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Telescopic Ladder Guardrail

A technology of telescopic ladders and guardrails, applied in elevators, transportation and packaging, etc., can solve the problems of complex manufacturing process and structure, difficult installation, inconvenient maintenance, etc., and achieve the effects of enhanced reliability, firm installation and convenient disassembly

Active Publication Date: 2018-03-13
GOLDEN OCEAN PRECISION MFR
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to solve the technical problems of the above-mentioned existing telescopic guardrails such as complex manufacturing process and structure, difficult installation, inconvenient maintenance and high cost, the present invention provides a telescopic ladder guardrail with simple structure, easy installation and disassembly, and good safety performance.

Method used

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Embodiment Construction

[0024] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0025] Please also refer to figure 1 , figure 2 and image 3 ,in, figure 1 It is a schematic structural diagram of a preferred embodiment of the telescopic ladder guardrail provided by the present invention, figure 2 yes figure 1 The structural combination diagram of the safety limit device and the installation riser of the guardrail of the telescopic ladder shown, image 3 yes figure 2 A partial enlargement of the region A shown. The telescopic ladd...

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Abstract

The invention provides a telescopic ladder guardrail. The telescopic ladder guardrail includes a guardrail body and a safety limit device connected with the guardrail body. The guardrail body includes a mounting vertical plate, a fixed vertical plate, a fixed horizontal plate and a mounting bottom plate. The bottom plate is combined into a groove space, the fixed vertical plate and the fixed horizontal plate are arranged in the groove space in a cross, the toe guard is arranged on the upper surface of the installation bottom plate, and the safety limit device It includes a counterweight, a spring, a connecting piece, a partition and a double contact switch, the counterweight is stacked on the upper surface of one end of the connecting piece, and the spring clip is arranged between the connecting piece and the partition Between, the other end of the connector is disposed on the double contact switch. In the present invention, by setting a double contact switch, the safety limit device can accurately control the opening and closing of the circuit system, so as to ensure the safety of maintenance personnel, and is easy to manufacture and install.

Description

technical field [0001] The invention relates to the technical field of elevator safety, in particular to a telescopic ladder guardrail suitable for elevator installation or maintenance. Background technique [0002] With the rapid development of the construction industry, houses are built higher and higher, and elevators are becoming more and more important in people's daily life. In order to prevent the operator from falling into the well when installing or overhauling the elevator, it is pointed out in the "Safety Code for Elevator Manufacturing and Installation" that when the maintenance trap door is opened, measures to prevent people from falling (such as guardrails) should be taken. When the ground height of the machine room is different and the difference is greater than 0.50m, stairs or steps should be set up and guardrails should be set up. This shows that the guardrail is of great significance for the safety application of the elevator. [0003] The car roof guard...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B66B5/00
Inventor 钟长征江志远
Owner GOLDEN OCEAN PRECISION MFR
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