Large-diameter steel tube construction safe suspension device

Abstract

The invention discloses a large-diameter steel tube construction safe suspension device. The large-diameter steel tube construction safe suspension device comprises a rack and a suspension rope system. The rack is mounted at a tube opening of a steel tube. An upper guiding wheel is mounted at the top of the rack. A main pin shaft is mounted on the upper portion of the rack. A main travelling wheel is mounted on the main pin shaft. A front hold-down mechanism and a rear hold-down mechanism capable of achieving locking when the human body falls are mounted on the front side and the rear side of the rack correspondingly. A limiting screw is arranged on the steel tube. A tension spring fixing part is fixed to the outer wall of the steel tube. A tension spring is connected between the tension spring fixing part and the front hold-down mechanism. The suspension rope system comprises a fixed steel wire rope and an adjustable steel wire rope. One end of the fixed steel wire rope passes through the upper guiding wheel and the rear hold-down mechanism in sequentially and then is connected with the adjustable steel wire rope. The other end of the fixed steel wire rope is connected with the front hold-down mechanism. A safety belt is arranged at the lower end of the adjustable steel wire rope. The device can roll on the steel tube, the length of the steel wire ropes can be adjusted, and automatic locking can be achieved during falling, so that the safety of constructors is ensured.

Description

technical field [0001] The invention relates to a construction safety device, in particular to a large-diameter steel pipe construction safety suspension device. Background technique [0002] Existing steel pipes often need to be constructed at different heights during construction, installation of stiffening rings, welding or other constructions. In particular, the construction of penstocks with large diameters (generally more than 6 meters in diameter) generally has a height of more than 3 meters, which belongs to high-altitude operations and has great potential safety hazards. Scaffolding or construction ladders are arranged on the site. Since the safety belts cannot be suspended, construction workers often fall during construction, causing accidents. Even simple scaffolding is used, and because workers need to move around the steel pipe during welding, they cannot be fixed in one position. , often causing damage when walking in the air. Therefore, how to design a safet...

AI Technical Summary

Problems solved by technology

Especially in the construction of large-diameter (generally more than 6 meters in diameter) pressure steel pipes, the height is generally more than 3 meters, which belongs to high-altitude operations, and there are great potential safety hazards

Scaffolding or construction ladders are arranged on the site. Since the safety belts cannot be suspended, construction workers often fall during construction, causing accidents. Even simple scaffolding is used, and because workers need to move around the steel pipe during welding, they cannot be fixed in one position. , tends to cause damage by stepping into the air while walking

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