Petrochemical flexible anti-falling bolt

Abstract

The invention discloses a petrochemical flexible anti-falling bolt. The petrochemical flexible anti-falling bolt comprises a hexagonal screw head, a first screw, a rubber spacer, a second screw, a nutspacer, a nut, a supporting rotary bolt, a fixed object and a reinforcing spacer, wherein a first screw arc is arranged at the top end of the first screw; the side face of the first screw arc is concave toward the direction of the axle wire; the rubber spacer is arranged on the outer side of the first screw arc; the top end and the bottom end of the first screw are separately connected to the hexagonal screw head and the second screw; a thread is arranged on the outer side of the second screw; a second screw arc is arranged at the top end of the second screw; the side face of the second screwarc is concave toward the direction of the axle wire; and the reinforcing spacer is arranged on the outer side of the second screw arc. The petrochemical flexible anti-falling bolt is good in integral reusability, simple in structure, great in strength and excellent in anti-loosening effect.

Description

【Technical field】 [0001] The invention relates to the technical field of bolts, in particular to the technical field of a flexible anti-off bolt for petrochemical use. 【Background technique】 [0002] In the petroleum field, bolts are often used to connect oil pipelines. During the transportation of oil pipelines, oil is often poured on the surface of the pipeline, so that the connecting bolts are immersed in oil. Commonly used bolts include screws and nuts. The surface of the screw is equipped with External thread, the inner wall of the nut is provided with internal thread, the external thread of the screw is compatible with the internal thread of the nut, the oil on the surface of the bolt, after passing through the external thread and internal thread, will make the connection between the screw and the nut become Unreliable, when the pipeline is subject to vibration, the nut is easy to slip from the screw, and in severe cases, it will fall off from the screw. The working en...

AI Technical Summary

Problems solved by technology

[0002] In the petroleum field, bolts are often used to connect oil pipelines. During the transportation of oil pipelines, oil is often poured on the surface of the pipeline, so that the connecting bolts are immersed in oil. Commonly used bolts include screws and nuts. The surface of the screw is equipped with External thread, the inner wall of the nut is provided with internal thread, the external thread of the screw is compatible with the internal thread of the nut, the oil on the surface of the bolt, after passing through the external thread and internal thread, will make the connection between the screw and the nut become Unreliable, when the pipeline is subject to vibration, the nut is easy to slip from the screw, and in severe cases, it will fall off from the screw. The working environment of the bolts used in oil drilling and related auxiliary equipment is poor. If the bolts of some key parts If there is looseness, it will affect the normal operation of the equipment and may even cause a safety accident

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