CN209398345U - A kind of overhead transmission line three-section type maintenance ladder - Google Patents
A kind of overhead transmission line three-section type maintenance ladder Download PDFInfo
- Publication number
- CN209398345U CN209398345U CN201821600845.4U CN201821600845U CN209398345U CN 209398345 U CN209398345 U CN 209398345U CN 201821600845 U CN201821600845 U CN 201821600845U CN 209398345 U CN209398345 U CN 209398345U
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- ladder
- hook
- section
- flat ladder
- segment
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Abstract
A kind of overhead transmission line three-section type maintenance ladder, including maintenance ladder and reinforcing bar hook；Maintenance ladder is made of first segment flat ladder, the second section flat ladder and third section flat ladder；The both ends of first segment flat ladder, the second section flat ladder and third section flat ladder offer threaded hole A；Fastening is bolted between first segment flat ladder and the second section flat ladder and between the second section flat ladder and third section flat ladder；Reinforcing bar hook is made of long hook and U-shaped part；Reinforcing bar hook at the top of bolt and first segment flat ladder by being fixedly connected；Third section flat ladder two sides of the bottom are provided with the hook for being fixed on maintenance ladder on cross-arm.The utility model structure is simple, can dismount, and is readily transported and places；And the activity duration can be shortened, reduce high altitude operation personnel labor intensity and security risk.
Description
Technical field
The utility model belongs to electric system operation and maintenance tools technical field, and in particular to a kind of three-section type maintenance ladder.
Background technique
In the transmission line of electricity that the dangerous high mountain of geographical environment, valley are run, especially in severe winter and rainy season, transmission line of electricity by
The severe Effect of Natural Disaster such as strong wind, landslide, mud-rock flow, Qiang Lei electricity, sleet and snow ice is very big, often results in a large amount of transmission lines of electricity not
With the defect of degree, bury a large amount of security risk for the safe operation of power grid, need to electric transmission line isolator, damper,
The a large amount of service work of the developments such as drainage thread wire clamp, conducting wire, and previous service work is all with staff's outlet and to be sitting in
Operation is carried out on conducting wire or using bulky monoblock type ladder, there are higher peaces to high altitude operation personnel for artificial outlet construction
Full blast danger, and large labor intensity, and bulky monoblock type ladder operation is utilized, for high mountain gorge, precipitous cliff location shaft tower
There is very big difficulty in the transport of operation, ladder.
Summary of the invention
The purpose of this utility model be solve problem of the prior art, provide one kind be easy to dismount, structure it is simple and light
Overhead transmission line three-section type maintenance ladder, electric transmission line isolator, damper, drainage thread wire clamp, conducting wire etc. are examined with facilitating
It repairs.
The purpose of this utility model is achieved by the following technical solution.
A kind of overhead transmission line three-section type maintenance ladder, including maintenance ladder and reinforcing bar hook；The maintenance ladder by first segment flat ladder,
Second section flat ladder and third section flat ladder composition；The both ends of first segment flat ladder, the second section flat ladder and third section flat ladder offer spiral shell
Pit A；It is bolted between first segment flat ladder and the second section flat ladder and between the second section flat ladder and third section flat ladder tight
Gu；Reinforcing bar hook is made of long hook and U-shaped part, and the bottom of long hook offers external screw thread, U-shaped part middle offer with outside
The threaded hole B being threadedly engaged；After long hook is rotated in threaded hole B by external screw thread, fastened with nut；In two ends of U-shaped part
It is respectively equipped with the symmetrical threaded hole C matched with the threaded hole A in first segment flat ladder；The reinforcing bar hook passes through bolt and first
It is fixedly connected at the top of section flat ladder；Third section flat ladder two sides of the bottom are provided with the hook for being fixed on maintenance ladder on cross-arm.
Preferably, hook described in the utility model is that ring-shaped hook is either hingedly made of two semicircular structures.
Preferably, long hook described in the utility model is rectangular hook or crotch.
The utility model has a power failure for 35-220kV or more transmission line of electricity replaces the equipment such as insulator, damper, wire clamp
Maintenance.
The utility model has the advantages that the utility model can select the connection length of ladder according to the actual conditions of circuit homework point, shorten
Activity duration reduces high altitude operation personnel labor intensity and security risk, improves maintenance craft；Simultaneously because using dividing
The assembling of section formula can separate transport and solve the problems, such as transport difficult.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model；
Fig. 2 is the utility model reinforcing bar hook structure schematic diagram；
Fig. 3 is the hook schematic diagram being hingedly made of two semicircular structures.
Specific embodiment
A kind of overhead transmission line three-section type maintenance ladder, including maintenance ladder 1 and reinforcing bar hook 2；The maintenance ladder 1 is put down by first segment
Terraced 11, second section flat ladder 12 and third section flat ladder 13 form；First segment flat ladder 11, the second section flat ladder 12 and third section flat ladder 13
Both ends offer threaded hole A14；Between first segment flat ladder 11 and the second section flat ladder 12 and the second section flat ladder 12 and third section
Fastening is bolted between flat ladder 13；
The reinforcing bar hook 2 is made of long hook 21 and U-shaped part 22, and the bottom of long hook 21 offers external screw thread 23, U-shaped part 22
Middle offers the threaded hole B cooperated with external screw thread 23；After long hook 21 is rotated in threaded hole B by external screw thread 23, spiral shell is used
Cap 24 fastens；The symmetrical threaded hole matched with the threaded hole A in first segment flat ladder is respectively equipped in 22 two ends of U-shaped part
C25；
The reinforcing bar hook 2 at the top of bolt and first segment flat ladder 11 by being fixedly connected；13 two sides of the bottom of third section flat ladder
It is provided with the hook 3 for being fixed on maintenance ladder on cross-arm.
Hook 3 described in the utility model is either hinged by two semicircular structures for ring-shaped hook (as shown in fig. 1)
It forms (as shown in Figure 3).
Long hook 21 described in the utility model is rectangular hook (as shown in fig. 1) or crotch (as shown in Figure 2).
When the utility model is used, long hook 21 is hooked on conducting wire, operating personnel is by 3 clasp joints of hook on cross-arm
Can be sitting in maintenance ladder and operate, it is convenient, safety, comfortable, it is also not easy to fatigue even if working long hours, improve work efficiency and
Safety.
Claims (3)
1. a kind of overhead transmission line three-section type maintenance ladder, which is characterized in that including maintenance ladder (1) and reinforcing bar hook (2)；
The maintenance ladder (1) is made of first segment flat ladder (11), the second section flat ladder (12) and third section flat ladder (13)；First segment is flat
The both ends of terraced (11), the second section flat ladder (12) and third section flat ladder (13) offer threaded hole A (14)；First segment flat ladder (11)
Fastening is bolted between the second section flat ladder (12) and between the second section flat ladder (12) and third section flat ladder (13)；
The reinforcing bar hook (2) is made of long hook (21) and U-shaped part (22), and the bottom of long hook (21) offers external screw thread (23), U
Shape part (22) middle offers the threaded hole B with external screw thread (23) cooperation；Long hook (21) is rotated by external screw thread (23) into spiral shell
After in pit B, fastened with nut (24)；It is respectively equipped with and the threaded hole A phase in first segment flat ladder in (22) two ends of U-shaped part
The symmetrical threaded hole C (25) of cooperation；
The reinforcing bar hook (2) at the top of bolt and first segment flat ladder (11) by being fixedly connected；Third section flat ladder (13) bottom two
Side is provided with the hook (3) for being fixed on maintenance ladder on cross-arm.
2. overhead transmission line three-section type maintenance ladder according to claim 1, which is characterized in that the hook (3) is that annular is hung
Hook is either hingedly made of two semicircular structures.
3. overhead transmission line three-section type maintenance ladder according to claim 1, which is characterized in that the long hook (21) is rectangular hook
Or crotch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821600845.4U CN209398345U (en) | 2018-09-29 | 2018-09-29 | A kind of overhead transmission line three-section type maintenance ladder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821600845.4U CN209398345U (en) | 2018-09-29 | 2018-09-29 | A kind of overhead transmission line three-section type maintenance ladder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209398345U true CN209398345U (en) | 2019-09-17 |
Family
ID=67878064
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821600845.4U Active CN209398345U (en) | 2018-09-29 | 2018-09-29 | A kind of overhead transmission line three-section type maintenance ladder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209398345U (en) |
-
2018
- 2018-09-29 CN CN201821600845.4U patent/CN209398345U/en active Active
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