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

Abstract

The invention provides a method for detecting shake allowance of a sofa. The method is carried out according to the following steps: (1) flatly placing an instrument on a proper position of the back of the sofa in an original free state, and resetting read number of an angle; (2) after an endurance test, flatly placing the instrument on the proper position of the back of the sofa under a sustained load condition, and reading the number of the angle which is back shake allowance X; and (3) under an unload condition, re-detecting the number of the angle which is back residual shake allowance Y. A survey meter used by the detecting method consists of a base, a transverse square tube, a transverse round tube, a vertical steel block, a vertical round tube, a moving scale, an angle sensor and a display. The method and the survey meter have 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 survey meter used by 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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