Sealing tester for empty cavities
The invention discloses a sealing tester for empty cavities. The tester comprises a top plate, a base plate, middle plates, sealing rings, an air inlet pipe, an air outlet pipe and a pressure gauge, the middle plates and base plate are arranged successively from top to bottom below the top plate, th...
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| Format: | Patent |
| Sprache: | chi ; eng |
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| Zusammenfassung: | The invention discloses a sealing tester for empty cavities. The tester comprises a top plate, a base plate, middle plates, sealing rings, an air inlet pipe, an air outlet pipe and a pressure gauge, the middle plates and base plate are arranged successively from top to bottom below the top plate, the top plate, middle plates and base plate are all arranged horizontally, empty cavities to be testedare arranged between the top plate and the adjacent middle plate thereof, the adjacent middle plates and the base plate and the adjacent middle plate thereof respectively, each empty cavity is provided with a through hole penetrating the upper and lower ends of the cavity, the upper and lower ends of each through hole are provided with bulge loops protruded outwardly respectively, and each the lower end of the top plate, the upper end of the base plate and the upper and lower ends of the middle plates is provided with different sizes of annular grooves among which a larger one can encircle asmaller one, and each annu |
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