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Collapsible mechanism for telescopic ladder

A technology of telescopic ladders and ladders, which is applied in the direction of ladders, building structures, buildings, etc., and can solve the problems of ladders being difficult to fold and buttons being difficult to control the movement of lock pins, etc., achieving the effect of convenient and quick installation

Active Publication Date: 2017-02-01
FOSHAN CITY SHUNDE DISTRICT WANYI HOUSEHOLD ARTICLE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Because the lock pins of the ladder at the lower level are under greater pressure, it is difficult to control the movement of the lock pins through the buttons of the above structure, so that the ladder is difficult to retract

Method used

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  • Collapsible mechanism for telescopic ladder
  • Collapsible mechanism for telescopic ladder
  • Collapsible mechanism for telescopic ladder

Examples

Experimental program
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Embodiment Construction

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

[0024] For a basic implementation, see figure 1 As shown, a retractable ladder retractable mechanism includes at least two ladders that are telescopically matched, and a retractable mechanism is provided between the upper ladder and the lower ladder, and the retractable mechanism includes a The lock pin 3 and the button 1 for pulling the lock pin 3 to make the ladder shrink, are characterized in that: the button 1 is provided with a fulcrum 12, a buckle 13 and a wrench 11, and the button 1 rotates and cooperates with the ladder through the fulcrum 12, and the lock Buckle 13 cooperates with lock pin 3 virtual positions, and wrench 11 is arranged on button 1 side, and stretches out outside the ladder.

[0025] As a more specific embodiment, combining Figure 2 to Figure 5 As shown, the ladder includes a horizontal step tube 2 and a frame tube 7 located ...

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Abstract

The invention relates to a folding mechanism for an extension ladder. The folding mechanism comprises two stages or more than two stages of ladders in extension coordination; a folding mechanism is arranged between each stage of ladder and the next stage of ladder; the folding mechanism comprises a lock pin used for locking the extension state of each ladder and a button used for pulling the lock pin to enable the ladder to shrink, a fulcrum, a buckle and a wrench are arranged on the button, the button is in rotary fit with the ladder through the fulcrum, the buckle is in clearance fit with the lock pin, and the wrench is arranged on one side of the button, and stretches out of the ladder. According to the folding mechanism for the extension ladder, the button adopts a lever principle to control movement of the lock pin, and even if the lock pin is heavily pressed by the upper part ladder, a user can easily pull the button, so that the lock pin is driven to retract, and folding of the ladders is realized.

Description

technical field [0001] The invention relates to a telescopic ladder, in particular to a folding mechanism of the telescopic ladder. Background technique [0002] Chinese Patent No. CN201420281417.5 disclosed on October 1, 2014 a telescopic ladder anti-off structure, including at least two ladders with telescopic fit. The two ends are respectively connected to the frame tube through the guide ring, the guide ring is set on the upper port of the frame tube, the side of the guide ring is provided with a connector to connect with the end of the horizontal step tube, and the frame tube of the upper ladder is set on the lower one In the frame tube of the ladder, and between the upper ladder and the lower ladder, there is a retracting mechanism. The outer wall of the frame tube above the bottom of the ladder is provided with a limit protrusion, the lower end is provided with a bottom cover, and the top end of the guide ring is provided with an inner cover. The flanging, the inner ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E06C7/06E06C7/00
CPCE06C1/383E06C7/00E06C7/06
Inventor 胡明军周涛刘启源
Owner FOSHAN CITY SHUNDE DISTRICT WANYI HOUSEHOLD ARTICLE CO LTD
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