Grout injector

Abstract

The invention provides a grout injector. The grout injector comprises a penetrating steel pipe, a gas feeding pipe and an elastic sleeve pipe; a grout injecting connector is arranged at the upper endof the penetrating steel pipe, and a high-pressure nozzle connector used for being connected with a high-pressure nozzle is arranged at the lower end of the penetrating steel pipe; the elastic sleevepipe is arranged on the outer side of the penetrating steel pipe in a sleeving mode, and the lower end of the elastic sleeve pipe is fixed to the penetrating steel pipe; a gas hollow cavity is formedin the middle of the elastic sleeve pipe; anti-sliding patches are arranged on the outer side of the elastic sleeve pipe; and the gas feeding pipe is arranged at the upper end of the elastic sleeve pipe, a gas feeding connector is arranged at the upper end of the gas feeding pipe, and the gas hollow cavity of the elastic sleeve pipe is connected with the lower end of the gas feeding pipe. The grout injector can be applied to improve the grout injecting effect of the grout injector.

Description

technical field [0001] The present application relates to the technical field of civil engineering construction, in particular to a grouting device. Background technique [0002] When performing the grouting process, a grouter is usually used for grouting. In the prior art, the structure of the injector is as figure 1 As shown, it includes: a through steel tube 11 , a pressurized tube 12 , a first rubber tube 13 and a second rubber tube 14 . Wherein, the penetrating steel pipe 11 passes through the first rubber tube 13 and the second rubber tube 14; the middle part of the penetrating steel pipe 11 is called the grouting pipe 15, and the grouting pipe 15 is provided with a plurality of grouting holes 16; The bottom of 11 is closed. The pressurizing tube 12 communicates with the first rubber tube 13 and the second rubber tube 14 . [0003] When the grouting device is used for grouting, the upper end of the penetrating steel pipe is connected to the grouting pump through th...

AI Technical Summary

Problems solved by technology

If the pressure exceeds this value, the grouting device will have insufficient friction between the rubber tube part and the inner wall of the steel pipe due to the excessive grouting pressure at the bottom, causing the grouting device to slip out of the steel pipe and the hole sealing will fail

[0006] (2) The grouting device in the prior art cannot solve the problem of blockage in the steel pipe

For example, when the steel pipe falls into mud and hardens, it is easy to make the grouter unable to continue to penetrate the steel pipe

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