CN114109234B - Folding ladder for electric power operation - Google Patents

Folding ladder for electric power operation Download PDF

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Publication number
CN114109234B
CN114109234B CN202111206602.9A CN202111206602A CN114109234B CN 114109234 B CN114109234 B CN 114109234B CN 202111206602 A CN202111206602 A CN 202111206602A CN 114109234 B CN114109234 B CN 114109234B
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CN
China
Prior art keywords
ladder
sliding
auxiliary
main ladder
main
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN202111206602.9A
Other languages
Chinese (zh)
Other versions
CN114109234A (en
Inventor
冯欢
陈新斌
陈志伟
郑燕芳
曹良坚
陈伟平
周登峰
冯亦天
范中洋
方颖侃
胡群芳
王银法
张倩莹
胡志勇
马鹏飞
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.)
Jinhua Power Supply Co of State Grid Zhejiang Electric Power Co Ltd
PanAn Power Supply Co of State Grid Zhejiang Electric Power Co Ltd
Original Assignee
Jinhua Power Supply Co of State Grid Zhejiang Electric Power Co Ltd
PanAn Power Supply Co of State Grid Zhejiang Electric Power Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Jinhua Power Supply Co of State Grid Zhejiang Electric Power Co Ltd, PanAn Power Supply Co of State Grid Zhejiang Electric Power Co Ltd filed Critical Jinhua Power Supply Co of State Grid Zhejiang Electric Power Co Ltd
Priority to CN202111206602.9A priority Critical patent/CN114109234B/en
Publication of CN114109234A publication Critical patent/CN114109234A/en
Application granted granted Critical
Publication of CN114109234B publication Critical patent/CN114109234B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • EFIXED CONSTRUCTIONS
    • E06DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06CLADDERS
    • E06C1/00Ladders in general
    • E06C1/02Ladders in general with rigid longitudinal member or members
    • E06C1/14Ladders capable of standing by themselves
    • E06C1/16Ladders capable of standing by themselves with hinged struts which rest on the ground
    • E06C1/20Ladders capable of standing by themselves with hinged struts which rest on the ground with supporting struts formed as poles
    • E06C1/22Ladders capable of standing by themselves with hinged struts which rest on the ground with supporting struts formed as poles with extensible, e.g. telescopic, ladder parts or struts
    • EFIXED CONSTRUCTIONS
    • E06DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06CLADDERS
    • E06C7/00Component parts, supporting parts, or accessories
    • EFIXED CONSTRUCTIONS
    • E06DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06CLADDERS
    • E06C7/00Component parts, supporting parts, or accessories
    • E06C7/02Extending means
    • EFIXED CONSTRUCTIONS
    • E06DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06CLADDERS
    • E06C7/00Component parts, supporting parts, or accessories
    • E06C7/06Securing devices or hooks for parts of extensible ladders
    • EFIXED CONSTRUCTIONS
    • E06DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
    • E06CLADDERS
    • E06C7/00Component parts, supporting parts, or accessories
    • E06C7/42Ladder feet; Supports therefor

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Ladders (AREA)

Abstract

The invention provides a folding ladder for electric power operation, which comprises a base, a main ladder and an auxiliary ladder, wherein an adjusting channel is formed in the base along the length direction of the base, a supporting component is arranged above the adjusting channel, and a storage channel for placing the auxiliary ladder is formed below the adjusting channel; the main ladder is provided with a sliding component which is arranged in the adjusting channel in a sliding way, the supporting component is matched with the main ladder to be used for fixing the main ladder, and the main ladder is movably provided with a limiting component; the auxiliary ladder slides and sets up on main ladder, and main ladder passes through the hoisting assembly and is connected with auxiliary ladder, and spacing subassembly cooperatees with auxiliary ladder in order to be used for auxiliary ladder to keep fixed after promoting. The triangular stable supporting structure composed of the base, the main ladder and the supporting component greatly improves the stability of the main ladder and the auxiliary ladder, and when the whole device is folded, the main ladder is pushed back to the original position by folding the main ladder and then clamped and fixed by the supporting component, the storage channel accommodates the clamped and fixed auxiliary ladder, and the whole device is kept fixed and convenient to carry and transport.

Description

Folding ladder for electric power operation
Technical Field
The invention relates to the technical field of power engineering, in particular to a folding ladder for power operation.
Background
The number of power failures is an important index of an assessment power supply enterprise in power operation, the power supply enterprise is internally provided with a large number of technical improvements for guaranteeing power supply stability, when power failure frequency is reduced, most of live working is carried out without power failure on high-voltage electric equipment, the live working is mainly applied to power plants, substations, power transmission and distribution lines and the like, a large number of working equipment is usually required to be equipped in the live working due to equipment or line position requirements, an insulating ladder is required to be carried for working in the live working at a higher position, the whole function of the insulating ladder which is equipped at present is single, the stability is poor, and at least three persons are usually required to cooperate in the working process, so that a large amount of manpower is wasted.
Disclosure of Invention
Aiming at the technical problems that the whole function of an insulating ladder is single and the stability is poor in the existing live working, the invention provides a folding ladder for electric power working.
In order to solve the problems, the technical scheme of the invention is realized as follows:
the folding ladder for power operation disclosed in the embodiment of the invention comprises:
the base is provided with an adjusting channel along the length direction of the base, a supporting component is arranged above the adjusting channel, and a containing channel for placing an auxiliary ladder is arranged below the adjusting channel;
the main ladder is provided with a sliding component which is arranged in the adjusting channel in a sliding way, the supporting component is matched with the main ladder and used for fixing the main ladder, and the main ladder is movably provided with a limiting component;
the auxiliary ladder is arranged on the main ladder in a sliding manner, the main ladder is connected with the auxiliary ladder through the lifting assembly, and the limiting assembly is matched with the auxiliary ladder so as to be used for keeping the auxiliary ladder fixed after lifting.
According to the invention, the stability of the main ladder and the auxiliary ladder is greatly improved through the triangular stable supporting structure formed by the base, the main ladder and the supporting component, when the whole device is folded, the main ladder is pushed back to the original position by folding the main ladder, then the main ladder is clamped and fixed by the supporting component, the storage channel is used for accommodating the clamped and fixed auxiliary ladder, and the whole device is kept fixed, so that the whole device is convenient to carry and transport.
Preferably, the support component comprises two groups of support rods, the two groups of support rods are connected through connecting rods, and the two groups of support rods are respectively and movably arranged on two sides of the base; the utility model discloses a main ladder, including branch, branch top has seted up and is used for supporting the holding tank of main ladder, set up on the branch and be used for placing the spacing passageway of main ladder, spacing passageway with the holding tank is linked together.
Preferably, the cross section of the accommodating groove is U-shaped, and the width of the accommodating groove is larger than that of the middle side plate of the main ladder.
Preferably, the sliding assembly comprises a sliding seat, the sliding seat is arranged in the base in a sliding manner, guide rods are arranged at two ends of the sliding seat, and the guide rods penetrate through side plates in the main ladder and are arranged in the adjusting channel.
Preferably, the end of the guide rod passes out of the adjustment channel and the end of the guide rod is provided with a locking nut for fixedly locking the guide rod in the adjustment channel.
Preferably, the main ladder is provided with a sliding groove, the auxiliary ladder is provided with a sliding plate, the sliding plate is arranged in the sliding groove in a sliding manner, and the limiting assembly is positioned in the sliding groove and is used for propping against the sliding plate after the sliding plate is lifted.
Preferably, the cross section of the sliding plate is T-shaped.
Preferably, the limiting assembly comprises an arc limiting disc, a mounting groove is formed in the sliding groove, the arc limiting disc is movably arranged in the mounting groove through a rotating shaft, and the setting height of the rotating shaft is larger than the gravity center height of the arc limiting disc; the depth of the mounting groove is H, and the length of a connecting line at two ends of the arc-shaped limiting disc is L, wherein L is more than 2H.
Preferably, the lifting assembly comprises a sliding part and a fixing part, wherein the sliding part is arranged on one side of the middle side plate of the auxiliary ladder, the fixing part is arranged on one side of the middle side plate of the main ladder, the sliding part is connected with the fixing part through an insulating rope, and the insulating rope penetrates through the sliding part to be connected with the bottom of the auxiliary ladder.
Preferably, the sliding part comprises a pulley, a mounting shell, a connecting sheet and a reinforcing sheet, wherein a rotating pin penetrates through the reinforcing sheet, the connecting sheet, the mounting shell and the pulley, the pulley is positioned in the mounting shell, the connecting sheet is positioned between the mounting shell and the reinforcing sheet, the connecting sheet and the reinforcing sheet are connected with the middle side plate of the auxiliary ladder, and the connecting sheet, the reinforcing sheet and the middle side plate of the auxiliary ladder integrally form a triangular structure.
Compared with the prior art, the invention has the beneficial effects that:
1. according to the invention, the stability of the main ladder and the auxiliary ladder is greatly improved through the triangular stable supporting structure formed by the base, the main ladder and the supporting component, when the whole device is folded, the main ladder is pushed back to the original position by folding the main ladder, then the main ladder is clamped and fixed by the supporting component, and the storage channel is used for accommodating and clamping the auxiliary ladder, so that the whole device is kept fixed, and is convenient for carrying and carrying;
2. according to the auxiliary ladder, the arc-shaped limiting disc is movably arranged on the main ladder and is eccentrically arranged, after the auxiliary ladder is lifted, the arc-shaped limiting disc automatically deflects under the action of gravity, one end of the arc-shaped limiting disc deflected tightly abuts against the lower part of the side plate of the auxiliary ladder, the chord length of the arc-shaped limiting disc is far greater than the depth of the mounting groove, so that one end of the arc-shaped limiting disc protruding outwards stably supports the auxiliary body, and the auxiliary ladder can be supported quickly without a traditional padlock;
3. according to the auxiliary ladder, the connecting piece, the reinforcing piece and the pulley are arranged on one side of the auxiliary ladder, so that the insulating rope cannot be wound in the process of pulling the insulating rope to drive the auxiliary ladder to be lifted, the pulley is prevented from being blocked and deflected due to excessive use, and the working efficiency is greatly improved.
Drawings
In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic diagram of the overall structure of the present invention.
Fig. 2 is a schematic structural view of a support assembly according to the present invention.
Fig. 3 is a schematic structural view of a strut according to the present invention.
Fig. 4 is a schematic structural view of a main ladder according to the present invention.
Fig. 5 is a schematic structural view of a limiting component in the present invention.
Fig. 6 is a schematic view of the structure of the auxiliary ladder of the present invention.
Fig. 7 is a schematic structural view of a slider according to the present invention.
In the figure:
1 is a base, 11 is an adjusting channel, and 12 is a containing channel;
2 is a supporting rod, 21 is an accommodating groove, and 22 is a limiting channel;
3 is a main ladder, 31 is a chute, and 33 is a fixing piece;
32 is a limiting component, 321 is an arc limiting disc, 322 is a mounting groove, 323 is a rotating shaft;
4 is an auxiliary ladder, 41 is a skateboard;
42 is a sliding piece, 421 is a reinforcing piece, 422 is a connecting piece, 423 is a pulley, 424 is a mounting shell, 425 is a rotating pin;
and 5 is a sliding seat.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without any inventive effort, are intended to be within the scope of the invention.
The invention provides a folding ladder for electric power operation, which comprises a base, a main ladder and an auxiliary ladder, wherein an adjusting channel is formed in the base along the length direction of the base, a supporting component is arranged above the adjusting channel, and a storage channel for placing the auxiliary ladder is formed below the adjusting channel; the main ladder is provided with a sliding component which is arranged in the adjusting channel in a sliding way, the supporting component is matched with the main ladder to be used for fixing the main ladder, and the main ladder is movably provided with a limiting component; the auxiliary ladder slides and sets up on main ladder, and main ladder passes through the hoisting assembly and is connected with auxiliary ladder, and spacing subassembly cooperatees with auxiliary ladder in order to be used for auxiliary ladder to keep fixed after promoting. The triangular stable supporting structure composed of the base, the main ladder and the supporting component greatly improves the stability of the main ladder and the auxiliary ladder, and when the whole device is folded, the main ladder is pushed back to the original position by folding the main ladder and then clamped and fixed by the supporting component, the storage channel accommodates the clamped and fixed auxiliary ladder, and the whole device is kept fixed and convenient to carry and transport.
The technical scheme of the invention is specifically described below with reference to the accompanying drawings 1-7:
as shown in fig. 1-7, the embodiment of the invention discloses a folding ladder for electric power operation, which comprises a base 1, a main ladder 3 and an auxiliary ladder 4, wherein an adjusting channel 11 is formed in the base 1 along the length direction of the base, a supporting component is arranged above the adjusting channel 11, and a containing channel 12 for placing the auxiliary ladder 4 is formed below the adjusting channel 11. That is, in the embodiment of the invention, the cross section of the base is U-shaped, the two sides of the base are respectively provided with the adjusting channels, the adjusting channels are the adjusting channels penetrating through the base along the length direction perpendicular to the base, the supporting component can be moved and adjusted in the adjusting channels, the overall flexibility is high, and the supporting component slides in the adjusting channels, so that the main ladder and the auxiliary ladder can be conveniently folded in the base, and the follow-up overall carrying and transportation are facilitated.
Specifically, the supporting component is matched with the main ladder 3 to be used for fixing the main ladder, the supporting component comprises two groups of supporting rods 2, the two groups of supporting rods 2 are connected through connecting rods, and the two groups of supporting rods 2 are respectively and movably arranged on two sides of the base; the top of the supporting rod 2 is provided with a containing groove 21 for supporting the main ladder, the supporting rod 2 is provided with a limiting channel 22 for placing the main ladder, and the limiting channel 22 is communicated with the containing groove 21. That is, the two groups of support rods are rotatably arranged at two sides of the base through the pin shafts, when the main ladder is supported and used, the grooves formed in the two groups of support rods are used for respectively buckling the side plates of the main ladder, so that the main ladder is fixed, and the main ladder, the support rods and the base integrally form a triangular stable support structure, so that the stability of the main ladder in the use process is greatly improved; after the main ladder is used, the main ladder can be pushed into the base after being overturned, a limiting channel formed in one side of the supporting rod is buckled on a side plate of the main ladder, the stability of placement of the main ladder is kept, and meanwhile, the auxiliary ladder is buckled in a storage channel formed in the base, so that the base, the supporting rod, the main ladder and the auxiliary ladder are integrally kept in a stable storage state.
In some embodiments, the cross-section of the receiving groove 21 is U-shaped, and the width of the receiving groove 21 is greater than the width of the side plate in the main ladder 3. That is, the width of the accommodating groove is slightly larger than that of the side plate, so that the support rod can be fast abutted against the side plate, and the convenience of operation is improved.
The main ladder 3 is provided with a sliding assembly slidably arranged in the adjustment channel 11. That is, be provided with the slip subassembly in the bottom of main ladder, utilize slip subassembly can be along the directional stable removal of regulation passageway, guarantee main ladder in-process stability to under the direction effect of slip subassembly, main ladder also can be folded for the quick stable accomodating of rotation fulcrum by slip subassembly when folding state.
Specifically, the sliding assembly comprises a sliding seat 5, the sliding seat 5 is arranged in the base 1 in a sliding manner, guide rods are arranged at two ends of the sliding seat 5, and the guide rods penetrate through side plates in the main ladder 3 and are arranged in the adjusting channel 11. That is, set up the guide bar respectively in the sliding seat both sides, the guide bar wears to establish in adjustment channel, and the guide bar can be along the stable directional removal of adjustment channel, and the curb plate cover of main ladder is established on the guide bar, and the curb plate of main ladder can rotate around the guide bar, when main ladder uses, pulls out main ladder, and main ladder drives the sliding seat and slides to adjustment channel's tip, and simultaneously with main ladder upset support on the target object, support branch and support and accomplish triangle-shaped steady rest on the curb plate of main ladder afterwards.
In some embodiments, the end of the guide rod that passes out of the adjustment channel 11 is provided with a locking nut for fixedly locking the guide rod within the adjustment channel 11. That is, in order to ensure the stability of the main ladder in use, after the main ladder is pulled out and placed on the target, the lock nut of the guide rod is screwed down, so that the lock nut is tightly abutted against the gasket, and the guide rod is ensured to be fixed in the adjusting channel.
The main ladder 3 is movably provided with a limiting component 32, the auxiliary ladder 4 is arranged on the main ladder 3 in a sliding manner, and the limiting component 32 is matched with the auxiliary ladder 4 so as to be used for keeping the auxiliary ladder fixed after being lifted. That is, the auxiliary ladder is also arranged on the main ladder in a sliding manner, the operation height can be improved by using the auxiliary ladder, the operation requirements of different heights are met, and when the auxiliary ladder is lifted, the limiting assembly automatically acts stably to lean against the lower part of the auxiliary ladder, so that the auxiliary ladder is kept fixed under the stable support of the limiting assembly, the traditional hook locking mode is omitted by using the limiting assembly, the operation of operators is not needed, and the auxiliary ladder can automatically act after being lifted.
Specifically, the main ladder 3 is provided with a chute 31, the auxiliary ladder 4 is provided with a slide plate 41, the slide plate 41 is slidably arranged in the chute 31, the limiting component 32 is positioned in the chute 31, and the limiting component 32 is used for supporting the slide plate 41 after being lifted. That is, the slide on the auxiliary ladder slides in the spout to after the slide promotes through spacing subassembly, spacing subassembly is automatic to be reversed and is supported and lean on the slide lower part, can stably support the auxiliary ladder with the spacing subassembly of upset, the steady operation of electric power engineering personnel when on the auxiliary ladder of being convenient for.
In some embodiments, the slide 41 has a T-shaped cross-sectional shape. That is, the cross section shape of the sliding plate is T-shaped, and meanwhile, the sliding groove is also T-shaped, and the T-shaped sliding plate is arranged in the T-shaped sliding groove in a sliding manner, so that the sliding plate is ensured to stably slide in the sliding groove, and the sliding plate is prevented from sliding out of the sliding groove.
In some embodiments, the limiting assembly 32 includes an arc-shaped limiting disc 321, a mounting groove 322 is formed in the sliding groove 31, the arc-shaped limiting disc 321 is movably disposed in the mounting groove 322 through a rotating shaft 323, and the height of the rotating shaft 323 is greater than the height of the center of gravity of the arc-shaped limiting disc 321; the length of the installation groove 322 extending along the axial direction perpendicular to the sliding groove 31 is H, the depth of the installation groove 322 is H, the chord length of the arc-shaped limiting disc 321 is L, and the length of the connecting line at two ends of the arc-shaped limiting disc is L, wherein L is greater than 2H. That is, place the arc limiting plate that can overturn in the spout, when main ladder normal condition, slide under the main ladder is in initial position, the slide is pressed on the upper portion of arc limiting plate this moment, the arc limiting plate is in the inside of mounting groove, after vice ladder promotes, slide follow arc limiting plate upper portion roll-off, this moment because main ladder is in the incline condition, arc limiting plate eccentric arrangement, fulcrum and focus misalignment, arc limiting plate can overturn downwards fast under self gravity effect, the one end of arc limiting plate slides the groove from the mounting groove, the other end downward movement of arc limiting plate supports and leans on the bottom of mounting groove, the outwards outstanding one end of arc limiting plate can be regarded as supporting step and stablize the lower part of supporting the slide, the other end of arc limiting plate is stablized and is contradicted in the inside of mounting groove under the effort of self gravity and vice ladder simultaneously, improve the stability of whole support greatly. It should be noted that the gravity center height of the arc-shaped limiting disc is required to be lower than the set height of the rotating shaft, so that the arc-shaped limiting disc can automatically turn over under the self gravity after the sliding plate is separated from the arc-shaped limiting disc, manual operation is not required, the chord length of the arc-shaped limiting disc is required to be far longer than the depth of the mounting groove, and the arc-shaped limiting disc can be abutted against the bottom of the mounting groove after turning over. It should be noted that in order to improve the possibility of the overall device to achieve a fast movement of the adjustment position during use, embodiments of the present invention may also provide a pulley with self-locking at the bottom of the base.
The main ladder 3 is connected with the auxiliary ladder 4 through a lifting assembly, the lifting assembly comprises a sliding part 42 and a fixing part 33, the sliding part 42 is arranged on one side of a side plate in the auxiliary ladder 4, the fixing part 33 is arranged on one side of the side plate in the main ladder 3, the sliding part 42 is connected with the fixing part 33 through an insulating rope, and the insulating rope penetrates through the sliding part 42 to be connected with the bottom of the auxiliary ladder 4. That is, the auxiliary ladder can be driven to stably slide on the main ladder by pulling the insulating rope, and the insulating rope can be prevented from being clamped after long-time use by arranging the sliding part on one side of the side plate of the auxiliary ladder.
Specifically, the sliding member 42 includes a pulley 423, a mounting shell 424, a connecting piece 422 and a reinforcing piece 421, the connecting piece 422, the mounting shell 424 and the pulley 423 are penetrated with a rotation pin 425, the pulley 423 is located in the mounting shell 424, the connecting piece 422 is located between the mounting shell 424 and the reinforcing piece 421, the connecting piece 422 and the reinforcing piece 421 are connected with the side plates in the auxiliary ladder 4, and the connecting piece 422, the reinforcing piece 421 and the side plates in the auxiliary ladder 4 integrally form a triangle structure. That is, install in one side of vice ladder curb plate through the pulley, set up connection piece and reinforcement piece in the pulley outside simultaneously, can improve the bearing strength of pulley greatly to the curb plate wholly constitutes triangle-shaped structure in connection piece, reinforcement piece and the vice ladder, can strengthen the installation strength between installation shell and the slide, avoids after long-time use, and deflection appears in pulley and installation shell, and then causes the condition of card rope. The present embodiment is only for explanation of the present invention and is not to be construed as limiting the present invention, and modifications to the present embodiment, which may not creatively contribute to the present invention as required by those skilled in the art after reading the present specification, are all protected by patent laws within the scope of claims of the present invention.

Claims (4)

1. Folding ladder for electric power operation, its characterized in that includes:
the base is provided with an adjusting channel along the length direction of the base, a supporting component is arranged above the adjusting channel, and a containing channel for placing an auxiliary ladder is arranged below the adjusting channel;
the main ladder is provided with a sliding component which is arranged in the adjusting channel in a sliding way, the supporting component is matched with the main ladder and used for fixing the main ladder, and the main ladder is movably provided with a limiting component;
the auxiliary ladder is arranged on the main ladder in a sliding manner, the main ladder is connected with the auxiliary ladder through a lifting assembly, and the limiting assembly is matched with the auxiliary ladder so as to be used for keeping the auxiliary ladder fixed after lifting;
the support assembly comprises two groups of support rods, the two groups of support rods are connected through connecting rods, and the two groups of support rods are respectively and movably arranged on two sides of the base; the top of the supporting rod is provided with a containing groove for supporting the main ladder, the supporting rod is provided with a limiting channel for placing the main ladder, and the limiting channel is communicated with the containing groove;
the section of the accommodating groove is U-shaped, and the width of the accommodating groove is larger than that of the middle side plate of the main ladder;
the sliding assembly comprises a sliding seat, the sliding seat is arranged in the base in a sliding manner, guide rods are arranged at two ends of the sliding seat, and the guide rods penetrate through side plates in the main ladder and are arranged in the adjusting channel;
the end part of the guide rod penetrates out of the adjusting channel, and a locking nut is arranged at the end part of the guide rod and used for fixedly locking the guide rod in the adjusting channel;
the main ladder is provided with a sliding groove, the auxiliary ladder is provided with a sliding plate, the sliding plate is arranged in the sliding groove in a sliding way, the limiting component is positioned in the sliding groove and is used for being propped against the sliding plate after being lifted;
the limiting assembly comprises an arc limiting disc, a mounting groove is formed in the sliding groove, the arc limiting disc is movably arranged in the mounting groove through a rotating shaft, and the setting height of the rotating shaft is larger than the gravity center height of the arc limiting disc; the depth of the mounting groove is H, and the length of a connecting line at two ends of the arc-shaped limiting disc is L, wherein L is more than 2H.
2. A folding ladder for electric power operation according to claim 1, characterized in that the cross-sectional shape of the slide plate is T-shaped.
3. The folding ladder for electric power operation according to claim 1, wherein the lifting assembly comprises a slider and a fixing member, the slider is disposed on one side of the middle side plate of the auxiliary ladder, the fixing member is disposed on one side of the middle side plate of the main ladder, the slider is connected with the fixing member through an insulating rope, and the insulating rope passes through the slider to be connected with the bottom of the auxiliary ladder.
4. A folding ladder for electric power operation according to claim 3, wherein the sliding member comprises a pulley, a mounting shell, a connecting piece and a reinforcing piece, wherein a rotation pin penetrates through the reinforcing piece, the connecting piece, the mounting shell and the pulley, the pulley is positioned in the mounting shell, the connecting piece is positioned between the mounting shell and the reinforcing piece, the connecting piece and the reinforcing piece are connected with the side plates in the auxiliary ladder, and the connecting piece, the reinforcing piece and the side plates in the auxiliary ladder integrally form a triangular structure.
CN202111206602.9A 2021-10-17 2021-10-17 Folding ladder for electric power operation Active CN114109234B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202111206602.9A CN114109234B (en) 2021-10-17 2021-10-17 Folding ladder for electric power operation

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202111206602.9A CN114109234B (en) 2021-10-17 2021-10-17 Folding ladder for electric power operation

Publications (2)

Publication Number Publication Date
CN114109234A CN114109234A (en) 2022-03-01
CN114109234B true CN114109234B (en) 2023-10-20

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2570435Y (en) * 2002-09-11 2003-09-03 李�杰 Non-skid extension ladder
CN211342736U (en) * 2019-09-16 2020-08-25 杜山山 Ladder for power cable maintenance
CN211647949U (en) * 2019-12-23 2020-10-09 中汽建工(洛阳)检测有限公司 Portable high-altitude extension ladder for rebounding
CN113202406A (en) * 2021-03-25 2021-08-03 周欣欣 Supporting structure for electric power overhaul
CN214196143U (en) * 2020-10-10 2021-09-14 程娅 Power maintenance insulating ladder convenient to climb and go up and down

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2570435Y (en) * 2002-09-11 2003-09-03 李�杰 Non-skid extension ladder
CN211342736U (en) * 2019-09-16 2020-08-25 杜山山 Ladder for power cable maintenance
CN211647949U (en) * 2019-12-23 2020-10-09 中汽建工(洛阳)检测有限公司 Portable high-altitude extension ladder for rebounding
CN214196143U (en) * 2020-10-10 2021-09-14 程娅 Power maintenance insulating ladder convenient to climb and go up and down
CN113202406A (en) * 2021-03-25 2021-08-03 周欣欣 Supporting structure for electric power overhaul

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