Equipment for detecting air tightness and corrugated size of corrugated pipe

Abstract

The invention relates to the technical field of corrugated pipe air tightness detection, and discloses equipment for detecting the air tightness and corrugated size of acorrugated pipe. The equipmentcomprises a pipe body, a detection plate is movably connected to the surface of the pipe body, a guide groove is formed in the detection plate, a push rod is movably connected to the surface of the guide groove, a telescopic rod is movably connected to the surface of the push rod, a compression spring is movably connected to the internal of the telescopic rod, a sliding plate is movably connectedto the end, away from the push rod, of the telescopic rod, a water outlet pipe is movably connected to the side, away from the telescopic rod, of the sliding plate, a pressurizing pipe is movably connected to the surface of the water outlet pipe, and a guide ring is movably connected to the end, away from the sliding plate, of the water outlet pipe. In other words, when the size of the pipe body is small, the flowing-out water flow is large, but the pressure is small, the size of the pipe body is large, the flowing-out water flow is small, but the pressure is large, the size of the pipe body can be covered with the water flow no matter how the size of the pipe body is, and detection is conducted, so the effect of adjusting the water flow detection pressure according to the size of the corrugated pipe is achieved.

Description

technical field [0001] The invention relates to the technical field of bellows airtightness detection, in particular to a device for detecting the airtightness and corrugation size of a bellows. Background technique [0002] Bellows refers to tubular elastic sensitive elements connected by foldable corrugated sheets along the folding and stretching direction; bellows are widely used in instruments and meters, as long as the bellows include metal bellows, corrugated expansion joints, corrugated heat exchange tubes, diaphragm membranes Boxes and metal hoses, etc., where the metal hoses need to be tested for airtightness after they are manufactured. [0003] In the prior art, gas is often used to detect the tightness of metal hoses. However, with the development of science and technology, the disadvantages of this detection method are gradually exposed. The size of the corrugated pipe produced in the factory is changeable, and the existing testing equipment does not have a cor...

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Problems solved by technology

[0003] In the prior art, gas is often used to detect the tightness of metal hoses. However, with the development of science and technology, the disadvantages of this detection method are gradually exposed. The size of the corrugated pipe produced in the factory is changeable, and the existing testing equipment does not have a corresponding mechanism to adjust the detection force according to the size of the corrugated pipe, so it is cumbersome to manually adjust the size of the corrugated pipe every time it is changed. Therefore, a device for testing the airtightness of the bellows and the size of the bellows came into being

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