A grouting anchor cable sealing device and a grouting anchor cable

A technology of grouting anchor cable and hole sealing device, which is applied in the installation of bolts, mining equipment, earthwork drilling and mining, etc., and can solve the problems of poor grouting effect, low work efficiency, and automatic hole sealing of grouting anchor cables.

Active Publication Date: 2020-10-20
CHINA UNIV OF MINING & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In view of the above analysis, the present invention aims to provide a grouting anchor cable sealing device and a grouting anchor cable to solve the problems that the existing grouting anchor cables cannot realize automatic hole sealing, low work efficiency and poor grouting effect

Method used

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  • A grouting anchor cable sealing device and a grouting anchor cable
  • A grouting anchor cable sealing device and a grouting anchor cable
  • A grouting anchor cable sealing device and a grouting anchor cable

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Embodiment 1

[0033] A specific embodiment of the present invention discloses a grouting anchor cable sealing device, such as Figure 1 to Figure 2 As shown, it includes housing 1-8, spring 1-3 and grout stop piston 1-4, housing 1-8 is provided with a piston chamber for installing grout stop piston 1-4, and grout stop piston 1-4 is located at inside the piston chamber, and can move in the piston chamber; one end of the grout stopper 1-4 is fixedly connected with the bottom wall of the piston chamber by a spring 1-3, and the other end of the grout stopper 1-4 is a free end, which can be In contact with the slurry entering the piston cavity, that is to say, the tail end of the slurry stopper 1-4 is connected to the spring 1-3, the head end of the slurry stopper 1-4 can contact the slurry in the piston cavity, and the slurry pressure can act On the end face of the head end of the stopper 1-4; the shell 1-8 is provided with an inflow channel 1-5 and an outflow channel 1-7, and the inflow channe...

Embodiment 2

[0045] Yet another embodiment of the present invention discloses a grouting anchor cable. The grouting anchor cable sealing device in Embodiment 1 is used to seal the grouting port of the grouting pipe 8 of the grouting anchor cable, as shown in Figure 3 to Figure 5 As shown, the grouting anchor cable includes a cable body 3 and a grouting anchor cable sealing device 1. The cable body 3 is composed of a plurality of steel strands 11 spirally wound around the grouting pipe 8, and the spirally wound steel strands 11 connect the grouting pipe 8, the pitch of the wound steel strand 11 is greater than the diameter of the steel strand 11; the grouting pipe 8 is provided with a grout outlet 12; The grouting port connection.

[0046] During implementation, put the cable body 3 of the grouting anchor cable into the anchor cable hole, install the external grout stopper 6 and the tray 5 in sequence, pre-tighten the anchorage 4, connect the outflow channels 1-7 and the grouting pipe 8 T...

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Abstract

The invention relates to a grouting anchor cable hole sealing device and a grouting anchor cable, and belongs to the technical field of grouting anchor cable equipment. The grouting anchor cable holesealing device and the grouting anchor cable solves the problems that the existing grouting anchor cable cannot achieve automatic hole sealing and the grouting effect is poor. The grouting anchor cable hole sealing device comprises a shell, a spring and a stop-grouting piston, wherein the shell body is internally provided with a piston chamber for installing the stop-grouting piston, the stop-grouting piston is arranged in the piston chamber, and can move in the piston chamber under the action of grout pressure; one end of the stop-grouting piston is fixedly connected with the bottom wall of the piston chamber through the spring, and the other end of the stop-grouting piston can contact with the grout in the piston chamber; the shell is provided with an inflow channel and an outflow channel, the inflow channel and the outflow channel communicate with the piston chamber of an outflow port correspondingly through an inflow port; the inflow channel and the piston chamber are always in a communicating state, and the outflow channel and the piston chamber are in a communicating state or in an off-state through the movement of the stop-grouting piston in the piston chamber. The groutinganchor cable hole sealing device and the grouting anchor cable realizes the automatic hole sealing of the grouting anchor cable, improves the working efficiency and has good grouting effect.

Description

technical field [0001] The invention relates to the technical field of grouting anchor cable equipment, in particular to a hollow grouting anchor cable sealing device and a grouting anchor cable used in mines, tunnels, and underground engineering support, and in particular to a grouting anchor cable sealing hole Device and grouting anchor cable. Background technique [0002] In underground projects such as mine shafts, subways, tunnels, etc., for rock masses with developed cracks, structures, and broken loose rocks, especially for underground projects with high pressure, it is necessary to use grouting anchor cables to reinforce the rock mass to improve the quality of the surrounding rock. own carrying capacity. The grouting anchor cable can effectively inhibit the occurrence of joints and cracks in the surrounding rock, and can also prevent the rock mass and the grouting slurry in the surrounding rock from forming stones again. Inject into the pores, cracks and other stru...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21D20/02
CPCE21D20/028
Inventor 姚强岭回新冬王烜辉李学华夏泽于利强
Owner CHINA UNIV OF MINING & TECH
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