Lifting equipment for road and bridge construction

Abstract

The invention discloses lifting equipment for road and bridge construction. The equipment comprises a base, a hydraulic telescopic frame, a top seat, a protective fence, a turnover door, a door lock, a protective box body, a lower pressing strip, an upper iron plate, a vertical rod, a pressing plate, a first electromagnet block, bottom wheels, an oil tank, an observation window, a sealing cover, a micro oil pump, an oil pipe, an annular soft sleeve, a lifting air cylinder, an oil brush, a pressing ball, a guide through hole, a permanent magnet block, a positioning concave hole, a first spring, a guide round hole, a pressing rod, a second spring, an iron strip, a second electromagnet block, a counterweight embedding block, a hinge and a through groove. The equipment has the advantages that the stability of the bottom of the equipment is high, the equipment can be pressed on the ground through the pressing plate, pressure is provided, friction is provided, limiting is achieved, the pressing pressure is provided through a first electromagnet, the pressure effect is good, meanwhile, a downward pressing mechanism is arranged, besides the magnetic attraction pressure of the first electromagnet, secondary downward pressing pressure can be provided through the downward pressing mechanism, the pressure effect is improved, and therefore the friction limiting effect is good.

Description

technical field [0001] The invention relates to a lifting device, in particular to a lifting device for road and bridge construction, and belongs to the technical field of road and bridge construction. Background technique [0002] The content of road subgrade construction generally includes: subgrade main works, borrow pits and spoil piles, slope protection and broken down platforms, comprehensive drainage of subgrades, subgrade protection and reinforcement, filling and excavation subgrades, subgrades in special engineering geological areas, winter Construction in the rainy season and engineering projects such as ditches or river changes caused by the construction of roadbeds, construction organization of earthworks, roadbed renovations, quality inspections, project acceptance and other engineering projects; among them, it is necessary to use lifting and landing equipment to perform the role of personnel taking off and landing , Carry out construction work at high positions...

AI Technical Summary

Problems solved by technology

[0003] In the existing patent documents "Invention Authorization CN104261306B A Lift", "Invention Authorization CN104261233B An Elevator", although there is a design for take-off and landing to adjust the construction height, the stability between the ground and the ground may be insufficient. During construction, there may be movement, which will affect the effect of construction

There is still no lifting and landing equipment for road and bridge construction with a reasonable and reliable structure and a limit effect.

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