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Mechanical anti-falling locking safety device

A safety device and anti-falling technology, which is applied in elevators, transportation and packaging, etc., can solve the problems of manual locking and manual unlocking, and achieve the effects of eliminating accidental falling accidents, sensitive action, and low failure rate

Active Publication Date: 2010-11-24
CHINA NUCLEAR IND HUAXING CONSTR
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, it uses a sensor to control the movement of the pull rod to achieve locking. There is a hidden danger of accidents caused by sensor failure, and it does not have the functions of manual locking and manual unlocking.

Method used

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  • Mechanical anti-falling locking safety device
  • Mechanical anti-falling locking safety device
  • Mechanical anti-falling locking safety device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0013] In this embodiment, the mechanical anti-drop locking safety device, such as figure 1 , figure 2 As shown, it includes a safety wire rope 9 located on one side of the hoisting wire rope, and the safety wire rope 9 passes through the locking rope groove assembly 14 located on the main frame 15; One end of the fork plate 4 hinged on the main frame 15 is hinged, and the other end of the fork plate 4 is adjacent to the hook head end of the hook-shaped limit plate 10 hinged on the main frame 15 at the turning point; the lower part of the pull rod 2 The suit is equipped with a pull rod spring 3, and the two ends of the pull rod spring 3 withstand the main body frame 15 and the shift fork plate 4 respectively, and the locking rope groove assembly 14 contains two locking plates 16, 16' that are matched to clamp the safety wire rope; The upper ends of the plates 16, 16' are respectively hinged to the lower end of the lifting rod 17 through short connecting rods, and the outer s...

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Abstract

The invention discloses a mechanical anti-falling locking safety device, which comprises a main body frame, a manual locking mechanism and a manual unlocking device, wherein a locking part, a rotary hook-shaped stop plate and a locking driving mechanism which is connected with a lifting steel rope and capable of making the hook-shaped stop plate rotate are arranged on the main body frame; and after rotating, the hook-shaped stop plate can make the locking part lock a safety steel rope to prevent falling. In the device, upon the breakage of the lifting steel rope, a locking action is completed almost at the same time, and the falling distance of the whole platform is no greater than 10 centimeters. Based on a mechanical principle, the device, which is independent of a power supply and an electrical control system, can still realize falling prevention and manual locking and unlocking functions under a power supply-free condition, thereby meeting the requirements of reliable principle and low fault rate; and the locking function can be realized by simply pulling up the manual locking mechanism, the unlocking function can be realized by simply pulling up the manual unlocking mechanism, other actions are all completed by the anti-falling locking device, and the requirement on easy operation is met.

Description

technical field [0001] The invention relates to a mechanical anti-drop locking safety device that can be used for a lifting platform system, is especially suitable for the construction application of the containment shell of a nuclear power plant, and belongs to the technical field of nuclear power plant facility construction. Background technique [0002] In the construction of large-scale structures (such as nuclear power plant containment, liquefied natural gas storage tanks, etc.), it is necessary to use a liftable platform system that carries construction personnel and equipment. When the lifting wire rope is broken, the platform system must be able to immediately lock the safety wire rope (the safety wire rope is set separately and fixed on the upper part of the structure), that is, it has the function of preventing falling; the platform system can stop at any construction position, when the platform stops When the platform system is lifted, the safety wire rope can be...

Claims

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Application Information

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IPC IPC(8): B66B5/24
Inventor 郝发领杜春生万吉祥刘强
Owner CHINA NUCLEAR IND HUAXING CONSTR
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