Quick plugging device for drilling

Abstract

The invention discloses a quick plugging device for drilling, and relates to the technical field of drilling plugging. The device comprises a plugging rod, a drill bit is fixedly mounted at the top of the plugging rod, a rotating shaft is rotationally connected to the center of the interior of the plugging rod in a limiting mode, threaded columns are fixedly mounted on the upper side and the lower side of the rotating shaft, and plugging assemblies are arranged between the threaded columns and the outer side of the plugging rod; and a motor is fixedly installed below the rotating shaft in the plugging rod, the motor is in transmission connection with the rotating shaft, the plugging assembly comprises inner side gear rings, and the inner side gear rings are symmetrically connected to the upper side and the lower side in the plugging rod in a limiting and sliding mode. In the grouting process, the plugging material does not enter the hole, so that subsequent re-drilling is not needed, more convenience and rapidness are achieved, meanwhile, abrasion to the drill bit is reduced, more comprehensive plugging can be conducted, meanwhile, the phenomenon that the solidified plugging material in the crack at the leakage position is prone to disengagement is avoided, and the plugging effect is improved.

Description

Technical Field

[0001] The invention relates to the technical field of drilling plugging, and in particular to a rapid drilling plugging device. Background Art

[0002] The rapid sealing device for drilling holes is a device used to quickly seal cracks or leaks in the hole wall during the drilling process. It is suitable for fields such as coal mining and rock static crushing technology. It is also suitable for the sealing needs of various drilling holes such as gas extraction holes, water prevention holes, and pressure measuring holes. In order to ensure the rapidity and long-term sealing, grouting can be used for sealing, and the grouting solidification of the sealing material is used to achieve the sealing of the leakage in the hole wall.

[0003] However, the existing rapid plugging device for drilling still has the following defects during use:

[0004] 1. The grouting method of the existing rapid plugging device is to inject the plugging material into the leaking part of the drill hole through the hollow design of the drill rod, but the drilled hole will also be solidified and sealed again. Therefore, it is necessary to drill downward again after the plugging material solidifies, and resume the downward drilling after passing through the plugging material, but this will slow down the progress of drilling and increase the wear of the drill bit.

[0005] 2. During the grouting process, the existing rapid plugging device uses the pressure during grouting to make the plugging material enter the cracks at the leaking location. No comprehensive grouting and sealing of the leaking area is performed. After the drill bit is re-drilled with the same hole diameter to penetrate the solidified plugging material, the solidified plugging material in the cracks at the leaking location is easily detached, so that the plugging effect needs to be improved. Summary of the invention

[0006] The purpose of the present invention is to solve the problem that the above-mentioned existing rapid plugging device will also grout the drilled holes, so it is necessary to drill downward again after the plugging material solidifies, which slows down the drilling progress and increases the wear of the drill bit. In addition, the leakage area is not fully grouted and sealed, and the plugging effect needs to be improved. The present invention provides a rapid plugging device for drilling.

[0007] In order to achieve the above-mentioned purpose, the present invention specifically adopts the following technical solutions:

[0008] A rapid plugging device for drilling comprises a plugging rod, a drill bit is fixedly mounted on the top of the plugging rod, a rotating shaft is connected to the center of the plugging rod for limited rotation, threaded columns are fixedly mounted on the upper and lower sides of the rotating shaft, and a plugging assembly is arranged between the threaded column and the outer side of the plugging rod.

[0009] Furthermore, a motor is fixedly installed below the internal rotating shaft of the blocking rod, and the motor is transmission-connected to the rotating shaft for driving the rotating shaft to rotate.

[0010] Furthermore, the blocking component includes an inner gear ring, which is symmetrically and slidingly connected to the upper and lower sides of the blocking rod, and the inner gear rings are wrapped around the outer side of the rotating shaft. The outer side of the inner gear ring is evenly connected to the first transmission rod for limited rotation, and the adjacent sides of the first transmission rod on the upper and lower sides are both limitedly hinged with connecting columns, a cover is fixedly connected between the connecting columns, and an extrusion component is arranged between the connecting columns and the outer side of the rotating shaft.

[0011] Furthermore, the first transmission rod is symmetrically arranged up and down, and after one end of the first transmission rod is hinged to the inner gear rings on the upper and lower sides, the other end is tilted toward the adjacent side and then hinged to the upper and lower ends of the connecting column. Therefore, when the inner gear rings on the upper and lower sides move toward or away from each other, the first transmission rod can push the connecting column to expand outward or contract inward.

[0012] Furthermore, the cover is made of a flexible plastic material, so that the cover can be bent during the contraction of the connecting column.

[0013] Furthermore, the extrusion assembly includes an extrusion column, the internal limiting sliding connection of the connecting column is connected to the extrusion column, the inner end of the extrusion column is fixedly installed with a connecting rod, the inner end of the connecting rod extends inward to the inner side of the connecting column, the inner end of the connecting rod is fixedly installed with a mounting frame, the upper and lower sides of the blocking rod are symmetrically limited and slidably connected with outer gear rings, the outer gear rings are wrapped around the outer side of the rotating shaft, and the outer gear rings are located on the upper and lower sides of the inner gear ring, and a second transmission rod is transmission-connected between the outer sides of the outer gear rings on the upper and lower sides and the upper and lower sides of the mounting frame.

[0014] Furthermore, the extrusion column extends outward to the outside of the connecting column, and the outside of the extrusion column is tapered, so that during the rotation of the extrusion column, the soil at the inner wall of the borehole can be squeezed and pushed outward.

[0015] Furthermore, one end of the second transmission rod is hinged to the outer side of the outer gear ring, and the other end passes through the middle of the first transmission rod, and is hinged to the upper and lower sides of the installation frame after tilting toward the adjacent side. Therefore, when the outer gear rings on the upper and lower sides move toward or away from each other, the second transmission rod can push the installation frame to expand outward or contract inward.

[0016] Furthermore, the inner gear ring and the outer gear ring are symmetrically wrapped around the outer sides of the upper and lower sides of the rotating shaft, the threads of the threaded columns on the upper and lower sides are opposite, and bevels are provided on the upper and lower sides of the threaded column, and the inner gear ring and the outer gear ring can be threadedly connected to the threaded column from the adjacent side and the outside of the threaded column respectively. Therefore, when the inner gear ring and the outer gear ring are threadedly connected to the threaded column, the rotating shaft drives the rotation of the threaded column, which can drive the inner gear ring and the outer gear ring on the upper and lower sides to move toward or away from each other.

[0017] Furthermore, a pouring pipe is fixedly connected to the inner side of the cover, the opening of the pouring pipe extends outward to the outside of the cover, and one end of the bottom of the pouring pipe can be connected to a sealing material delivery pipe, so that after the cover expands outward, the sealing material can be injected toward the outside of the cover through the pouring pipe.

[0018] The beneficial effects of the present invention are as follows:

[0019] 1. The present invention, through the design of the plugging component, utilizes the effect of the threaded column on the rotating shaft in the plugging rod. After the plugging component reaches the leakage position in the hole, it can drive the connecting column and the cover to expand outward, and then adhere to the inner wall of the hole, and then perform grouting and plugging from the cover to the outside through the pouring pipe, so that the plugging material will not enter the hole. Therefore, there is no need for subsequent re-drilling, which is more convenient and quick, and also reduces the wear on the drill bit.

[0020] 2. The present invention, through the design of the extrusion component in the sealing component, utilizes the effect of the threaded column on the rotating shaft in the sealing rod. After the connecting column and the cover are attached to the inner wall of the hole, the sealing rod can be rotated to extrude and extend the leakage part of the inner wall of the hole outward, so as to form a surrounding space extending outward for grouting, thereby enabling more comprehensive sealing. At the same time, it also avoids the phenomenon that the solidified sealing material in the crack of the leakage part is easy to separate, thereby improving the sealing effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0022] Figure 2 It is a three-dimensional structural assembly diagram of the present invention;

[0023] Figure 3 It is a schematic diagram of the three-dimensional structure of the blocking rod and the blocking assembly of the present invention;

[0024] Figure 4 It is a schematic diagram of a partially cutaway three-dimensional structure of a blocking rod and a blocking assembly of the present invention;

[0025] Figure 5 It is a schematic diagram of the three-dimensional structure of the rotating shaft and the blocking component of the present invention;

[0026] Figure 6It is a schematic diagram of a partially cutaway three-dimensional structure of a rotating shaft and a plugging assembly of the present invention;

[0027] Figure 7 The present invention Figure 6 A magnified view of the structure at center;

[0028] Figure 8 It is a schematic diagram of the three-dimensional structure of the rotating shaft, the inner gear ring and the outer gear ring of the present invention;

[0029] Fig. 9 The three-dimensional structure of the plugging component of the present invention is shown in FIG. Figure 1 ;

[0030] Fig.10 The three-dimensional structure of the plugging component of the present invention is shown in FIG. Figure 2 .

[0031] Figure numerals: 1. Sealing rod; 2. Drill bit; 3. Rotating shaft; 4. Threaded column; 5. Sealing assembly; 51. Inner gear ring; 52. First transmission rod; 53. Connecting column; 54. Cover; 55. Extrusion assembly; 551. Extrusion column; 552. Connecting rod; 553. Mounting frame; 554. Outer gear ring; 555. Second transmission rod; 6. Pouring pipe. DETAILED DESCRIPTION

[0032] To make the purpose, technical solution and advantages of the embodiments of the present invention more clear, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0033] A quick plugging device for drilling according to a preferred embodiment of the present invention will be described in detail below. Figure 1-Figure 4 As shown, a rapid plugging device for drilling comprises a plugging rod 1, a drill bit 2 is fixedly mounted on the top of the plugging rod 1, a rotating shaft 3 is connected to the center of the plugging rod 1 for limited rotation, a motor is fixedly mounted below the rotating shaft 3 inside the plugging rod 1, and the motor is transmission-connected to the rotating shaft 3 for driving the rotating shaft 3 to rotate.

[0034] Threaded columns 4 are fixedly installed on the upper and lower sides of the rotating shaft 3 , and a blocking component 5 is arranged between the threaded column 4 and the outer side of the blocking rod 1 .

[0035] Furthermore, if Figure 4-Figure 7As shown, the blocking assembly 5 includes an inner gear ring 51, and the inner gear ring 51 is symmetrically and slidingly connected to the upper and lower sides of the blocking rod 1, and the inner gear ring 51 is wrapped around the outer side of the rotating shaft 3, and the outer side of the inner gear ring 51 is evenly and rotationally connected to the first transmission rod 52, and the adjacent sides of the first transmission rod 52 on the upper and lower sides are both limited and hinged with a connecting column 53, the first transmission rod 52 is symmetrically arranged up and down, and after one end of the first transmission rod 52 is hinged to the inner gear rings 51 on the upper and lower sides, the other end is tilted to the adjacent side and then hinged to the upper and lower ends of the connecting column 53, so when the inner gear rings 51 on the upper and lower sides move toward or away from each other, the first transmission rod 52 can push the connecting column 53 to expand outward or contract inward.

[0036] A cover 54 is fixedly connected between the connecting posts 53 . The cover 54 is made of a flexible plastic material so that the cover 54 can be bent during the contraction of the connecting posts 53 .

[0037] Furthermore, if Figure 5-Figure 10 As shown, an extrusion assembly 55 is arranged between the connecting column 53 and the outer side of the rotating shaft 3, and the extrusion assembly 55 includes an extrusion column 551. The internal limiting sliding connection of the connecting column 53 is connected with the extrusion column 551, and the extrusion column 551 extends outward to the outer side of the connecting column 53, and the outer side of the extrusion column 551 is conical, so that during the rotation of the extrusion column 551, the soil at the inner wall of the borehole can be squeezed outward.

[0038] A connecting rod 552 is fixedly installed on the inner end of the extrusion column 551, and the inner end of the connecting rod 552 extends inwardly to the inner side of the connecting column 53. A mounting frame 553 is fixedly installed on the inner end of the connecting rod 552. The outer gear rings 554 are symmetrically limited and slidably connected to the upper and lower sides of the sealing rod 1. The outer gear rings 554 are wrapped around the outer side of the rotating shaft 3, and the outer gear rings 554 are located on the upper and lower sides of the inner gear ring 51. A second transmission rod 555 is transmission-connected between the outer sides of the upper and lower outer gear rings 554 and the upper and lower sides of the mounting frame 553. One end of the second transmission rod 555 is hinged to the outer side of the outer gear ring 554, and the other end passes through the middle of the first transmission rod 52, and is tilted toward the adjacent side and then hinged to the upper and lower sides of the mounting frame 553. Therefore, when the outer gear rings 554 on the upper and lower sides move toward or away from each other, the second transmission rod 555 can push the mounting frame 553 to expand outward or contract inward.

[0039] A pouring pipe 6 is fixedly connected to the inner side of the cover 54 , the opening of the pouring pipe 6 extends outward to the outside of the cover 54 , and one end of the bottom of the pouring pipe 6 can be connected to a sealing material delivery pipe, so that after the cover 54 expands outward, the sealing material can be injected toward the outside of the cover 54 through the pouring pipe 6 .

[0040] More specifically, if Figure 8As shown, the inner gear ring 51 and the outer gear ring 554 are symmetrically wrapped around the outer sides of the upper and lower sides of the rotating shaft 3, the threads of the threaded columns 4 on the upper and lower sides are opposite, and the threaded columns 4 on the upper and lower sides are provided with bevels, the inner gear ring 51 and the outer gear ring 554 can be threadedly connected to the threaded column 4 from the adjacent side and the outside of the threaded column 4 respectively, so when the inner gear ring 51 and the outer gear ring 554 are threadedly connected to the threaded column 4, the rotating shaft 3 drives the rotation of the threaded column 4, which can drive the inner gear ring 51 and the outer gear ring 554 on the upper and lower sides to move toward or away from each other.

[0041] The working principle of the present invention is:

[0042] During the drilling process of the drill rod, when leakage occurs outside the hole wall, the drill rod can be taken out, and then the drill bit 2 can be fixedly installed on the top of the sealing rod 1. Then, by utilizing the action of the drill bit 2, the sealing rod 1 can carry the sealing component 5 to the leakage point in the hole, so that the sealing component 5 is aligned with the leakage point of the hole.

[0043] After completing the alignment of the sealing component 5, start the motor to drive the rotating shaft 3 to rotate, thereby driving the threaded column 4 to rotate. Through the threaded design of the threaded columns 4 on the upper and lower sides, during the rotation of the threaded columns 4, the threaded connection between the threaded columns 4 and the inner gear rings 51 can be used to first drive the inner gear rings 51 on the upper and lower sides to move toward each other, and then the connecting column 53 is pushed to expand outward under the action of the first transmission rod 52. During the expansion of the connecting column 53, the cover 54 can also be stretched until the connecting column 53 and the cover 54 are attached to the inner wall of the leaking hole.

[0044] When the connecting column 53 expands outward, the extrusion column 551 and the mounting frame 553 are also pulled outward, and then the outer gear rings 554 on the upper and lower sides are pulled toward each other under the action of the second transmission rod 555, so that the outer gear rings 554 are spirally connected to the threaded column 4 from the outside.

[0045] Until the inner toothed ring 51 is disengaged from the threaded column 4 inwardly, and the connecting column 53 and the cover 54 are attached to the inner wall of the hole leakage, the rotating shaft 3 and the threaded column 4 are continued to be driven to rotate to make the outer toothed ring 554 continue to move toward each other. At this time, the inner toothed ring 51 no longer moves, the connecting column 53 and the cover 54 always remain attached to the inner wall of the hole leakage, and the outer toothed ring 554 will push the mounting frame 553 outward through the second transmission rod 555, and then under the action of the connecting rod 552, the extrusion column 551 is pushed to move outward relative to the connecting column 53, so that the extrusion column 551 extends to the outside of the connecting column 53, and then the blocking rod 1 is driven to rotate, thereby driving the extended extrusion column 551 to rotate, so that the extrusion column 551 squeezes and extends the soil outside the hole leakage outward, forming a surrounding space for grouting.

[0046] After the extrusion column 551 is pushed outward, the motor drives the rotating shaft 3 and the threaded column 4 to reverse, so that the outer gear ring 554 moves away from each other to pull the extrusion column 551 back into the connecting column 53. Then, the plugging material can be transported to the surrounding space extruded outward at the leaking hole through the connection between the pouring pipe 6 and the plugging material delivery pipe. At the same time, the connecting column 53 and the cover 54 can also be shielded to prevent the plugging material from entering the hole.

[0047] After the grouting is completed, the rotating shaft 3 and the threaded column 4 are continued to be driven to reverse, and the installation frame 553 and the extrusion column 551 are continued to be pulled back through the outer gear ring 554. After the extrusion column 551 contacts the inner wall of the connecting column 53, the connecting column 53 can be pulled inward to retract, and then the inner gear ring 51 is driven to move away through the first transmission rod 52, so that the inner gear ring 51 is threadedly connected to the threaded column 4 from the inside again, and then the threaded column 4 continues to reverse, the outer gear ring 554 is disengaged from the threaded column 4, and the inner gear ring 51 continues to move away, so that the first transmission rod 52 drives the connecting column 53 to retract and disengage from the inner wall of the hole, and then the blocking rod 1 can be taken out after the blocking is completed, and the drill rod can be reinserted to continue drilling.

[0048] It should be noted that when facing soft soil, the sealing rod 1 can be used directly as a drill rod. When a leak occurs during drilling, there is no need to remove it, and the sealing operation can be performed directly through the sealing rod 1. At the same time, after the sealing is completed, the sealing rod 1 can also be used to continue drilling, which is convenient and quick.

[0049] The above description of the disclosed embodiments enables one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A rapid plugging device for drilling, comprising a plugging rod (1), characterized in that: A drill bit (2) is fixedly mounted on the top of the blocking rod (1); a rotating shaft (3) is connected to the center of the blocking rod (1) for limited rotation; threaded columns (4) are fixedly mounted on the upper and lower sides of the rotating shaft (3); and a blocking assembly (5) is provided between the threaded column (4) and the outer side of the blocking rod (1).

2. The rapid plugging device for drilling according to claim 1, characterized in that: A motor is fixedly mounted below the internal rotating shaft (3) of the blocking rod (1), and the motor is in transmission connection with the rotating shaft (3).

3. The rapid plugging device for drilling according to claim 1, characterized in that: The blocking component (5) comprises: An inner toothed ring (51), wherein the inner toothed rings (51) are symmetrically limited and slidably connected to the upper and lower sides of the blocking rod (1), and the inner toothed rings (51) are wrapped around the outer side of the rotating shaft (3); A first transmission rod (52), the outer side of the inner gear ring (51) is evenly and rotationally connected to the first transmission rod (52); A connecting column (53), adjacent to one side of the first transmission rod (52) on both upper and lower sides, is limitedly hinged with a connecting column (53); A cover (54), wherein the cover (54) is fixedly connected between the connecting posts (53); An extrusion component (55) is provided between the connecting column (53) and the outer side of the rotating shaft (3).

4. The rapid plugging device for drilling according to claim 3, characterized in that: The first transmission rod (52) is symmetrically arranged up and down, and one end of the first transmission rod (52) is hinged to the inner gear rings (51) on the upper and lower sides, and the other end is tilted toward the adjacent side and then hinged to the upper and lower ends of the connecting column (53).

5. The rapid plugging device for drilling according to claim 3, characterized in that: The cover (54) is made of flexible plastic material.

6. The rapid plugging device for drilling according to claim 3, characterized in that: The extrusion assembly (55) comprises: An extrusion column (551), the connection column (53) is internally limited and slidably connected with the extrusion column (551); A connecting rod (552), wherein one end of the inner side of the extrusion column (551) is fixedly mounted with the connecting rod (552), and one end of the inner side of the connecting rod (552) extends inwardly to the inner side of the connecting column (53); A mounting frame (553), wherein the mounting frame (553) is fixedly mounted on one inner end of the connecting rod (552); An outer gear ring (554), the upper and lower sides of the blocking rod (1) are symmetrically limited and slidably connected with the outer gear ring (554), the outer gear ring (554) is wrapped around the outer side of the rotating shaft (3), and the outer gear ring (554) is located on the upper and lower sides of the inner gear ring (51); A second transmission rod (555) is transmission-connected between the outer sides of the outer gear ring (554) on the upper and lower sides and the upper and lower sides of the installation frame (553).

7. The rapid plugging device for drilling according to claim 6, characterized in that: The extrusion column (551) extends outward to the outside of the connecting column (53), and the outside of the extrusion column (551) is tapered.

8. The rapid plugging device for drilling according to claim 6, characterized in that: One end of the second transmission rod (555) is hinged to the outside of the outer gear ring (554), and the other end passes through the middle of the first transmission rod (52), tilts toward the adjacent side, and is hinged to the upper and lower sides of the installation frame (553).

9. The rapid plugging device for drilling according to claim 6, characterized in that: The inner toothed ring (51) and the outer toothed ring (554) are symmetrically wrapped around the outer sides of the upper and lower sides of the rotating shaft (3); the threads of the threaded columns (4) on the upper and lower sides are opposite, and the threaded columns (4) are provided with grooves on the upper and lower sides; the inner toothed ring (51) and the outer toothed ring (554) can be threadedly connected to the threaded column (4) from the adjacent side and the outer side of the threaded column (4), respectively.

10. The rapid plugging device for drilling according to any one of claims 1 to 9, characterized in that: A pouring pipe (6) is fixedly connected to the inner side of the cover (54), the opening of the pouring pipe (6) extends outward to the outer side of the cover (54), and one end of the bottom of the pouring pipe (6) can be connected to a plugging material delivery pipe.

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