Double clamping groove lining hoop

Abstract

The invention discloses a double clamping groove lining hoop which comprises a hoop strip and a locking component, and is characterized by further comprising a lining adhered to the inner wall of the hoop strip; the lining is a double clamping groove lining comprising a first edge, a second edge and a third edge; the first edge and the third edge are symmetrically arranged; the first edge as well as the third edge comprises a transverse forced part and an inward-tilted supporting part in smooth connection with one end of the transverse forced part; the second edge is an arch part; and the two ends of the second edge are in smooth connection with the bottom of the supporting part of the first edge and the bottom of the supporting part of the third edge respectively in a circular arc-shaped manner to form two convex ridges protruding in the inner diameter direction. As the two convex ridges are arranged on the elastic lining of the hoop, when two pipes are connected through a hose pipe, the two convex ridges form double clamp grooves to reduce the stress area and enlarge pressing force to clamp the hose pipe, so as to ensure firm clamping and eliminate the impacts of poor sealing and leakage caused by high temperature difference variation of a pipeline. The double clamping groove lining hoop has advantages of convenience and fastness in construction and stable system.

Description

technical field [0001] The invention relates to a clip, in particular to a double-slot liner clip. Background technique [0002] The clamp connection technology has become the most popular technology for liquid and gas pipeline connections because it makes the complex pipeline connection process simple, fast and convenient. Although this technology was developed later in China than abroad, due to its technical It is advanced and quickly accepted by the domestic market, and has gradually replaced the two traditional pipe connection methods of flange and welding. [0003] The existing clamp mainly consists of two parts: a band and a locking bolt. When in use, a rubber sealing ring is placed on the outside of the connected pipe, and then a band is buckled on the outside of the rubber ring, and then fastened with bolts. Due to the unique sealable structural design of the rubber sealing ring and the hoop, the hoop connection has good sealing performance, and as the fluid pressu...

AI Technical Summary

Problems solved by technology

However, because the inner wall of the existing cuffs is a smooth plane, when the connected pipes are affected by temperature and produce thermal expansion and contraction, the cuffs will not expand or contract accordingly, which may cause bursting or sealing of the connected pipes Loose, causing leakage of fluid / gas in the pipe

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