A grouting gun head

Abstract

The invention discloses a grouting gun head. The grouting gun head comprises a shell with a fixed table at the upper end, and a fixed flange is arranged at the upper end of the fixed table, a groutingpipe is inserted into the center of the fixed flange, and the grouting pipe is fixed with the fixed flange through a fastener; an upper rubber ring, an upper plug, a lower rubber ring and a lower plug are sequentially arranged inside the shell from top to bottom, supporting rods are arranged between the fixed flange and the upper rubber ring, and the supporting rods are located on the outer sideof the grouting pipe; movable pull rods penetrating through the upper rubber ring is arranged at the top end of the upper plug, the top ends of the movable pull rods are provided with a crosspiece, and connecting rods are arranged between the upper plug and the lower rubber ring; the upper rubber ring, the upper plug and the lower rubber ring sleeves the grouting pipe correspondingly and can slideup and down along the grouting pipe, the lower plug is fixed at the lower end of the grouting pipe, and a plurality of grouting holes are formed in the grouting pipe and the shell correspondingly. The grouting gun head is good in sealing effect, high in stability during operation, and disassembly and cleanness are easily carried out.

Description

technical field [0001] The invention belongs to the field of building engineering construction equipment, and in particular relates to a grouting gun head. Background technique [0002] Split grouting is a foundation reinforcement method, which mainly changes the properties of the soil through grouting. The working process of the split grouting gun head is: determine the grouting position, and then pass the mixed grout through splitting grouting. The grout holes are injected into the soil to achieve the purpose of improving the physical and mechanical properties of the soil. Since the split grouting requires high pressure to inject the grout into the soil, the sealing of the gun head and the stability of the fixed position are better. Now the mainstream splitting grouting nozzles all use ordinary grouting nozzles. The sealing measures are not only complicated, but also the sealing effect is not good enough. The nozzles are easy to shake during grouting and are not stable en...

AI Technical Summary

Problems solved by technology

Now the mainstream splitting grouting nozzles are all using ordinary grouting nozzles. The sealing measures are not only complicated, but also the sealing effect is not good enough. The nozzles are easy to shake during grouting and not stable enough.

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