Grouting device for underground roadway support

Abstract

The utility model provides a grouting device for underground roadway support, which comprises a support, a slurry storage tank is arranged on the support, the bottom end of the slurry storage tank is connected with a slurry outlet pipe, the slurry outlet pipe is connected with a grouting guide pipe, a pressing plate is arranged in the slurry storage tank, the pressing plate can move up and down along the vertical direction, and the grouting guide pipe is connected with the slurry storage tank. And a slurry conveying pipe is connected to the upper part of the side wall of the slurry storage tank. According to the grouting device, the grout storage tank is arranged, the pressing plate capable of moving up and down is arranged in the grout storage tank, cement mortar in the grout storage tank is pressed out of the grouting guide pipe through movement of the pressing plate and then injected into a hole, and compared with an existing air pressure mode, the situation that gas is input into the hole, and the grouting effect is affected can be effectively prevented; the structure is simple, using is convenient, and manufacturing cost is low.

Description

Technical Field

[0001] The utility model belongs to the technical field of rock and soil equipment and relates to a grouting device for underground tunnel support. Background Art

[0002] In the process of supporting tunnels in underground mines, the materials for anchoring anchor rods mainly include cement rolls, resin rolls, cement mortar, etc. Cement mortar anchoring is full-length anchoring, and the anchoring effect is more solid and reliable. The process of cement mortar anchoring mainly involves manually mixing cement and sand in a mixing bucket according to the ratio, and then grouting them into the hole. The traditional method is to manually use a wooden stick to slowly feed the mortar into the hole. This method is prone to cause incomplete grouting in the hole, poor anchoring effect, and low grouting efficiency. The utility model patent with application number 2015204431162 provides a "simple full-angle anchor cable and anchor rod pressure grouting tank". It uses air pressure to discharge the mortar in the grouting tank for anchoring. However, when the mortar in the grouting tank is completely discharged, the high-pressure gas will enter the anchor hole, thereby dispersing the cement mortar in the anchor hole and affecting the anchoring effect. Utility Model Content

[0003] The purpose of the utility model is to provide a grouting device for underground tunnel support in order to solve the problem that the existing grouting equipment in the background technology has poor use effect.

[0004] To this end, the present invention adopts the following technical solutions:

[0005] A grouting device for underground tunnel support includes a bracket, a slurry storage tank is provided on the bracket, the bottom end of the slurry storage tank is connected to a slurry discharge pipe, the slurry discharge pipe is connected to a grouting conduit, a pressure plate is provided in the slurry storage tank, the pressure plate can move up and down in a vertical direction, a slurry delivery port is provided on the upper part of the side wall of the slurry storage tank, and the slurry delivery port is connected to the slurry delivery pipe.

[0006] Furthermore, a slurry discharge valve is provided on the slurry discharge pipe.

[0007] Furthermore, the pressing plate is arranged horizontally.

[0008] Furthermore, a support frame is provided on the top of the slurry storage tank, an electric telescopic rod is provided on the support frame, a through hole is provided on the top of the slurry storage tank, the electric telescopic rod passes through the through hole, and the bottom end of the electric telescopic rod is connected to the pressure plate.

[0009] Furthermore, the electric telescopic rod is arranged vertically.

[0010] Furthermore, the slurry delivery pipe is arranged at an angle, and a funnel is provided at one end of the slurry delivery pipe away from the slurry storage tank.

[0011] The beneficial effects of the present invention are as follows: a slurry storage tank is provided and a pressure plate which can move up and down is provided in the slurry storage tank, and the cement mortar in the slurry storage tank is pressed out from the grouting pipe through the movement of the pressure plate, and then injected into the hole. Compared with the existing method of using air pressure, it can effectively prevent gas from being input into the hole and affecting the grouting effect; the structure is simple, the method of use is convenient, and the manufacturing cost is low. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a structural diagram of the utility model;

[0013] In the figure, 1- bracket, 2- slurry storage tank, 3- slurry discharge pipe, 4- grouting conduit, 5- slurry discharge valve, 6- pressure plate, 7- support frame, 8- electric telescopic rod, 9- through hole, 10- slurry delivery port, 11- slurry delivery pipe, 12- funnel. DETAILED DESCRIPTION

[0014] The utility model is described in detail below with reference to the accompanying drawings:

[0015] like Figure 1 As shown, a grouting device for underground tunnel support includes a bracket 1, a slurry storage tank 2 for storing cement mortar is provided on the bracket, the bottom end of the slurry storage tank 2 is connected to a slurry discharge pipe 3, the slurry discharge pipe 3 is connected to a grouting conduit 4, and cement mortar can be injected into the anchor hole through the grouting conduit 4. A slurry discharge valve 5 is also provided on the slurry discharge pipe 3. A horizontally arranged pressure plate 6 is provided in the slurry storage tank 2. The shape of the pressure plate 6 is adapted to the cross-section of the slurry storage tank 2. The pressure plate 6 can move up and down in the vertical direction. By moving the pressure plate 6 downward, pressure can be applied to the cement mortar in the slurry storage tank 2, so that the cement mortar is discharged through the grouting conduit 4. Specifically, A support frame 7 is provided on the top of the slurry storage tank 2, and a vertically arranged electric telescopic rod 8 is provided on the support frame 7. A through hole 9 is provided on the top of the slurry storage tank 8, and the electric telescopic rod 8 passes through the through hole 9. The bottom end of the electric telescopic rod 8 is connected to the pressing plate 6, and the pressing plate 6 can be driven up and down by the electric telescopic rod 8. A slurry delivery port 10 is provided on the upper part of the side wall of the slurry storage tank 2, and a slurry delivery pipe 11 is connected to the slurry delivery port 10. A funnel 12 is provided at the end of the slurry delivery pipe 11 away from the slurry storage tank 2. Cement mortar can be input into the slurry storage tank 2 through the slurry delivery pipe 11. The funnel 12 can facilitate pouring mortar into the slurry delivery pipe 11.

[0016] The usage of this utility model is as follows:

[0017] When in use, first shorten the electric telescopic rod 8 so that the pressure plate 6 moves upward to above the grouting port 10, and then the operator can pour cement mortar into the funnel 12, and the cement mortar is input into the slurry storage tank 2 through the slurry delivery pipe 11, and then insert the grouting guide tube 4 into the anchor hole, open the slurry discharge valve 5 and slowly extend the electric telescopic rod 8 to move the pressure plate 6 downward to perform the grouting operation. By moving the pressure plate 6 downward, pressure can be applied to the cement mortar in the slurry storage tank 2, so that the cement mortar is discharged through the grouting guide tube 4, and the cement mortar is injected into the anchor hole. During the grouting process, the grouting guide tube 4 is slowly pulled out from the anchor hole to complete the grouting. The use method is convenient. Compared with the existing device, when the mortar in the slurry storage tank 2 is completely discharged, it can effectively prevent gas from entering the anchor hole and affecting the grouting effect.

Claims

1. A grouting device for underground tunnel support, characterized in that: The invention comprises a bracket (1), wherein a slurry storage tank (2) is provided on the bracket (1), a slurry discharge pipe (3) is connected to the bottom end of the slurry storage tank (2), and the slurry discharge pipe (3) is connected to a grouting conduit (4), a pressing plate (6) is provided in the slurry storage tank (2), and the pressing plate (6) can move up and down in a vertical direction, and a slurry delivery port (10) is provided on the upper part of the side wall of the slurry storage tank (2), and a slurry delivery pipe (11) is connected to the slurry delivery port (10).

2. A grouting device for underground tunnel support according to claim 1, characterized in that: The slurry discharge pipe (3) is provided with a slurry discharge valve (5).

3. A grouting device for underground tunnel support according to claim 1, characterized in that: The pressing plate (6) is arranged horizontally.

4. A grouting device for underground tunnel support according to claim 1, characterized in that: A support frame (7) is provided on the top of the pulp storage tank (2), an electric telescopic rod (8) is provided on the support frame (7), a through hole (9) is provided on the top of the pulp storage tank (2), the electric telescopic rod (8) passes through the through hole (9), and the bottom end of the electric telescopic rod (8) is connected to the pressing plate (6).

5. The grouting device for underground tunnel support according to claim 4, characterized in that: The electric telescopic rod (8) is arranged vertically.

6. The grouting device for underground tunnel support according to claim 1, characterized in that: The slurry delivery pipe (11) is arranged at an angle, and a funnel (12) is provided at one end of the slurry delivery pipe (11) away from the slurry storage tank (2).

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