Suspension type deep-foundation-pit up and down stairs

Abstract

The invention relates to suspension type deep-foundation-pit up and down stairs. The suspension type deep-foundation-pit up and down stairs comprise a plurality of first walkways, a plurality of second walkways, telescopic supporting parts and a plurality suspension parts; and the telescopic supporting parts comprise a plurality telescopic rods, the first walkways are correspondingly installed between every two telescopic rods which are arranged on the same sides but provided with different axes, the second walkways are correspondingly installed between every two telescopic rods which are arranged on different sides, and the first walkways and the second walkways are rotatably connected in a mutual unparallel mode. When pushing force or pulling force is applied to the telescopic rods, thefirst walkways can change a first gradient angle of the first walkways by a method of rotating around the second walkways; and / or the second walkways can change a second gradient angle of the second walkways by a method of rotating around the first walkways; so that the up and down stairs are enabled to be installed on an inner space of a deep foundation pit according to the changes of the first gradient angle and the second gradient angle by a folding or spreading mode, and the up and down stairs enables working personnel to go down into the deep foundation pit gradually or return to the ground gradually.

Description

technical field [0001] The invention belongs to the technical field of construction engineering and relates to a construction up and down stairs, in particular to a hanging type deep foundation pit up and down stairs. Background technique [0002] With the continuous advancement of green construction, safe and civilized construction, the implementation of the national development strategy on strengthening energy conservation and emission reduction, and the construction of a resource-saving and environment-friendly society, green and environmentally friendly construction of construction projects is gradually being promoted. A foundation pit is an earth pit excavated at the foundation design position according to the base elevation and foundation plane size. Building foundation pit refers to the space below the ground excavated for the construction of building (including structure) foundation and basement. The foundation pit is a temporary project, and its function is to prov...

AI Technical Summary

Problems solved by technology

It mainly has the following defects: the disassembly process is cumbersome, labor-intensive and time-consuming; there is no safety protection device; the reuse rate is low, material waste, etc.

[0014] Through the investigation of the prior art, it is found that the stairs as the upper and lower deep foundation pits are installed layer by layer according to the depth of the deep foundation pit and cannot be retracted, so there are the following deficiencies: the construction depth of the deep foundation pit is constantly changing, When the depth of the deep foundation pit cannot satisfy the installation of one of the stairs, it needs to be compensated by the external horseway

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