Portable positioning device for underground excavation tunnel grating steel frame

A technology of grid steel frame and positioning device, which is applied in the direction of using optical devices, tunnels, tunnel linings, etc., can solve the problems of inconvenient carrying and use, time-consuming and labor-intensive positioning, etc., so as to shorten the adjustment time, reduce weight, and facilitate portability. Effect

Pending Publication Date: 2022-03-25
中水电四局华中(武汉)工程有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The main purpose of the present invention is to propose a portable positioning device for grid steel frame of underground excavation tunnel, which aims to solve the problem that the existing positioning device for grid steel frame of underground excavation tunnel is inconvenient to carry and use, and the positioning process is time-consuming and laborious. question

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  • Portable positioning device for underground excavation tunnel grating steel frame
  • Portable positioning device for underground excavation tunnel grating steel frame
  • Portable positioning device for underground excavation tunnel grating steel frame

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Embodiment Construction

[0037] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0038] It should be noted that if there is a directional indication (such as up, down, left, right, front, back...) in the embodiment of the present invention, the directional indication is only used to explain the position in a certain posture (as shown in the accompanying drawing). If the specific posture changes, the directional indication will also change accordingly.

[0039] In the present invention, unless otherwise specified and limited, the t...

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Abstract

The invention discloses a portable positioning device for underground excavation tunnel grating steel frames, which comprises a transmitting device, a receiving device, a positioning device and a positioning device, and is characterized in that the transmitting device is mounted on one grating steel frame and is used for transmitting a laser beam to the other grating steel frame; and the receiving device is arranged on the other grating steel frame and is used for receiving the laser beam emitted by the emitting device and calculating the incident angle of the laser beam. According to the technical scheme, a telescopic rod is replaced with the laser beam, the weight is greatly reduced, carrying is convenient, whether the grating steel frame is installed in place and the deviation amount of the grating steel frame and the accurate installation position are judged by measuring the incident angle of the laser beam, the grating steel frame can be conveniently adjusted in place at a time, adjustment time is remarkably shortened, time and labor are saved, and the working efficiency is improved. The use is convenient.

Description

technical field [0001] The invention relates to the field of tunnel construction, in particular to a portable positioning device for grid steel frames of underground tunnels. Background technique [0002] At present, hanging wires are generally used to position and level the grid steel frame when installing the grid steel frame in the construction of underground excavation tunnels. Its structure is shown in the patent whose publication number is CN210599018U. [0003] The disadvantage of this positioning device is that the hanging wire can only judge whether the grille steel frame has been installed in place. As for how much the grille steel frame deviates from the exact position, it is not known. Workers need to move the grille steel frame while observing the position of the hanging wire. , until the lower end of the suspension wire is aligned with the calibration point, it means that the grid steel frame is installed in place. The whole adjustment process is time-consuming...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01B11/00G01V8/12E21D11/18
CPCG01B11/00G01V8/12E21D11/18
Inventor 刘宏鹏陈烜孙海峰王丽华金承黄明帅
Owner 中水电四局华中(武汉)工程有限公司
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