In order to ensure the service life and improve the use effect, the material of the fixing seat is selected as stainless steel.

In order to reduce the weight and facilitate portability and operation, the insulating rod is designed as a hollow rod.

Claims (9)

1. a linear insulator changes instrument, it is characterised in that: it includes fixing seat, ratchet-wheel wire tightener and insulating bar, insulation One end of bar is articulated with on fixing seat, and the ratchet of ratchet-wheel wire tightener is connected on fixing seat by its central shaft, and insulating cord is around in On central shaft, insulating bar connecting and has the pulley for guiding to insulating cord, fixing seat is installed on cross-arm, by insulating bar Position adjustment realizes the position adjustment of insulating cord, and wire is hooked by thread hook in the end of insulating cord, passes through ratchet-wheel wire tightener Tighten up insulating cord come load transfer make linear insulator relax.

Linear insulator the most according to claim 1 changes instrument, it is characterised in that: described fixing seat includes two pieces relatively The riser arranged and be fixed on the dop bottom two risers, two risers are connected as a single entity by fixing bar, and fixing bar overcoat is limited Position set, described ratchet and pawl is fixed on outside same riser, and the central shaft of ratchet-wheel wire tightener passes two risers.

Linear insulator the most according to claim 2 changes instrument, it is characterised in that: described riser is provided with in circular arc The some circular holes arranged, each circular hole on two risers is oppositely arranged, and the center of circle of circular arc is positioned at described ratchet-wheel wire tightener central shaft On longitudinal center line.

Linear insulator the most according to claim 3 changes instrument, it is characterised in that: described dop is L-type, outside dop two End is equipped with thread head, and thread head is cased with L-type movable block and corresponding wing nut.

Linear insulator the most according to claim 4 changes instrument, it is characterised in that: described insulating bar is articulated with described solid Between two risers of reservation.

Linear insulator the most according to claim 5 changes instrument, it is characterised in that: the two ends of described insulating bar respectively can Dismounting connection has fixing seat union joint and insulating cord union joint, and two union joints are the rectangular sleeve being matched with insulating bar.

Linear insulator the most according to claim 6 changes instrument, it is characterised in that: described fixing seat union joint is provided with Running through the hole, location of its pair of sidewalls, the centre-to-centre spacing of hole, location and pin joint is inserted with in hole equal to the radius of described circular arc, location For limiting the location bar of insulating bar and described riser angle, the two ends of location bar are threaded supporting nut.

Linear insulator the most according to claim 7 changes instrument, it is characterised in that: described pulley has two, the most fixing On described insulating cord union joint, one be positioned at directive wheel on the upside of described insulating bar, another is for being positioned at insulating bar end Reverse wheel.

Linear insulator the most according to claim 8 changes instrument, it is characterised in that: described fixing seat, described fixing seat The material of union joint and described insulating cord union joint is rustless steel, and described insulating bar is hollow insulating bar.