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Portable curling ladder

A retractable ladder and portable technology, which can be used in ladders, hoisting devices, buildings, etc., can solve the problems of increased space occupation, large space occupation, and unfavorable daily use, and achieve the effect of reducing space occupation.

Inactive Publication Date: 2013-12-04
XI AN JIAOTONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, there are many kinds of ladder products, most of which can meet the basic climbing functions, but with the increase of climbing height, the overall length of the ladder will also increase. The longer the ladder length, the larger the space occupied, which is not conducive to daily use
Generally, straight ladders or herringbone ladders are selected when the climbing height is low, and telescopic ladders are selected for higher ones. When the straight ladders and telescopic ladders cannot meet the requirements, the ladder truck is generally used, and the corresponding occupied space increases with the climbing height. increased by the increase

Method used

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  • Portable curling ladder
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  • Portable curling ladder

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Embodiment Construction

[0023] The present invention will be described in detail below in conjunction with the accompanying drawings.

[0024] Such as figure 1 As shown, a portable retractable ladder includes a ladder section 1, a reel 2, a base 3 and a drum 11. The base 3 is a cuboid with a hollow interior. In the hole, adjust the level of the base 3, and the rollers 6 are fixed on the four corners of the bottom plate of the base 2 for the movement of the retractable ladder. The pull rod 12 is hinged at the bottom of the base 3, and the pull rod 12 can rotate up and down. The section can be pulled out and inserted into the fixing hole 8 to limit the movement of the ladder section 1.

[0025] Such as figure 2 As shown, the reel 2 is embedded inside the base 3. The reel 2 has the same shape as the "whistle", and has a cylindrical thin-walled shell and an outlet tangent to the shell. The shape of the outlet is like a "whistle". The two ends of the drum 11 There is a small shaft, the small shaft is ...

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PUM

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Abstract

A portable curling ladder adopts the structure that a base is provided with adjusting bolts, idler wheels are fixed on the base, a pull rod is connected to the bottom of the base, a reel is embedded into the base and is in the same shape as a 'whistle', ladder sections are wound on a drum and curled in the reel, rollers and a rubber guide ring are designed on the reel and at the 'whistle mouth', the joints of the adjacent ladder sections are connected through tailor-made structures, and the reel can control the extending angle of elevation of the ladder through a small handwheel. The portable curling ladder can be freely curl in and extend out, occupies a maximally reduced space after being curled in, is convenient to carry and move, and can be widely used in daily life as well as risk and disaster relief.

Description

technical field [0001] The invention relates to a retractable ladder, in particular to a portable retractable ladder. Background technique [0002] At present, there are many kinds of ladder products, most of which can meet the basic climbing functions, but with the increase of climbing height, the overall length of the ladder will also increase. The longer the ladder length, the larger the space occupied, which is not conducive to daily use . Generally, straight ladders or herringbone ladders are selected when the climbing height is low, and telescopic ladders are selected for higher ones. When the straight ladders and telescopic ladders cannot meet the requirements, the ladder truck is generally used, and the corresponding occupied space increases with the climbing height. increased by the increase. We use the ratio of the total length of the ladder to the length of the occupied space to measure the size of the space occupied by the ladder. This ratio is called the expan...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E06C1/38E06C7/00B66D1/28
Inventor 赵升吨孟德安韩晓兰刘辰
Owner XI AN JIAOTONG UNIV