A auxiliary haulage roadway grouting anchor cable supporting device

Abstract

The utility model relates to the technical field of coal mine auxiliary haulage roadway support anchor cable construction technology, and specifically discloses a kind of auxiliary haulage roadway grouting anchor cable supporting device, including the anchor rod of the drill bit being provided with, further include tray and grout stopper being connected to the outer side of anchor rod, grout stopper is opened in the storage compartment, and the entrance of the opening of the end part of storage compartment is distributed opposite to drill bit is opened.Being provided with the auxiliary haulage roadway grouting anchor cable supporting device of the utility model, a small amount of slurry is made into storage compartment and is urged to exert pressure to both sides during grouting process, i.e. the inner diameter of grout stopper is more fitted with anchor rod outer wall thread after being pressed, and grout stopper has the outer wall of inclined surface and is more fitted with roadway borehole inner wall, increase the friction of grout stopper in borehole, realize the extrusion force generated by slurry to be changed from waste to treasure, and before extrusion force reaches tray, reasonable extrusion force is used as the radial adhesion force of grout stopper, and then make anchor cable can keep stable at specified height position in roadway, increase structural safety.

Claims

1. A grouting anchor cable support device for an auxiliary haulage roadway, comprising an anchor rod (1) equipped with a drill bit (11), characterized in that, It also includes a tray (3) threaded to the outside of the anchor rod (1) and a grout stopper (4), wherein a storage chamber (41) is provided in the grout stopper (4). The storage chamber (41) has an opening at one end, which is opposite to the drill bit (11) and has an entrance (411). The stop plug (4) also has a plug chamber (42) located outside the storage chamber (41).

2. The auxiliary haulage roadway grouting anchor cable support device according to claim 1, characterized in that, The tray (3) is provided with a notch (31), and the stop plug (4) is fixedly installed with a bottom plug (43) embedded in the notch (31).

3. The auxiliary haulage roadway grouting anchor cable support device according to claim 2, characterized in that, The bottom plug (43) has a bottom chamber (431) that communicates with the plug chamber (42).

4. The auxiliary haulage roadway grouting anchor cable support device according to claim 1, characterized in that, It also includes a ring plug (44) fixedly installed on the outside of the grout stop plug (4), the ring plug (44) being disposed between the tray (3) and the tunnel (2).

5. The auxiliary haulage roadway grouting anchor cable support device according to claim 4, characterized in that, The ring plug (44) is provided with an inclined surface that fits into the opening port of the tunnel (2).

6. The auxiliary haulage roadway grouting anchor cable support device according to claim 5, characterized in that, The ring plug (44) is fixedly installed with protrusions (442) that are evenly distributed on the inclined surface.

7. The auxiliary haulage roadway grouting anchor cable support device according to claim 4, characterized in that, The ring plug (44) has a channel (441) that connects to the plug chamber (42).

8. The auxiliary haulage roadway grouting anchor cable support device according to claim 4, characterized in that, Multiple plate protrusions (32) are fixedly installed on the tray (3), and the ring plug (44) has a groove (443) for the plate protrusions (32) to be inlaid.

9. A grouting anchor cable support device for auxiliary haulage roadways according to claim 6, characterized in that, The protrusion (442) and the inner wall of the opening port of the tunnel (2) are in sliding contact under the drive.

10. A grouting anchor cable support device for auxiliary haulage roadways according to claim 1, characterized in that, The stop plug (4) is specifically a rubber cone-shaped plug.

Images