| 摘要 |
An apparatus for measuring deflection of a structure is provided to easily check and measure the droop and the projected status of the ceiling and the floor by moving the first and second support devices as long as the drooped distance of the ceiling and the floor through elasticity of the elastic body. An apparatus(10) for measuring droop of a structure is composed of a first support device(20) having a fixing plate(21) fixed at the ceiling and an outer pipe(23) downwardly projected at the center of the fixing plate; a second support device(30) containing a fixing plate(31) fixed at the floor, and an inner pipe(33) projected at the fixing plate and formed with first and second inner pipes(35,37); an elastic body(11) placed in the outer pipe to elastically support the first and second support devices to the opposed direction; and a measuring rod(40) containing a first measuring bar(41) fixed at the fixing plate of the first support device, and a second measuring bar(43) elastically installed at the first measuring bar.
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