Sealing device for positioning points in holes of process grouting

A sealing device for positioning points in holes of process grouting, comprising:

• an isolation component sleeved on an anchor cable body,
• wherein the isolation component is detachably connected to an isolation sleeve through a coupling component, and the isolation sleeve is configured to be sleeved on the anchor cable body to send the isolation component into a corresponding position in a borehole and cooperates with the isolation component to perform a fixed-point isolation on a surrounding rock area in the borehole;
• the isolation component comprises a first airbag and a second airbag that are arranged opposite to each other;
• the first airbag and the second airbag are communicated by a connection pipe, and the second airbag is provided with a first airflow channel;
• the isolation sleeve is provided with a second airflow channel that is configured to communicate to the first airflow channel;
• the second airflow channel is connected to an inflation device that is configured to inflate the first airbag and the second airbag to achieve the fixed-point isolation after they expand and contact with a hole wall;
• the first airbag and the second airbag are respectively provided with first and second limit baffles on two sides, so that the first airbag and the second airbag only deploy towards a drilling hole when inflated;
• the coupling component comprises a docking part provided outside the second limit baffle and corresponding to the isolation sleeve;
• the docking part is provided with a first magnet, and the isolation sleeve is provided with a second magnet corresponding to the first magnet at one end facing the isolation component;
• the first magnet and the second magnet are configured to be coupled and adsorbed to facilitate the isolation sleeve to send the isolation component to the corresponding position in the borehole for rock partition and fixed-point isolation, after the isolation is completed, the first magnet and the second magnet are configured to be detached under an external force to recover the isolation sleeve;
• a sealing space is formed between the first limit baffle and the second limit baffle, and the sealing space is communicated to a first slurry channel;
• the isolation sleeve is provided with a second slurry channel that is configured to communicate to the first slurry channel, and the second slurry channel is connected to a grouting valve for injecting grout into the sealing space to achieve firm fixed-point isolation;
• the docking part is provided with an installation groove, and the installation groove is provided with the first magnet;
• the second magnet matches a shape of the installation groove, and the second magnet is configured to be inserted into the installation groove and coupled and adsorbed with the first magnet, so that the docking part is tightly coupled with the isolation sleeve.