A kind of frock detecting automobile oil pipe sealingTechnical field
For detecting a frock for automobile oil pipe sealing, specifically under high-pressure situations to the detection of tubing seal.
Background technology
The performance of automobile oil pipe includes a lot, and property indices is all in order to ensure that in use oil pipe can smooth and easy logical oil.Wherein, the sealing of automobile oil pipe is just important especially, when detecting tubing seal performance, is sealed at oil pipe two ends, is inflated in oil pipe by inflation pin, the sealing of test oil pipe.In conventional operation, often cause the gas leakage of sealed port even to be ejected by sealing-plug because aeration quantity is excessive, cause testing.
Innovation and creation content
For traditional test automobile oil pipe sealing, especially during Hi-pot test, sealed end can not be fixed on the problem in oil pipe, and the invention proposes a kind of frock for detecting automobile oil pipe sealing.
This frock includes sleeve, rubber ring, steel ring and inflation pin, its middle sleeve one end is for being provided with circular open, rubber ring is placed in sleeve, rubber ring is provided with through hole, through-hole diameter and sleeve circular open equal diameters, steel ring is located at the sleeve other end, and can rubber ring be fixed in sleeve, steel ring is provided with through hole simultaneously, inflation pin can be passed, the inner circumferential surface of described rubber ring has the lines of ridge shape, can provide larger friction force at work, prevent the disengaging of oil pipe and frock.
Further, be respectively provided with a rubber sheet gasket at the two ends of rubber ring, this rubber sheet gasket can provide the environment of better sealing, and when preventing test, the gas leakage of sealed end, makes test result more accurate.
Further, outside sleeve, be provided with cylinder, cylinder operation drives sleeve extruding rubber ring, makes rubber ring produce the seal of deformation extruding oil pipe, makes sealing effectiveness better.
Further, this frock is provided with work top, more convenient when making test.
Accompanying drawing explanation
Shown in Fig. 1, it is this tool structure schematic diagram.
Shown in Fig. 2, it is rubber ring inside surface ridge shape texture maps.
Embodiment
Shown in Fig. 1, frock includes sleeve 1, rubber ring 2, steel ring 3 and inflation pin 4, its middle sleeve 1 one end is for being provided with circular open, rubber ring 2 is placed in sleeve 1, and rubber ring 2 is provided with through hole, through-hole diameter and sleeve circular open equal diameters, steel ring 3 is located at sleeve 1 other end, and can be fixed in sleeve 1 by rubber ring 2, steel ring 3 is provided with through hole, makes inflation pin 4 pass simultaneously.The overall diameter of inflation pin 4 equals the interior diameter of oil pipe to be tested.
During test, oil pipe passes the through hole of sleeve 1 and rubber ring 2, and the through hole of inflation pin 4 inserts oil pipe, opens cylinder 6, and cylinder 6 is with moving sleeve 1 inwardly to extrude rubber ring 2, and rubber ring 2, owing to being squeezed, producing deformation, mainly there occurs and stretch in the expansion of radial direction.The connection that the oil pipe of such insertion inflation pin and inflation are sold is more firm, and meanwhile, the inner periphery due to rubber ring 2 exists the lines of ridge shape, has certain friction force with oil-pipe external wall.
In order to make better tightness, respectively establishing rubber sheet gasket 5 at the two ends of rubber ring 2, having made the sealing property at two ends better, ensureing the phenomenon not occurring to leak gas in tool structure.
The motion of sleeve 1 is driven by cylinder 6, and cylinder 6 is bled or inflated, the indentation of band moving sleeve 1, thus the compression or the recovery that drive rubber ring 2.
In order to make frock test process more convenient, be equipped with a worktable.