CN210829048U - Special ladder for jumper maintenance of 110kV-220kV strain tower - Google Patents

Special ladder for jumper maintenance of 110kV-220kV strain tower Download PDF

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Publication number
CN210829048U
CN210829048U CN201921210835.4U CN201921210835U CN210829048U CN 210829048 U CN210829048 U CN 210829048U CN 201921210835 U CN201921210835 U CN 201921210835U CN 210829048 U CN210829048 U CN 210829048U
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China
Prior art keywords
ladder
ladder body
screw
couple
anticreep
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Active
Application number
CN201921210835.4U
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Chinese (zh)
Inventor
张祥华
马存涛
马文臣
徐东生
张�林
朱宗勇
蒋志浩
李荣德
姬广文
王东东
陈国成
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
State Grid Corp of China SGCC
TaiAn Power Supply Co of State Grid Shandong Electric Power Co Ltd
Original Assignee
State Grid Corp of China SGCC
TaiAn Power Supply Co of State Grid Shandong Electric Power Co Ltd
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Application filed by State Grid Corp of China SGCC, TaiAn Power Supply Co of State Grid Shandong Electric Power Co Ltd filed Critical State Grid Corp of China SGCC
Priority to CN201921210835.4U priority Critical patent/CN210829048U/en
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Publication of CN210829048U publication Critical patent/CN210829048U/en
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Abstract

The utility model provides a special ladder of 110kV-220kV strain insulator shaft tower wire jumper maintenance, including the ladder body, the ladder body is connected by upper portion ladder body, lower part ladder body and bullet round pin and is constituteed, through bullet round pin articulate between upper portion ladder body and the lower part ladder body, ladder head couple is installed to ladder body top, is connected through rotatory locking mechanism between ladder head couple and the ladder body, is equipped with the folding seat of detachable on the ladder body, and folding seat can be followed ladder body and adjusted from top to bottom, and folding seat one side is equipped with the bottom couple. The tool has the characteristics of light weight, convenience in carrying, strong applicability, simplicity and convenience in operation and the like, simplifies the operation steps, enables the tool to be stable and reliable in the climbing and operation processes, facilitates the up-and-down wire jumping and maintenance operation of operators, and reduces the operation time.

Description

Special ladder for jumper maintenance of 110kV-220kV strain tower
Technical Field
The utility model belongs to electric power overhauls the equipment field, specifically speaking is a special ladder of 110kV-220kV strain insulator shaft tower wire jumper maintenance.
Background
Jumper wires of 110kV to 220kV strain towers and series hardware thereof are often used as key overhaul objects for overhaul work such as stringing of transmission lines, windage yaw prevention treatment, defect elimination and the like. The conventional repair method includes: a jump line lifting method and a traction ladder head method.
The jumper lifting method is high in labor intensity and the cross arm seriously abrades the jumper; the special ladder for jumper maintenance is not used in the traction ladder head method, so that operating personnel can twist and easily get tired in the operating process due to the fact that the operating personnel do not have the special ladder for jumper maintenance, the labor intensity is high, the ladder head can be kept near equipment to be maintained by always traction of ground personnel, the safety factor is low, and tools are heavy and are not easy to carry.
The traditional operation method is complex, operation personnel are inconvenient to operate due to the influence of the lengths of the protection rope and the safety belt, meanwhile, the jumper wire is not fixed below the jumper wire, so that the jumper wire is large in shaking, the operator needs to spend more time and energy, and certain safety risks exist.
SUMMERY OF THE UTILITY MODEL
The utility model provides a special ladder of 110kV-220kV strain insulator shaft tower wire jumper maintenance for solve the wire jumper maintenance process among the prior art and waste time and energy and unsafe problem, reach and overhaul the high, the high beneficial effect of maintenance efficiency of security.
The utility model discloses a following technical scheme realizes:
110kV-220kV strain insulator shaft tower wire jumper overhauls special ladder, including the ladder body, the ladder body comprises upper portion ladder body, lower part ladder body and bullet pin joint, connects through bullet pin joint between upper portion ladder body and the lower part ladder body, and ladder head couple is installed to ladder body top, is connected through rotatory locking mechanical system between ladder head couple and the ladder body, is equipped with detachable folding seat on the ladder body, and folding seat can be followed ladder body and adjusted from top to bottom, and folding seat one side is equipped with the bottom couple.
110kV-220kV strain insulator shaft tower wire jumper overhaul special ladder, the first couple coupler body extension of anticreep ladder widen the design, anticreep ladder head couple cross-section all is equipped with the coupler body for U type and left and right sides, the through-hole is seted up respectively to the first couple rear portion left and right sides of anticreep ladder, first screw is seted up respectively to the preceding left and right sides of anticreep ladder head couple, lie in and be equipped with first bolt jointly in the through-hole and the first screw with one side, first bolt can with the first screw thread fit that corresponds. The anti-drop ladder head hook is connected with the cross arm, so that the anti-drop ladder head hook can prevent unhooking, guarantee maintenance safety and adapt to tower materials with different widths on the cross arm.
As above special ladder of 110kV-220kV strain tower jumper overhaul, rotary locking mechanism includes the second screw, the second bolt, a fixture, a clamping groove and a fixture block, the lower end of the anti-falling ladder head hook is of a tubular structure, the upper end of the ladder body can be inserted into the lower end of the anti-falling ladder head hook, and the joint between the two is connected through a bearing, the second screw is opened on one side of the lower end of the anti-falling ladder head hook, the second bolt is arranged in the second screw, the second bolt is in thread fit with the second screw, the fixture is fixedly installed on one end of the second bolt, the fixture is of a cuboid structure, one side of the fixture is provided with a clamping groove, the clamping groove is a hemispherical groove, the hemispherical fixture block is fixedly installed on the periphery of the upper end of. The clamping groove is matched with the corresponding clamping block, the angle of the ladder body after being fixedly adjusted is firm, the adverse effect caused by rotation of the ladder body in the using process is avoided, and the ladder is convenient to use and high in safety.
As the special 110kV-220kV strain tower jumper wire overhaul ladder, the ladder body adopts a centipede ladder structure, the ladder rods are distributed in a staggered mode, and the ladder rods are provided with anti-skid layers. The ladder body adopts centipede ladder structure and the crisscross distribution of ladder pole, can reduce manufacturing raw materials and do not influence the result of use, and the skid resistant course can avoid the sole to skid in addition, improves the security of using.
As above special ladder of 110kV-220kV strain insulator shaft tower wire jumper maintenance, folding seat include adapter sleeve, montant, torsional spring, the chair body, flexible bracing piece, ladder body lower extreme periphery is equipped with two adapter sleeves, the common fixed mounting montant in adapter sleeve right side, montant upper end right side is equipped with the chair body of L type, the chair body upper end is arc structure and convex surface left, pass through torsional spring coupling between montant upper end and the chair body left end, the articulated expansion end of connecting flexible bracing piece in chair body bottom surface, the stiff end and the articulated connection in downside adapter sleeve right side of flexible bracing piece. The folding seat can reduce the occupied space, is convenient to transport, and is favorable for the up-and-down transmission of the tool in the maintenance construction process.
As the special 110kV-220kV strain tower jumper wire overhaul ladder, the ladder body is detachably connected with the folding seat, the front side and the rear side of the connecting sleeve are respectively provided with the third screw holes, the front side and the rear side of the lower end of the ladder body are respectively provided with the fourth screw holes uniformly distributed, and the third screw holes and the corresponding fourth screw holes are internally provided with the third bolts through common threads. The third bolt is in threaded fit with the corresponding third screw hole and the fourth screw hole, so that the position of the folding seat is fixed, and the folding seat is convenient to use.
The special 110kV-220kV tension tower jumper overhaul ladder is characterized in that the ladder body is made of epoxy tubes. The epoxy pipe can satisfy the user demand of ladder body, convenient to use.
The utility model has the advantages that: the tool has the characteristics of light weight, convenience in carrying, strong applicability, simplicity and convenience in operation and the like, simplifies the operation steps, enables the tool to be stable and reliable in the climbing and operation processes, facilitates the up-and-down wire jumping and maintenance operation of operators, and reduces the operation time.
The special ladder for overhauling and constructing the 110kV-220kV strain tower jumper, the jumper insulator and the hardware fitting of the jumper insulator improves the comfort level of operators on the ladder, reduces the labor intensity and the quantity of the operators, overcomes the difficulty that the postures of the operators are distorted and easy to fatigue in the working process, saves the link of pulling the ladder head all the time of ground personnel, improves the working efficiency, shortens the power failure operation time, and simultaneously improves the safety coefficient of the operators on the tower. The tool is easy to manufacture, extremely low in maintenance cost, long in service cycle and suitable for popularization and use.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic structural view of the utility model in use; FIG. 2 is a right side view of FIG. 1; FIG. 3 is an enlarged view of section I of FIG. 1; fig. 4 is a partial enlarged view of ii of fig. 2.
In the figure, a ladder body 1, an anti-falling ladder head hook 2, a rotary locking mechanism 3, a folding seat 4, a bottom hook 5, a through hole 6, a first screw hole 7, a first bolt 8, a second screw hole 9, a second bolt 10, a fixture 11, a clamping groove 12, a clamping block 13, a connecting sleeve 14, a vertical rod 15, a torsion spring 16, a chair body 17, a telescopic supporting rod 18, a third screw hole 19, a fourth screw hole 20 and a third bolt 21.
Detailed Description
In order to make the technical solutions in the present invention better understood, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, but not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts shall belong to the protection scope of the present invention.
110kV-220kV strain insulator shaft tower wire jumper overhauls special ladder, as shown in the figure, including terraced body 1, terraced body 1 is by upper portion terraced body, lower part terraced body and bullet pin joint are constituteed, through bullet pin articulate between terraced body of upper portion and the lower part terraced body, terraced head couple 2 of anticreep is installed to 1 top of terraced body, connect through rotatory locking mechanical system 3 between terraced head couple 2 of anticreep and the terraced body 1, be equipped with detachable folding seat 4 on the terraced body 1, folding seat 4 can be followed terraced body 1 and adjusted from top to bottom, folding seat 4 one side is equipped with bottom couple 5. When the utility model is used, firstly, after the ladder body 1 is firmly connected through the elastic pin joint by the ground operating personnel, the folding seat 4 is adjusted to a proper position and locked, the ground operating personnel tie a guide rope at the bottom of the ladder body and transmit the special ladder to the operating personnel on the tower by using a transmission rope; after receiving the tool, the operator on the tower adjusts the rotary locking mechanism 2 to ensure that the folding seat 4 of the special ladder is over against the equipment to be overhauled and locked; operating personnel removes ladder body 1 on the tower, make bottom couple 5 hang on the jumper wire, make 1 lower extreme of ladder body have the fixed point, the jumper wire is avoided rocking when overhauing jumper wire insulator and jumper wire circuit, guarantee to overhaul safety, simultaneously, do not need ground staff to pull, reduce operating personnel quantity, operating personnel hangs anticreep ladder head couple 2 suitable position on cross arm tower material on the tower after that, the inspection is fixed after firm, after this device installation, operating personnel removes to folding seat 4 departments and sits on the chair along ladder body 1 on the tower, begin subsequent maintenance change operation. The tool has the characteristics of light weight, convenience in carrying, strong applicability, simplicity and convenience in operation and the like, simplifies the operation steps, enables the tool to be stable and reliable in the climbing and operating processes, facilitates the up-and-down wire jumping and maintenance operation of operating personnel, and reduces the operation time; the tool is used as a special ladder for overhauling and constructing 110kV-220kV strain pole tower jumper wires, jumper wire insulators and hardware fittings thereof, the comfort level of operators on the ladder is improved, the labor intensity and the number of the operators are reduced, the difficulty that the operators are easy to fatigue due to posture distortion in the working process is overcome, the link of ground personnel for always pulling the ladder head is omitted, the working efficiency is improved, the power failure operation time is shortened, and the safety coefficient of the operators on the tower is improved; the tool is easy to manufacture, extremely low in maintenance cost, long in service cycle and suitable for popularization and use.
Wherein, first couple 2 of anticreep ladder can fix the cross arm of ladder body 1 upper end above the jumper insulator, but have the condition of tower material width difference and unhook, 2 coupler body extension of first couple of anticreep ladder widen the design, 2 cross-sections of first couple of anticreep ladder all are equipped with the coupler body for U type and left and right sides, through-hole 6 is seted up respectively to the 2 rear portion left and right sides of first couple of anticreep ladder, first screw 7 is seted up respectively to the preceding left and right sides of first couple of anticreep ladder 2, lies in to be equipped with first bolt 8 in through-hole 6 and the first screw 7 with one side jointly, first bolt 8 can with the 7 screw-thread fit of first screw that correspond. The workman hangs anticreep ladder head couple 2 on the cross arm, in inserting through-hole 6 and first screw 7 with first bolt 8 after that, rotates first bolt 8 for first bolt 8 and 7 screw-thread fit of first screw, thereby link together anticreep ladder head couple 2 and cross arm, not only can prevent the unhook, guarantee to overhaul safety, can also adapt to the tower material of different widths on the cross arm.
Wherein, the ladder body 1 can be rotated freely and locked by rotating the locking mechanism 3, the folding seat 4 is always opposite to the jumper equipment to be overhauled, rotatory locking mechanical system 3 includes second screw 9, second bolt 10, fixture 11, draw-in groove 12 and fixture block 13, 2 lower extremes of anticreep ladder head couple are tubular structure, 2 lower extremes of anticreep ladder head couple can be inserted in 2 lower extremes of anticreep ladder head couple and junction between them passes through the bearing and connects in the upper end of ladder body, second screw 9 is seted up to 2 lower extreme one sides of anticreep ladder head couple, be equipped with second bolt 10 in the second screw 9, second bolt 10 and 9 screw-thread fit of second screw, 10 one end fixed mounting fixture 11 of second bolt, fixture 11 is the cuboid structure, 11 fixture one side is equipped with draw-in groove 12, draw-in groove 12 is the hemisphere recess, 1 upper end periphery fixed mounting several evenly distributed's hemisphere fixture block 13 of ladder body, draw-in groove 12 can cooperate with fixture block 13. The workman will prevent that ladder head couple 2 from installing back on the cross arm, position according to maintenance equipment's position adjustment folding seat chair 4, the workman rotates second bolt 10 earlier, second bolt 10 is along 9 swivelling movements of second screw, second bolt 10 removes and drives fixture 11 and remove, make draw-in groove 12 and fixture block 13 separation, the workman rotates ladder body 1 after that, it is corresponding with the position of waiting to overhaul to make folding seat chair 4, after that antiport second bolt 10, it cooperatees with the fixture block 13 that corresponds to make draw-in groove 12 move through second bolt 10, with this fixed 1 angle of ladder body after adjusting, it is fixed firm, avoid the adverse effect that ladder body 1 rotates and brings in the use, facilitate the use and the security is high.
The workman reciprocates at ladder body 1 to overhaul, ladder body 1 adopt centipede ladder structure and ladder pole crisscross distribution, all be equipped with the skid resistant course on the ladder pole. Ladder body 1 adopts centipede ladder structure and the crisscross distribution of ladder pole, can reduce manufacturing raw materials and do not influence the result of use, and the skid resistant course can avoid the sole to skid in addition, improves the security of using.
Folding seat 4 can reduce occupation space, not only convenient transportation, the upper and lower transmission of this instrument in still being favorable to overhauing the work progress, folding seat include adapter sleeve 14, montant 15, torsional spring 16, the chair body 17, flexible bracing piece 18, 1 lower extreme periphery of ladder body is equipped with two adapter sleeves 14, the common fixed mounting montant 15 in adapter sleeve 14 right side, the chair body 17 of L type is equipped with on montant 15 upper end right side, chair body 17 upper end is arc structure and convex surface left, be connected through torsional spring 16 between 15 upper ends of montant and the chair body 17 left end, the articulated expansion end of connecting flexible bracing piece 18 in chair body 17 bottom surface, the stiff end and the articulated connection in downside adapter sleeve 14 right side of flexible bracing piece 18. When the folding chair is used, a worker moves downwards, hands and feet are placed on the ladder body 1, the hip is located at the arc-shaped structure of the chair body 17, the hip continues to move downwards to enable the chair body 17 to be opened due to the fact that the force applied to the chair body 17 in the rightward direction enables the chair body 17 to be opened, the chair body 17 is changed from the vertical state to the horizontal state, the worker can directly sit on the chair body 17, the worker leaves the chair body 17 after the use is finished, the chair body 17 is attached to the ladder body 1 under the action of the torsion spring 16, the folding chair is automatically folded to the original state, occupied space can be reduced, and the folding.
Folding seat 4 can be followed ladder body 1 and adjusted from top to bottom to satisfy the distance requirement of different voltage classes and wire jumper arc, ladder body 1 be connected for dismantling with folding seat 4, third screw 19 is seted up respectively to both sides around the adapter sleeve 14, both sides are equipped with several evenly distributed's fourth screw 20 respectively around the ladder body 1 lower extreme, common screw thread installation third bolt 21 in third screw 19 and the fourth screw 20 that corresponds. A worker removes the third bolt 21 from the third screw hole 19 and the corresponding fourth screw hole 2, moves the connecting sleeve 14 up and down to a proper position along the ladder body 1, and then matches the third bolt 21 with the corresponding third screw hole 19 and the fourth screw hole 20 in a threaded manner, so that the position of the folding seat 4 is fixed, and the use is convenient.
In practical use, the ladder body 1 needs to have good supporting strength and insulation, and the ladder body 1 is made of epoxy tubes. Ladder body 1 adopts the preparation of epoxy pipe, and the epoxy pipe is fit for using as insulation system, consequently can satisfy ladder body 1's user demand, convenient to use.
Although the present invention has been described in detail by referring to the drawings in conjunction with the preferred embodiments, the present invention is not limited thereto. Various equivalent modifications or substitutions can be made on the embodiments of the present invention by those skilled in the art without departing from the spirit and substance of the present invention, and these modifications or substitutions are intended to be within the scope of the present invention/any person skilled in the art can easily conceive of changes or substitutions within the technical scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims (7)

1.110kV-220kV strain insulator shaft tower wire jumper overhauls special ladder, its characterized in that: ladder body (1), ladder body (1) is by upper portion ladder body, lower part ladder body and bullet pin joint are constituteed, connect through bullet pin joint between upper portion ladder body and the lower part ladder body, ladder body (1) top is installed and is gone out first couple (2) of anticreep ladder, be connected through rotatory locking mechanical system (3) between first couple (2) of anticreep ladder and the ladder body (1), be equipped with detachable folding seat chair (4) on ladder body (1), folding seat chair (4) can be followed ladder body (1) and adjusted from top to bottom, folding seat chair (4) one side is equipped with bottom couple (5).
2. The special 110kV-220kV tension tower jumper overhaul ladder as claimed in claim 1, characterized in that: first couple of anticreep ladder (2) coupler body extension widen the design, first couple of anticreep ladder (2) cross-section all is equipped with the coupler body for U type and left and right sides, through-hole (6) are seted up respectively to the first couple of anticreep ladder (2) rear portion left and right sides, first screw (7) are seted up respectively to the preceding left and right sides of first couple of anticreep ladder (2), lie in and be equipped with first bolt (8) jointly in through-hole (6) and first screw (7) with one side, first bolt (8) can with first screw (7) screw-thread fit that corresponds.
3. The special 110kV-220kV tension tower jumper overhaul ladder as claimed in claim 1, characterized in that: the rotation locking mechanism (3) comprises a second screw hole (9) and a second bolt (10), fixture (11), draw-in groove (12) and fixture block (13), anticreep ladder head couple (2) lower extreme is tubular structure, ladder body (1) upper end can be inserted in anticreep ladder head couple (2) lower extreme and junction between them passes through the bearing and connects, second screw (9) are seted up to anticreep ladder head couple (2) lower extreme one side, be equipped with second bolt (10) in second screw (9), second bolt (10) and second screw (9) screw-thread fit, second bolt (10) one end fixed mounting fixture (11), fixture block (11) are the cuboid structure, fixture block (11) one side is equipped with draw-in groove (12), draw-in groove (12) are half spherical groove, semi-spherical fixture block (13) of ladder body (1) upper end periphery fixed mounting several evenly distributed, draw-in groove (12) can cooperate with fixture block (13).
4. The special 110kV-220kV tension tower jumper overhaul ladder as claimed in claim 1, characterized in that: ladder body (1) adopt centipede ladder structure and ladder pole crisscross distribution, all be equipped with the skid resistant course on the ladder pole.
5. The special 110kV-220kV tension tower jumper overhaul ladder as claimed in claim 1, characterized in that: folding seat include adapter sleeve (14), montant (15), torsional spring (16), the chair body (17), flexible bracing piece (18), ladder body (1) lower extreme periphery is equipped with two adapter sleeve (14), the common fixed mounting montant (15) in adapter sleeve (14) right side, montant (15) upper end right side is equipped with chair body (17) of L type, chair body (17) upper end is arc structure and convex surface left, be connected through torsional spring (16) between montant (15) upper end and the chair body (17) left end, the expansion end of connecting flexible bracing piece (18) is articulated in chair body (17) bottom surface, the stiff end and the downside adapter sleeve (14) right side of flexible bracing piece (18) are articulated to be connected.
6. The special 110kV-220kV tension tower jumper overhaul ladder as claimed in claim 5, characterized in that: the ladder body (1) is detachably connected with the folding seat (4), third screw holes (19) are respectively formed in the front side and the rear side of the connecting sleeve (14), a plurality of uniformly distributed fourth screw holes (20) are respectively formed in the front side and the rear side of the lower end of the ladder body (1), and third bolts (21) are installed in the third screw holes (19) and the corresponding fourth screw holes (20) through common threads.
7. The special 110kV-220kV tension tower jumper overhaul ladder as claimed in claim 1, characterized in that: the ladder body (1) is made of epoxy tubes.
CN201921210835.4U 2019-07-26 2019-07-26 Special ladder for jumper maintenance of 110kV-220kV strain tower Active CN210829048U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201921210835.4U CN210829048U (en) 2019-07-26 2019-07-26 Special ladder for jumper maintenance of 110kV-220kV strain tower

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201921210835.4U CN210829048U (en) 2019-07-26 2019-07-26 Special ladder for jumper maintenance of 110kV-220kV strain tower

Publications (1)

Publication Number Publication Date
CN210829048U true CN210829048U (en) 2020-06-23

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Application Number Title Priority Date Filing Date
CN201921210835.4U Active CN210829048U (en) 2019-07-26 2019-07-26 Special ladder for jumper maintenance of 110kV-220kV strain tower

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112112550A (en) * 2020-09-18 2020-12-22 贵州电网有限责任公司 Novel rope ladder head with protective structure
CN112112551A (en) * 2020-09-18 2020-12-22 贵州电网有限责任公司 Novel rope ladder head of structure
CN112392393A (en) * 2020-11-13 2021-02-23 贵州电网有限责任公司 Novel change special ladder of strain insulator pole insulator

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112112550A (en) * 2020-09-18 2020-12-22 贵州电网有限责任公司 Novel rope ladder head with protective structure
CN112112551A (en) * 2020-09-18 2020-12-22 贵州电网有限责任公司 Novel rope ladder head of structure
CN112392393A (en) * 2020-11-13 2021-02-23 贵州电网有限责任公司 Novel change special ladder of strain insulator pole insulator

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