Method for detecting shake allowance of sofa and survey meter used by same

Abstract

The invention provides a measuring instrument adopted in a method for detecting the shake allowance of a sofa, which is characterized by comprising a base, a transverse square pipe, a transverse circular pipe, a vertical pipe, a movable ruler, an angle sensor and a display. The vertical pipe is vertically fixed on the base and the upper part of the vertical pipe is provided with a display. The upper part of the display is vertically provided with the transverse square pipe. The transverse circular pipe is sleeved inside the transverse square pipe and can be moved within the transverse square pipe. The movable ruler fixed in the middle axis of the angle sensor is arranged on the transverse pipe and is connected with the display. The vertical pipe is provided with a fixed disk. The movable ruler and the base are respectively provided with a level bubble. The invention has the advantages that: 1, the detecting method can detect the back shake allowance and the back residual shake allowance of the sofa conveniently and quickly, thereby not only improving the working efficiency, but also improving the detecting precision, and reducing the error rate in surveying and measuring processes; and 2, the measuring instrument adopted in the method has simple structure, convenient and quick operation and high stability, and can survey the sofa at various angles.

Description

Technical field: [0001] The invention belongs to a detection method, in particular to a detection method of sofa looseness and a measuring instrument used in the method. Background technique: [0002] Sofa is people's daily household products, and its quality is a problem that people generally care about. At present, inspection agencies usually test the looseness of the sofa back and the remaining looseness of the back according to the industry standard QB / T1952.1-2003 "Upholstered Furniture Sofa". However, the detection process is very troublesome. It is necessary to measure 3 sets of data and calculate the displacement d of the sofa back. 2 _d 1 and d 3 _d 1 , and then use the formula X=arcsin(d 2 _d 1 ) / H 3 , Y=arcsin(d 3 _d 1 ) / H 3 Calculate separately, and look up the function table according to the result value to obtain the amount of back looseness X and the remaining amount of back looseness Y. This detection method is time-consuming and labor-intensive, a...

AI Technical Summary

Problems solved by technology

However, the detection process is very troublesome. It is necessary to measure 3 sets of data and calculate the displacement d of the sofa back. 2 _d 1 and d 3 _d 1 , and then use the formula X=arcsin(d 2 _d 1 ) / H 3 , Y=arcsin(d 3 _d 1 ) / H 3 Calculate separately, and look up the function table according to the result value to obtain the amount of back looseness X and the remaining amount of back looseness Y

This detection method is time-consuming and labor-intensive, and is prone to measurement and calculation errors.

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