Anti-leakage device for grouting system of advanced drilling machine

Abstract

The utility model discloses an advance drilling machine grouting system anti-leakage device, and particularly relates to the technical field of anti-leakage devices, the advance drilling machine grouting system anti-leakage device comprises a grouting pipe, an air groove and a positioning ring, a grouting hole is formed in the center of the interior of the grouting pipe, the air groove is formed in the grouting pipe, a flow guide plate is arranged on the outer side of the grouting pipe, and the positioning ring is arranged in the air groove. A positioning ring is fixed to one side of the flow guide plate, an air bag is arranged on the outer side of the positioning ring, a limiting ring is arranged on one side of the air bag, a butt joint hole is formed in the limiting ring, and a first connecting table is fixed to one side of the limiting ring. According to the anti-leakage device for the advanced drilling machine grouting system, the air bag is arranged, when the anti-leakage device is used, after air is injected into the air groove, the air can enter the air bag through the connecting hole, the connecting air pipe and the air inlet, the air bag is inflated and swelled and can block a hole, so that the hole is sealed, and convenience is achieved when the anti-leakage device for the advanced drilling machine grouting system is sealed.

Description

Technical Field

[0001] The utility model relates to the technical field of anti-leakage devices, in particular to an anti-leakage device for a grouting system of an advanced drilling rig. Background Art

[0002] Advance drilling is a type of geological survey, also called detailed survey, which belongs to construction survey. When the foundation piles are dug to the bearing layer, an exploratory drilling survey is conducted to find out whether there are weak interlayers, cavities and other adverse geological effects within a range of no less than five meters below the foundation pile bearing layer. In some cases, grouting reinforcement operations need to be carried out through grouting pipes. This device is located outside the grouting pipe and is used to assist in sealing to prevent slurry from overflowing and leaking.

[0003] The anti-leakage device of the advance drilling rig grouting system is difficult to adapt to different holes during use, so it needs to be improved to make it easier to use. Utility Model Content

[0004] The utility model aims to provide a leakage prevention device for a grouting system of an advance drilling rig, so as to solve the problem that the leakage prevention device for a grouting system of an advance drilling rig proposed in the above background technology is not convenient for adapting to different holes.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a leakage prevention device for a grouting system of an advanced drilling rig, comprising a grouting pipe, an air groove and a positioning ring, a grouting hole is arranged at the central position inside the grouting pipe, an air groove is arranged inside the grouting pipe, a guide plate is arranged on the outside of the grouting pipe, a positioning ring is fixed on one side of the guide plate, an air bag is arranged on the outside of the positioning ring, a limiting ring is arranged on one side of the air bag, a docking hole is arranged inside the limiting ring, an air inlet is arranged at the bottom end of one side of the air bag, one side of the air inlet extends to the inside of the docking hole, a first connecting platform is fixed on one side of the limiting ring, a connecting air pipe is arranged on one side of the first connecting platform, a threaded ring is arranged on the outside of the connecting air pipe, a second connecting platform is arranged on the top of the grouting pipe at the bottom end of the threaded ring, a connecting hole is arranged inside the second connecting platform, and the bottom end of the connecting hole extends to the inside of the air groove.

[0006] Preferably, the cross section of the positioning ring is larger than the cross section of the grouting pipe, and the positioning ring and the grouting pipe form a sliding structure.

[0007] Preferably, a step groove is provided on the surface of the positioning ring, a protective cover is provided at the top of the step groove, an auxiliary hole is provided at the bottom of the step groove, a fixing bolt is provided inside the auxiliary hole, a bottom groove is provided at the bottom end of the fixing bolt, a connecting block is provided inside the bottom groove, the bottom end of the connecting block extends to the bottom end of the fixing bolt, a pressure plate is installed at the bottom end of the connecting block, and a friction plate is installed at the bottom end of the pressure plate.

[0008] Preferably, a plurality of the step grooves are arranged on the surface of the positioning ring, and the plurality of the step grooves are distributed in a ring shape.

[0009] Preferably, the cross-section of the step groove is larger than the cross-section of the bottom end of the protective cover, and the step groove and the protective cover form a detachable structure.

[0010] Preferably, the interior of the auxiliary hole is provided with an internal thread, the surface of the fixing bolt is provided with an external thread, and the auxiliary hole and the fixing bolt are connected via threads.

[0011] Preferably, the cross section of the bottom groove is larger than the cross section of the connecting block, and the bottom groove and the connecting block form a rotating structure.

[0012] Preferably, a mounting platform is installed at the top of the limiting ring, a miniature camera is installed inside the mounting platform, and a transparent cover is provided at the top of the mounting platform.

[0013] Compared with the prior art, the utility model has the following beneficial effects: by providing an air bag, when in use, after injecting air into the air groove, the air can enter the air bag through the connecting hole, the connecting air pipe and the air inlet, and the air bag is inflated and expanded, and can be blocked at the hole, thereby sealing the hole, and realizing the convenience of sealing the anti-leakage device of the advanced drilling rig grouting system;

[0014] By providing an auxiliary hole and a fixing bolt, the fixing bolt is tightened, and the pressure plate and the friction plate on the bottom side of the fixing bolt can be pressed on the surface of the grouting pipe, so as to assist the device in fixing. Later, when the fixing bolt is loosened, the device can be removed from the outside of the grouting pipe, realizing the convenience of disassembly and assembly of the anti-leakage device of the grouting system of the advanced drilling rig;

[0015] By providing a miniature camera which is installed inside the mounting platform and protected by a transparent cover on the top, the miniature camera can be used to assist in observing whether there is slurry leakage, thereby achieving convenience in the use of the anti-leakage device of the advance drilling rig grouting system. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a front view cross-sectional structural schematic diagram of the utility model;

[0017] Figure 2 It is a schematic diagram of the top view structure of the utility model;

[0018] Figure 3 This is a schematic diagram of the front cross-sectional structure of the connecting air pipe of the utility model;

[0019] Figure 4 This is a schematic diagram of the front cross-sectional structure of the auxiliary hole of the utility model;

[0020] Figure 5 For the utility model Figure 1 Schematic diagram of the local enlarged structure at point A in the middle.

[0021] In the figure: 1. grouting pipe; 2. grouting hole; 3. air groove; 4. guide plate; 5. positioning ring; 6. air bag; 7. limit ring; 8. docking hole; 9. air inlet; 10. first connecting platform; 11. connecting air pipe; 12. threaded ring; 13. second connecting platform; 14. connecting hole; 15. step groove; 16. protective cover; 17. auxiliary hole; 18. fixing bolt; 19. bottom groove; 20. connecting block; 21. pressure plate; 22. friction plate; 23. mounting platform; 24. miniature camera; 25. transparent cover. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] See also Figure 1-5 The utility model provides an embodiment: a leakage prevention device for a grouting system of an advanced drilling rig, comprising a grouting pipe 1, an air groove 3 and a positioning ring 5, a grouting hole 2 is arranged at the central position inside the grouting pipe 1, an air groove 3 is arranged inside the grouting pipe 1, a guide plate 4 is arranged on the outside of the grouting pipe 1, a positioning ring 5 is fixed on one side of the guide plate 4, the cross section of the positioning ring 5 is larger than the cross section of the grouting pipe 1, the positioning ring 5 and the grouting pipe 1 form a sliding structure, an air bag 6 is arranged on the outside of the positioning ring 5, and a side of the air bag 6 is arranged A limiting ring 7 is provided with a docking hole 8 inside the limiting ring 7, an air inlet 9 is provided at the bottom end of one side of the airbag 6, and one side of the air inlet 9 extends to the inside of the docking hole 8, a first connecting platform 10 is fixed to one side of the limiting ring 7, a connecting air pipe 11 is provided on one side of the first connecting platform 10, a threaded ring 12 is provided on the outside of the connecting air pipe 11, a second connecting platform 13 is provided at the top of the grouting pipe 1 at the bottom end of the threaded ring 12, a connecting hole 14 is provided inside the second connecting platform 13, and the bottom end of the connecting hole 14 extends to the inside of the air groove 3;

[0024] Specifically, Figure 1 , Figure 2 and Figure 3As shown, when in use, the connecting air pipe 11 is installed and used by means of the threaded cooperation between the threaded ring 12 and the first connecting platform 10 and the second connecting platform 13, and the gas can enter the connecting air pipe 11 through the gas groove 3 and the connecting hole 14, and then enter the air bag 6 through the connecting air pipe 11, the docking hole 8 and the air inlet 9, so that the air bag 6 is inflated and expanded, and the hole can be blocked by means of the expanded air bag 6;

[0025] The surface of the positioning ring 5 is provided with a step groove 15, and a plurality of step grooves 15 are provided on the surface of the positioning ring 5, and the plurality of step grooves 15 are distributed in an annular shape. A protective cover 16 is provided at the top of the step groove 15, and the cross section of the step groove 15 is larger than the cross section of the bottom end of the protective cover 16, and the step groove 15 and the protective cover 16 constitute a detachable structure, and an auxiliary hole 17 is provided at the bottom end of the step groove 15, and a fixing bolt 18 is provided inside the auxiliary hole 17, and an internal thread is provided inside the auxiliary hole 17, and an external thread is provided on the surface of the fixing bolt 18, and the auxiliary hole 17 is connected to the fixing bolt 18 through threads, and a bottom groove 19 is provided at the bottom end of the fixing bolt 18, and a connecting block 20 is provided inside the bottom groove 19, and the bottom end of the connecting block 20 extends to the bottom end of the fixing bolt 18, and the cross section of the bottom groove 19 is larger than the cross section of the connecting block 20, and the bottom groove 19 and the connecting block 20 constitute a rotating structure, and a pressing plate 21 is installed at the bottom end of the connecting block 20, and a friction plate 22 is installed at the bottom end of the pressing plate 21;

[0026] Specifically, Figure 1 , Figure 2 and Figure 4 As shown, when in use, tighten the fixing bolt 18, and with the assistance of the bottom pressure plate 21 and the friction plate 22, the fixing installation of the positioning ring 5 can be assisted, and the fixing bolt 18 is loosened, and the positioning ring 5 can be slid along the grouting pipe 1 to adjust the position or disassemble the position;

[0027] A mounting platform 23 is installed at the top of the limiting ring 7, a micro camera 24 is installed inside the mounting platform 23, and a transparent cover plate 25 is provided at the top of the mounting platform 23;

[0028] Specifically, Figure 1 , Figure 2 and Figure 5 As shown, when in use, the micro camera 24 is located at the rear end position, and the micro camera 24 can be used to assist in observing whether there is slurry leakage here. A transparent cover plate 25 is installed above the micro camera 24 to assist in protecting the micro camera 24.

[0029] Working principle: When in use, first put the positioning ring 5 on the outside of the grouting pipe 1, then, with the help of the threaded ring 12 connecting the outside of the air pipe 11, connect it with the first connecting platform 10 and the second connecting platform 13 through threads, then tighten the fixing bolt 18 inside the auxiliary hole 17, and the pressure plate 21 and the friction plate 22 on the bottom side are pressed on the surface of the grouting pipe 1, which can assist the positioning ring 5 in fixing the position, and then insert the protective cover 16 into the step groove 15 to protect the fixing bolt 18 and prevent the fixing bolt 18 from contacting with foreign objects and causing rust damage. After that, it can be inflated with the help of the air groove 3. The gas enters the interior of the airbag 6 through the air groove 3, the connecting hole 14, the docking hole 8 and the air inlet 9. The airbag 6 is inflated and expands, and the surrounding holes are blocked. A miniature camera 24 is set at the rear position of the airbag 6, and the miniature camera 24 can be used to observe whether there is leakage of slurry during grouting.

[0030] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A leakage prevention device for a grouting system of an advanced drilling rig, comprising a grouting pipe (1), an air groove (3) and a positioning ring (5), characterized in that: A grouting hole (2) is provided at the center position inside the grouting pipe (1), an air groove (3) is provided inside the grouting pipe (1), a guide plate (4) is provided on the outside of the grouting pipe (1), a positioning ring (5) is fixed on one side of the guide plate (4), an air bag (6) is provided on the outside of the positioning ring (5), a limiting ring (7) is provided on one side of the air bag (6), a docking hole (8) is provided inside the limiting ring (7), an air inlet (9) is provided at the bottom end of one side of the air bag (6), and the air inlet (9) is provided at the bottom end of the air bag (6). One side of the air port (9) extends to the interior of the docking hole (8); a first connecting platform (10) is fixed to one side of the limiting ring (7); a connecting air pipe (11) is provided on one side of the first connecting platform (10); a threaded ring (12) is provided on the outer side of the connecting air pipe (11); a second connecting platform (13) is provided at the top of the grouting pipe (1) at the bottom end of the threaded ring (12); a connecting hole (14) is provided inside the second connecting platform (13); and the bottom end of the connecting hole (14) extends to the interior of the air groove (3).

2. The anti-leakage device of the grouting system of the advanced drilling rig according to claim 1 is characterized by: The cross section of the positioning ring (5) is larger than the cross section of the grouting pipe (1), and the positioning ring (5) and the grouting pipe (1) form a sliding structure.

3. The anti-leakage device of the advanced drilling rig grouting system according to claim 1 is characterized by: The surface of the positioning ring (5) is provided with a step groove (15), the top of the step groove (15) is provided with a protective cover (16), the bottom of the step groove (15) is provided with an auxiliary hole (17), the interior of the auxiliary hole (17) is provided with a fixing bolt (18), the bottom of the fixing bolt (18) is provided with a bottom groove (19), the interior of the bottom groove (19) is provided with a connecting block (20), the bottom end of the connecting block (20) extends to the bottom end of the fixing bolt (18), the bottom end of the connecting block (20) is installed with a pressing plate (21), and the bottom end of the pressing plate (21) is installed with a friction plate (22).

4. The anti-leakage device of the advanced drilling rig grouting system according to claim 3 is characterized by: A plurality of step grooves (15) are arranged on the surface of the positioning ring (5), and the plurality of step grooves (15) are distributed in a ring shape.

5. The anti-leakage device for the grouting system of the advanced drilling rig according to claim 3 is characterized by: The cross section of the step groove (15) is larger than the cross section of the bottom end of the protective cover (16), and the step groove (15) and the protective cover (16) form a detachable structure.

6. The anti-leakage device for the grouting system of the advanced drilling rig according to claim 3 is characterized by: The interior of the auxiliary hole (17) is provided with an internal thread, the surface of the fixing bolt (18) is provided with an external thread, and the auxiliary hole (17) and the fixing bolt (18) are connected via threads.

7. The anti-leakage device for the grouting system of the advanced drilling rig according to claim 3 is characterized by: The cross section of the bottom groove (19) is larger than the cross section of the connecting block (20), and the bottom groove (19) and the connecting block (20) form a rotating structure.

8. The anti-leakage device for the grouting system of the advanced drilling rig according to claim 1 is characterized by: A mounting platform (23) is installed at the top of the limiting ring (7), a micro camera (24) is installed inside the mounting platform (23), and a transparent cover plate (25) is provided at the top of the mounting platform (23).

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