Snakelike directional drill rod

Abstract

The utility model discloses a snakelike directional drill rod. The snakelike directional drill rod comprises a transmission rod, a butt joint mechanism, a locking disc and a locking screw. According to the drill rod, transmission is conducted through the transmission rods, the multiple transmission rods are arranged and are in butt joint through the butt joint mechanism, then the overall length of the drill rod can be adjusted according to actual use requirements, the application range is widened, and the drill rod can be adjusted through rotation of the adjusting base in the butt joint mechanism in the cavity of the transmission rod. Furthermore, the overall angle of the drill rod can be adjusted, and the drill rod does snakelike motion, so that the drill rod can be suitable for different scenes, and the application range is further widened.

Description

Technical Field

[0001] The utility model relates to a drill rod, in particular to a snake-shaped directional drill rod, belonging to the technical field of drill rods. Background Art

[0002] Drill pipe is a steel pipe with a threaded tail end, used to connect the surface equipment of the drilling rig to the drilling and grinding equipment or bottom hole device at the bottom of the well. The purpose of the drill pipe is to transport drilling mud to the drill bit and raise, lower or rotate the bottom hole device together with the drill bit. The drill pipe must be able to withstand huge internal and external pressure, twisting, bending and vibration. Drill pipe can be used many times during the oil and gas extraction and refining process.

[0003] However, most existing drill rods have various problems. For example, the drill rod disclosed in publication number CN113175304A is convenient and efficient, and can extract complete, undisturbed, and (external) contamination-free drilled samples. However, since the current drill rods are all rigid structures and can mostly only perform linear transmission, they cannot be used when facing some curved holes, thus having significant limitations. Utility Model Content

[0004] The technical solution of the present invention aims at the technical problem that the existing technical solution is too single, and provides a solution that is significantly different from the existing technology. Specifically, the purpose of the present invention is to solve the above-mentioned shortcomings in the existing technology and propose a serpentine directional drill rod.

[0005] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0006] A serpentine directional drill rod comprises a transmission rod, a docking mechanism, a locking plate and a locking screw. The docking mechanism is provided on the transmission rod. Two locking plates are provided. The two locking plates are coaxially connected to the two ends of the transmission rod through ball bearings. The ball bearings on the locking plates are axially rotatably connected to the transmission rod and cannot rotate radially. The transmission rod is provided with multiple locking plates. The locking screw is connected between the locking plates of two adjacent transmission rods.

[0007] The docking mechanism includes a docking rod, a limiting groove, an adjustment seat and a docking groove. The docking rod is coaxially fixed to one end of the transmission rod. The limiting groove is arranged on the side wall of the docking rod, and a cavity is arranged on the end of the transmission rod away from the docking rod. The adjustment seat is rotatably engaged in the cavity. The docking groove is arranged at the center of the adjustment seat. The docking rod is engaged in the docking groove, and the docking groove and the limiting groove are staggered and engaged with each other.

[0008] As a further solution of the present invention: the docking mechanism also includes a snap ring, a first snap groove, a second snap groove and a ball, the snap ring is fixed in the cavity of the transmission rod, the first snap groove is arranged on the inner wall of the cavity of the transmission rod, the second snap groove is arranged on the outer wall of the adjustment seat, a through hole is penetrated by the snap ring, the ball is arranged in the through hole of the snap ring, and the ball is located between the first snap groove and the second snap groove.

[0009] As a further solution of the present invention: the first card slot and the second card slot are arranged in a one-to-one correspondence up and down, and both the first card slot and the second card slot are arc-shaped structures.

[0010] As a further solution of the present invention: the adjustment seat is a circular structure, and a plurality of balls are provided and arranged at equal intervals around the adjustment seat.

[0011] As a further solution of the present invention: a through hole is provided on the locking disk, the locking screw is passed through the through hole of the locking disk, and the locking screw is screwed and connected to the nut.

[0012] As a further solution of the present invention: a pressure gasket is sleeved on the locking screw, and the pressure gasket is located between the nut and the locking disk.

[0013] The beneficial effects of the utility model are:

[0014] In the present invention, transmission is performed through a transmission rod, and multiple transmission rods are provided and docked through a docking mechanism, so that the overall length of the drill rod can be adjusted according to actual use requirements, thereby improving the scope of application, and through the rotation of the adjustment seat in the transmission rod cavity in the docking mechanism, the overall angle of the drill rod can be adjusted and perform serpentine motion, thereby making the drill rod suitable for different scenarios, further improving the scope of application. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the connection structure of two adjacent transmission rods of the utility model;

[0017] Figure 3 This is a schematic diagram of the docking mechanism structure of the utility model;

[0018] Figure 4 This is a schematic diagram of the locking screw structure of the utility model.

[0019] In the figure: 1. Transmission rod, 2. Docking mechanism, 21. Docking rod, 22. Limiting groove, 23. Adjusting seat, 24. Docking groove, 25. Snap ring, 26. First slot, 27. Second slot, 28. Ball, 3. Locking plate, 4. Locking screw, 5. Pressure washer, 6. Nut. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0021] Example 1, as Figures 1 to 4 As shown, a serpentine directional drill rod includes a transmission rod 1, a docking mechanism 2, a locking plate 3 and a locking screw 4. The docking mechanism 2 is provided on the transmission rod 1. Two locking plates 3 are provided, and the two locking plates 3 are coaxially connected to the two ends of the transmission rod 1 through ball bearings. The ball bearings on the locking plates 3 are connected to the transmission rod 1 in the axial direction and cannot rotate radially. The transmission rod 1 is provided with multiple locking screws 4. The locking screw 4 is connected between the locking plates 3 of two adjacent transmission rods 1.

[0022] The docking mechanism 2 includes a docking rod 21, a limiting groove 22, an adjustment seat 23 and a docking groove 24. The docking rod 21 is coaxially fixed to one end of the transmission rod 1. The limiting groove 22 is provided on the side wall of the docking rod 21. A cavity is provided on the end of the transmission rod 1 away from the docking rod 21. The adjustment seat 23 is rotatably engaged in the cavity. The docking groove 24 is provided at the center of the adjustment seat 23. The docking rod 21 is engaged in the docking groove 24, and the docking groove 24 and the limiting groove 22 are staggered and engaged with each other.

[0023] The docking mechanism 2 also includes a snap ring 25, a first snap groove 26, a second snap groove 27 and a ball 28. The snap ring 25 is fixed in the cavity of the transmission rod 1. The first snap groove 26 is arranged on the inner wall of the cavity of the transmission rod 1. The second snap groove 27 is arranged on the outer wall of the adjustment seat 23. A through hole is provided on the snap ring 25. The ball 28 is arranged in the through hole of the snap ring 25, and the ball 28 is located between the first snap groove 26 and the second snap groove 27.

[0024] In the present invention, transmission is performed through a transmission rod 1, and multiple transmission rods 1 are provided, and docked through a docking mechanism 2, so that the overall length of the drill rod as a whole can be adjusted according to actual use requirements, thereby improving the scope of application, and through the rotation of the adjustment seat 23 in the docking mechanism 2 in the cavity of the transmission rod 1, the angle of the drill rod as a whole can be adjusted and perform a serpentine motion, thereby enabling the drill rod to be suitable for different scenarios, further improving the scope of application.

[0025] Example 2, as Figures 1 to 4 As shown, in addition to all the technical features of the first embodiment, this embodiment also includes:

[0026] The first card slot 26 and the second card slot 27 are arranged one by one in the upper and lower sides, and both the first card slot 26 and the second card slot 27 are arc-shaped structures, so that the ball 28 can slide in the card slot.

[0027] The adjustment seat 23 is a circular structure, and a plurality of balls 28 are provided and arranged equidistantly around the adjustment seat 23. By providing a plurality of balls 28, the adjustment seat 23 can be evenly stressed.

[0028] A through hole is provided on the locking disk 3, and the locking screw 4 is provided in the through hole of the locking disk 3 and is screwed onto the nut 6. The locking screw 4 enables two adjacent transmission rods 1 to be quickly disassembled and assembled.

[0029] A pressure washer 5 is sleeved on the locking screw 4. The pressure washer (5) is located between the nut 6 and the locking plate 3. The pressure washer 5 squeezes the nut 6 to prevent the nut 6 from loosening.

[0030] When using the drill rod, first, the docking rod 21 on one of the transmission rods 1 is inserted into the docking groove 24 of the adjusting seat 23 on the other transmission rod 1, and then the locking screw 4 is passed between the two adjacent locking disks 3, and then the pressure gasket 5 is put on the locking screw 4, and the nut 6 is screwed and locked on the locking screw 4, and abutted against the pressure gasket 5, and then the two adjacent transmission rods 1 are connected and locked. Multiple transmission rods 1 can be combined in this way. When in use, the adjusting seat 23 slides in the internal cavity of the transmission rod 1, so that the drill rod as a whole can perform serpentine motion.

[0031] It will be apparent 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 characteristics of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be encompassed within the present invention. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

[0032] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A serpentine directional drill rod, comprising a transmission rod (1), a docking mechanism (2), a locking plate (3) and a locking screw (4), characterized in that: The docking mechanism (2) is provided on the transmission rod (1), two locking discs (3) are provided, and the two locking discs (3) are coaxially connected to the two ends of the transmission rod (1) through ball bearings, and the ball bearings on the locking discs (3) are connected to the transmission rod (1) in an axial rotational manner and are non-rotatable in a radial direction, and the transmission rod (1) is provided with a plurality of locking screws (4) connected between the locking discs (3) of two adjacent transmission rods (1); The docking mechanism (2) comprises a docking rod (21), a limiting groove (22), an adjusting seat (23) and a docking groove (24); the docking rod (21) is coaxially fixed to one end of the transmission rod (1); the limiting groove (22) is arranged on the side wall of the docking rod (21); a cavity is arranged on the end of the transmission rod (1) away from the docking rod (21); the adjusting seat (23) is rotatably engaged in the cavity; the docking groove (24) is arranged at the center of the adjusting seat (23); the docking rod (21) is engaged in the docking groove (24), and the docking groove (24) and the limiting groove (22) are mutually staggered and engaged.

2. The serpentine directional drill rod according to claim 1, characterized in that: The docking mechanism (2) further comprises a snap ring (25), a first snap groove (26), a second snap groove (27) and a ball (28); the snap ring (25) is fixed in the cavity of the transmission rod (1); the first snap groove (26) is arranged on the inner wall of the cavity of the transmission rod (1); the second snap groove (27) is arranged on the outer wall of the adjustment seat (23); a through hole is provided through the snap ring (25); the ball (28) is arranged in the through hole of the snap ring (25), and the ball (28) is located between the first snap groove (26) and the second snap groove (27).

3. The serpentine directional drill rod according to claim 2, characterized in that: The first card slot (26) and the second card slot (27) are arranged in a one-to-one correspondence, and both the first card slot (26) and the second card slot (27) are arc-shaped structures.

4. The serpentine directional drill rod according to claim 2, characterized in that: The adjustment seat (23) is a circular structure, and a plurality of balls (28) are provided and arranged at equal intervals around the adjustment seat (23).

5. The serpentine directional drill rod according to claim 1, characterized in that: A through hole is provided through the locking disk (3), the locking screw (4) is passed through the through hole of the locking disk (3), and the locking screw (4) is screwed onto the nut (6).

6. The serpentine directional drill rod according to claim 5, characterized in that: A pressure washer (5) is sleeved on the locking screw (4), and the pressure washer (5) is located between the nut (6) and the locking disk (3).

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