Portable trace angle and length collecting device

Abstract

The invention relates to the technical field of trace identification, and discloses a portable trace angle and length collecting device. A vertical base (2) is vertically fixed to one end of a horizontal base (1); a bubble level aligner (4) is fixed on the horizontal base (1); an angle steering wheel (6) is fixed between the angle between the horizontal base (1) and the vertical base (2); a laseremitter (3) is rotatably connected at the intersection joint of the horizontal base (1) and the vertical base (2), and the laser emitter (3) is in the same plane as the angle steering wheel (6); a target ruler (5) is arranged directly facing the laser emission direction of the laser emitter (3); and the angle steering wheel (6) is located between the laser emitter (3) and the target ruler (5). Compared with the prior art, the invention can accurately collect the angle information of the trace directly on the spot, and complete the angle measurement between the trace and the horizontal or vertical plane which could not be completed on the spot.

Description

technical field [0001] The invention relates to the technical field of trace identification, in particular to a portable trace angle and length acquisition device. Background technique [0002] The inspection and identification of the main traces and physical evidence related to the accident provides evidence for the determination of accident responsibility. For the traces and physical evidence extracted, by observing the freshness of the traces, recording the shape, size, height and direction of the traces, looking for the corresponding relationship between the traces, analyzing the formation process of the traces, and judging the relationship between the traces and the accident (whether it was caused by the accident or not) produced), and come to the same identification or inspection opinion or negative conclusion. In the inspection of traces of traffic accidents, most of them belong to types, such as the inspection of paint, rubber and other attachments, collision marks ...

AI Technical Summary

Problems solved by technology

[0005] 1. In the process of moving the accident vehicle to the appraisal office, its state at the accident scene will inevitably be changed, such as the direction of traces and other information, which will cause certain obstacles to the subsequent appraisal results

[0006] 2. In the process of moving the accident vehicle to the appraisal office, some collisions may occur, changing the length, size and other key information of the trace, such as Figure 1 The tire scratches in the test are very likely to become larger and longer due to secondary collisions, resulting in inaccurate identification results

[0007] Visual observations compared with a tape measure are not accurate enough, and it is impossible to judge the actual direction of the trace, such as Figure II The angle at which the horizontal scratch marks are seen on the rear of the electric vehicle body guard panel makes the existing identification methods unable to completely and accurately record the accident scene information

Images