Steel connection water stopping needle

Abstract

The invention discloses a steel connection water stopping needle which comprises a connection hexagonal slip casting nozzle, a rubber ball valve, a high pressure spring, gaskets, expand rings and a high-intensity hollow screw. The gaskets comprise the first gasket and the second gasket, the expand rings comprise the first expand ring and the second expand ring, the upper end of the high-intensity hollow screw is sequentially provided with the second expand ring, the second gasket, the first expand ring and the first gasket in a sleeved manner, and the top end of the high-intensity hollow screw is connected with the high pressure spring; and the upper end of the high pressure spring is provided with the rubber ball valve, and the rubber ball valve and the high pressure spring are both installed inside the connection hexagonal slip casting nozzle. The connection hexagonal slip casting nozzle is adopted in the steel connection water stopping needle and is made of steel materials, the using intensity is high, the slurry leakage phenomenon is avoided, and the using stability and the using safety are good; the rubber ball valve is further adopted in the steel connection water stopping needle, and therefore the slurry leakage phenomenon is avoided; according to the steel connection water stopping needle, the oil nozzle and an iron tube are integrated, the safety performance is high, use is simple and convenient, and the production efficiency is greatly improved.

Description

technical field [0001] The invention relates to the field of grouting, in particular to a steel one-piece waterstop needle. Background technique [0002] Grouting is divided into ceramic process grouting and construction engineering grouting. In construction engineering, some curable grout is injected into the cracks or pores of the rock and soil foundation with an appropriate method, and it is improved by means of replacement, filling, extrusion, etc. methods of physical and mechanical properties. There will be grout leakage during grouting. At present, in the existing construction industry, people use aluminum water-stop needles to reduce grout leakage. Aluminum water-stop needles use the principle of ring pressure fastening. The stop valve can prevent the grouting fluid from being squeezed and sprayed backwards in the high-pressure pile, but the strength of the existing aluminum water stop needle is low, and the thread locking is adopted between the oil nozzle of the alu...

AI Technical Summary

Problems solved by technology

There will be grout leakage during grouting. At present, in the existing construction industry, people use aluminum water-stop needles to reduce grout leakage. The aluminum water-stop needles use the principle of ring pressure fastening. The stop valve can prevent the grouting fluid from being squeezed and sprayed backwards in the high-pressure pile, but the strength of the existing aluminum water stop needle is low, and the thread locking is adopted between the oil nozzle of the aluminum water stop needle and the aluminum rod, and the pressure reaches 135 thousand After handcuffing, it is easy for the nozzle to fall off, and the slurry will splash into the eyes during grouting, and the safety of use is low; when the aluminum water-stop needle ring is tightened, the aluminum rod and the high-strength screw are locked tightly and it is easy to slip silk, which brings inconvenience to people's use

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