Drill rod clamping prevention structure for geological drilling

Abstract

The utility model discloses a geological drilling anti-jamming drill rod structure, and particularly relates to the technical field of drill rods, the geological drilling anti-jamming drill rod structure comprises a first drill rod body and a second drill rod body, a connecting ring is arranged between the first drill rod body and the second drill rod body, and the bottom end of the first drill rod body and the top end of the second drill rod body are integrally connected with inserting pipes; inserting grooves are formed in the top and the bottom of the inner wall of the connecting ring; and the blade end of each crushing cutter is in a sawtooth shape. According to the utility model, the plurality of crushing cutters are used for crushing large broken stones suspended in a drill hole, so that the situations that the large broken stones block the drill and continuously abrade the outer end surface of the drill rod in the drill lifting process are effectively avoided, the service life of the drill rod is prolonged, and the first drill rod body and the second drill rod body are fixedly connected together through the limiting assembly, so that the service life of the drill rod is prolonged. The first drill rod body and the second drill rod body are connected conveniently, and the situation that disassembly is difficult due to the fact that threaded connection is too tight can be avoided.

Description

Technical Field

[0001] This utility model relates to the field of drill pipe technology, specifically to a geological drilling anti-jamming drill pipe structure. Background Technology

[0002] During geological and hydrogeological drilling, gravel is often generated in the borehole. The gravel will be suspended above the drill bit with the mud. When the gravel is large, it cannot flow out of the hole with the mud and will remain suspended inside the hole.

[0003] Currently, most drill rods used in geological drilling are smooth-surfaced. When the drill rod is being pulled up, larger rocks in the borehole can damage the outer end face of the drill rod and easily cause the drill to get stuck, which will affect the service life of the drill rod. Utility Model Content

[0004] The purpose of this invention is to provide a geological drilling anti-jamming drill rod structure to address the aforementioned shortcomings in the technology.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a geological drilling anti-sticking drill rod structure, comprising:

[0006] A first drill rod body and a second drill rod body are provided, and a connecting ring is provided between the first drill rod body and the second drill rod body. A plug tube is integrally connected to the bottom end of the first drill rod body and the top end of the second drill rod body. A plug groove is provided at the top and bottom of the inner wall of the connecting ring. The two plug tubes are respectively inserted into the two plug grooves. A limiting component is provided at the inner end of the two plug tubes.

[0007] Multiple crushing blades are evenly fixed to the outer end of the connecting ring, and the cutting edges of the crushing blades are serrated.

[0008] Preferably, the limiting component includes two movable plates disposed inside the connecting ring, two limiting plates fixedly disposed on the outer sides of the two movable plates, two first limiting holes opened on the two insertion tubes, two second limiting holes opened on the inner walls of the two insertion slots, and one end of each of the four limiting plates passes through the four first limiting holes and extends into the four second limiting holes respectively, so as to limit and fix the two insertion tubes inside the two insertion slots.

[0009] Preferably, the connecting ring is provided with a bidirectional lead screw, the two ends of which pass through the middle of the two movable plates and are rotatably connected to the inner wall of the connecting ring. The bidirectional lead screw is threaded to both movable plates and the threads are in opposite directions, which facilitates the adjustment of the positions of the two movable plates and the four limiting plates.

[0010] Preferably, a rotating groove is provided on one side of the outer end of the connecting ring, the rotating groove is located between two of the crushing blades, one end of the bidirectional lead screw extends into the interior of the rotating groove, a rotating block is rotatably connected inside the rotating groove, one end of the bidirectional lead screw is fixedly connected to the rotating block, and a cross groove is provided on the outer side of the rotating block to facilitate the rotation of the bidirectional lead screw.

[0011] Preferably, two guide rods are fixedly provided inside the connecting ring, with each end of the two guide rods passing through two movable plates. The two guide rods are respectively located on the front and rear sides of the bidirectional lead screw to facilitate the guidance of the two movable plates.

[0012] Preferably, two positioning rods are fixedly provided at the bottom end of the insertion pipe at the bottom end of the first drill pipe body and the top end of the insertion pipe at the top end of the second drill pipe body. Two positioning slots are opened at the bottom end of the upper insertion slot and the top end of the lower insertion slot. The four positioning rods are respectively located in the four positioning slots to facilitate the positioning of the two insertion pipes.

[0013] The technical effects and advantages provided by this utility model in the above technical solution are as follows:

[0014] Multiple crushing blades break up large pieces of rock suspended inside the borehole, effectively preventing large pieces of rock from getting stuck in the drill bit and causing continuous wear on the outer end face of the drill rod during the drilling process, thus extending the service life of the drill rod. The limiting component connects and fixes the first drill rod body and the second drill rod body together, making the connection between the first drill rod body and the second drill rod body more convenient and avoiding the situation where the threaded connection is too tight, which would make disassembly difficult. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the overall exploded structure of this utility model;

[0018] Figure 3 This is a schematic diagram of the overall three-dimensional sectional structure of this utility model;

[0019] Figure 4 This is a three-dimensional structural diagram of the first drill rod body of this utility model;

[0020] Figure 5This is a three-dimensional structural diagram of the second drill rod body of this utility model;

[0021] Figure 6 This is a three-dimensional sectional view of the connecting ring of this utility model. Figure 1 ;

[0022] Figure 7 This is a three-dimensional sectional view of the connecting ring of this utility model. Figure 2 ;

[0023] Figure 8 This is a three-dimensional sectional view of the connecting ring of this utility model. Figure 3 .

[0024] Explanation of reference numerals in the attached figures:

[0025] 1. First drill rod body; 2. Second drill rod body; 3. Connecting ring; 4. Insertion pipe; 5. Insertion groove; 6. Crushing tool; 7. Movable plate; 8. Limiting plate; 9. First limiting hole; 10. Second limiting hole; 11. Bidirectional lead screw; 12. Rotating groove; 13. Rotating block; 14. Cross groove; 15. Guide rod; 16. Positioning rod; 17. Positioning groove. Detailed Implementation

[0026] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0027] This utility model provides, for example Figures 1 to 8 The geological drilling anti-sticking drill pipe structure shown includes:

[0028] A first drill rod body 1 and a second drill rod body 2 are provided, and a connecting ring 3 is provided between the first drill rod body 1 and the second drill rod body 2. The bottom end of the first drill rod body 1 and the top end of the second drill rod body 2 are integrally connected with a plug tube 4. The top and bottom of the inner wall of the connecting ring 3 are provided with plug grooves 5. The two plug tubes 4 are respectively inserted into the two plug grooves 5. The bottom end of the plug tube 4 at the bottom end of the first drill rod body 1 and the top end of the plug tube 4 at the top end of the second drill rod body 2 are both fixedly provided with two positioning rods 16. The bottom end of the upper plug groove 5 and the top end of the lower plug groove 5 are both provided with two positioning grooves 17. The four positioning rods 16 are respectively provided in the four positioning grooves 17. The inner ends of the two plug tubes 4 are provided with limiting components.

[0029] Multiple crushing blades 6 are evenly fixed on the outer end of the connecting ring 3, and the cutting edges of the crushing blades 6 are serrated.

[0030] The limiting assembly includes two movable plates 7 located inside the connecting ring 3. Two limiting plates 8 are fixedly mounted on the outer sides of each movable plate 7. Two first limiting holes 9 are formed on each of the two insertion pipes 4, and two second limiting holes 10 are formed on the inner walls of each of the two insertion slots 5. One end of each of the four limiting plates 8 passes through the four first limiting holes 9 and extends into the four second limiting holes 10. A bidirectional lead screw 11 is located inside the connecting ring 3. Both ends of the bidirectional lead screw 11 pass through the middle of the two movable plates 7 and are rotatably connected to the inner wall of the connecting ring 3. The bidirectional lead screw 11 and the two movable plates 7 are connected to each other. All plates 7 are connected by threads with opposite thread directions. A rotating groove 12 is provided on one side of the outer end of the connecting ring 3. The rotating groove 12 is located between two of the crushing blades 6. One end of the bidirectional screw 11 extends into the rotating groove 12. A rotating block 13 is rotatably connected inside the rotating groove 12. One end of the bidirectional screw 11 is fixedly connected to the rotating block 13. A cross groove 14 is provided on the outer side of the rotating block 13. Two guide rods 15 are fixedly provided inside the connecting ring 3. The two guide rods 15 pass through the two movable plates 7 at both ends. The two guide rods 15 are respectively located on the front and rear sides of the bidirectional screw 11.

[0031] Place the connecting ring 3 between the first drill rod body 1 and the second drill rod body 2, so that the two insertion pipes 4 on the first drill rod body 1 and the second drill rod body 2 are respectively inserted into the two insertion slots 5. The positioning rod 16 on the insertion pipe 4 is inserted into the positioning slot 17 inside the insertion slot 5. This can position the insertion pipes 4 on the first drill rod body 1 and the second drill rod body 2. Use a Phillips head tool to insert into the cross slot 14, and then rotate the rotating block 13. The rotating block 13 drives the bidirectional lead screw 11 to rotate. Since the bidirectional lead screw 11 is connected to the two movable plates 7 by threads, the two movable plates 7 move away from each other as the bidirectional lead screw 11 rotates. The two movable plates 7 drive the four limiting plates 8 to move outward. The four limiting plates 8 will be inserted into the four first limiting holes 9 and the second limiting holes 10 respectively. In this way, the first drill rod body 1 and the second drill rod body 2 can be connected and fixed to the top and bottom of the connecting ring 3 respectively. Figure 1 and Figure 3 As shown, when the drill rod is being lifted, the power equipment drives the drill rod to rotate. At this time, multiple crushing cutters 6 at the outer end of the connecting ring 3 will rotate as well. The crushing cutters 6 will crush the larger stones suspended inside the borehole, thus preventing large stones from getting stuck in the drill.

[0032] This invention uses multiple crushing blades 6 to break up large pieces of rock suspended inside the borehole, effectively preventing large pieces of rock from getting stuck in the drill bit and causing continuous wear on the outer end face of the drill rod during the drilling process, thus extending the service life of the drill rod. The first drill rod body 1 and the second drill rod body 2 are connected and fixed together by a limiting component, making the connection between the two bodies convenient and avoiding the difficulty of disassembly due to excessive tightness in threaded connections. This embodiment specifically solves the problem in the prior art that most drill rods used in geological drilling have smooth surfaces, and that large pieces of rock inside the borehole can damage the outer end face of the drill rod and easily cause it to get stuck during drilling, thus affecting the service life of the drill rod.

[0033] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A geological drilling anti-sticking rod structure, characterized in that, The utility model relates to a drilling rod body (1) and second drilling rod body (2) are equipped with connecting ring (3) between first drilling rod body (1) and second drilling rod body (2), and the bottom end of first drilling rod body (1) and the top end of second drilling rod body (2) are integrally connected with the spigot pipe (4), the top and bottom of the inner wall of connecting ring (3) are provided with spigot groove (5), two spigot pipes (4) are inserted in two spigot grooves (5) respectively, and the inner end of two spigot pipes (4) is equipped with limiting component. A plurality of crushing cutters (6) are evenly fixed to the outer end of the connecting ring (3), and the blade end of the crushing cutter (6) is serrated. The limiting component includes two movable plates (7) arranged inside the connecting ring (3), two limiting plates (8) are fixedly arranged on the outer side of each movable plate (7), two first limiting holes (9) are formed in each spigot pipe (4), two second limiting holes (10) are formed in the inner wall of each spigot groove (5), and one end of each of the four limiting plates (8) passes through the inside of the four first limiting holes (9) and extends into the four second limiting holes (10) respectively.

2. A stuck pipe prevention structure for geological drilling according to claim 1, characterized in that: The connecting ring (3) is provided with a bidirectional screw rod (11) inside, the two ends of the bidirectional screw rod (11) pass through the middle of the two movable plates (7) and are rotatably connected with the inner wall of the connecting ring (3), and the bidirectional screw rod (11) is connected with the two movable plates (7) through threads and the thread directions are opposite.

3. A geological drilling anti-sticking rod structure according to claim 2, characterized in that: A rotating groove (12) is formed on one side of the outer end of the connecting ring (3), the rotating groove (12) is arranged between the two crushing cutters (6), one end of the bidirectional screw rod (11) extends into the rotating groove (12), a rotating block (13) is rotatably connected inside the rotating groove (12), one end of the bidirectional screw rod (11) is fixedly connected with the rotating block (13), and a cross groove (14) is formed on the outer side of the rotating block (13).

4. A geological drilling anti-sticking rod structure according to claim 3, characterized in that: Two guide rods (15) are fixedly arranged inside the connecting ring (3), the two ends of each guide rod (15) pass through the two movable plates (7), and the two guide rods (15) are arranged on the front and back sides of the bidirectional screw rod (11).

5. A geological drilling anti-sticking rod structure according to claim 3, characterized in that: The bottom end of the spigot pipe (4) at the bottom end of the first drilling rod body (1) and the top end of the spigot pipe (4) at the top end of the second drilling rod body (2) are fixedly provided with two positioning rods (16), two positioning grooves (17) are formed in the bottom end of the spigot groove (5) inside the upper part and the top end of the spigot groove (5) inside the lower part, and the four positioning rods (16) are arranged in the four positioning grooves (17) respectively.

6. A geological drilling anti-sticking rod structure according to claim 1, characterized in that: ​

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