Crawling ladder with double pipes and safety cage for steel pipe pole

A technology of steel pipe rods and pipe belts, which is applied to ladders, buildings, building structures, etc., can solve the problems of hidden safety hazards, no safety cages for climbing ladders, and reaching 60 meters or higher, so as to increase stability and increase climbing. The effect of climbing space and protecting personal safety

Active Publication Date: 2015-08-26
STATE GRID CORP OF CHINA +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, due to the limited height of steel pipe poles, climbing devices for high-altitude operations need to be installed during line erection and maintenance. The conventional method in the prior art adopts the form of a single-pipe ladder, and there is no safety cage outside the ladder, and the voltage level of 110kV and above Line steel pipe poles, especially high spanning poles, generally have a height of more than 30 meters, and some have a height of 60 meters or even higher
At present, steel pipe poles generally use single-tube ladders without cages, which poses a great safety hazard for installers and maintenance personnel who need to work at heights

Method used

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  • Crawling ladder with double pipes and safety cage for steel pipe pole
  • Crawling ladder with double pipes and safety cage for steel pipe pole
  • Crawling ladder with double pipes and safety cage for steel pipe pole

Examples

Experimental program
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Effect test

Embodiment 1

[0024] Such as Figure 1 to Figure 3 As shown, the steel pipe rod uses a double-pipe ladder with a protective cage, including a climbing structure and a protective body. The ladder includes a steel pipe 1 and a steel pipe 2. A climbing cross brace 3 and a groove-shaped climbing and fixing iron piece 4 are set on the steel pipe. The connecting angle steel 5 is set on the fixed iron piece 4, and the length of the steel pipe 1 and the steel pipe 2 is 2 meters, and the two ends of the climbing cross brace round steel 3, the groove type climbing fixed iron piece 4 and the connecting angle steel 5 are connected with the steel pipe 1 and the steel pipe respectively. 2 Welded connection, the cross-section of the cross brace round steel 3 is triangular, the bottom edge is parallel to the horizontal plane, the two hypotenuses of the triangle are provided with rubber insulating material 10, the connecting angle steel 5 is connected with the groove-shaped climbing and fixing iron parts 4 w...

Embodiment 2

[0027] The protective body comprises a semicircular retainer 6, a protective body fixing iron piece 7 and a vertical plaque steel 8 of the protective body support part, and the vertical plaque steel 8 of the protective body support part is arranged in sections, that is, one or A plurality of vertical plaque steel 8, the vertical plaque steel 8 is connected with the fixing hole 11 through bolts, and the vertical plaque steel 8 is connected with the fixing hole 11 to fix the adjacent cage 6 with vertical bolts. This design can flexibly adjust the vertical plaque steel between the cages distribution density, and more convenient disassembly and assembly.

[0028] In the above two embodiments, cage ladders of different lengths can be installed for steel pipe poles of different heights during actual operation, and a gap of 100 mm is reserved at the junction of the ladder sections when assembling ladders of different specifications, so that the ladders can form standard ladder section...

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Abstract

The invention provides a crawling ladder with double pipes and a safety cage for a steel pipe pole. The crawling ladder comprises a climbing structure and a protection body, wherein the climbing structure comprises two steel pipes; climbing cross arms and climbing fixing iron pieces are arranged on the steel pipes; two ends of each climbing cross arm and those of each climbing fixing iron piece are respectively, vertically and fixedly connected with the two steel pipes; the number of the climbing cross arms as well as that of the climbing fixing iron pieces is more than one; connecting parts are arranged on the climbing fixing iron pieces; the protection body comprises a plurality of protection rings and protection body fixing iron piece; two ends of the protection rings are connected with the two steel pipes of the climbing structure through the protection body fixing iron pieces. A good guarantee is provided for stable mounting of the crawling ladder and the safety of maintainers. In addition, standard small-sized length design is adopted, rod sections of any standard lengths can be arranged, and the processing and mounting standardization is facilitated.

Description

technical field [0001] The invention relates to a high-altitude operation device matched with steel pipe poles, in particular to a climbing ladder with double pipes and protective cages for steel pipe poles. Background technique [0002] With the rapid development of the country's national economy, the investment in power infrastructure is increasing, and the use of transmission line towers is increasing. The market demand for steel pipe poles for transmission lines with voltage levels of 110kV and above is very large. In particular, 110kV ~ 220kV steel pipe poles have a huge market space due to their simple structure, convenient construction and installation, small footprint, and beautiful appearance. [0003] However, due to the limited height of steel pipe poles, climbing devices for high-altitude operations need to be installed during line erection and maintenance. The conventional method in the prior art adopts the form of a single-pipe ladder, and there is no safety ca...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E06C1/08E06C7/08E06C7/18
CPCE06C1/08E06C7/08E06C7/185
Inventor 胡鑫王玉杰刘湘莅郭新菊席小娟刘存凯李旭阳郭正位赵旭宋宏鹏
Owner STATE GRID CORP OF CHINA
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