CN112412324A - A equipment cat ladder for transmission line overhauls - Google Patents
A equipment cat ladder for transmission line overhauls Download PDFInfo
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- CN112412324A CN112412324A CN202011164344.8A CN202011164344A CN112412324A CN 112412324 A CN112412324 A CN 112412324A CN 202011164344 A CN202011164344 A CN 202011164344A CN 112412324 A CN112412324 A CN 112412324A
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- 241000282326 Felis catus Species 0.000 title claims description 4
- 238000012423 maintenance Methods 0.000 abstract description 21
- 230000009193 crawling Effects 0.000 abstract 3
- 239000002131 composite material Substances 0.000 description 3
- 238000010276 construction Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 239000012212 insulator Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 241001391944 Commicarpus scandens Species 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000009194 climbing Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
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- 238000009413 insulation Methods 0.000 description 1
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Classifications
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- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06C—LADDERS
- E06C1/00—Ladders in general
- E06C1/02—Ladders in general with rigid longitudinal member or members
- E06C1/34—Ladders attached to structures, such as windows, cornices, poles, or the like
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- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06C—LADDERS
- E06C1/00—Ladders in general
- E06C1/02—Ladders in general with rigid longitudinal member or members
- E06C1/38—Special constructions of ladders, e.g. ladders with more or less than two longitudinal members, ladders with movable rungs or other treads, longitudinally-foldable ladders
- E06C1/381—Ladders with rungs or treads attached only to one rigid longitudinal member
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- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06C—LADDERS
- E06C7/00—Component parts, supporting parts, or accessories
- E06C7/08—Special construction of longitudinal members, or rungs or other treads
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- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06C—LADDERS
- E06C7/00—Component parts, supporting parts, or accessories
- E06C7/50—Joints or other connecting parts
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- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06C—LADDERS
- E06C7/00—Component parts, supporting parts, or accessories
- E06C7/50—Joints or other connecting parts
- E06C7/505—Anchors being adapted to fix a ladder to a vertical structure, e.g. ladder hooks
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G1/00—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines
- H02G1/02—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines for overhead lines or cables
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Architecture (AREA)
- Structural Engineering (AREA)
- Ladders (AREA)
Abstract
The invention relates to the technical field of power transmission line maintenance equipment, and particularly discloses an assembly crawling ladder for power transmission line maintenance, which comprises a tower connecting ladder, a line connecting ladder, a connecting ladder and a connecting assembly, wherein the tower connecting ladder comprises a first crawling ladder and a tower connector arranged at one end of the first crawling ladder, and the tower connector is used for being connected with a high-voltage line tower; the line connecting ladder comprises a second ladder stand and a line connector arranged at one end of the second ladder stand, wherein the line connector is used for being connected with a high-voltage line; the connecting ladder comprises a third ladder stand which is arranged between the tower frame connecting ladder and the line connecting ladder; the two ends of the third ladder stand are respectively connected with the other end of the first ladder stand and the other end of the second ladder stand through a connecting component. The device solves the problems that the rope ladder belongs to a flexible tool and is difficult to bear, the hard ladder is heavy and the two ends of the hard ladder are inconvenient to fix.
Description
Technical Field
The invention relates to the technical field of power transmission line maintenance equipment, in particular to an assembly ladder stand for power transmission line maintenance.
Background
In the process of overhauling the power transmission line, a worker forbids to tread the composite insulator due to the fact that the bending resistance of the core rod with the stress function in the composite insulator is poor and the core rod is easy to break and the umbrella skirt with the insulation function is made of the composite rubber material and is soft in texture and easy to crack under stress in the process of going from a pole tower to a lead. At the present stage, a worker conducts construction operation through a wire under a tower by using a rope ladder or a hard ladder, but the rope ladder is difficult to bear force by a flexible tool, the hard ladder is heavy, two ends of the hard ladder are inconvenient to fix, general operators are difficult to operate and long in time consumption, and potential safety hazards exist.
Disclosure of Invention
The invention aims to: the utility model provides an equipment cat ladder for transmission line overhauls to solve among the relevant art rope ladder atress difficulty, the hard ladder is heavier and both ends are fixed inconvenient problem.
The invention provides an assembly ladder stand for power transmission line maintenance, which comprises:
the tower connecting ladder comprises a first ladder and a tower connector arranged at one end of the first ladder, and the tower connector is used for being connected with a high-voltage line tower;
the line connection ladder comprises a second ladder stand and a line connector arranged at one end of the second ladder stand, and the line connector is used for being connected with a high-voltage line;
the connecting ladder comprises a third ladder stand and is arranged between the tower frame connecting ladder and the line connecting ladder;
and the two ends of the third ladder stand are respectively connected with the other end of the first ladder stand and the other end of the second ladder stand through the connecting assembly.
As an optimal technical scheme of the assembled ladder stand for overhauling the power transmission line, the circuit connector comprises a hook portion and a clamping portion, the hook portion is fixedly connected with one end of the second ladder stand, one end of the clamping portion is rotatably connected with the hook portion, the circuit connector further comprises a reset spring arranged between the clamping portion and the hook portion, and the reset spring can drive the clamping portion to rotate relative to the hook portion so as to seal an opening of the hook portion.
As a preferred technical scheme of an assembled ladder stand for power transmission line maintenance, the tower connector comprises a connecting piece, the connecting piece is rotatably arranged on the first ladder stand, the connector comprises a first plate, a second plate, a third plate, a connecting bolt and a nut, the second plate and the third plate are arranged on the first plate at intervals, the second plate and the third plate are respectively provided with a first through hole and a second through hole, the connecting bolt sequentially penetrates through the first through hole and the second through hole and is in threaded connection with the nut, and the first plate, the second plate, the third plate and the bolt enclose a mounting hole which allows a cross rod of a high-voltage pylon to penetrate through.
As an optimal technical scheme of the assembly ladder stand for power transmission line maintenance, the tower connector further comprises a transverse plate, at least two connectors are arranged on the transverse plate at intervals, and the transverse plate is hinged with one end of the first ladder stand.
As the preferable technical scheme of the assembly ladder stand for the power transmission line maintenance, the assembly ladder stand for the power transmission line maintenance comprises a plurality of third ladder stands, the third ladder stands are located between the tower connecting ladder and the line connecting ladder, and every two adjacent third ladder stands are connected through the connecting assembly.
As an optimal technical scheme of the assembly ladder stand for power transmission line maintenance, the connecting assembly comprises two connecting structures and a connecting piece for connecting the two connecting structures, the two ends of the third ladder stand, the other end of the first ladder stand and the other end of the second ladder stand are both provided with the connecting structures, the connecting structures are bolts, the connecting piece is a threaded sleeve, and the two ends of the threaded sleeve can be in threaded connection with the bolts.
As an optimal technical scheme of an assembly ladder stand for power transmission line maintenance, the two bolts of the connecting assembly are provided with clamping grooves and are oppositely arranged, the inner wall of the screw sleeve is provided with a through groove, the connecting assembly further comprises a clamping key, and the clamping key can be clamped in the through groove and the two clamping grooves simultaneously.
As the preferred technical scheme of the assembly ladder stand for the power transmission line maintenance, the clamping key comprises a key body and a key head, the key head is fixedly connected with the key body, the key body can be simultaneously inserted into the through groove and the two clamping grooves, and the key head is abutted to the screw sleeve.
As a preferred technical scheme of an assembled ladder stand for power transmission line maintenance, the first ladder stand comprises a first ladder frame and first pedals alternately arranged on two sides of the first ladder frame, the tower connector is arranged at one end of the first ladder frame, and the connecting structure is arranged at the other end of the first ladder frame;
the second ladder stand comprises a second ladder frame and second pedals alternately arranged on two sides of the second ladder frame, the circuit connector is arranged at one end of the second ladder frame, and the connecting structure is arranged at the other end of the second ladder frame;
the third ladder stand comprises a third ladder frame and third pedals alternately arranged on two sides of the third ladder frame, and the connecting structures are arranged at two ends of the third ladder frame.
As a preferred technical scheme of an assembled ladder stand for power transmission line maintenance, the first pedal is provided with an unfolding position perpendicular to the first ladder frame and a folding position parallel to the first ladder frame, and the first pedal can rotate between the unfolding position and the folding position;
the first ladder stand further comprises a clamping table arranged on the first ladder frame, and when the first pedal is located at the unfolding position, the first pedal is abutted to the clamping table.
The invention has the beneficial effects that:
the invention provides an assembly ladder stand for power transmission line maintenance, which comprises a tower connecting ladder, a line connecting ladder, a connecting ladder and a connecting assembly, wherein the tower connecting ladder comprises a first ladder stand and a tower connector arranged at one end of the first ladder stand, and the tower connector is used for being connected with a high-voltage line tower; the line connecting ladder comprises a second ladder stand and a line connector arranged at one end of the second ladder stand, and the line connector is used for being connected with a high-voltage line; the connecting ladder comprises a third ladder stand which is arranged between the tower frame connecting ladder and the line connecting ladder; the two ends of the third ladder stand are respectively connected with the other end of the first ladder stand and the other end of the second ladder stand through connecting components. The staff is by the high-tension line tower to the high-tension line in-process down, at first will set up the pylon connector that connects ladder one end at the pylon and be connected with the high-tension line tower, then will connect the one end of ladder and the other end that the ladder was connected to the pylon and pass through coupling assembling and connect, then pass through coupling assembling with the one end of line connection ladder and the other end of being connected the ladder and be connected, at last be connected line connector and high-tension line, when solving staff and using rope ladder or hard ladder to carry out construction work from the wire under the shaft tower, the rope ladder belongs to flexible tool atress difficulty, the hard ladder is heavier and both ends are fixed inconvenient, difficult operation, long consuming time, and there is the problem of potential.
Drawings
Fig. 1 is a schematic structural view of an assembly ladder stand for power transmission line maintenance in the first embodiment of the invention;
fig. 2 is a schematic structural view of a tower connecting ladder of the assembly ladder for overhauling the power transmission line in the first embodiment of the invention;
fig. 3 is a schematic structural view of a line connection ladder of the assembly ladder for overhauling the power transmission line in the first embodiment of the invention;
fig. 4 is a schematic structural view of a connecting ladder of the assembly ladder for overhauling the power transmission line in the first embodiment of the invention;
fig. 5 is a schematic structural view of a line connector of the assembled ladder stand for overhauling the power transmission line in the first embodiment of the invention;
fig. 6 is a schematic structural view of a connecting assembly of the assembly ladder stand for power transmission line maintenance in the first embodiment of the invention;
fig. 7 is a schematic structural diagram of a connector of an assembly ladder stand for transmission line maintenance in the first embodiment of the invention;
fig. 8 is a schematic view of a key structure of an assembly ladder for transmission line maintenance in the first embodiment of the present invention.
In the figure:
100. a high voltage line tower; 200. a high-voltage line;
1. the tower is connected with a ladder; 2. a line connecting ladder; 3. connecting a ladder; 4. a connecting assembly;
11. a first ladder stand; 111. a first ladder frame; 112. a first pedal;
12. a tower connector; 121. a transverse plate; 122. a connector; 1221. a first plate; 1222. a second plate; 1223. a third plate;
21. a second ladder stand; 211. a second ladder frame; 212. a second pedal;
22. a line connector; 221. a hook portion; 222. a clamping part; 223. a return spring;
31. a third ladder stand; 311. a third ladder frame; 312. a third step;
41. a connecting structure; 411. a card slot; 412. a card key; 4121. a key head; 4122. a body; 42. a connecting member; 421. a through groove.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. Where the terms "first position" and "second position" are two different positions, and where a first feature is "over", "above" and "on" a second feature, it is intended that the first feature is directly over and obliquely above the second feature, or simply means that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.
Example one
As shown in fig. 1 to 8, the present embodiment provides an assembly ladder stand for transmission line maintenance, which includes a tower connecting ladder 1, a line connecting ladder 2, a connecting ladder 3 and a connecting assembly 4, wherein the tower connecting ladder 1 includes a first ladder 11, and a tower connector 12 arranged at one end of the first ladder 11, and the tower connector 12 is used for connecting with a high-voltage line tower 100; the line connection ladder 2 comprises a second ladder stand 21 and a line connector 22 arranged at one end of the second ladder stand 21, wherein the line connector 22 is used for being connected with the high-voltage line 200; the connecting ladder 3 comprises a third ladder stand 31, and the connecting ladder 3 is arranged between the tower connecting ladder 1 and the line connecting ladder 2; the two ends of the third ladder 31 are respectively connected with the other end of the first ladder 11 and the other end of the second ladder 21 through the connecting components 4, when a worker works from the high-voltage line tower 100 to the high-voltage line 200, the tower connector 12 provided at one end of the tower connecting ladder 1 is first connected to the high-voltage line tower 100, then one end of the connecting ladder 3 is connected with the other end of the tower connecting ladder 1 through the connecting assembly 4, then the line connecting ladder 2 is connected with the other end of the connecting ladder 3 through the connecting assembly 4, finally the line connector 22 is connected with the high-voltage line 200, to solve the problem that when a worker uses a rope ladder or a hard ladder to carry out construction work from the high-voltage line 200 below the high-voltage line tower 100, the rope ladder belongs to the problem that the flexible tool is difficult to bear, the hard ladder is heavy, two ends of the hard ladder are inconvenient to fix, and common workers are difficult to operate and long in time consumption and have potential safety hazards.
Optionally, the line connector 22 includes a hook portion 221 and a clip portion 222, the hook portion 221 is fixedly connected to one end of the second ladder 21, one end of the clip portion 222 is rotatably connected to the hook portion 221, and the line connector 22 further includes a return spring 223 disposed between the clip portion 222 and the hook portion 221, and the return spring 223 can drive the clip portion 222 to rotate relative to the hook portion 221 so as to close the opening of the hook portion 221. In this embodiment, the high voltage line 200 is hooked by the hook 221, and the other end of the snap-in portion 222 abuts against the hook 221 to close the opening of the hook 221, so that the high voltage line 200 can be connected to the line connector 22. In other embodiments, the free end of the clamping portion 222 and the free end of the hook portion 221 may be screwed or clamped by a screw, so as to close the opening of the hook portion 221.
Optionally, the tower connector 12 includes a connector 122, the connector 122 is rotatably disposed on the first ladder 11, the connector 122 includes a first plate 1221, a second plate 1222, a third plate 1223, a connecting bolt and a nut, the second plate 1222 and the third plate 1223 are disposed at an interval on the first plate 1221, the second plate 1222 and the third plate 1223 are respectively provided with a first through hole and a second through hole, the connecting bolt sequentially passes through the first through hole and the second through hole and is screwed with the nut, and the first plate 1221, the second plate 1222, the third plate 1223 and the bolt enclose a mounting hole configured to allow the cross rod of the high-voltage line tower 100 to pass through. In this embodiment, the first plate 1221, the second plate 1222, and the third plate 1223 are enclosed to form a U-shaped groove, the cross bar of the high-voltage line tower 100 is placed in the U-shaped groove, the connecting bolt passes through the first through hole and the second through hole to be screwed with the nut, at this time, the connector 122 forms an openable mounting hole, the cross bar of the high-voltage line tower 100 is sleeved in the mounting hole formed by the connector 122, and when the connector is required to be detached, the connector 122 can be detached from the high-voltage line tower 100 only by detaching the bolt. In other embodiments, a rubber layer is attached to the surface of the connecting bolt between the second plate 1222 and the third plate 1223 to reduce the connector 122 from sliding on the cross bar of the high voltage line tower 100.
Optionally, the tower connector 12 further comprises a transverse plate 121, at least two connectors 122 are arranged at intervals on the transverse plate 121, and the transverse plate 121 is hinged to one end of the first ladder 11. In this embodiment, the connectors 122 are arranged in two for the purpose of reducing the stress on a single connector 122 when the two connectors 122 are fixed on the cross bar of the high voltage cable tower 100, so as to increase the durability of the connectors 122, and at the same time, the two connectors 122 are simultaneously connected to the cross bar, so that the tower connector 12 is stably fixed on the cross bar of the high voltage cable tower 100, and the connectors 122 can be conveniently disassembled and assembled because the mounting holes formed by the connectors 122 can be opened and closed. In other embodiments, the number of connectors 122 may be 3, 4, etc.
Optionally, the assembly ladder stand for power transmission line maintenance comprises a plurality of third ladder stands 31, the plurality of third ladder stands 31 are located between the tower connecting ladder 1 and the line connecting ladder 2, and two adjacent third ladder stands 31 are connected through the connecting assembly 4. In this embodiment, work may be performed by connecting a plurality of third ladder ladders 31 when the distance between the tower connector 12 at the connection of the high voltage line tower 100 and the line connector 22 at the connection of the high voltage line 200 is greater than the sum of the distances between the first ladder 11, the second ladder 21 and the third ladder 31.
Optionally, the connecting assembly 4 includes two connecting structures 41 and a connecting piece 42 connecting the two connecting structures, the connecting structures 41 are respectively provided at two ends of the third ladder 31, the other end of the first ladder 11 and the other end of the second ladder 21, the connecting structures 41 are bolts, the connecting piece 42 is a threaded sleeve, and two ends of the threaded sleeve can be screwed with the bolts. In this embodiment, the connecting structure 41 is a bolt, and the connecting member 42 is a threaded sleeve, so that the connecting efficiency can be further improved, and the operation of a worker is facilitated.
Optionally, two bolts of the connection assembly 4 are both provided with a slot 411, the two slots 411 are arranged oppositely, the inner wall of the threaded sleeve is provided with a through slot 421, the connection assembly 4 further includes a clamping key 412, and the clamping key 412 can be inserted into the through slot 421 and the two slots 411 simultaneously. In this embodiment, in order to prevent the bolt and the nut from loosening and separating during operation, the through groove 421 is formed on the nut, the clamping grooves 411 are formed on two opposite bolts in the connecting assembly 4 along the axial direction, and when the through groove 421 and the two clamping grooves 411 are opposite, the clamping key 412 is inserted, so that the relative rotation between the bolt and the nut can be prevented, and the bolt can be prevented from falling off from the nut.
Preferably, the snap key 412 comprises a key body 4122 and a key head 4121, the key head 4121 and the key body 4122 are fixedly connected, the key body 4122 can be simultaneously inserted into the through groove 421 and the two clamping grooves 411, and the key head 4121 abuts against the screw sleeve. Specifically, in order to prevent the clamping key 412 from slipping out of the clamping groove 411 and the through groove 421, the clamping key 412 is designed into two parts, namely a key body 4122 and a key head 4121, the key body 4122 is inserted into the clamping groove 411 and the through groove 421 which are opposite to each other along the direction from the high-voltage line tower 100 to the high-voltage line 200, and the key head 4121 is clamped on the screw sleeve, so that the bolt and the screw sleeve are prevented from falling off. In other embodiments, the key head 4121 may be replaced with a magnet to magnetically engage with the threaded sleeve or a snap to engage with the threaded sleeve.
Optionally, the first ladder 11 comprises a first ladder frame 111, first footrests 112 alternately arranged on both sides of the first ladder frame 111, a tower connector 12 arranged at one end of the first ladder frame 111, and a connecting structure 41 arranged at the other end of the first ladder frame 111; the second ladder 21 comprises a second ladder frame 211, second pedals 212 alternately arranged at two sides of the second ladder frame 211, a circuit connector 22 arranged at one end of the second ladder frame 211, and a connecting structure 41 arranged at the other end of the second ladder frame 211; the third ladder 31 includes a third ladder frame 311, third pedals 312 alternately disposed on both sides of the third ladder frame 311, and connecting structures 41 disposed on both ends of the third ladder frame 311. In this embodiment, the first pedals 112, the second pedals 212 and the third pedals 312 are used for climbing from the high voltage tower 100 to the high voltage line 200, and the alternate arrangement on the first ladder frame 111, the second ladder frame 211 and the third ladder frame 311 is designed according to human engineering, and matches with the actions of hands and feet when people climb, and the alternate arrangement reduces the cost and the weight of the ladder itself compared with the alternate arrangement.
Optionally, the first pedals 112 have an unfolded position perpendicular to the first ladder frame 111 and a folded position parallel to the first ladder frame 111, and the first pedals 112 can rotate between the unfolded position and the folded position; the first ladder stand 11 further comprises a clamping table arranged on the first ladder frame 111, and when the first pedal 112 is located at the unfolding position, the first pedal 112 abuts against the clamping table. In this embodiment, the first ladder frames 111 are alternately provided with first pedals 112, when in the folded position, the first pedals 112 are parallel to the first ladder frames 111, and the free ends of the first pedals 112 face the direction of the tower connector 12, and when in the unfolded position, the hinged ends of the first pedals 112 abut against the blocking platform, and the first pedals 112 are perpendicular to the first ladder frames 111. The second steps 212 and the second ladder frame 211 and the third steps 312 and the third ladder frame 311 are unfolded and folded in the same manner as the first steps 112 and the first ladder frame 111.
Example two
The difference between the first ladder 11 and the first embodiment is that the first ladder 11 includes a first ladder frame 111, first pedals 112 spaced apart from each other on two sides of the first ladder frame 111, a tower connector 12 disposed on one end of the first ladder frame 111, and a connecting structure 41 disposed on the other end of the first ladder frame 111; the second ladder 21 comprises a second ladder frame 211, second pedals 212 arranged at two sides of the second ladder frame 211 at intervals, a circuit connector 22 arranged at one end of the second ladder frame 211, and a connecting structure 41 arranged at the other end of the second ladder frame 211; the third ladder 31 comprises a third ladder frame 311, third pedals 312 arranged at two sides of the third ladder frame 311 at intervals, and connecting structures 41 arranged at two ends of the third ladder frame 311. In this embodiment, when the staff has a rest or performs a midway operation from the high-voltage line tower 100 to the high-voltage line 200, two feet can step on the pedals on two sides of the same height, so that the center of the staff is not deviated, and the consumption of the physical strength of the staff can be reduced.
It should be understood that the above-described embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.
Claims (10)
1. The utility model provides an equipment cat ladder for transmission line overhauls which characterized in that includes:
the tower connecting ladder (1), the tower connecting ladder (1) comprises a first ladder (11) and a tower connector (12) arranged at one end of the first ladder (11), and the tower connector (12) is used for being connected with a high-voltage line tower (100);
the line connection ladder (2), the line connection ladder (2) comprises a second ladder (21) and a line connector (22) arranged at one end of the second ladder (21), and the line connector (22) is used for being connected with a high-voltage line (200);
the connecting ladder (3) comprises a third ladder (31), and the connecting ladder (3) is arranged between the tower connecting ladder (1) and the line connecting ladder (2);
and two ends of the third ladder stand (31) are respectively connected with the other end of the first ladder stand (11) and the other end of the second ladder stand (21) through the connecting component (4).
2. The assembly ladder stand for overhauling a power transmission line according to claim 1, wherein the line connector (22) comprises a hook part (221) and a clamping part (222), the hook part (221) is fixedly connected with one end of the second ladder stand (21), one end of the clamping part (222) is rotatably connected with the hook part (221), the line connector (22) further comprises a return spring (223) arranged between the clamping part (222) and the hook part (221), and the return spring (223) can drive the clamping part (222) to rotate relative to the hook part (221) so as to close the opening of the hook part (221).
3. An assembly ladder for the overhaul of power transmission lines according to claim 1, the tower connector (12) comprises a connector (122), the connector (122) is rotatably arranged on the first ladder stand (11), the connector (122) includes a first plate (1221), a second plate (1222), a third plate (1223), a connection bolt, and a nut, the second plate (1222) and the third plate (1223) are arranged at intervals to the first plate (1221), the second plate (1222) and the third plate (1223) are provided with a first through hole and a second through hole, respectively, the connecting bolt sequentially passes through the first through hole and the second through hole and is in threaded connection with the nut, the first plate (1221), the second plate (1222), the third plate (1223) and the bolts enclose mounting holes allowing a cross bar of the high voltage line tower (100) to pass through.
4. An assembly ladder for the overhaul of power transmission lines according to claim 3, wherein the tower connectors (12) further comprise a cross plate (121), wherein at least two connectors (122) are arranged at intervals on the cross plate (121), and the cross plate (121) is hinged to one end of the first ladder (11).
5. An assembly ladder for line servicing according to claim 1, characterized in that it comprises a plurality of said third ladders (31), a plurality of said third ladders (31) being located between both the tower attachment ladder (1) and the line attachment ladder (2), two adjacent third ladders (31) being connected by means of the connecting assembly (4).
6. The assembly ladder for overhauling a power transmission line according to claim 1, wherein the connecting assembly (4) comprises two connecting structures (41) and a connecting piece (42) for connecting the two connecting structures (41), the other end of the third ladder (31), the other end of the first ladder (11) and the other end of the second ladder (21) are both provided with the connecting structures (41), the connecting structures (41) are bolts, the connecting piece (42) is a threaded sleeve, and both ends of the threaded sleeve can be in threaded connection with the bolts.
7. The assembly ladder stand for overhauling a power transmission line according to claim 6, wherein two bolts of the connecting assembly (4) are provided with clamping grooves (411), the two clamping grooves (411) are oppositely arranged, a through groove (421) is formed in the inner wall of the screw sleeve, the connecting assembly (4) further comprises a clamping key (412), and the clamping key (412) can be clamped in the through groove (421) and the two clamping grooves (411) at the same time.
8. The assembled ladder stand for overhauling a power transmission line according to claim 7, wherein the clamping key (412) comprises a key body (4122) and a key head (4121), the key head (4121) is fixedly connected with the key body (4122), the key body (4122) can be simultaneously inserted into the through groove (421) and the two clamping grooves (411), and the key head (4121) is abutted to the threaded sleeve.
9. An assembled ladder stand for overhauling a power transmission line according to any one of claims 6 to 8, wherein the first ladder stand (11) comprises a first ladder frame (111) and first footrests (112) alternately arranged on both sides of the first ladder frame (111), the tower connector (12) is arranged at one end of the first ladder frame (111), and the connecting structure (41) is arranged at the other end of the first ladder frame (111);
the second ladder stand (21) comprises a second ladder frame (211) and second pedals (212) alternately arranged at two sides of the second ladder frame (211), the circuit connector (22) is arranged at one end of the second ladder frame (211), and the connecting structure (41) is arranged at the other end of the second ladder frame (211);
the third ladder (31) comprises a third ladder frame (311) and third pedals (312) alternately arranged on two sides of the third ladder frame (311), and the connecting structures (41) are arranged at two ends of the third ladder frame (311).
10. The assembly ladder for overhauling a power transmission line according to claim 9, wherein the first pedal (112) has a deployed position perpendicular to the first ladder frame (111) and a stowed position parallel to the first ladder frame (111), and the first pedal (112) can rotate between the deployed position and the stowed position;
the first ladder stand (11) further comprises a clamping table arranged on the first ladder frame (111), and when the first pedal (112) is located at the unfolding position, the first pedal (112) is abutted to the clamping table.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011164344.8A CN112412324A (en) | 2020-10-27 | 2020-10-27 | A equipment cat ladder for transmission line overhauls |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011164344.8A CN112412324A (en) | 2020-10-27 | 2020-10-27 | A equipment cat ladder for transmission line overhauls |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112412324A true CN112412324A (en) | 2021-02-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011164344.8A Pending CN112412324A (en) | 2020-10-27 | 2020-10-27 | A equipment cat ladder for transmission line overhauls |
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| Country | Link |
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| CN (1) | CN112412324A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB108585A (en) * | 1916-10-12 | 1917-08-16 | William Prescott | Improvements in Lock Nuts. |
| CN2266052Y (en) * | 1996-02-07 | 1997-10-29 | 迟宏刚 | Theft-proof fastener of check bolt and nut |
| CN206319825U (en) * | 2016-11-28 | 2017-07-11 | 国家电网公司 | Steel tube tower in electric transmission line aids in climbing tool |
| CN209294221U (en) * | 2018-09-15 | 2019-08-23 | 杨富云 | A kind of checknut fastener |
| CN211173892U (en) * | 2019-10-10 | 2020-08-04 | 广东电网有限责任公司 | Composite insulator cat ladder |
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2020
- 2020-10-27 CN CN202011164344.8A patent/CN112412324A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB108585A (en) * | 1916-10-12 | 1917-08-16 | William Prescott | Improvements in Lock Nuts. |
| CN2266052Y (en) * | 1996-02-07 | 1997-10-29 | 迟宏刚 | Theft-proof fastener of check bolt and nut |
| CN206319825U (en) * | 2016-11-28 | 2017-07-11 | 国家电网公司 | Steel tube tower in electric transmission line aids in climbing tool |
| CN209294221U (en) * | 2018-09-15 | 2019-08-23 | 杨富云 | A kind of checknut fastener |
| CN211173892U (en) * | 2019-10-10 | 2020-08-04 | 广东电网有限责任公司 | Composite insulator cat ladder |
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Application publication date: 20210226 |