A mobile grouting device for use in a well

Abstract

The utility model relates to mine support technical field provides a kind of underground mobile grouting device, including support frame (1), at least three supporting arms (2) are fixedly connected in the lateral wall of support frame (1), universal wheel (3) is installed on supporting arm (2);Sliding frame (4) is slidably penetrated on support frame (1), fixed frame (5) is fixedly connected on sliding frame (4), tank body (6) is fixedly connected on fixed frame (5), servo electric cylinder (7) is installed on support frame (1), the telescopic end of servo electric cylinder (7) is fixedly connected in fixed frame (5), tank body (6) is communicated with air inlet pipe (8) and slurry discharge pipe (9), the utility model can adjust the height of tank body, reduce the influence of gravity on grouting efficiency, while convenient mobile device, reduce manpower consumption.

Description

Technical Field

[0001] This utility model relates to the field of mine support technology, and more specifically, to a mobile underground grouting device. Background Technology

[0002] In the process of permanent support of underground roadways, cement mortar is often used as an anchoring agent when using secondary shotcrete mesh support or long anchor cable support. The pre-prepared grout is injected into the eyelet through a device, and then the anchor rod or anchor cable is installed into the eyelet to fully bond with the rock to form a whole, thereby achieving a safe and stable effect after roadway support.

[0003] Patent document CN222924477U discloses a mobile underground grouting device, belonging to the field of mine support technology. It solves the problems of current grouting equipment being unsuitable for on-site mobile grouting in underground roadways, and the inability to accurately control and uniformly grout during manual grouting, thus affecting the efficiency and quality of the grouting process. This utility model includes a tank, an air inlet pipe, and a grout outlet pipe. The tank is equipped with a lid, and a locking device is provided between the tank and the lid. The air inlet pipe is located in the upper part of the tank, and the grout outlet pipe is located at the bottom of the tank. This utility model has a simple structure, is lightweight, flexible, reliable, and practical, and can play an important role in various fields such as underground support in metal mines and pre-embedding of scientific drilling instruments.

[0004] Existing grouting devices have shortcomings in mobility and height adaptability: First, when the tank is loaded with grouting fluids such as cement slurry and resin, its own weight can usually reach tens of kilograms, and relying solely on manual handling requires a lot of physical strength; Second, the distribution height of anchor bolt holes on the tunnel rock wall varies, while the length of the grout discharge pipe of traditional devices is usually fixed and the tank does not have a height adjustment function. If the height of the free end of the grout discharge pipe is increased, the grouting fluid will resist the high pressure of the air due to gravity, resulting in a significant increase in the resistance of the grout returning upward, which affects the grouting efficiency and fullness. Utility Model Content

[0005] To overcome the shortcomings mentioned above, this utility model aims to provide a mobile grouting device for underground wells, which can adjust the height of the tank to reduce the impact of gravity on grouting efficiency, while also facilitating device movement and reducing manpower consumption.

[0006] A mobile downhole grouting device includes a support frame, at least three support arms fixed to the side wall of the support frame, and casters mounted on the support arms; a sliding frame extends through and slides along the support frame, a fixed frame is fixed to the sliding frame, a tank is fixed to the fixed frame, a servo electric cylinder is mounted on the support frame, the telescopic end of the servo electric cylinder is fixed to the fixed frame, and an air inlet pipe and a grout discharge pipe are connected to the tank.

[0007] Furthermore, valves are installed on both the air inlet pipe and the slurry discharge pipe.

[0008] Furthermore, the air intake pipe is connected to an external air pump.

[0009] Furthermore, a bellows is fitted on the outer side of the servo electric cylinder.

[0010] Furthermore, the lower end of the corrugated pipe is fixed to the support frame, and its upper end is fixed to the fixing frame.

[0011] Furthermore, a stabilizing frame is fixedly connected to the support frame, and the tank body slides on the stabilizing frame.

[0012] Furthermore, a handrail is fixedly attached to the stabilizer frame.

[0013] Furthermore, the tank body is provided with a sealing cap, and a locking mechanism is provided between the sealing cap and the tank body.

[0014] Furthermore, the locking mechanism includes a connecting frame fixed to the tank body, a screw rod passing through and screwed onto the connecting frame, and the lower end of the screw rod being rotatably connected to the cap.

[0015] Furthermore, a handle is fixedly connected to the upper end of the screw.

[0016] Compared with the prior art, the beneficial effects of this utility model are:

[0017] In this invention, the output of a servo electric cylinder causes the fixed frame to move the tank, thereby adjusting the height of the tank and raising the height of the connection between the grout discharge pipe and the tank, reducing the impact of gravity on the grout. At the same time, casters are provided to facilitate the movement of the device and reduce manpower consumption. Attached Figure Description

[0018] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0019] Figure 1 A schematic diagram of the overall structure of a mobile downhole grouting device. Figure 1 ;

[0020] Figure 2 A schematic diagram of the overall structure of a mobile downhole grouting device. Figure 2 .

[0021] In the diagram: 1. Support frame; 2. Support arm; 3. Casters; 4. Sliding frame; 5. Fixed frame; 6. Tank body; 7. Servo electric cylinder; 8. Air inlet pipe; 9. Slurry discharge pipe; 10. Stabilizing frame; 11. Handrail; 12. Cover; 13. Rubber plug; 14. Locking mechanism; 141. Connecting frame; 142. Screw; 143. Hand lever; 15. Corrugated pipe. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model. Specific implementation examples:

[0024] like Figure 1-2 As shown, a mobile downhole grouting device includes a support frame 1. A support arm 2 is fixedly connected to the side wall of the support frame 1, and casters 3 are mounted on the support arm 2 for easy movement of the device. The casters 3 are equipped with a braking mechanism. A sliding frame 4 passes through and slides along the support frame 1, and a fixed frame 5 is fixedly connected to the sliding frame 4. The fixed frame 5 is fixedly connected to a tank 6 for filling grouting fluid. A servo electric cylinder 7 is fixedly mounted on the support frame 1. In this embodiment, the servo electric cylinder 7 is model YDA50. Capable of withstanding a 100kg weight, the telescopic end of the servo electric cylinder 7 is fixedly connected to the mounting frame 5. An air inlet pipe 8 and a slurry discharge pipe 9 are connected to the tank body 6. The air inlet pipe 8 is located near the upper end of the tank body 6, and the slurry discharge pipe 9 is located below. Both the air inlet pipe 8 and the slurry discharge pipe 9 are equipped with valves (not shown in the figure). The air inlet pipe 8 is connected to an external air pump for applying high-pressure air. High-pressure air enters the tank body 6 through the air inlet pipe 8, forcing the grouting fluid into the slurry discharge pipe 9 and then into the anchor bolt hole. The output of the servo electric cylinder 7 causes the mounting frame 5 to move the tank body 6, adjusting its height. This raises the height of the connection between the slurry discharge pipe 9 and the tank body 6, reducing the impact of gravity on the grouting fluid. Casters 3 are also provided for easy movement of the device, reducing manpower consumption.

[0025] like Figure 1-2 As shown, a bellows 15 is fitted on the outside of the servo electric cylinder 7. The lower end of the bellows 15 is fixedly connected to the support frame 1, and the upper end is fixedly connected to the fixing frame 5. The bellows 15 covers the servo electric cylinder 7, which can protect the servo electric cylinder 7 from the influence of dust in the mine.

[0026] like Figure 1-2As shown, a stabilizing frame 10 is fixedly connected to the support frame 1. The stabilizing frame 10 has an opening adapted to the tank body 6. The tank body 6 slides within the opening of the stabilizing frame 10. The stabilizing frame 10 supports and limits the upper part of the tank body 6, improving the overall stability of the device. At the same time, a handrail 11 is fixedly connected to the stabilizing frame 10. The handrail 11 facilitates the movement of the device within the mine by the workers, and facilitates the injection of fluid into the anchor bolt holes at different locations.

[0027] like Figure 1-2 As shown, the upper end of the tank 6 is provided with a cover 12. Opening the cover 12 allows grout to be added into the tank 6. A rubber plug 13 is fixedly connected to the lower end face of the cover 12. The rubber plug 13 is adapted to the inner diameter of the tank 6. The rubber plug 13 improves the sealing effect between the cover 12 and the tank 6, making it difficult for high-pressure air to leak out from the connection between the cover 12 and the tank 6.

[0028] like Figure 1-2 As shown, a locking mechanism 14 is provided between the tank body 6 and the cover 12. The locking mechanism 14 includes a connecting frame 141 fixedly connected to the tank body 6. A screw 142 is threaded through and connected to the connecting frame 141. The lower end of the screw 142 is rotatably connected to the cover 12 through a bearing seat (not shown in the figure). Rotating the screw 142 causes relative movement between it and the connecting frame 141, thereby enabling the operator to open or close and lock the cover 12. When the cover 12 is closed, the cover 12 will not open when high-pressure air is applied to the tank body 6 through an external air pump connected to the air inlet pipe 8, thanks to the locking mechanism 14.

[0029] like Figure 1-2 As shown, a handle 143 is fixedly connected to the upper end of the screw 142, and the handle 143 is provided to facilitate the rotation of the screw 142.

[0030] like Figure 1-2 As shown, there are at least three support arms 2, and four in this embodiment. The included angle between two adjacent support arms 2 is the same. With three or more support arms 2, the movement can be more stable after installing casters 3.

[0031] The servo electric cylinder 7 is electrically connected to an external power supply and to an external controller (not shown in the figure).

[0032] The working principle of a mobile grouting device in this embodiment is as follows: the output of the servo electric cylinder 7 causes the fixed frame 5 to move the tank 6, thereby adjusting the height of the tank 6 and raising the height of the connection between the grout discharge pipe 9 and the tank 6, reducing the influence of gravity on the grouting fluid. At the same time, universal wheels 3 are provided to facilitate the movement of the device and reduce manpower consumption. High-pressure air is introduced into the tank 6 through the air inlet pipe 8, which pushes the grouting fluid into the grout discharge pipe 9 and into the anchor bolt hole, completing the grouting operation of the anchor bolt hole.

[0033] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A mobile downhole grouting device, characterized in that: The system includes a support frame (1), with at least three support arms (2) fixed to the side wall of the support frame (1), and casters (3) installed on the support arms (2); a sliding frame (4) runs through and slides on the support frame (1), a fixed frame (5) is fixed to the sliding frame (4), a tank body (6) is fixed to the fixed frame (5), a servo electric cylinder (7) is installed on the support frame (1), the telescopic end of the servo electric cylinder (7) is fixed to the fixed frame (5), and an air inlet pipe (8) and a slurry discharge pipe (9) are connected to the tank body (6).

2. The downhole mobile grouting device according to claim 1, characterized in that: Valves are provided on both the air inlet pipe (8) and the slurry discharge pipe (9).

3. The downhole mobile grouting device according to claim 2, characterized in that: The air inlet pipe (8) is connected to an external air pump.

4. The downhole mobile grouting device according to claim 1, characterized in that: The servo electric cylinder (7) is fitted with a bellows (15) on its outer side.

5. A mobile downhole grouting device according to claim 4, characterized in that: The lower end of the corrugated pipe (15) is fixed to the support frame (1), and its upper end is fixed to the fixing frame (5).

6. The downhole mobile grouting device according to claim 1, characterized in that: A stabilizing frame (10) is fixedly connected to the support frame (1), and the tank body (6) slides on the stabilizing frame (10).

7. A mobile downhole grouting device according to claim 6, characterized in that: A handrail (11) is fixedly attached to the stabilizer (10).

8. A mobile downhole grouting device according to claim 1, characterized in that: The tank body (6) is covered with a cap (12), and a locking mechanism (14) is provided between the cap (12) and the tank body (6).

9. A mobile downhole grouting device according to claim 8, characterized in that: The locking mechanism (14) includes a connecting frame (141) fixed to the tank body (6), a screw (142) passing through and screwed onto the connecting frame (141), and the lower end of the screw (142) being rotatably connected to the cover (12).

10. A mobile downhole grouting device according to claim 9, characterized in that: A handle (143) is fixedly connected to the upper end of the screw (142).

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