An on-site surveying and mapping device for construction engineering cost

Abstract

The invention belongs to the field of instruments of surveying and mapping of buildings and specifically discloses an on-site surveying and mapping device for construction cost engineering. The devicecomprises a surveying and mapping instrument body, a pedestal, as well as supporting legs mounted on the pedestal. The device also comprises an annular base. Collet chucks for inserting the supporting legs are arranged on the annular base, the collet chucks are of cylindrical tubular structures formed by alternately splicing a plurality of rigid arc plates and a plurality of hollow elastic arc plates, a first through hole and a second through hole are formed in the annular base, a bidirectional exhaust fan is arranged on the annular base, the air inlet of the bidirectional exhaust fan is communicated with the hollow elastic arc plates in each collet chuck and the air outlet of the bidirectional exhaust fan is communicated with a first pipeline and a second pipeline, the first pipeline isalso communicated with a pressure relieving air bag, the first pipeline is communicated with each first through hole, the second pipeline is communicated with each second communicating hole, the firstthrough hole is slidably connected to a supporting leg, and the second through hole is slidably connected to a sucking disc. The on-site surveying and mapping device is suitable for soft grounds, coarse and hard grounds and smooth and hard grounds.

Description

technical field [0001] The invention relates to the field of architectural surveying and mapping instruments, in particular to an on-site surveying and mapping device for construction engineering cost. Background technique [0002] Existing surveying and mapping instruments, such as theodolite and level etc., usually consist of a surveying instrument body, a base and a leg (tripod) installed on the base. When the measuring point is on the soft ground, you can first insert the tripod into the ground to fix the tripod and the ground. When the measuring point is on the rough and hard ground, rely on the friction between the bottom tip of the tripod and the ground to realize the connection between the tripod and the ground. fixed. But when the measuring point is on a smooth and hard ground (such as tiled ground), this fixing method is extremely unreliable, and it is extremely unreliable to only rely on the friction between the bottom tip of the tripod and the ground to achieve ...

AI Technical Summary

Problems solved by technology

But when the measuring point is on a smooth and hard ground (such as tiled ground), this fixing method is extremely unreliable, and it is extremely unreliable to only rely on the friction between the bottom tip of the tripod and the ground to achieve the fixation between the tripod and the ground , the bottom tip of the tripod is particularly easy to shift on the tiled floor, and the bottom tip of the tripod will cause irreparable damage to the tiled floor, so this kind of tripod fixing method basically cannot be used on the tiled floor, making existing surveying and mapping instruments applicable relatively limited range

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