CN109386230B - Sedimentation type wire hanging ladder - Google Patents
Sedimentation type wire hanging ladder Download PDFInfo
- Publication number
- CN109386230B CN109386230B CN201811466562.XA CN201811466562A CN109386230B CN 109386230 B CN109386230 B CN 109386230B CN 201811466562 A CN201811466562 A CN 201811466562A CN 109386230 B CN109386230 B CN 109386230B
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- Prior art keywords
- hanging
- wire hanging
- hanging ladder
- frame
- joint
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- 238000004062 sedimentation Methods 0.000 title claims abstract description 22
- 239000012212 insulator Substances 0.000 claims description 13
- 238000005452 bending Methods 0.000 claims description 5
- 210000001503 joint Anatomy 0.000 claims description 5
- 230000000712 assembly Effects 0.000 claims description 3
- 238000000429 assembly Methods 0.000 claims description 3
- 230000005540 biological transmission Effects 0.000 claims description 3
- 229910000831 Steel Inorganic materials 0.000 claims description 2
- 229910000746 Structural steel Inorganic materials 0.000 claims description 2
- 239000010959 steel Substances 0.000 claims description 2
- 238000007493 shaping process Methods 0.000 claims 1
- 238000006243 chemical reaction Methods 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 12
- 230000009194 climbing Effects 0.000 description 3
- 238000010276 construction Methods 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 3
- 239000000725 suspension Substances 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000011152 fibreglass Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Classifications
-
- 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
-
- 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
- E06C1/04—Ladders for resting against objects, e.g. walls poles, trees
- E06C1/08—Ladders for resting against objects, e.g. walls poles, trees multi-part
- E06C1/12—Ladders for resting against objects, e.g. walls poles, trees multi-part extensible, e.g. telescopic
-
- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06C—LADDERS
- E06C7/00—Component parts, supporting parts, or accessories
- E06C7/48—Ladder heads; Supports for heads of ladders for resting against objects
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Ladders (AREA)
Abstract
The invention provides a sedimentation type wire hanging ladder, which comprises a hanging ladder body, a limiting joint movably connected to the lower end of the hanging ladder body, a self-locking wire hanging head matched with wire hanging, and a hanging head connecting frame for movably connecting the self-locking wire hanging head to the lower end of the limiting joint; the self-locking wire hanging head comprises a transverse connecting seat, a first extending part and a second extending part, wherein the first extending part extends downwards vertically along one side end of the transverse connecting seat, and the second extending part extends downwards vertically along the other side end of the transverse connecting seat; the tail end of the first extension part is inwards recessed to form an arc shape, and the tail end of the second extension part is bent to form a barb which is in hooking fit with the lead. The self-locking wire hanging head is used as a wire connecting stressed hanging buckle, the hanging head connecting frame is used as an angle conversion structure, and the self-locking wire hanging head is matched with a limit joint to be connected with a hanging ladder body, so that a safe and reliable channel is provided for workers entering the wire to perform work.
Description
Technical Field
The invention relates to the technical field of electric power overhaul, in particular to a novel sedimentation type wire hanging ladder.
Background
In construction and operation maintenance of a power transmission line, construction and maintenance personnel are often required to enter a wire from a tower cross arm to perform work, such as wire repair, vibration damper reset and replacement, insulator replacement and the like. The current access methods mainly comprise two types: firstly, entering along the suspension insulator string (the tower cross arm is positioned above the lead relative to the arrangement position of the lead, and the suspension insulator string is vertically arranged between the two, so that workers are required to climb down to the lead along the suspension insulator string during operation); second, a rope ladder is used. Regarding the first method, there are different drawbacks when facing insulators of different materials: (1) For the glass fiber reinforced plastic insulator, the surface is smooth, so that sideslip easily occurs in the climbing process, and the insulator is likely to be broken or self-exploded; (2) For the composite insulator, the specification requires that the insulator is not allowed to be stepped on, and the surface of the insulator is easily damaged, so that the insulating performance of the insulator is affected. In the second method, the climbing of personnel is difficult due to the limitation of the characteristics of the software, and high requirements on personnel business skills and physical quality are provided. Therefore, the two main methods adopted at present have the problems of low safety coefficient, irregular flow and unreliable operation.
In order to reduce the risk coefficient of the incoming wires, a new method is tried in construction, operation and maintenance, namely, the upper end of a hard vertical ladder is tied to a cross arm by ropes, and then the wires are entered. However, because the hard vertical ladder end can not be fixed, the condition of large swing can often appear in the climbing process, and potential safety hazards exist anyway.
Accordingly, there is an urgent need to improve the existing manner of entering the wire to improve the safety, reliability and standardization of the work of entering the wire, and provide a safe and reliable channel for the staff who enters the wire to perform work.
Disclosure of Invention
The invention aims to solve the technical problem of providing a novel sedimentation type wire hanging ladder which is convenient to operate, standard to use, safe and reliable, and provides a safe and reliable channel for workers entering a wire to perform work by fixedly installing the sedimentation type wire hanging ladder between a cross arm and the wire.
The invention adopts the following technical scheme to solve the technical problems:
the novel sedimentation type wire hanging ladder comprises a hanging ladder body, a limit joint movably connected to the lower end of the hanging ladder body, a self-locking wire hanging head matched with the wire hanging, and a hanging head connecting frame movably connecting the self-locking wire hanging head to the lower end of the limit joint; the self-locking wire hanging head is of a hook structure and specifically comprises a transverse connecting seat, a first extending part and a second extending part, wherein the first extending part extends vertically downwards along one side end of the transverse connecting seat, and the second extending part extends vertically downwards along the other side end of the transverse connecting seat; the tail end of the first extension part is recessed inwards to form an arc shape, the tail end of the second extension part continues to extend into an opening formed by the transverse connecting seat, the first extension part and the second extension part in a surrounding mode, a barb is formed in a bending mode, and the barb is in hanging fit with the lead.
As one of the preferable modes of the invention, the upper end of the hanging ladder body is also inserted with an extension ladder.
As one of the preferable modes of the invention, the limit joint is specifically a plurality of joint rods which are sequentially connected up and down, and each joint rod is connected through a bolt assembly, wherein each joint rod which is connected up and down can rotate relatively along the abutting surface of the joint rod and the bolt assembly.
As one of the preferable modes of the invention, the upper and lower end section bars of the limit joint are respectively connected with the hanging ladder body and the hanging head connecting frame by adopting bolt assemblies, and can simultaneously rotate relatively along the respective abutting surfaces.
As one of the preferable modes of the invention, the self-locking wire hanging head is of an integrated bending and forming structure.
As one of the preferred modes of the invention, the included angle between the tail end of the second extension part and the bending part of the barb is 135 degrees.
As one of the preferable modes of the invention, the hanging head connecting frame specifically comprises a U-shaped frame and a funnel frame with an open tail end; the opening of the U-shaped frame faces to the direction of the hanging ladder body, the front end of the U-shaped frame is vertically connected with the back end of the transverse connecting seat, and the funnel frame with the open tail end is arranged in the opening of the U-shaped frame.
As one of the preferable modes of the invention, the front end of the U-shaped frame is vertically connected with the back end of the transverse connecting seat through a bolt component.
As one of the preferable modes of the invention, the funnel stand with the open end specifically comprises a transverse stand, an inclined stand and a vertical stand, wherein the transverse stand is in parallel and butt joint with the U-shaped stand, the inclined stand extends radially along the two ends of the transverse stand, and the vertical stand is arranged at the tail ends of the two inclined stands; the vertical rack is movably connected with a limit joint at the upper end of the vertical rack.
As one of the preferable modes of the invention, the invention is suitable for the operation of entering the conducting wire from the cross arm of the angle iron tower of the 110-220 KV power transmission line.
Compared with the prior art, the invention has the advantages that:
(1) The device has the advantages of simple structure, convenient operation, standard use, safety and reliability, greatly reduces the labor intensity of operators, reduces the error rate of the operators in operation, and simultaneously improves the safety of the operators and equipment;
(2) A sedimentation type wire hanging ladder is fixedly arranged between the cross arm and the wire, so that a safe and reliable channel is provided for workers who enter the wire to perform work;
(3) The upper end of the hanging ladder body can be inserted with an extension ladder to respectively meet the different length requirements of 110 kilovolts and 220 kilovolts.
Drawings
Fig. 1 is a schematic diagram of the overall structure of the novel sedimentation type wire hanging ladder in embodiment 1;
FIG. 2 is a right side schematic view of FIG. 1;
FIG. 3 is an enlarged schematic view of the portion A in FIG. 1;
fig. 4 is an enlarged schematic view of the B portion in fig. 2.
In the figure: 1 is a hanging ladder body, 2 is a limit joint, 21 is a section bar, 3 is a self-locking wire hanging head, 31 is a transverse connecting seat, 32 is a first extending part, 33 is a second extending part, 34 is a barb, 4 is a hanging head connecting frame, 41 is a U-shaped frame, 42 is a funnel frame with an open tail end, 421 is a transverse frame, 422 is an inclined frame, 423 is a vertical frame, and 5 is an extending ladder.
Detailed Description
The following describes in detail the examples of the present invention, which are implemented on the premise of the technical solution of the present invention, and detailed embodiments and specific operation procedures are given, but the scope of protection of the present invention is not limited to the following examples.
Example 1
As shown in fig. 1-4, the novel sedimentation type wire hanging ladder of the embodiment comprises a hanging ladder body 1, two groups of limit joints 2 movably connected to the lower end of the hanging ladder body 1, a self-locking wire hanging head 3 matched with wire hanging, and a hanging head connecting frame 4 movably connecting the self-locking wire hanging head 3 to the lower ends of the two limit joints 2; the upper end of the hanging ladder body 1 is also provided with an extension ladder 5 in an inserting mode so as to meet different length requirements under 110kV and 220kV respectively.
Each group of limiting joints 2 is specifically provided with two joint rods 21 which are sequentially connected up and down; the upper end section bar 21 and the lower end section bar 21 of the limiting joint 2 are connected with the hanging ladder body 1 and the hanging head connecting frame 4 through bolt assemblies, and simultaneously can rotate relatively along respective abutting surfaces.
The hanging head connecting frame 4 specifically comprises a U-shaped frame 41 and a funnel frame 42 with an open end; the opening of the U-shaped frame 41 faces the direction of the hanging ladder body 1, the front end of the U-shaped frame 41 is vertically connected with the back end of the self-locking wire hanging head 3 through a bolt component, and a funnel frame 42 with an open tail end is arranged in the opening of the U-shaped frame 41; the funnel stand 42 with an open end specifically comprises a transverse stand 421 which is in parallel contact with the U-shaped stand 41, inclined stands 422 which extend radially along two ends of the transverse stand 421, and vertical stands 423 which are arranged at the ends of the two inclined stands 422; the vertical shelf 423 is movably connected with the limit joint 2 at the upper end of the vertical shelf.
The self-locking wire hanging head 3 is in an integrated bent hook structure and comprises a transverse connecting seat 31, a first extending part 32 vertically extending downwards along one side end of the transverse connecting seat 31 and a second extending part 33 vertically extending downwards along the other side end of the transverse connecting seat 31; the tail end of the first extension part 32 is recessed inwards to form an arc shape, the tail end of the second extension part 33 continues to extend into an opening surrounded by the transverse connecting seat 31, the first extension part 32 and the second extension part 33, and is bent to form a barb 34 matched with the wire in a hanging manner, and the included angle of the bent part is 135 degrees; wherein, the back end of the transverse connecting seat 31 is vertically connected with the front end of the U-shaped frame 41.
The installation method comprises the following steps:
referring to fig. 2-4, the hanging ladder body 1, the extension ladder 5, the limiting joint 2, the hanging head connecting frame 4 and the self-locking wire hanging head 3 are assembled into a whole in the mode of fig. 1 by using a bolt assembly; during the assembly process, the bolts for connecting the upper and lower section rods 21 of the limiting joint 2 should not be too tightly retracted, otherwise, the realization of reverse folding and sedimentation is relatively difficult.
The application method and the principle are as follows:
the method comprises the following steps: before entering a wire from a cross arm, connecting the uppermost end of the device of the embodiment with the cross arm by using a backup protection rope, and then hanging the self-locking wire hanging head 3 on the wire; then, stepping down obliquely by using a foot, applying a horizontal oblique downward force to the ladder to enable the limiting joint 2 to rotate, automatically settling the novel sedimentation type wire hanging ladder to a limiting position, and then binding the upper end of the hanging ladder body 1 on the angle steel tower cross arm by using a soft jack; finally, the personnel can step on the safe and reliable wire for entering of the hanging ladder of the embodiment after putting the safety belt.
Principle of: the device uses the self-locking wire hanging head 3 as a wire connecting stressed hanging buckle, uses the hanging head connecting frame 4 as an angle conversion structure, is matched with the limit joint 2 to be connected with the hanging ladder body 1, and the upper end of the hanging ladder body 1 can be inserted with the extension ladder 5 to respectively meet the different length requirements of 110kV and 220 kV; the self-locking wire hanging head 3 is hung on the wire, and the self-locking wire hanging head 3 is subjected to micro deformation due to the fact that the self-locking wire hanging head is subjected to the gravity of a novel sedimentation type wire hanging ladder and a human body, so that the wire access is blocked, and the self-locking is realized; the spacing joint 2 makes the novel subsidence type wire hang the ladder lower extreme and is less than the wire, makes novel subsidence type wire hang the ladder and the line formation of wire, insulator stable triangle-shaped for get into the wire from the shaft tower cross arm more stable, safety.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the invention.
Claims (6)
1. The sedimentation type wire hanging ladder is characterized by comprising a hanging ladder body, a limit joint movably connected to the lower end of the hanging ladder body, a self-locking wire hanging head matched with wire hanging, and a hanging head connecting frame movably connecting the self-locking wire hanging head to the lower end of the limit joint; the limiting joint is specifically provided with a plurality of joint rods which are sequentially connected up and down, and each joint rod is connected through a bolt assembly, wherein each joint rod which is connected up and down can rotate relatively along the abutting surface of the joint rod and the bolt assembly; the self-locking wire hanging head is of a hook structure and specifically comprises a transverse connecting seat, a first extending part and a second extending part, wherein the first extending part extends vertically downwards along one side end of the transverse connecting seat, and the second extending part extends vertically downwards along the other side end of the transverse connecting seat; the tail end of the first extension part is recessed inwards to form an arc shape, the tail end of the second extension part continues to extend into an opening formed by the transverse connecting seat, the first extension part and the second extension part, and a barb is formed by bending, and the barb is in hooking fit with the lead; in addition, the upper and lower end section bars of the limit joint are respectively connected with the hanging ladder body and the hanging head connecting frame by adopting bolt assemblies, and can simultaneously perform relative rotation along respective abutting surfaces; the hanging head connecting frame specifically comprises a U-shaped frame and a funnel frame with an open tail end; the opening of the U-shaped frame faces the direction of the hanging ladder body, the front end of the U-shaped frame is vertically connected with the back end of the transverse connecting seat, and the funnel frame with the open tail end is arranged in the opening of the U-shaped frame; the funnel frame with the open tail end comprises a transverse frame, an inclined frame and a vertical frame, wherein the transverse frame is in parallel butt joint with the U-shaped frame, the inclined frames extend radially along the two tail ends of the transverse frame respectively, and the vertical frames are arranged at the tail ends of the two inclined frames; the vertical rack is movably connected with a limit joint at the upper end of the vertical rack;
when the uppermost end of the sedimentation type wire hanging ladder is connected with the cross arm by using a backup protection rope, the self-locking wire hanging head is hung on the wire; the foot is used for stepping down the hanging ladder obliquely, a horizontal oblique downward force is applied to the ladder, so that the limiting joint rotates, and the sedimentation type wire hanging ladder automatically descends to a limiting position; then the upper end of the hanging ladder body is bound on the angle steel tower cross arm by a soft jack, and the sedimentation type wire hanging ladder can be stepped on to enter a wire; the lower end of the sedimentation type wire hanging ladder is lower than the wire by the limiting joint, so that the connection line of the sedimentation type wire hanging ladder, the wire and the insulator forms a stable triangle.
2. The sedimentation type wire hanging ladder as claimed in claim 1, wherein an extension ladder is inserted into the upper end of the hanging ladder body.
3. The sedimentation-type wire hanging ladder of claim 1, wherein the self-locking wire hanging head is an integral bending and shaping structure.
4. The sedimentation-type wire hanging ladder of claim 1, wherein the second extension end is angled 135 ° from the bend of the barb.
5. The sedimentation type wire hanging ladder of claim 1, wherein the front end of the U-shaped frame is vertically connected with the back end of the transverse connecting seat through a bolt assembly.
6. A sedimentation type wire hanging ladder as claimed in any one of claims 1-5, which is suitable for 110-220 kv transmission line angle iron towers entering wire operations from cross arms.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811466562.XA CN109386230B (en) | 2018-12-03 | 2018-12-03 | Sedimentation type wire hanging ladder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811466562.XA CN109386230B (en) | 2018-12-03 | 2018-12-03 | Sedimentation type wire hanging ladder |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109386230A CN109386230A (en) | 2019-02-26 |
| CN109386230B true CN109386230B (en) | 2024-03-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811466562.XA Active CN109386230B (en) | 2018-12-03 | 2018-12-03 | Sedimentation type wire hanging ladder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109386230B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202417280U (en) * | 2011-12-02 | 2012-09-05 | 河南省电力公司新乡供电公司 | Multifunctional hanging ladder |
| CN203114144U (en) * | 2013-03-29 | 2013-08-07 | 国家电网公司 | Overhung maintenance hook ladder |
| CN206267776U (en) * | 2016-11-14 | 2017-06-20 | 云南电网有限责任公司曲靖供电局 | Safeguard the hanging ladder of straight line composite insulation substring |
| CN209469366U (en) * | 2018-12-03 | 2019-10-08 | 国网安徽省电力有限公司滁州供电公司 | A kind of new take-off formula conducting wire hanging ladder |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20110155881A1 (en) * | 2009-12-28 | 2011-06-30 | Carlos Reyes | Dispenser hook |
-
2018
- 2018-12-03 CN CN201811466562.XA patent/CN109386230B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202417280U (en) * | 2011-12-02 | 2012-09-05 | 河南省电力公司新乡供电公司 | Multifunctional hanging ladder |
| CN203114144U (en) * | 2013-03-29 | 2013-08-07 | 国家电网公司 | Overhung maintenance hook ladder |
| CN206267776U (en) * | 2016-11-14 | 2017-06-20 | 云南电网有限责任公司曲靖供电局 | Safeguard the hanging ladder of straight line composite insulation substring |
| CN209469366U (en) * | 2018-12-03 | 2019-10-08 | 国网安徽省电力有限公司滁州供电公司 | A kind of new take-off formula conducting wire hanging ladder |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109386230A (en) | 2019-02-26 |
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