Shield segment attitude retesting device

Abstract

The utility model discloses a shield segment posture remeasuring device which comprises a horizontal ruler, and the two ends of the horizontal ruler are connected with telescopic rulers used for increasing the length. A long level tube is arranged at the midpoint of the upper end surface of the leveling instrument; a prism with the same section as the long level tube is arranged on the side surface of the leveling instrument; a mounting frame connected with the horizontal ruler is arranged above the long level tube; a micro camera for shooting the long level tube is arranged on the mounting frame; the output end of the micro camera is connected with a PLC, the output end of the PLC is connected with an indicating lamp arranged below the prism, and the PLC is connected with a battery. The leveling instrument can prompt a worker whether the leveling instrument is in a horizontal state or not, and has the advantages of simple structure, more accurate measurement result, capability of avoiding measurement errors and capability of improving measurement efficiency.

Description

Technical Field

[0001] The utility model relates to the technical field of tunnel surveying and mapping, and more specifically to a shield segment posture re-measurement device. Background Art

[0002] During the tunneling process of subway shield, in order to ensure the correct position of the segments, the segment posture needs to be monitored in real time. Since the segments to be assembled are all qualified segments, it is usually assumed that the assembled segments are a true circle, and the center coordinates and elevation of the segments are measured by the total station as the basis for segment position control. Place the level ruler on the invert of the segment, with the level bubble in the center. By measuring the three-dimensional coordinates of the midpoint position of the level ruler, the deviation between the design posture and the actual posture can be determined.

[0003] However, in actual use, it is easy to have large errors in judging whether the level bubble is centered. In addition, if the level ruler moves during the detection process, the staff cannot discover it in time, which can easily lead to errors in the measurement results of the total station. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide a shield segment posture re-measurement device to solve the problems in the background technology.

[0005] In order to solve the above technical problems, the technical solutions adopted by the present utility model are as follows.

[0006] A shield segment posture re-measurement device comprises a spirit level, both ends of which are connected with a telescopic ruler for increasing the length; a long level is arranged at the midpoint of the upper end face of the spirit level, and a prism with the same cross-section as the long level is arranged on the side of the spirit level; a mounting frame connected to the spirit level is arranged above the long level, and a miniature camera for photographing the long level is arranged on the mounting frame; the output end of the miniature camera is connected to a PLC controller, the output end of the PLC controller is connected to an indicator light arranged below the prism, and the PLC controller is connected to a battery.

[0007] To further optimize the technical solution, the horizontal ruler and the telescopic ruler are hinged by hinges to achieve folding.

[0008] To further optimize the technical solution, the telescopic ruler is provided with a scale for indicating the extension length.

[0009] To further optimize the technical solution, the telescopic ruler is provided with a positioning bolt for fixing the length of the telescopic ruler.

[0010] Due to the adoption of the above technical scheme, the technical progress achieved by the utility model is as follows.

[0011] A shield segment attitude remeasurement device provided by the utility model has a variable ruler length, eliminating the need to prepare multiple rulers and avoiding the inconvenience caused by ruler replacement in a narrow space. It can accurately determine whether the bubble in the spirit level on the spirit level is centered through a controller and display the result through an indicator light. The utility model can prompt the staff whether the spirit level is in a horizontal state, featuring a simple structure, more accurate measurement results, capable of avoiding measurement errors, and improving measurement efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 is a schematic structural diagram of the present utility model;

[0013] Wherein: 1, spirit level; 2, telescopic ruler; 3, positioning bolt; 4, long spirit level tube; 5, prism; 6, indicator light; 7, mounting bracket; 8, micro camera; 9, scale; 10, hinge. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0014] The present utility model will be further described in detail below in conjunction with the drawings and specific embodiments.

[0015] The shield segment attitude remeasurement device, as shown in combination with Figure 1 includes a spirit level 1, a telescopic ruler 2, a positioning bolt 3, a long spirit level tube 4, a prism 5, an indicator light 6, a mounting bracket 7, a micro camera 8, a scale 9, and a hinge 10.

[0016] Both ends of the spirit level 1 are connected with a telescopic ruler 2 for increasing the length of the spirit level 1 to achieve detection of different lengths. The spirit level 1 and the telescopic ruler 2 are hinged through a hinge 10 to achieve folding for convenient storage.

[0017] The telescopic ruler 2 is provided with a scale 9 for indicating the extended length of the telescopic ruler 2, facilitating adjustment and calculation. The telescopic ruler 2 is provided with a positioning bolt 3 for fixing the length of the telescopic ruler 2, increasing the accuracy of the detection process.

[0018] The midpoint of the upper end surface of the spirit level 1 is provided with a long spirit level tube 4, and a prism 5 is arranged on the side surface of the spirit level 1. The prism 5 and the long spirit level tube 4 are located in the same cross-section. Above the long spirit level tube 4, there is a mounting bracket 7 connected to the spirit level 1, and a micro camera 8 is arranged on the mounting bracket 7 for photographing the position state of the bubble in the long spirit level tube 4.

[0019] The output end of the micro camera 8 is connected to a PLC controller. The output end of the PLC controller is connected to the indicator light 6 arranged below the prism 5, and the PLC controller is connected to a battery. The PLC controller analyzes the photographed pictures of the micro camera 8. When the position of the bubble in the spirit level tube meets the standard, the PLC controller sends a signal to the indicator light 6, and the lit indicator light 6 represents the photographing state.

[0020] When the utility model is actually used, the folding part between the telescopic ruler 2 and the spirit level 1 is opened. First, the telescopic ruler 2 is roughly extended according to the length of the measurement point, and then the device is made roughly horizontal. Then, the length of the telescopic ruler 2 is finely adjusted. When the bubble in the spirit level is centered, the micro camera 8 sends a signal to the PLC controller, and the PLC controller controls the indicator light 6 to emit light. The staff can then understand that the device is in a horizontal state and it is appropriate to measure the coordinates. When the device is tilted or slips, the micro camera 8 sends a signal to the PLC controller, and the PLC controller controls the indicator light 6 to go out, which can timely remind the staff to stop the measurement.

Claims

1. Shield segment attitude remeasurement device, characterized in that: It includes a spirit level (1), and telescopic rulers (2) for increasing the length are connected to both ends of the spirit level (1); a long bubble tube (4) is arranged at the midpoint of the upper end surface of the spirit level (1), and a prism (5) with the same cross-section as the long bubble tube (4) is arranged on the side surface of the spirit level (1); an installation bracket (7) connected to the spirit level (1) is arranged above the long bubble tube (4), and a micro camera (8) for photographing the long bubble tube (4) is arranged on the installation bracket (7); the output end of the micro camera (8) is connected to a PLC controller, the output end of the PLC controller is connected to an indicator light (6) arranged below the prism (5), and the PLC controller is connected to a battery.

2. The shield segment attitude remeasurement device according to claim 1, wherein: The spirit level (1) and the telescopic ruler (2) are hinged through a hinge (10) to achieve folding.

3. The shield segment attitude remeasurement device according to claim 1, wherein: Scales (9) for indicating the extended length are arranged on the telescopic ruler (2).

4. The shield segment attitude remeasurement device according to claim 1, wherein: Positioning bolts (3) for fixing the length of the telescopic ruler (2) are arranged on the telescopic ruler (2).

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