Underwater grouting equipment for large-volume cavity

Abstract

The invention discloses underwater grouting equipment for a large-volume cavity. The device comprises a grouting pipe, the grouting pipe is connected with a non-return shell, the non-return shell is connected with a connecting ring, and the connecting ring is connected with a spray head; a supporting pin is fixedly arranged in the non-return shell, the outer portion of the supporting pin is hinged to the head end of a partition plate through a torsional spring, and the tail end of the partition plate is movably connected with the inner wall of the non-return shell. The two partition plates are arranged to be used in cooperation with the torsional spring, the two partition plates are folded during grouting so as to be separated from the non-return shell, slurry can be poured smoothly, when slurry flows back, the partition plates make contact with the non-return shell to seal the non-return shell, and therefore the slurry is prevented from flowing back, and the grouting efficiency is improved. Therefore, the effects of preventing the slurry from flowing back and improving the pouring quality are achieved.

Description

Technical field [0001] The present invention relates to the technical field of water conservancy and hydropower engineering, in particular a kind of underwater grouting equipment for large volume cavity. Background [0002] A Chinese patent disclosed no. CN209243729U discloses an underwater grouting hole drilling equipment, comprising a first support plate, the first support plate is provided with a first chute on one side of the first support plate; under the joint action of the turntable, the rope collection disc, the wire collection rope and the second motor, the height of the probe device can be adjusted according to the underwater conditions, thereby reducing the wear degree of the probe nozzle, ensuring the service life of the probe nozzle, near the grout hole, the first motor works, in the first bearing, the first shaft, the second bearing, Under the joint action of the second shaft, threaded column and thread cap, the position of the perforation device can be adjusted, so...

AI Technical Summary

Problems solved by technology

[0003] In the above technical solution, it is proposed that the positioning of the underwater grouting hole is completed through the probe nozzle, but it does not take into account that after the grouting is completed, the slurry in the cavity will flow back along the grouting hole, resulting in The slurry escapes, so there will be gaps in the solidified slurry again, resulting in abnormal engineering quality; therefore, the present invention provides an underwater grouting equipment for large-volume cavities

Images