Leak-proof device for a swan neck

Abstract

The utility model discloses crane pipe anti -leakage device, including crane pipe anti -leakage device main part, crane pipe anti -leakage device main part includes fixed elbow, the top of fixed elbow is fixedly installed with swivel joint fixed seat through bolt, the inside of swivel joint fixed seat is provided with the rotary base, through the design stability control mechanism, can be in the inside conveying liquid of conveying pipe is under heavy pressure, and the rotary seat of swivel joint rotates in the inside sealing of swivel joint fixed seat and is driven rotating block in the inside rotation of rotating groove through the upper fixed ring and support rod, make the rotary seat of swivel joint stable support rotation, and conveying pipe is not easy to cause the deflection and cause friction when under the pressure of gravity, more stable rotation adjustment, and the effective anti -leakage protection of not easy to produce the friction damage when stable rotation, improve crane pipe anti -leakage device main part installation on crane pipe use to swivel joint rotary seat support rotation stability and tightness.

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