Lock pin assembly, telescopic mechanism, protective fence and tool ladder

A technology of telescopic mechanism and guardrail, applied in the direction of ladders, building structures, buildings, etc., can solve the problem of difficult replacement, and achieve the effect of easy replacement

Pending Publication Date: 2020-02-25
TIANJIN GOLD ANCHOR HOUSEHOLD GOODS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a lock pin assembly, a telescopic mechanism, a guardrail and a tool ladder, so as to alleviate at least the technical problem that the existing lock pin assembly in the prior art is not easy to replace

Method used

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  • Lock pin assembly, telescopic mechanism, protective fence and tool ladder
  • Lock pin assembly, telescopic mechanism, protective fence and tool ladder
  • Lock pin assembly, telescopic mechanism, protective fence and tool ladder

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0064] refer to figure 1 , in the prior art, the lock pin assembly usually includes a metal elastic piece a1 and a movable pin a2, which is shown as a telescoping mechanism installed with the lock pin assembly, including the lock pin assembly, the inner tube a3 and the sliding sleeve a4; the inner tube a3 passes through The sliding sleeve a4, and the inner pipe member a3 can slide relative to the sliding sleeve a4; a cavity is provided inside the inner pipe member a3, and an inner pipe member perforation a31 is opened on the pipe rod wall corresponding to the inner pipe member a3; the metal elastic sheet a1 is installed inside the cavity, and the movable pin a2 is installed inside the inner tube hole a31, and one end of the movable pin a2 is fixed to the metal elastic sheet a1. Under normal conditions, under the action of the metal elastic sheet a1, the other end of the movable pin a2 passes through the inner tube through the inner tube a31 to limit the position of the sliding...

Embodiment 2

[0078] This embodiment provides a telescopic mechanism, refer to Figure 5 , the telescoping mechanism includes an inner rod 5, a sleeve 6 and the locking pin assembly provided in any one of the first embodiment.

[0079] Wherein, the inner rod 5 passes through the sleeve 6, and the inner rod 5 can slide relative to the sleeve 6; the inside of the inner rod 5 is provided with a cavity, and the inner rod 5 is provided with an inner rod on the rod wall corresponding to the cavity. Limit hole 51, the inner rod limit hole 51 runs through the rod wall of the inner rod 5; the sleeve 1 is installed in the cavity, and the lock pin 21 is configured such that in the initial state, the lock pin 21 penetrates the lock pin hole 11 and the inner rod limit The position hole 51 , the second end of the lock pin 21 is located outside the inner rod limit hole 51 to limit the position of the inner rod 5 relative to the sleeve 6 .

[0080] There are many ways to limit the position of the inner ro...

Embodiment 3

[0084] This embodiment provides a kind of guardrail, refer to Image 6 and Figure 7 , the guardrail includes a first support rod 71 , a second support rod 72 and a fence 73 , and the fence 73 is installed between the first support rod 71 and the second support rod 72 . The guardrail also includes two telescopic mechanisms provided in the second embodiment; wherein, the inner rod 5 of one telescopic mechanism forms the first support rod 71, and the inner rod 5 of the other telescopic mechanism forms the second support rod 72. Each sleeve 6 of the mechanism is provided with an installation structure, and the installation structure is configured to be able to install the sleeve 6 on the tool ladder.

[0085] When installing, the two sleeves 6 can be installed on both sides of the tool ladder respectively, and then the two inner rods 5 can be respectively assembled inside the two sleeves 6 and positioned with the lock pin assembly to install the guardrail. For the tool ladder, ...

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PUM

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Abstract

The invention provides a lock pin assembly, a telescopic mechanism, a protective fence and a tool ladder, and relates to the technical field of locking structures. The lock pin assembly comprises a sleeve, a lock pin and an elastic energy storage piece, wherein a lock pin hole is formed in the pipe wall of the sleeve, and the lock pin penetrates through the lock pin hole; the end, facing the interior of the sleeve, of the lock pin serves as the first end of the lock pin; the end, facing the exterior of the sleeve, of the lock pin serves as the second end of the lock pin; the lock pin is further configured in the mode that in the initial state; and the second end of the lock pin penetrates out of the lock pin hole. The elastic energy storage piece is arranged in the sleeve and configured toact on the first end of the lock pin so as to store energy in the process that the lock pin slides towards the interior of the sleeve relative to the lock pin hole under the action of external force,and counter force is applied to the lock pin after the external force disappears so as to drive the lock pin to slide to the initial position relative to the lock pin hole towards the exterior of thesleeve. According to the lock pin assembly, the telescopic mechanism, the protective fence and the tool ladder, the technical problem that at least a lock pin assembly is not easy to replace in the prior art is solved.

Description

technical field [0001] The invention relates to the technical field of locking structures, in particular to a lock pin assembly, a telescopic mechanism, a guardrail and a tool ladder. Background technique [0002] In the prior art, the lock pin assembly is often used as a locking structure to realize the locking function. Specifically, the existing lock pin assembly usually includes a metal elastic sheet and a movable pin, and the telescopic mechanism installed with the lock pin assembly includes a lock pin Assembly, inner pipe fitting and sliding sleeve; the inner pipe fitting passes through the sliding sleeve, and the inner pipe fitting can slide relative to the sliding sleeve; a cavity is arranged inside the inner pipe fitting, and an inner pipe fitting is opened on the pipe wall corresponding to the inner pipe fitting Perforation; the metal elastic sheet is installed inside the cavity, the movable pin is installed inside the perforation of the inner pipe, and one end of ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E06C7/50E06C7/18
CPCE06C7/50E06C7/18
Inventor 李杰刘德春周太波王胜江李振海
Owner TIANJIN GOLD ANCHOR HOUSEHOLD GOODS CO LTD
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