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 o

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
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Example Embodiment

[0013] The mechanical anti-fall locking safety device of this embodiment, such as figure 1 , figure 2 As shown, it includes a safety wire rope 9 on one side of the hoisting wire rope. The safety wire rope 9 passes through the locking rope groove assembly 14 on the main frame 15; the hoisting wire rope passes through the tie rod 2 and the middle part under the beam plate 1 connected to it. 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 end of the hook-shaped limit plate 10 hinged on the main frame 15 at the turning point; the lower part of the tie rod 2 The sleeve is equipped with a tie rod spring 3, the two ends of the tie rod spring 3 are respectively against the main frame 15 and the fork plate 4, the locking rope groove assembly 14 contains two locking plates 16, 16' for clamping the safety wire rope; The upper ends of the plates 16, 16' are respectively hinged with the lower end of the liftin...

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PUM

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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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