Detection mechanism for shield concrete duct piece

Abstract

The utility model discloses a detection mechanism for a shield concrete segment, which relates to the technical field of shield concrete segments and comprises a support attached to the outer surface of a segment to be detected, a circular ring capable of sliding is mounted on the support, an inspection structure and a marking structure are mounted on the circular ring, and the inspection structure is a magnifier fixed on the inner ring surface of the circular ring. The marking structure is a marking pen inserting groove formed in the top of the circular ring, and the marking pen inserting groove vertically penetrates through the circular ring. The magnifying lens can be used for magnifying and detecting defects, such as cracks and burrs, on a segment to be detected, and when the defects are observed, line drawing and marking can be carried out on the periphery of the defect without moving the magnifying lens, so that the magnifying lens is more convenient and more accurate in marking.

Description

Technical Field

[0001] The utility model relates to the technical field of shield concrete segments, in particular to a detection mechanism for shield concrete segments. Background Technique

[0002] Shield concrete segments are indispensable assembled components in tunnels, and their quality is directly related to the overall quality of the tunnels. Therefore, a series of detections are required, such as appearance, anti-leakage property, anti-bending property, etc.

[0003] Among them, during the appearance detection, it is mainly to detect whether there are defects on the appearance, such as cracks, burrs, etc. The specific operation is as follows. One hand of the staff holds a magnifying glass, and the other hand holds a marker pen. Observe the segment through the magnifying glass. When a defect is found, mark it with the marker pen. However, when marking with the marker pen, the magnifying glass has to be taken away from the defect to ensure the marking of the marker pen. This may lead to inaccurate marking and deviation of the marker pen. Therefore, improvement is needed. Content of the Utility Model

[0004] Aiming at the deficiencies of the prior art, the utility model provides a detection mechanism for shield concrete segments, which solves the problems mentioned in the background technique.

[0005] To achieve the above purposes, the utility model is realized through the following technical solutions:

[0006] A detection mechanism for shield concrete segments includes a bracket attached to the outer surface of the segment to be detected. A slidable ring is installed on the bracket, and an inspection structure and a marking structure are installed on the ring. The inspection structure is a magnifying glass fixed on the inner ring surface of the ring, and the marking structure is a marking pen slot opened at the top of the ring, and the marking pen slot penetrates the ring up and down.

[0007] Specifically in the utility model, the bracket is an arc-shaped plate attached to the segment to be detected. A dovetail groove is opened on the outer ring surface of the arc-shaped plate, and a slider is slidably installed in the dovetail groove. The upper end of the slider extends out of the dovetail groove and is fixed to the ring through a connection hole.

[0008] In order to prevent the slider from detaching from the two ends of the dovetail groove of the bracket, the two ends of the dovetail groove are arranged in a closed manner.

[0009] Compared with the prior art, the utility model has the following beneficial effects: The magnifying glass can magnify and detect the defects on the segment to be detected, such as cracks, burrs, etc. When a defect is observed, the defect can be marked by drawing a line around it without moving the magnifying glass, which is more convenient and the marking is more accurate. Description of the Drawings

[0010] Figure 1 For the three-dimensional of the utility modelFigure 1 ;

[0011] Figure 2 is the three - dimensional view of the present utility model Figure 2 ;

[0012] Figure 3 is the three - dimensional view of the inspection structure and marking structure of the present utility model;

[0013] Figure 4 is the cross - sectional view of the side view of the circular ring of the present utility model;

[0014] Figure 5 is the cross - sectional view of the front view of the present utility model.

[0015] Reference numerals: 1, bracket; 1 - 1, dovetail groove; 2, circular ring; 2 - 1, magnifying glass; 2 - 2, marker pen slot; 3, slider; M, segment to be detected; N, marker pen. Detailed implementation manners

[0016] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model.

[0017] As Figures 1-3 shown, the present utility model provides a detection mechanism for shield concrete segments, including a bracket 1 attached to the outer surface of the segment M to be detected. A slidable circular ring 2 is installed on the bracket 1. An inspection structure and a marking structure are installed on the circular ring 2. The inspection structure is a magnifying glass 2 - 1 fixed on the inner ring surface of the circular ring 2, and the marking structure is a marker pen slot 2 - 2 opened at the top of the circular ring 2. The marker pen slot 2 - 2 runs through the circular ring 2 vertically.

[0018] As Figure 4 shown, specifically in the present utility model, the bracket 1 is an arc - shaped plate attached to the segment to be detected. A dovetail groove 1 - 1 is opened on the outer ring surface of the arc - shaped plate. A slider 3 is slidably installed in the dovetail groove 1 - 1. To prevent the slider 3 from detaching from both ends of the dovetail groove 1 - 1 of the bracket 1, both ends of the dovetail groove 1 - 1 are closed. The upper end of the slider 3 extends out of the dovetail groove 1 - 1 and is fixed to the circular ring 2 through a connection hole.

[0019] As Figure 5As shown, when in use, the bracket 1 is attached to the outer surface of the segment M to be detected. Then, with one hand, the slider 3 is pushed to slide along the dovetail groove 1-1, driving the inspection structure and the marking structure to move. Here, if it is desired to keep the slider 3 stable on the bracket 1, the bracket 1 can be made of iron and the slider 3 can be a magnet block. In this way, through the suction force between the slider 3 and the bracket 1, after the slider 3 moves, it can be stabilized on the bracket 1. During the movement of the slider 3, the condition of the segment M to be detected is inspected through the magnifying glass 2-1 to check for any defects. If there are defects, with the other hand, the marker pen N can be inserted into the marker pen slot 2-2 and moved along the marker pen slot 2-2 to draw a line so that the defective area is within the line. Then, the bracket 1 can also be moved radially along the segment M to be detected, and the above operations can be repeated until all positions on the surface of the segment M to be detected have been inspected. The advantage of the bracket 1 is that it can be moved little by little along the surface of the segment M to be detected, realizing little-by-little inspection and marking. Compared with the method of an operator holding the magnifying glass 2-1 and the marker pen N in both hands, it is more orderly, preventing chaos and missing areas to be inspected.

[0020] Finally, the most important contribution of the present utility model is that the magnifying glass 2-1 can magnify and detect defects on the segment M to be detected, such as cracks, burrs, etc. When a defect is observed, it is possible to draw a line mark around the defective area without moving the magnifying glass 2-1, which is more convenient and the marking is more accurate.

[0021] Although the embodiments of the present utility model have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A detection mechanism for shield concrete segments, characterized in that: It includes a bracket attached to the outer surface of the segment to be detected. A slidable ring is installed on the bracket, and an inspection structure and a marking structure are installed on the ring. The inspection structure is a magnifying glass fixed on the inner ring surface of the ring. The marking structure is a marking pen slot opened at the top of the ring, and the marking pen slot penetrates through the ring vertically.

2. The inspection mechanism for a shield concrete segment according to claim 1, characterized in that: The bracket is an arc-shaped plate attached to the segment to be detected. A dovetail groove is opened on the outer ring surface of the arc-shaped plate, and a slider is slidably installed in the dovetail groove. The upper end of the slider extends out of the dovetail groove and is fixed to the ring through a connection hole.

3. The inspection mechanism for a shield concrete segment according to claim 2, characterized in that: Both ends of the dovetail groove are arranged in a closed manner.

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