CN108879546B - High-voltage line falling prevention device and using method - Google Patents

High-voltage line falling prevention device and using method Download PDF

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Publication number
CN108879546B
CN108879546B CN201810922347.XA CN201810922347A CN108879546B CN 108879546 B CN108879546 B CN 108879546B CN 201810922347 A CN201810922347 A CN 201810922347A CN 108879546 B CN108879546 B CN 108879546B
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China
Prior art keywords
rope
breaker
electric wire
wire
tensioning
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Application number
CN201810922347.XA
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CN108879546A (en
Inventor
傅子豪
徐爱民
张伟
徐传栋
沈志豪
聂昌宽
李祥
吴联盟
林飞
毛利强
纪庆群
刘金龙
徐思迪
刘祥照
王凯
李育赢
徐飞
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Ju'nan Power Supply Co Of State Grid Shandong Electric Power Co
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Ju'nan Power Supply Co Of State Grid Shandong Electric Power Co
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Priority to CN201810922347.XA priority Critical patent/CN108879546B/en
Publication of CN108879546A publication Critical patent/CN108879546A/en
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Classifications

    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02GINSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
    • H02G1/00Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines
    • H02G1/02Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines for overhead lines or cables
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02GINSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
    • H02G7/00Overhead installations of electric lines or cables
    • H02G7/04Arrangements or devices for relieving mechanical tension
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02GINSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
    • H02G7/00Overhead installations of electric lines or cables
    • H02G7/18Devices affording mechanical protection in the event of breakage of a line or cable, e.g. net for catching broken lines

Abstract

The invention relates to a device for preventing a high-voltage wire from falling, which comprises an electric wire, a pull rod and a pull rod, wherein the electric wire is hung on the upper part of an electric pole, and the device further comprises: hang the assembly pulley on the pole, connect the tensioning rope between the assembly pulley, it has the breaker to establish ties between the tensioning rope, is connected with the haulage rope respectively between tensioning rope, the breaker, and simultaneously between the pole, the below of electric wire is provided with the string bag, is provided with the receiver in the below of assembly pulley. The invention also discloses a using method of the invention, which can reduce the possibility of wire breakage, alarm is generated when the wire is broken to cut off the power of the wire, and the wire is furled to prevent the wire breakage port from falling to the ground and causing danger.

Description

High-voltage line falling prevention device and using method
Technical Field
The invention belongs to the technical field of high-voltage transmission line operation, maintenance and repair equipment, and particularly relates to a high-voltage line falling prevention device and a use method thereof.
Background
The transmission is realized by using a transformer to boost the electric energy generated by the generator and then connecting the electric energy to a transmission line through control equipment such as a breaker and the like. According to the structural form, the power transmission line is divided into an overhead power transmission line and a cable line. The overhead transmission line consists of a line tower, a lead, an insulator, a line hardware fitting, a stay wire, a tower foundation, a grounding device and the like and is erected on the ground. High-voltage transmission is generally transmitted underground by cables with insulating layers in cities, and is transmitted by overhead lines carried by iron towers in the field.
With the rapid development of cities, the overhead line originally in the suburbs is gradually changed into the overhead line in the cities, the overhead high-voltage line has the condition that the overhead high-voltage line is broken and falls, and accidents occurring after the overhead high-voltage line is broken and falls occur sometimes, so that the production and life of nearby residents are seriously threatened.
The existing high-voltage wire anti-falling device is mainly applied to power supply of a contact net of a railway system, and structurally, a cantilever support is arranged on an electric pole, a carrier cable (similar to a tension rope in the invention) is arranged on the cantilever support, and the carrier cable hangs a high-voltage wire through a dropper (similar to a traction rope in the invention), so that the stress of the high-voltage wire is reduced, the tensile strength is reduced, and the breakage is avoided. The device has a simple structure, and cannot give an alarm in time after a fault occurs, and the electric wire fracture opening is easy to generate life danger after the electric wire is fractured and falls to the ground, so that casualties are caused.
Disclosure of Invention
The invention provides a high-voltage wire falling prevention device and a use method thereof, aiming at solving the technical problems in the background art, the high-voltage wire falling prevention device can reduce the possibility of wire breakage, alarm is generated when the wire is broken, the power of the wire is cut off, and the wire is folded at the same time, so that the wire breakage port is prevented from falling to the ground and causing danger.
The technical scheme adopted by the invention for solving the problems is as follows: the utility model provides a prevent high-voltage line device that falls, includes the electric wire, hangs and establishes on pole upper portion, still includes:
the pulley block is hung on the electric pole above the electric wire;
the tensioning rope is connected between the pulley blocks;
the breakers are uniformly distributed on the tensioning ropes in series, and divide the tensioning ropes between the electric poles into 3 sections; the end part of the tensioning rope close to the electric pole is fixedly connected with the electric pole;
the traction rope is connected between the electric wire and the breaker and between the electric wire and the tensioning rope;
the net bag is hung between the electric poles below the electric wires and is connected to the ground through a lead;
the storage box is fixed on the electric pole through a hoop;
the pulley block comprises
The cross arm is fixed on the electric pole;
the static pulleys are fixed at the two ends of the cross arm,
the movable pulley is hung between the static pulleys through a tensioning rope,
the balancing weight is hung on the movable pulley and tensions the tensioning rope;
the breaker comprises
The side wall and the bottom plate form a protective shell of the breaker;
the left mounting hole and the right mounting hole are respectively positioned on two opposite side walls of the breaker;
the left arm, the right arm and the swing arm are positioned in the breaker shell and integrally formed to form a T-shaped swing structure, the central point of the T-shaped swing structure is hinged to the shell, and the tail end of the swing arm is connected with a traction rope;
the left hook and the right hook are respectively positioned at two ends of the left arm and the right arm, are upwards arranged in an arc shape, and are respectively opposite to the left mounting hole and the right mounting hole;
one end of the left spring and one end of the right spring are fixed on the bottom plate, and the other end of the left spring and the other end of the right spring are free ends and are respectively abutted with the left arm and the right arm;
the bolt penetrates through the bottom plate and the left arm and is in threaded connection with the bottom plate and the left arm respectively;
the tension sensor is arranged on the right arm and used for detecting the tension strength between the left hook and the right hook;
the controller is arranged in the shell and comprises a wireless communication module and a battery;
the tension sensor is electrically connected with the controller.
Preferably, the tensioning rope is a steel wire rope, and the disconnected tensioning rope is hung on the left hook and the right hook.
Preferably, the breaker can pass through a pulley of the pulley block.
Preferably, the haulage rope comprises insulating material, is in the unstressed state during normal work, and the tensile strength of haulage rope is less than the tensile strength of tensioning rope.
Preferably, an insulator is arranged between the traction rope and the wire.
Preferably, the net bag main body is made of a conductive material and is connected with the ground through a wire, and the net bag is in insulation connection with the electric pole through an insulator;
preferably, the storage box is overlapped with the balancing weight along the direction of the electric pole, and the balancing weight falls into the storage box after falling;
preferably, a solar panel is arranged on the sun-facing surface outside the breaker and electrically connected with the controller.
Meanwhile, based on the high-voltage line falling prevention device, the invention also provides a use method, which comprises the following steps:
step 1: installation of a disconnector
Firstly, taking down a balancing weight of a pulley block, disassembling a bolt of a breaker, enabling a tensioning rope to pass through a left mounting hole and a right mounting hole to be hung on a left hook and a right hook of the breaker, then screwing back the bolt to prevent a left arm and a right arm from swinging, preventing the tensioning rope from falling off in advance, then hanging the balancing weight on a movable pulley, tensioning the tensioning rope, and finally taking down the bolt;
step 2: hanging device of traction rope
The traction ropes are provided with a plurality of ropes, two of the ropes are hung on the swing arms of the 2 breakers respectively, the other ends of the ropes are connected with electric wires, the other ropes are divided into two groups and symmetrically installed, one ends of the ropes are hung on the tensioning ropes between the breakers and the pulley block, and the other ends of the ropes are connected to the electric wires in a distributed manner;
and step 3: hanging device for net bag
The net bag is hung below the electric wire between the electric poles, and can hold the electric wire after the electric wire falls;
and 4, step 4: mounting of storage box
The storage box is arranged on the electric pole through the hoop, and the position of the storage box is adjusted, so that the balancing weight can fall into the storage box after falling;
and 5: working process
When the solar panel is normally used, the traction rope is naturally stressed and connected with the wire, the solar panel generates electricity in the daytime, and the tension sensor is ensured to be in a normal working state at any time by the power supply of the controller and the battery;
during use, there are mainly 4 fracture cases:
firstly, the 14# of the electric wire is broken:
the 14# portion of the electric wire is broken, the left side of the broken point moves to the left lower side, the right side moves to the right lower side,
the 10# traction rope swings to the left side along with the electric wire on the left side, the 11# traction rope swings to the right side along with the electric wire on the right side,
the swing arm of the No. 6 breaker moves to the left side, the right arm presses the right spring downwards,
the swing arm of the 7# breaker moves to the right side, the left arm presses the left spring downwards,
when the electric wire falls downwards, one of the two breakers is firstly disconnected with the tension rope, so that the tension rope is separated from the breakers, if the No. 6 breaker is firstly disconnected with the No. 4 tension rope,
the movable pulley moves downwards under the action of the gravity of the balancing weight,
the No. 6 breaker and the No. 8, No. 9 and No. 10 hauling ropes are folded into the No. 1 pulley block along with the No. 3 tensioning rope,
the 7# breaker and the 11#, 12# and 13# traction ropes are folded into the 2# pulley block along with the 4# and 5# tensioning ropes, finally, the electric wire is hung below the electric pole pulley block along with the traction ropes, and the balancing weight falls into the storage box to prevent the electric wire from falling;
secondly, the 15# part of the electric wire is broken:
the 15# position of the electric wire is broken, the left side electric wire moves towards the left lower part at the breaking point, the right side electric wire moves towards the right lower part,
the 10# traction rope swings to the left side along with the electric wire on the left side, the 11# traction rope swings to the right side along with the electric wire on the right side,
the swing arm of the No. 6 breaker moves to the left side, the right arm presses the right spring downwards,
the swing arm of the 7# breaker moves to the right side, the left arm presses the left spring downwards,
when the electric wire falls downwards, one of the two breakers is firstly disconnected with the tension rope, so that the tension rope is separated from the breakers, if the No. 6 breaker is firstly disconnected with the No. 4 tension rope,
the movable pulley moves downwards under the action of the gravity of the balancing weight,
the No. 6 breaker and the No. 8 and No. 10 hauling ropes are folded into the No. 1 pulley block along with the No. 3 tensioning rope,
the 7# breaker and the 11#, 12# and 13# traction ropes are folded into the 2# pulley block along with the 4# and 5# tensioning ropes,
in the folding process, the No. 4 pulling rope is connected between the electric wire on the right side of the fracture point and the No. 3 tensioning rope,
because the tensile strength of the traction rope is smaller than that of the electric wire and the tension rope, the No. 9 traction rope is broken under the action of the balancing weight, finally, the electric wire is hung below the electric pole pulley block along with the traction rope, and the balancing weight falls into the storage box to prevent the electric wire from falling;
thirdly, the 16# part of the electric wire is broken:
the 16# position of the electric wire is broken, the left side of the broken point moves towards the left lower part, the right side moves towards the right lower part,
the No. 10 pulling rope swings to the right along with the right electric wire,
the swing arm of the No. 6 breaker moves to the right side, the left arm presses the left spring downwards,
the right end of the 3# tensioning rope is separated from the left hook of the 6# breaker to separate the tensioning rope,
the movable pulley moves downwards under the action of the gravity of the balancing weight,
the 8# traction rope is folded into the 1# pulley block along with the 3# tensioning rope,
the 6# and 7# breakers and the 10#, 11#, 12# and 13# hauling ropes are folded into the 2# pulley block along with the 4# and 5# tensioning ropes,
in the furling process, the No. 9 pulling rope is connected between the electric wire on the right side of the breaking point and the No. 3 tensioning rope,
because the tensile strength of the traction rope is smaller than that of the electric wire and the tension rope, the No. 9 traction rope is broken under the action of the balancing weight, finally, the electric wire is hung below the electric pole pulley block along with the traction rope, and the balancing weight falls into the storage box to prevent the electric wire from falling;
fourthly, the tension rope breaks:
assuming that the 4# tension rope breaks or breaks away from the breaker:
the 8#, 9#, 10# traction ropes are folded towards the 1# pulley block along with the 3# tensioning rope and the 6# breaker,
the 11#, 12#, 13# traction ropes are folded towards the 2# pulley block along with the 5# tensioning rope and the 7# breaker,
before being folded, the traction rope and the electric wire are in a connected state,
in the folding process, the hauling cable and the electric wire are in a tensioning state in sequence,
because the tensile strength of the traction rope is smaller than that of the electric wire and the tension rope, the traction rope is sequentially stressed and broken under the action of the balancing weight, finally the tension rope and the breaker are folded into the pulley blocks on the two sides, and the electric wire finally returns to a normal state;
step 6: alarm of breaker
When the electric wire or the tensioning rope is broken, the tension sensor of the breaker detects that the tension strength disappears, an alarm signal is sent to the control center through the wireless communication module of the controller, the power supply of the electric wire is stopped, and maintenance personnel are dispatched to check and maintain the electric wire or the tensioning rope;
the invention has the following beneficial effects:
1. the stress of the electric wire can be reduced, and the tensile strength of the electric wire is reduced;
2. the alarm is given to power off in time after the wire is broken, so that the phenomenon of wire discharge is prevented;
3. the electric wire is timely folded after being broken, so that the electric wire is prevented from falling to the ground and personal accidents are prevented.
Drawings
The invention will be further explained with reference to the drawings and the embodiments;
FIG. 1 is a schematic view of the mounting structure of the preferred embodiment of the present invention;
fig. 2 is a schematic diagram of a circuit breaker according to a preferred embodiment of the present invention.
In the drawings:
100. pulley block, 110, cross arm, 120, static pulley, 130, movable pulley, 140, balancing weight,
200. the tension rope is used for tensioning the rope,
300. a breaker 310, a side wall 311, a left mounting hole 312, a right mounting hole 320, a bottom plate 331, a left arm 3311, a left hook 332, a right arm 3321, a right hook 333, a swing arm 341, a left spring 342, a right spring 350, a bolt 360, a controller 361, a tension sensor,
400. a rope is pulled in the rope pulling device,
500. a string bag 510, an insulator,
600. the storage box 610 and the hoop are arranged on the upper portion of the storage box,
700. pole, 710, wire;
Detailed Description
The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic views illustrating only the basic structure of the present invention in a schematic manner, and thus show only the constitution related to the present invention.
Furthermore, it should be noted that, unless otherwise specified or indicated, the terms "left", "right", "upper", "lower", and the like that may be referred to in the specification are only used for distinguishing various components, elements, steps, and the like in the specification, and are not used for indicating logical relationships or sequential relationships among the various components, elements, steps, and the like.
As shown in fig. 1, a device for preventing high voltage line from falling includes an electric wire 710 hung on the upper portion of an electric pole 700, and further includes:
a pulley block 100 suspended on the pole 700 above the wire 710, wherein the pulley block 100 comprises the following components:
a cross arm 110 fixed on the electric pole 700;
the static pulleys 120 are fixed at two ends of the cross arm 110;
a movable pulley 130 hung between the stationary pulleys 120 by a tension rope 200;
the balancing weight 140 is hung on the movable pulley 130 and tensions the tensioning rope 200;
the tensioning rope 200 is connected between the pulley blocks 100, and the tensioning rope 200 is formed by connecting steel wire ropes in series in a segmented mode, so that the service life can be effectively prolonged. The end of the tension rope 200 near the pole 700 is fixedly connected to the pole 700.
As shown in fig. 2, the interrupters 300 are uniformly distributed on the tension ropes 200 in series to divide the tension ropes 200 between the electric poles 700 into 3 segments, and the interrupters 300 may pass through the pulleys of the pulley block 100 for the purpose of better collecting the electric wires 710.
Wherein the interrupter 300 includes the following components:
a side wall 310 and a bottom plate 320 constituting a protective case of the interrupter 300;
a left mounting hole 311 and a right mounting hole 312 respectively positioned on the opposite side walls 310 of the interrupter 300;
the left arm 331, the right arm 332 and the swing arm 333 are positioned in the shell of the breaker 300, are integrally formed to form a T-shaped swing structure, the central point of the T-shaped swing structure is hinged on the shell, and the tail end of the swing arm 333 is connected with the traction rope 400;
the left hook 3311 and the right hook 3321 are respectively positioned at two ends of the left arm 331 and the right arm 332, are arranged upwards in an arc shape, and are respectively opposite to the left mounting hole 311 and the right mounting hole 312;
one end of each of the left spring 341 and the right spring 342 is fixed on the bottom plate 320, and the other end is a free end and is respectively abutted against the left arm 331 and the right arm 332;
a bolt 350 passing through the base plate 320 and the left arm 331 and threadedly coupled with the base plate 320 and the left arm 331, respectively;
a tension sensor 361 provided on the right arm 332 for detecting a tension strength between the left hook 3311 and the right hook 3321;
a controller 360 disposed within the housing, including a wireless communication module and a battery;
the tension sensor 361 is electrically connected to the controller 360.
The traction rope 400 is connected between the electric wire 710 and the interrupter 300 and between the electric wire 710 and the tensioning rope 200, the traction rope 400 is made of insulating materials and is in an unstressed straightening state in normal work, the tensile strength of the traction rope 400 is smaller than that of the tensioning rope 200, and an insulator 510 is arranged between the traction rope 400 and the electric wire 710;
the net bag 500 is hung between the electric poles 700 below the electric wires 710, the net bag 500 is connected to the ground through a wire, the main body of the net bag 500 is made of a conductive material or can be woven by nylon ropes with wires, the net bag 500 is connected with the ground through the wire to avoid forming a high potential, and the net bag 500 is in insulation connection with the electric poles 700 through the insulators 510, so that certain insulation requirements can be met after normal operation and the electric wires 710 are disconnected;
the storage box 600 is fixed on the electric pole 700 through the hoop 610, the storage box 600 is overlapped with the balancing weight 140 along the direction of the electric pole 700, and the balancing weight 140 falls into the storage box 600 after falling;
further, a solar panel is disposed on the outer side of the breaker 300 facing the sun, and the solar panel is electrically connected to the controller 360.
Further, in order to better understand the invention, the use method of the invention is also provided, and the use method comprises the following steps:
step 1: installation of the interrupter 300
Firstly, taking down the balancing weight 140 of the pulley block 100, detaching the bolt 350 of the breaker 300, hanging the tensioning rope 200 on the left hook 3311 and the right hook 3321 of the breaker 300 through the left mounting hole 311 and the right mounting hole 312, screwing back the bolt 350, making the left arm 331 and the right arm 332 unable to swing, preventing the tensioning rope 200 from falling off in advance, then hanging the balancing weight 140 on the movable pulley 130, tensioning the tensioning rope 200, and finally taking down the bolt 350;
step 2: the hanging of the hauling rope 400
The plurality of traction ropes 400 are arranged, two traction ropes 400 are hung on the swing arms 333 of the 2 breakers 300 respectively, the other ends of the traction ropes are connected with the electric wires 710, the rest traction ropes 400 are divided into two groups and symmetrically installed, one ends of the traction ropes 400 are hung on the tensioning ropes 200 between the breakers 300 and the pulley block 100, and the other ends of the traction ropes 400 are connected to the electric wires 710 in a distributed manner;
and step 3: hanging net bag 500
The net bag 500 is hung below the electric wires 710 between the electric poles 700, and the net bag 500 can hold the electric wires 710 after the electric wires 710 fall;
and 4, step 4: mounting of the receiving case 600
The storage box 600 is mounted on the electric pole 700 through the hoop 610, and the position of the storage box 600 is adjusted, so that the clump weight 140 can fall into the storage box 600 after falling;
and 5: working process
When the solar energy electric power generation device is in normal use, the traction rope 400 is naturally stressed and connected with the wire 710, the solar panel generates electricity in the daytime, power is supplied through the controller 360-phase battery, and the tension sensor 361 is guaranteed to be in a normal working state at any time;
during use, there are mainly 4 fracture cases:
first, the wire 710 is broken at 14 #:
the wire 710 is broken at 14#, the left wire 710 moves to the left and downward, the right wire 710 moves to the right and downward,
the 10# traction rope 400 swings to the left with the wire 710 on the left side, the 11# traction rope 400 swings to the right with the wire 710 on the right side,
the swing arm 333 of the # 6 interruptor 300 moves to the left, the right arm 332 presses the right spring 342 downward,
the swing arm 333 of the 7# interrupter 300 moves to the right, the left arm 331 presses the left spring 341 downward,
when the electric wire 710 drops downward, one of the two interrupters 300 is first disconnected from the tension rope 200, so that the tension rope 200 is separated from the interrupter 300, assuming that the 6# interrupter 300 is first disconnected from the 4# tension rope 200,
the movable sheave 130 moves downward by the weight of the weight block 140,
the No. 6 breaker 300 and the No. 8, No. 9 and No. 10 traction ropes 400 are folded into the No. 1 pulley block 100 along with the No. 3 tensioning rope 200,
the 7# breaker 300, the 11#, 12# and 13# traction ropes 400 are gathered into the 2# pulley block 100 along with the 4# and 5# tensioning ropes 200, finally the electric wires 710 are hung below the electric pole 700 pulley block 100 along with the traction ropes 400, and the balancing weight 140 falls into the storage box 600 to prevent falling;
second, the 15# of the electric wire 710 is broken:
the wire 710 is broken at 15#, the left wire 710 moves to the left and downward, the right wire 710 moves to the right and downward,
the 10# traction rope 400 swings to the left with the wire 710 on the left side, the 11# traction rope 400 swings to the right with the wire 710 on the right side,
the swing arm 333 of the # 6 interruptor 300 moves to the left, the right arm 332 presses the right spring 342 downward,
the swing arm 333 of the 7# interrupter 300 moves to the right, the left arm 331 presses the left spring 341 downward,
when the electric wire 710 drops downward, one of the two interrupters 300 is first disconnected from the tension rope 200, so that the tension rope 200 is separated from the interrupter 300, assuming that the 6# interrupter 300 is first disconnected from the 4# tension rope 200,
the movable sheave 130 moves downward by the weight of the weight block 140,
the No. 6 breaker 300 and the No. 8 and No. 10 traction ropes 400 are folded into the No. 1 pulley block 100 along with the No. 3 tensioning rope 200,
the 7# breaker 300 and the 11#, 12# and 13# traction ropes 400 are folded into the 2# pulley block 100 along with the 4# and 5# tensioning ropes 200,
in the furling process, the 4# traction rope 400 is connected between the wire 710 at the right side of the breaking point and the 3# tension rope 200,
because the tensile strength of the traction rope 400 is smaller than the tensile strength of the electric wire 710 and the tension rope 200, the 9# traction rope 400 is broken under the action of the balancing weight 140, finally, the electric wire 710 is hung below the electric pole 700 pulley block 100 along with the traction rope 400, and the balancing weight 140 falls into the storage box 600 to prevent falling;
third, the 16# of the electric wire 710 is broken:
the wire 710 is broken at 16#, the left wire 710 moves to the left and downward, the right wire 710 moves to the right and downward,
the # 10 pull-cord 400 swings to the right with the right cord 710,
the swing arm 333 of the # 6 interruptor 300 moves to the right, the left arm 331 presses the left spring 341 downward,
the right end of the 3# tension rope 200 is separated from the left hook 3311 of the 6# breaker 300, so that the tension rope 200 is separated,
the movable sheave 130 moves downward by the weight of the weight block 140,
the 8# traction rope 400 is folded into the 1# pulley block 100 along with the 3# tension rope 200,
the 6#, 7# breakers 300 and the 10#, 11#, 12#, 13# traction ropes 400 are folded into the 2# pulley block 100 along with the 4# and 5# tensioning ropes 200,
during the furling process, the No. 9 pulling rope 400 is connected between the wire 710 at the right side of the breaking point and the No. 3 tensioning rope 200,
because the tensile strength of the traction rope 400 is smaller than the tensile strength of the electric wire 710 and the tension rope 200, the 9# traction rope 400 is broken under the action of the balancing weight 140, finally, the electric wire 710 is hung below the electric pole 700 pulley block 100 along with the traction rope 400, and the balancing weight 140 falls into the storage box 600 to prevent falling;
fourthly, the tension rope 200 is broken:
assuming that the 4# tension rope 200 is broken or separated from the breaker 300:
the 8#, 9#, 10# traction ropes 400 are folded towards the 1# pulley block 100 along with the 3# tensioning ropes 200 and the 6# breaker 300,
the 11#, 12#, 13# traction ropes 400 are folded towards the 2# pulley block 100 along with the 5# tensioning ropes 200 and the 7# breaker 300,
before being folded, the hauling cable 400 and the electric wire 710 are in a connecting state,
in the folding process, the pulling rope 400 and the electric wire 710 are in a tensioning state in sequence,
because the tensile strength of the pulling rope 400 is less than the tensile strength of the electric wire 710 and the tensioning rope 200, the pulling rope 400 is sequentially stressed and broken under the action of the counterweight block 140, finally the tensioning rope 200 and the breaker 300 are folded into the pulley blocks 100 on the two sides, and the electric wire 710 finally returns to a normal state;
step 6: interrupter 300 alarm
When the wire 710 or the tension rope 200 is broken, the tension sensor 361 of the breaker 300 detects that the tension strength disappears, and sends an alarm signal to the control center through the wireless communication module of the controller 360, so that the power supply of the wire 710 is stopped, and maintenance personnel are dispatched to check and maintain the wire;
in summary, the present invention is only a preferred embodiment, and is not intended to limit the scope of the present invention, and various changes and modifications can be made by workers in the light of the above description without departing from the technical spirit of the present invention. The technical scope of the present invention is not limited to the content of the specification, and all equivalent changes and modifications in the shape, structure, characteristics and spirit described in the scope of the claims of the present invention are included in the scope of the claims of the present invention.

Claims (8)

1. The utility model provides a prevent high-voltage line device that falls, includes electric wire (710), hangs and establishes on pole (700) upper portion, its characterized in that:
also comprises
The pulley block (100) is hung on the electric pole (700) above the electric wire (710);
the tensioning rope (200) is connected between the pulley blocks (100);
the breakers (300) are uniformly distributed on the tensioning ropes (200) in series, the tensioning ropes (200) between the electric poles (700) are divided into 3 sections, and the end parts, close to the electric poles (700), of the tensioning ropes (200) are fixedly connected with the electric poles (700);
a pulling rope (400) connected between the electric wire (710) and the interrupter (300) and between the electric wire (710) and the tension rope (200);
the net bag (500) is hung between the electric poles (700) below the electric wires (710), and the net bag (500) is connected to the ground through a lead;
the storage box (600) is fixed on the electric pole (700) through a hoop (610);
the pulley block (100) comprises
A cross arm (110) fixed to the electric pole (700);
a static pulley (120) fixed at both ends of the cross arm (110),
a movable pulley (130) hung between the static pulleys (120) through a tension rope (200),
the balancing weight (140) is hung on the movable pulley (130) and tensions the tensioning rope (200);
the interrupter (300) comprises
A side wall (310) and a bottom plate (320) which form a protective housing of the interrupter (300);
the left mounting hole (311) and the right mounting hole (312) are respectively positioned on two opposite side walls (310) of the breaker (300);
the left arm (331), the right arm (332) and the swing arm (333) are positioned in the shell of the breaker (300), are integrally formed to form a T-shaped swing structure, the central point of the T-shaped swing structure is hinged on the shell, and the tail end of the swing arm (333) is connected with the traction rope (400);
the left hook (3311) and the right hook (3321) are respectively positioned at two ends of the left arm (331) and the right arm (332), are upwards arranged in an arc shape, and are respectively opposite to the left mounting hole (311) and the right mounting hole (312);
one end of the left spring (341) and one end of the right spring (342) are fixed on the bottom plate (320), and the other end is a free end and is respectively abutted against the left arm (331) and the right arm (332);
the bolt (350) penetrates through the bottom plate (320) and the left arm (331) and is in threaded connection with the bottom plate (320) and the left arm (331) respectively;
the tension sensor (361) is arranged on the right arm (332) and used for detecting the tension strength between the left hook (3311) and the right hook (3321);
a controller (360) disposed within the housing, including a wireless communication module and a battery;
the tension sensor (361) is electrically connected with the controller (360).
2. The high voltage line fall prevention device as claimed in claim 1, wherein:
the tensioning rope (200) is a steel wire rope, and the divided tensioning rope (200) is hung on the left hook (3311) and the right hook (3321).
3. The high voltage line fall prevention device as claimed in claim 1, wherein:
the breaker (300) can pass through the pulley of the pulley block (100).
4. The high voltage line fall prevention device as claimed in claim 1, wherein:
the haulage rope (400) comprises insulating material, is in the unstressed state during normal work, and the tensile strength of haulage rope (400) is less than the tensile strength of tensioning rope (200).
5. The high voltage line fall prevention device as claimed in claim 1, wherein:
string bag (500) main part constitutes for electrically conductive material, is connected through wire and ground, and string bag (500) carry out the insulation through insulator (510) and pole (700) and are connected.
6. The high voltage line fall prevention device as claimed in claim 1, wherein:
the storage box (600) is overlapped with the balancing weight (140) along the direction of the electric pole (700), and the balancing weight (140) falls into the storage box (600) after falling.
7. The high voltage line fall prevention device as claimed in claim 1, wherein:
the solar panel is arranged on the sunny side of the outer side of the breaker (300) and is electrically connected with the controller (360).
8. The use method of the high-voltage wire falling prevention device according to claim 1, comprising the following steps:
step 1: installation of the interrupter (300)
Firstly, a balancing weight (140) of a pulley block (100) is taken down, a bolt (350) of a breaker (300) is disassembled, a tensioning rope (200) passes through a left mounting hole (311) and a right mounting hole (312) and is hung on a left hook (3311) and a right hook (3321) of the breaker (300), then the bolt (350) is screwed back, a left arm (331) and a right arm (332) cannot swing, the tensioning rope (200) is prevented from falling off in advance, then the balancing weight (140) is hung on a movable pulley (130), the tensioning rope (200) is tensioned, and finally the bolt (350) is taken down;
step 2: the traction rope (400) is hung
The traction ropes (400) are provided with a plurality of ropes, two of the ropes (400) are hung on the swing arms (333) of the 2 breaker (300) respectively, the other ends of the ropes are connected with the electric wires (710), the other traction ropes (400) are divided into two groups and symmetrically installed, one end of each rope (400) is hung on the tensioning rope (200) between the breaker (300) and the pulley block (100), and the other ends of the ropes are connected to the electric wires (710) in a distributed mode;
and step 3: hanging of the net bag (500)
The net bag (500) is hung below the electric wire (710) between the electric poles (700), and the net bag (500) can hold the electric wire (710) after the electric wire (710) falls;
and 4, step 4: mounting of storage box (600)
The storage box (600) is mounted on the electric pole (700) through the hoop (610), the position of the storage box (600) is adjusted, and the counter weight (140) can fall into the storage box (600) after falling;
and 5: working process
When the solar panel is normally used, the traction rope (400) is naturally stressed and connected with the wire (710), the solar panel generates electricity in the daytime, and the tension sensor (361) is ensured to be in a normal working state at any time by the power supply of the controller (360) and the battery;
during use, there are 4 fracture cases:
firstly, the 14# position of the electric wire (710) is broken:
the 14# part of the electric wire (710) is broken, the left electric wire (710) moves to the left and down, the right electric wire (710) moves to the right and down,
the 10# traction rope (400) swings to the left along with the wire (710) on the left side, the 11# traction rope (400) swings to the right along with the wire (710) on the right side,
the swing arm (333) of the No. 6 breaker (300) moves to the left side, the right arm (332) presses the right spring (342) downwards,
the swing arm (333) of the 7# breaker (300) moves to the right side, the left arm (331) presses the left spring (341) downwards,
when the electric wire (710) falls downwards, one of the two breakers (300) is firstly disconnected with the tension rope (200) to separate the tension rope (200) from the breaker (300), if the No. 6 breaker (300) is firstly disconnected with the No. 4 tension rope (200),
the movable pulley (130) moves downwards under the action of the gravity of the balancing weight (140),
the No. 6 breaker (300) and the No. 8, No. 9 and No. 10 traction ropes (400) are folded into the No. 1 pulley block (100) along with the No. 3 tensioning rope (200),
the 7# breaker (300) and the 11#, 12#, 13# traction ropes (400) are folded into the 2# pulley block (100) along with the 4# and 5# tensioning ropes (200), finally, the electric wire (710) is hung below the pulley block (100) of the electric pole (700) along with the traction ropes (400), and the balancing weight (140) falls into the storage box (600) to prevent falling;
II, breaking occurs at the 15# position of the electric wire (710):
the wire (710) is broken at the 15# position, the left wire (710) moves to the left and the right wire (710) moves to the right and downward at the breaking point,
the 10# traction rope (400) swings to the left along with the wire (710) on the left side, the 11# traction rope (400) swings to the right along with the wire (710) on the right side,
the swing arm (333) of the No. 6 breaker (300) moves to the left side, the right arm (332) presses the right spring (342) downwards,
the swing arm (333) of the 7# breaker (300) moves to the right side, the left arm (331) presses the left spring (341) downwards,
when the electric wire (710) falls downwards, one of the two breakers (300) is firstly disconnected with the tension rope (200) to separate the tension rope (200) from the breaker (300), if the No. 6 breaker (300) is firstly disconnected with the No. 4 tension rope (200),
the movable pulley (130) moves downwards under the action of the gravity of the balancing weight (140),
the No. 6 breaker (300) and the No. 8 and No. 10 traction ropes (400) are folded into the No. 1 pulley block (100) along with the No. 3 tensioning rope (200),
the 7# breaker (300) and the 11#, 12# and 13# traction ropes (400) are folded into the 2# pulley block (100) along with the 4# and 5# tensioning ropes (200),
in the furling process, the No. 4 pulling rope (400) is connected between the electric wire (710) at the right side of the breaking point and the No. 3 tensioning rope (200),
because the tensile strength of the traction rope (400) is smaller than the tensile strength of the electric wire (710) and the tension rope (200), the 9# traction rope (400) is broken under the action of the balancing weight (140), finally, the electric wire (710) is hung below the pulley block (100) of the electric pole (700) along with the traction rope (400), and the balancing weight (140) falls into the storage box (600) to prevent falling;
thirdly, the 16# part of the electric wire (710) is broken:
the 16# part of the electric wire (710) is broken, the left electric wire (710) moves to the left and down, the right electric wire (710) moves to the right and down,
the 10# traction rope (400) swings to the right along with the right electric wire (710),
the swing arm (333) of the No. 6 breaker (300) moves to the right side, the left arm (331) presses the left spring (341) downwards,
the right end of the 3# tension rope (200) is separated from the left hook (3311) of the 6# breaker (300) to separate the tension rope (200),
the movable pulley (130) moves downwards under the action of the gravity of the balancing weight (140),
the 8# traction rope (400) is folded into the 1# pulley block (100) along with the 3# tensioning rope (200),
the 6#, 7# breakers (300) and the 10#, 11#, 12#, 13# traction ropes (400) are folded into the 2# pulley block (100) along with the 4# and 5# tensioning ropes (200),
in the furling process, the No. 9 pulling rope (400) is connected between the electric wire (710) at the right side of the breaking point and the No. 3 tensioning rope (200),
because the tensile strength of the traction rope (400) is smaller than the tensile strength of the electric wire (710) and the tension rope (200), the 9# traction rope (400) is broken under the action of the balancing weight (140), finally, the electric wire (710) is hung below the pulley block (100) of the electric pole (700) along with the traction rope (400), and the balancing weight (140) falls into the storage box (600) to prevent falling;
fourthly, the tension rope (200) is broken:
assuming that the No. 4 tensioning rope (200) breaks or is separated from the breaker (300):
the 8#, 9#, 10# traction ropes (400) are folded towards the 1# pulley block (100) along with the 3# tensioning rope (200) and the 6# breaker (300),
the 11#, 12#, 13# traction ropes (400) are folded towards the 2# pulley block (100) along with the 5# tensioning rope (200) and the 7# breaker (300),
before being folded, the traction rope (400) and the electric wire (710) are in a connection state,
in the folding process, the traction rope (400) and the electric wire (710) are in a tensioning state in sequence,
because the tensile strength of the traction rope (400) is smaller than the tensile strength of the electric wire (710) and the tension rope (200), the traction rope (400) is sequentially stressed and broken under the action of the balancing weight (140), finally, the tension rope (200) and the breaker (300) are folded into the pulley blocks (100) on the two sides, and the electric wire (710) finally returns to a normal state;
step 6: interrupter (300) alarm
When the electric wire (710) or the tensioning rope (200) breaks, the tension sensor (361) of the breaker (300) detects that the tension strength disappears, an alarm signal is sent to the control center through the wireless communication module of the controller (360), the electric wire (710) is stopped to supply power, and maintenance personnel are dispatched to check and maintain.
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CN111917052B (en) * 2020-07-06 2021-11-02 贵州电网有限责任公司 Crossing network remote control net sealing device
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