Large-water-hole drill rod structure

Abstract

The utility model relates to the technical field of drilling equipment, and discloses a large-water-hole drill rod structure which comprises a pair of drill rods, one end of each drill rod is sleeved with an elastic sealing ring, the large-water-hole drill rod structure further comprises a connecting assembly and a fastening assembly which are arranged on the peripheral walls of the drill rods, and the connecting assembly comprises a plurality of clamping grooves evenly formed in the peripheral walls of the drill rods. One end of the outer circumferential wall of the drill rod is connected with a fastening inner pipe in a clamped mode, and the inner circumferential wall of each fastening inner pipe is fixedly connected with a plurality of clamping blocks matched with the clamping grooves. The effect of improving the use convenience of the device is achieved, the fastening inner pipe is clamped to one end of the outer circumferential wall of the drill rod, then the fastening outer pipe is clamped to the outer circumferential wall of the fastening inner pipe, and then the fastening bolts and the fixing blocks are matched with each other, so that the pair of connecting hoops lock the pair of fastening outer pipes, and the use convenience of the device is improved. And the problems that threads of the drill rods are blocked, the drill rods are difficult to disassemble, and the use convenience of the device is inconvenient to improve are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of drilling equipment, in particular to a large water eye drill pipe structure. Background Technique

[0002] During oil and gas exploitation or pile foundation construction, drilling operations are required, and a drilling rig is needed for drilling operations. The drill pipe is a part of the drilling rig and is used to connect the surface equipment of the drilling rig and the drilling and grinding equipment or bottom hole device located at the bottom of the well. The purpose of the drill pipe is to transport the drilling mud to the drill bit and, together with the drill bit, raise, lower, or rotate the bottom hole device.

[0003] After retrieval, a Chinese patent with the publication number CN202755907U discloses a large water eye drill pipe structure, which is composed of a drill pipe body, a drill pipe male joint, and a drill pipe female joint. The end of the drill pipe male joint is provided with double shoulder external threads, and the end of the drill pipe female joint is provided with double shoulder internal threads. Both the double shoulder external threads and the double shoulder internal threads adopt a V-0.038R flat top and round bottom triangular tooth profile. The taper of both the double shoulder external threads and the double shoulder internal threads is equal and is 1:10 to 1:14, and the pitch of both the double shoulder external threads and the double shoulder internal threads is equal and is 3 to 5 teeth per inch.

[0004] This device has a larger water eye, higher torsional resistance, and lighter weight, greatly reducing the pump energy consumption during the drilling process and increasing the drilling speed.

[0005] However, this device still has the following problems. The device makes the adjacent drill pipes connected through the mutual cooperation between the double shoulder external threads provided at the end of the drill pipe male joint and the double shoulder internal threads provided at the end of the drill pipe female joint. In the actual use process, although the double shoulder threads can withstand a large torque, during the rotation of the drill pipe, it is easy to have friction heating, resulting in thread jamming and difficult disassembly, which is not convenient for improving the usability of the device. Content of the Utility Model

[0006] (1) Technical Problems to be Solved

[0007] In view of the deficiencies of the prior art, the utility model provides a large water eye drill pipe structure, which solves the problems of easy friction heating resulting in thread jamming and difficult disassembly, and is not convenient for improving the usability of the device.

[0008] (2) Technical Solutions

[0009] To achieve the above object, the utility model provides the following technical solution: A large water eye drill pipe structure includes a pair of drill pipes, and an elastic sealing ring is sleeved on one end of each drill pipe. It also includes a connection component and a fastening component arranged on the outer peripheral wall of the drill pipe;

[0010] The connecting component includes a plurality of clamping grooves evenly formed on the outer peripheral wall of the drill pipe. One end of the outer peripheral wall of the drill pipe is clamped with a fastening inner pipe. The inner peripheral wall of each fastening inner pipe is fixedly connected with a plurality of clamping blocks adapted to the clamping grooves. The outer peripheral wall of the fastening inner pipe is fixedly connected with fastening spiral strips. The outer peripheral wall of the fastening inner pipe is clamped with a fastening outer pipe. The inner peripheral wall of each fastening outer pipe is provided with a fastening spiral groove adapted to the fastening spiral strips, and the inner peripheral wall of the fastening outer pipe and the elastic sealing ring are fixedly connected by a clamping method.

[0011] Preferably, the fastening component includes a pair of connecting clamping rings fixedly connected to one end of the outer peripheral wall of the fastening outer pipe. One end of the pair of connecting clamping rings is jointly clamped with a pair of connecting clamps. The inner wall of each connecting clamp is provided with a fastening ring groove adapted to the connecting clamping ring.

[0012] Preferably, both ends of the outer wall of each connecting clamp are fixedly connected with fixing blocks. One end of each fixing block and one end of the adjacent fixing block are jointly threadedly connected with a plurality of fastening bolts.

[0013] Preferably, one end of the clamping groove and the clamping block are both arranged in an arc structure adapted to the fastening inner pipe.

[0014] Preferably, one end of the pair of elastic sealing rings is clamped with a connecting pipe, and the outer peripheral wall of the connecting pipe is in contact with the inner peripheral wall of the fastening outer pipe.

[0015] (III) Beneficial effects

[0016] 1. For the large water hole drill pipe structure, a pair of fastening inner pipes are respectively clamped at one end of the outer peripheral wall of a pair of drill pipes, and then a pair of fastening outer pipes are respectively clamped on the outer peripheral wall of the pair of fastening inner pipes. Then, through the mutual cooperation between the fastening bolts and the fixing blocks, the pair of connecting clamps lock the pair of fastening outer pipes, so that the pair of drill pipes are interconnected with the connecting pipe, which is convenient for the mutual connection and disassembly of the drill pipes, and effectively improves the convenience of using the device.

[0017] 2. For the large water hole drill pipe structure, the operation is simple and the design is ingenious. Through the mutual cooperation between the clamping blocks and the clamping grooves, the clamping stability between the fastening inner pipe and the drill pipe is improved. Then, through the mutual cooperation between the fastening spiral strips and the fastening spiral grooves, the clamping stability between the fastening outer pipe and the fastening inner pipe is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a first perspective three-dimensional structural schematic diagram of the present invention;

[0019] Figure 2 is an exploded structural schematic diagram of the present invention;

[0020] Figure 3Schematic diagram of the semi-section three-dimensional structure of some components of the present utility model;

[0021] Figure 4 Schematic diagram of the semi-section three-dimensional structure of some connecting components of the present utility model.

[0022] In the figure: 1, drill pipe; 2, elastic sealing ring; 3, connecting pipe; 4, clamping groove; 5, fastening inner pipe; 6, clamping block; 7, fastening outer pipe; 8, fastening spiral strip; 9, fastening spiral groove; 10, connecting clamping ring; 11, connecting clamp; 12, fastening ring groove; 13, fixing block; 14, fastening bolt. Specific embodiments

[0023] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present utility model.

[0024] Embodiment: As Figure 1 shown, a large water eye drill pipe structure includes a pair of drill pipes 1. The drill pipes 1 are made of composite metal materials, having the characteristics of high strength and good anti-torsion performance, improving the overall structural strength of the device. An elastic sealing ring 2 is sleeved at one end of each drill pipe 1. The elastic sealing ring 2 plays a sealing role. It also includes a connecting component and a fastening component arranged on the outer peripheral wall of the drill pipe 1.

[0025] As Figures 2 - 4 shown, in a certain embodiment, in order to increase the water eye aperture inside the device, the connecting component includes a plurality of clamping grooves 4 evenly opened on the outer peripheral wall of the drill pipe 1. A fastening inner pipe 5 is clamped at one end of the outer peripheral wall of the drill pipe 1. A plurality of clamping blocks 6 adapted to the clamping grooves 4 are fixedly connected to the inner peripheral wall of each fastening inner pipe 5. One end of the clamping groove 4 and the clamping block 6 are both arranged in an arc structure adapted to the fastening inner pipe 5. By the mutual clamping between the clamping groove 4 and the clamping block 6, the clamping stability between the fastening inner pipe 5 and the drill pipe 1 is improved. The outer peripheral walls of the fastening inner pipes 5 are fixedly connected by welding with fastening spiral strips 8. The outer peripheral walls of the fastening inner pipes 5 are clamped with fastening outer pipes 7. A fastening spiral groove 9 adapted to the fastening spiral strips 8 is opened on the inner peripheral wall of each fastening outer pipe 7. By the mutual cooperation between the fastening spiral strips 8 and the fastening spiral grooves 9, the connection stability between the fastening outer pipe 7 and the fastening inner pipe 5 is improved. The inner peripheral wall of the fastening outer pipe 7 is fixedly connected with the elastic sealing ring 2 by clamping. One end of a pair of elastic sealing rings 2 is clamped with a connecting pipe 3, and the outer peripheral wall of the connecting pipe 3 is in contact with the inner peripheral wall of the fastening outer pipe 7. The connecting pipe 3 plays a role in connecting a pair of drill pipes 1.

[0026] As Figure 1 shown in Figure 2 one embodiment, in order to improve the stability of the device, the fastening assembly includes a pair of connecting clamping rings 10 fixedly connected to one end of the outer peripheral wall of the fastening outer tube 7 by welding. One end of the pair of connecting clamping rings 10 is commonly clamped with a pair of connecting clamps 11. A fastening ring groove 12 adapted to the connecting clamping ring 10 is formed in the inner wall of each connecting clamp 11. Through the mutual cooperation between the fastening ring groove 12 and the connecting clamp 11, the pair of fastening outer tubes 7 are fixed to each other. Both ends of the outer wall of each connecting clamp 11 are fixedly connected with fixing blocks 13. One end of each fixing block 13 and one end of the adjacent fixing block 13 are commonly threadedly connected with a plurality of fastening bolts 14. Through the mutual cooperation between the fastening bolts 14 and the fixing blocks 13, the stability of the connecting clamp 11 for fixing the fastening outer tube 7 is improved.

[0027] Working principle: During use, first, a pair of elastic sealing rings 2 are respectively clamped on the inner peripheral walls of the pair of fastening outer tubes 7. Then, through the mutual cooperation between the clamping blocks 6 and the clamping grooves 4, the pair of fastening inner tubes 5 are respectively clamped on one end of the outer peripheral walls of the pair of drill pipes 1. Through the mutual cooperation between the fastening spiral strips 8 and the fastening spiral grooves 9, the pair of fastening outer tubes 7 are respectively clamped on the outer peripheral walls of the pair of fastening inner tubes 5. Then, the connecting pipe 3 is placed between the pair of elastic sealing rings 2, so that the connecting pipe 3 is clamped between the pair of elastic sealing rings 2. Then, the pair of connecting clamps 11 are clamped on one end of the pair of connecting clamping rings 10. Then, through the mutual cooperation between the fastening bolts 14 and the fixing blocks 13, the pair of connecting clamps 11 lock the pair of fastening outer tubes 7, so that the pair of drill pipes 1 and the connecting pipe 3 are communicated with each other, facilitating the mutual connection and disassembly of the drill pipes 1, effectively improving the convenience of using the device, and at the same time avoiding setting joints at the ends of the drill pipes 1 from affecting the inner diameter of the drill pipes 1, effectively improving the water eye aperture arranged inside the drill pipes 1.

[0028] In the description of the present utility model, it should also be noted that unless otherwise clearly specified and limited, the terms "arranged", "installed", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0029] Although embodiments of the present utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A large water hole drill rod structure, comprising a pair of drill rods (1), one end of each drill rod (1) being sleeved with an elastic sealing ring (2), characterized in that: It also includes a connecting assembly and a fastening assembly arranged on the outer peripheral wall of the drill rod (1); The connection assembly comprises a plurality of slots (4) uniformly arranged on the outer peripheral wall of the drill rod (1); a fastening inner tube (5) is clamped at one end of the outer peripheral wall of the drill rod (1); a plurality of clamping blocks (6) matching the slots (4) are fixedly connected to the inner peripheral wall of each of the fastening inner tubes (5); a fastening spiral strip (8) is fixedly connected to the outer peripheral wall of the fastening inner tube (5); a fastening outer tube (7) is clamped to the outer peripheral wall of the fastening inner tube (5); a fastening spiral groove (9) matching the fastening spiral strip (8) is arranged on the inner peripheral wall of each of the fastening outer tubes (7); and the inner peripheral wall of the fastening outer tube (7) is fixedly connected to the elastic sealing ring (2) by clamping.

2. A large water hole drill pipe structure according to claim 1, characterized in that: The fastening assembly comprises a pair of connecting clamps (10) fixedly connected to one end of the outer peripheral wall of the fastening outer tube (7); one end of the pair of connecting clamps (10) is commonly clamped with a pair of connecting clamps (11); and the inner wall of each connecting clamp (11) is provided with a fastening ring groove (12) adapted to the connecting clamp (10).

3. A large water hole drill pipe structure according to claim 2, characterized in that: Both ends of the outer wall of each connecting clamp (11) are fixedly connected to a fixing block (13), and one end of each fixing block (13) is threadedly connected to one end of an adjacent fixing block (13) by a plurality of fastening bolts (14).

4. A large water hole drill pipe structure according to claim 1, characterized in that: One end of the clamping groove (4) and the clamping block (6) are both arranged in an arc-shaped structure adapted to the fastening inner tube (5).

5. A large water hole drill pipe structure according to claim 1, characterized in that: One end of a pair of elastic sealing rings (2) is connected to a connecting tube (3) by clamping, and the outer peripheral wall of the connecting tube (3) is in contact with the inner peripheral wall of the fastening outer tube (7).

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