Electric low pressure test device and method for testing watertightness of waterproof roll

Abstract

The invention relates to an electric low pressure test device and method for testing watertightness of a waterproof roll. The device comprises a base, a water storage cavity, a water supply mechanismand a locating mechanism, wherein an electromagnetic valve is arranged between the inlet of a water inlet pipe and a static water pressure supply pipe, the water supply mechanism comprises the water inlet pipe, the static water pressure supply pipe, a monitoring unit and a processing unit; during water supply, the electromagnetic valve is automatically opened, and the electromagnetic valve is automatically closed and the water supply is stopped until water level in the static water pressure supply pipe rises to a preset position; a washer is arranged on the water storage cavity, a to-be-detected sample is paved on the washer; the locating mechanism comprises a pressure plate, multiple locating units, a locating rod, a limiting rod and a limiting plate; when the to-be-detected sample is located, the limiting rod is horizontally arranged, and the limiting plate is against the bottom of the limiting rod, so that the periphery and the middle part of the pressure plate are in a stress staterespectively. The electric low pressure test device provided by the invention has the advantages that on one hand, the water supply can be automatically completed; and on the other hand, the periphery of the pressure plate is located, the middle part of the pressure plate is limited, and the washer is used for sealing, so that location is realized.

Description

technical field [0001] The invention belongs to the field of testing equipment for waterproof coiled materials, and in particular relates to an electric low-pressure testing device for testing the impermeability of waterproof coiled materials, and also relates to a method for testing the waterproof coiled material's water tightness. Background technique [0002] At present, the impermeability test of waterproof membranes is usually carried out under static water pressure, mainly by manually adding water and visually controlling the height. However, the height required in the test is often more than several meters, which is not only troublesome when injecting water , It is also difficult to be accurate in height control, which is also the reason why this kind of detection device has been difficult to popularize all the time, and the accuracy of detection results is not high at the same time. [0003] At the same time, the impermeability testing instrument, as the name suggest...

AI Technical Summary

Problems solved by technology

Therefore, the stable positioning of the sample to be tested is very important, and the existing positioning is to connect the periphery of the pressure plate with the detection area. Therefore, uneven pressure is prone to occur, resulting in certain deviations in the test results.

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