Half joint used for rush repair of PE water feed pipe

Abstract

The invention provides a half joint used for rush repair of a PE water feed pipe. The half joint comprises an upper half sleeve and a lower half sleeve which are symmetrically arranged. One side of the upper half sleeve is hinged to one side of the lower half sleeve; and other side of the upper half sleeve and the other side of the lower half sleeve are each outwards provided with a locking block, the locking blocks can be used for locking the upper half sleeve and the lower half sleeve through a bolt. The inner cylinder walls of two ends are further each provided with an annular groove, wherein the annular grooves are oppositely formed. The half joint further comprises two disconnected sealing rubber rings. One ends of the two sealing rubber rings are fixed to the end face of the other side of the upper half sleeve and are distributed to the two ends of the upper half sleeve, a through hole is formed in the other end of each of the two sealing rubber rings, and the other ends of the two sealing rubber rings can be arranged on a positioning pillar on the end face of the other side of the lower half sleeve in a penetrating manner through the through holes. The end face of the other side of the upper half sleeve is provided with a bearing and inserting hole where the positioning pillar is borne and inserted. When the half joint is not used, the diameter of a whole sealing rubber ring formed after the two ends of the sealing rings are closed is smaller than the inner diameter of a whole sleeve formed after the upper half sleeve and the lower half sleeve are closed. The half joint has the beneficial effects of being good in sealing effect and convenient to install.

Description

technical field [0001] The invention relates to a special part for repairing water supply pipes, in particular to a half joint used for emergency repair of PE water supply pipes. Background technique [0002] PE (polyethylene) material is widely used in the field of water supply pipe manufacturing because of its high strength, corrosion resistance, and non-toxicity, because it will not rust, and it is an ideal pipe material to replace ordinary iron water supply pipes. However, despite the high strength of PE water supply pipes, problems such as hole opening, rupture, trachoma leakage, and even local holes are formed after being dug out during use. For the Haff Festival, the Haff Festival (pipeline emergency repair device) came into being. Now the PE water supply pipe emergency repair half section usually consists of two opposite semicircular sleeves and the seals arranged in them. The PE water supply pipe section to be repaired is sandwiched by two semicircular sleeves conn...

AI Technical Summary

Problems solved by technology

However, such a setting method has the following defects: ① If the two semicircular sleeves are misaligned during the bolt connection process, the two sealing gaskets inside will not be completely aligned when they are opposed to each other, and then after installation Water leakage will still occur soon; ②The gasket is embedded in the inner wall of the semicircular sleeve. The fit of the emergency repair pipeline is restricted by the installation of the semicircular sleeve. If the semicircular sleeve is not installed properly, the sealing effect will be reduced, which will make the emergency repair effect poor.

Of course, the Huff joint in the prior art also has an integrated seal, which has a good sealing effect, but it is necessary to disconnect the water source during emergency repairs, saw off the leaking pipeline, and then combine the two pipe sections together , this way of emergency repair will undoubtedly have a certain impact on people's lives

Furthermore, the two semicircular sleeves need to be screwed with multiple bolts during installation, which is troublesome to install, and it is not easy for emergency repair personnel to hold them during installation.

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