CN220645966U - Grouting tool for mine tunnel - Google Patents

Abstract

The utility model discloses a grouting tool for mine tunnels, which includes a grouting pipe and a positioning cylinder. A threaded hole is provided at the top of the positioning cylinder. A threaded rod is threadedly connected to the inner wall of the threaded hole. The inner bottom wall of the positioning cylinder A connecting block is elastically connected through a first spring. The connecting block is rotationally connected to one end of the threaded rod. The side wall of the threaded rod is rotationally connected to an installation sleeve. The side walls of the installation sleeve are symmetrically and elastically connected through a plurality of second springs. plate, each side wall of the connecting plate is fixedly connected with a plurality of positioning rods, and each of the positioning rods is slidingly connected inside the chute. This utility model can fill the gaps in the inner wall of the tunnel by grouting through the grouting pipe, thereby increasing the firmness of the tunnel; after grouting, the threaded rod is used to drive the second spring to squeeze the positioning rod, and the grouting pipe is stably fixed in place. The support is provided in the drill hole to make the side wall of the tunnel stronger and provide stable support and tunnel support.

Description

A grouting tool for mine tunnels

Technical field

The utility model relates to the technical field of mine tunnel grouting, and in particular to a grouting tool for mine tunnels.

Background technique

In the mine tunnel engineering, since the excavation of the tunnel in the rock mass will cause stress changes in the rock mass, in order to improve the mechanical properties of the tunnel surrounding rock and increase the strength of the rock mass to ensure safety, drilling holes in the mine tunnel and installing After drilling is completed, grout is injected into the hole to reinforce the rock mass. The existing grouting device includes a grouting pump, a hole sealing device, and a grouting pipe connected to the outlet of the grouting pump.

At present, in order to improve the safety and stability of the mine, holes are usually drilled and grouted on the side walls to increase the firmness of the side walls. However, the current grouting pipe lacks a fixing device, making it impossible to fix the grouting pipe in the drilled hole. Fixing can only be done by waiting for the slurry to solidify and then acting as a bonding agent. However, due to the lack of a supporting and fixing device, stable support cannot be provided for a long time, which has certain limitations.

Utility model content

The purpose of this utility model is to propose a grouting tool for mine tunnels in order to solve the shortcomings existing in the prior art.

In order to achieve the above purpose, the present utility model adopts the following technical solutions:

A grouting tool for mine tunnels, including a grouting pipe and a positioning barrel. A threaded hole is provided at the top of the positioning barrel. A threaded rod is threadedly connected to the inner wall of the threaded hole. The inner bottom wall of the positioning barrel is elastic through a first spring. A connecting block is connected, and the connecting block is rotationally connected to one end of the threaded rod. The side wall of the threaded rod is rotationally connected to an installation sleeve. The side walls of the installation sleeve are symmetrically and elastically connected to a connecting plate through a plurality of second springs. A plurality of positioning rods are fixedly connected to the side walls of the connecting plate, and a chute is symmetrically provided on the inner wall of the positioning cylinder. Each of the positioning rods is slidably connected inside the chute.

Preferably, the side wall of the chute is provided with a plurality of through holes, and the positioning cylinder is slidably connected to the inner wall of the grouting pipe.

Preferably, the side wall of the grouting pipe is provided with a plurality of positioning holes, and the side wall of the grouting pipe is provided with a plurality of grouting holes.

Preferably, the positioning rod penetrates through the through hole and the positioning hole in sequence and then extends to the outside of the grouting pipe.

Preferably, one end of the second spring is fixedly connected to the side wall of the installation sleeve, and one end of the second spring is fixedly connected to the side wall of the connecting plate.

Preferably, one end of the first spring is fixedly connected to the inner bottom wall of the positioning cylinder, and the other end of the first spring is fixedly connected to the bottom wall of the connecting plate.

Beneficial effects of this utility model:

1. Set up structures such as a positioning cylinder, a threaded rod and a positioning rod. After the grouting is completed through the grouting pipe, insert the positioning cylinder into the grouting pipe. By rotating the threaded rod, a reaction force is exerted on the threaded rod by squeezing the first spring. , to improve the stability of the threaded rod, the threaded rod drives the positioning rod to slide downward inside the chute. When the positioning rod moves to the through hole, under the elastic action of the second spring, the positioning rod penetrates the through hole and the positioning hole in sequence. Finally, the positioning rod fits tightly with the tunnel, so that the positioning rod will not retract under the outward pulling force of the threaded rod, thus ensuring that the positioning rod closely fits the side wall of the grouting drill hole, which is the mine tunnel. Use grouting tools to provide stable support;

2. Grouting through the grouting pipe can fill the gaps in the inner wall of the tunnel and increase the firmness of the tunnel; after grouting, use the threaded rod to drive the second spring to squeeze the positioning rod to stably fix the grouting pipe to the laid The support is provided in the borehole to make the side wall of the tunnel stronger and provide stable support and tunnel support.

Description of drawings

Figure 1 is a schematic structural diagram of a grouting tool for mine tunnels proposed by the utility model.

Figure 2 is a schematic structural diagram of the positioning barrel of the grouting tool for mine tunnels proposed by the present invention before operation.

Figure 3 is a front view of the grouting pipe in the grouting tool for mine tunnels proposed by the present utility model.

In the picture: 1 grouting pipe, 2 positioning hole, 3 grouting hole, 4 positioning cylinder, 5 threaded hole, 6 threaded rod, 7 connecting block, 8 first spring, 9 installation sleeve, 10 second spring, 11 connecting plate , 12 positioning rods, 13 through holes, 14 chute.

Detailed ways

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only part of the embodiments of the present utility model, not all implementations. example.

Referring to Figures 1-3, a grouting tool for mine tunnels includes a grouting pipe 1 and a positioning barrel 4. A threaded hole 5 is provided at the top of the positioning barrel 4. A threaded rod 6 is threadedly connected to the inner wall of the threaded hole 5. The positioning barrel 4 The inner bottom wall is elastically connected to a connecting block 7 through the first spring 8. The first spring 8 exerts a reaction force on the threaded rod 6, thereby improving the stability of the threaded rod 6. The connecting block 7 is rotationally connected to one end of the threaded rod 6. The side wall of the threaded rod 6 is rotatably connected to an installation sleeve 9. The side walls of the installation sleeve 9 are symmetrically and elastically connected to a connecting plate 11 through a plurality of second springs 10. The side walls of each connecting plate 11 are fixedly connected to a plurality of positioning rods 12 for positioning. The inner wall of the barrel 4 is symmetrically provided with a chute 14, and each positioning rod 12 is slidably connected inside the chute 14.

A plurality of through holes 13 are opened on the side wall of the chute 14. The threaded rod 6 drives the positioning rod 12 to slide downward inside the chute 14. When the positioning rod 12 moves to the through hole 13 opened in the chute 14, the second spring Under the elastic action of 10, the positioning rod 12 penetrates through the through hole 13 and the positioning hole 2 in sequence, so that the positioning rod 12 is tightly attached to the side wall of the tunnel, and the positioning cylinder 4 is slidingly connected to the inner wall of the grouting pipe 1, and passes through the grouting pipe. 1. After the grouting is completed, insert the positioning cylinder 4 into the grouting pipe 1.

A plurality of positioning holes 2 are provided on the side wall of the grouting pipe 1, and a plurality of grouting holes 3 are provided on the side wall of the grouting pipe 1. During the grouting process, the grout passes through the plurality of grouting holes 3 provided on the side wall of the grouting pipe 1. Grout the side walls of the tunnel.

The positioning rod 12 penetrates through the through hole 13 and the positioning hole 2 in sequence and extends to the outside of the grouting pipe 1. After the positioning rod 12 is tightly attached to the side wall of the tunnel, the positioning rod 12 will not be pulled under the tension generated when the threaded rod 6 rotates upward. Retract to confirm that the positioning rod 12 is tightly attached to the side wall of the grouting drill hole.

One end of the second spring 10 is fixedly connected to the side wall of the installation sleeve 9 , and one end of the second spring 10 is fixedly connected to the side wall of the connecting plate 11 . The positioning rod 12 moves to the through hole 13 opened in the chute 14 . When the elasticity of the second spring 10 Under the action, the positioning rod 12 is made to penetrate through the through hole 13 and the positioning hole 2 in sequence, so that the positioning rod 12 is tightly attached to the side wall of the tunnel.

One end of the first spring 8 is fixedly connected to the inner bottom wall of the positioning cylinder 4, the other end of the first spring 8 is fixedly connected to the bottom wall of the connecting plate 11, the top end of the connecting block 7 is rotationally connected to one end of the threaded rod 6, and the bottom end of the connecting block 7 is connected to the bottom wall of the connecting plate 11. The first spring 8 is fixedly connected, and when the threaded rod 6 rotates, the first spring 8 will not affect the threaded rod 6 .

In the present utility model, holes are first drilled on the side wall of the tunnel, and then the grouting pipe 1 is inserted into the hole to prepare for grouting. During the grouting process, the grout passes through a plurality of grouting holes 3 opened on the side wall of the grouting pipe 1. Grouting the side walls of the tunnel to increase the firmness of the side walls;

After the grouting through the grouting pipe 1 is completed, insert the positioning cylinder 4 into the grouting pipe 1. After the positioning cylinder 4 is completely inserted into the grouting pipe 1, the through hole 13 and the positioning hole 2 are at the same horizontal position. Turn the thread Rod 6, by rotating the threaded rod 6, squeezes the first spring 8, and the first spring 8 exerts a reaction force on the threaded rod 6, thereby improving the stability of the threaded rod 6, where the gap between the threaded rod 6 and the first spring 8 A connecting block 7 is provided, the top end of the connecting block 7 is rotationally connected to one end of the threaded rod 6, and the bottom end of the connecting block 7 is fixedly connected to the first spring 8, so that when the threaded rod 6 rotates, the first spring 8 will not move against the threaded rod 6. causing influence; the threaded rod 6 drives the positioning rod 12 to slide downward inside the chute 14. When the positioning rod 12 moves to the through hole 13 opened in the chute 14, under the elastic action of the second spring 10, the positioning rod 12 After passing through the through hole 13 and the positioning hole 2 in sequence, the positioning rod 12 is tightly attached to the side wall of the tunnel; the positioning rod 12 will not retract under the pulling force generated when the threaded rod 6 rotates upward, thereby confirming that the positioning rod 12 is tightly Fitted to the side wall of the drilling hole for grouting;

Grouting through the grouting pipe 1 can fill the gaps in the inner wall of the tunnel and increase the firmness of the tunnel; after grouting, the threaded rod 6 is used to drive the second spring 10 to squeeze the positioning rod 12 to stably fix the grouting pipe 1 to Support is provided in the drilled holes to make the side walls of the tunnel stronger and provide stable support and tunnel support.

The above are only preferred specific embodiments of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person familiar with the technical field can, within the technical scope disclosed by the present utility model, implement the present utility model according to the present utility model. Novel technical solutions and utility model concepts, including equivalent substitutions or changes, shall be covered by the protection scope of the present utility model.

Claims (6)

1. The utility model provides a slip casting instrument for mine tunnel, includes slip casting pipe (1) and positioning tube (4), its characterized in that, screw hole (5) have been seted up on positioning tube (4) top, screw hole (5) inner wall threaded connection has threaded rod (6), connecting block (7) are connected with through first spring (8) elastic connection to the inner bottom wall of positioning tube (4), connecting block (7) are connected with threaded rod (6) one end rotation, threaded rod (6) lateral wall rotates and is connected with installation cover (9), installation cover (9) lateral wall has connecting plate (11) through a plurality of second spring (10) symmetrical elastic connection, every equal fixedly connected with locating lever (12) of connecting plate (11) lateral wall, spout (14) have been seted up to positioning tube (4) inside lateral wall symmetry, every equal sliding connection of locating lever (12) is inside spout (14).

2. The grouting tool for the mine tunnel according to claim 1, wherein a plurality of through holes (13) are formed in the side wall of the sliding groove (14), and the positioning cylinder (4) is slidably connected to the inner wall of the grouting pipe (1).

3. The grouting tool for the mine tunnel according to claim 1, wherein a plurality of positioning holes (2) are formed in the side wall of the grouting pipe (1), and a plurality of grouting holes (3) are formed in the side wall of the grouting pipe (1).

4. Grouting tool for mine tunnel according to claim 1, characterized in that the positioning rod (12) sequentially penetrates through the through hole (13) and the positioning hole (2) and then extends to the outside of the grouting pipe (1).

5. The grouting tool for mine roadways according to claim 1, wherein one end of the second spring (10) is fixedly connected with the side wall of the mounting sleeve (9), and one end of the second spring (10) is fixedly connected with the side wall of the connecting plate (11).

6. The grouting tool for the mine tunnel according to claim 1, wherein one end of the first spring (8) is fixedly connected with the inner bottom wall of the positioning cylinder (4), and the other end of the first spring (8) is fixedly connected with the bottom wall of the connecting plate (11).