High-strength coalbed methane digital directional cable drill pipe

Abstract

The present invention relates to the technical field of cable drill rods, and specifically discloses a high-strength coalbed methane digital directional cable drill rod. The technical problem to be solved by the present invention is: when the existing cable drill rod is drilling high-strength coal seams, the drill bit is easily worn and aged due to the long drilling depth, thereby reducing the service life of the drill bit. At the same time, the drill bit cannot be replaced during the drilling process, resulting in a decrease in the drilling speed, thereby affecting the working progress of the equipment. The technical solution is: it includes a drill rod housing, the inner cavity of the drill rod housing is provided with a steel branch pipe, the inner cavity of the steel branch pipe is provided with a three-wing support frame, and the inner cavity of the three-wing support frame is provided with a wire pipe. The beneficial effect of the present invention is: by providing a drilling and crushing mechanism, it is possible to achieve crushing drilling of high-strength coal seams under the action of the drilling and crushing mechanism, while reducing the wear of the drilling bit body, it can also improve the drilling efficiency of the drilling bit body and improve the drilling accuracy.

Description

Technical Field

[0001] The invention relates to the technical field of cable drill rods, in particular to a high-strength coalbed methane digital directional cable drill rod. Background Art

[0002] Cable drill pipe, also known as measurement while drilling drill pipe, is mainly used for deep hole directional drilling by kilometer-long directional drilling rigs. Directional drilling technology is one of the most advanced drilling methods in the world. It uses the natural bending law of the borehole or adopts artificial deflection tools to extend the borehole to the predetermined target according to the design requirements. It can drill to the specified position according to the pre-designed drilling trajectory. Cable drill pipe is the signal transmission device used in directional drilling and is also an important component to ensure the smooth implementation of directional drilling. Due to the harsh operating environment of the drill pipe, there are higher requirements for the quality of signal transmission and the stability of the rod performance.

[0003] At present, when drilling high-strength coal seams with cable drill rods, the drill bit is easily worn and aged due to the long drilling depth, which reduces the service life of the drill bit. At the same time, the drill bit cannot be replaced during the drilling process, resulting in a decrease in the drilling speed, which affects the working progress of the equipment. Therefore, we propose a high-strength coalbed methane digital directional cable drill rod. Summary of the Invention

[0004] The purpose of the present invention is to provide a high-strength coalbed methane digital directional cable drill pipe to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned object, the present invention provides the following technical solution: a high-strength coalbed methane digital directional cable drill pipe, comprising a drill pipe housing, an inner cavity of the drill pipe housing is provided with a steel branch pipe, an inner cavity of the steel branch pipe is provided with a three-wing support frame, an inner cavity of the three-wing support frame is provided with a wire pipe, one end of the wire pipe is threadedly connected to a female cable connector, the other end of the wire pipe is threadedly connected to a male cable connector, a copper core is provided in the inner cavity of the wire pipe, both ends of the copper core are threadedly connected to stainless steel connectors, the two stainless steel connectors are respectively provided in the inner cavities of the female cable connector and the male cable connector, the inner cavity of one of the stainless steel connectors is provided with a conductive spring, and one end of the drill pipe housing is threadedly connected to a drilling and crushing mechanism;

[0006] The drilling and crushing mechanism includes a drilling unit and a crushing unit. The drilling unit and the crushing unit are arranged at one end of the drill rod shell. The drilling unit is used for drilling coal seams. The crushing unit is used in conjunction with the drilling unit. The crushing unit is used for crushing high-strength coal seams.

[0007] Preferably, the drilling unit includes a circular tube fitting, the surface of the circular tube fitting is threadedly connected to the inner wall of one end of the drill rod housing, the end of the circular tube fitting away from the drill rod housing is fixedly connected to the drill bit housing, the end of the drill bit housing away from the circular tube fitting is fixedly connected to the punching drill bit body, the end of the punching drill bit body away from the drill bit housing is fixedly connected to a connecting cover, the end of the connecting cover away from the punching drill bit body is fixedly connected to a pre-punching drill bit, and the end of the pre-punching drill bit close to the connecting cover penetrates into the inner cavity of the drill bit housing.

[0008] Preferably, the crushing unit includes a motor, the surface of the motor is fixedly connected to the inner wall of the drill bit housing, the output end of the motor is fixedly connected to a turntable, a round tube bracket is provided on the side of the turntable away from the motor output end, the inner wall of the round tube bracket contacts the surface of the pre-drilling drill bit, the turntable is fixedly connected to a wavy guide frame on the side away from the motor output end, three guide wheels are provided on the end of the wavy guide frame away from the turntable, and a guide rod is fixedly connected to the side of the guide wheel away from the wavy guide frame, one side of the three guide rods passes through the round tube bracket and is fixedly connected to a positioning rod, one end of the positioning rod is fixedly connected to a telescopic rod, and the end of the telescopic rod is fixedly connected to the inner wall of the round tube bracket away from the positioning rod, and the end of the positioning rod away from the telescopic rod passes through the pre-drilling drill bit and is fixedly connected to the impact drill bit body.

[0009] Preferably, the surface fixing sleeve of the motor is provided with a limiting ring, and the surface of the limiting ring is fixedly connected to the inner wall of the drill housing.

[0010] Preferably, a slider is fixedly connected to the top of the turntable, a sliding groove is provided in the inner cavity of the drill housing, and the surface of the slider is slidably connected to the inner wall of the sliding groove.

[0011] Preferably, a fixing rod is fixedly connected to the surface of the circular tube bracket, and one end of the fixing rod away from the circular tube bracket is fixedly connected to the inner wall of the drill bit housing.

[0012] Preferably, one end of the positioning rod is fixedly connected to a tension spring, the tension spring is sleeved on the surface of the telescopic rod, and the end of the tension spring away from the positioning rod is fixedly connected to the inner wall of the round tube bracket.

[0013] Preferably, the inner cavity of the drill rod housing is provided with two retaining springs, and support retaining rings are provided on opposite sides of the two retaining springs, and the surfaces of the two support retaining rings are in contact with the inner wall of the drill rod housing.

[0014] Preferably, the three-wing support frame, the wire tube, the female cable end connector and the male cable end connector are all made of plastic, and the surfaces of the female cable end connector and the male cable end connector are in contact with the inner wall of the support retaining ring.

[0015] Preferably, two sealing rings are provided on the surface of the male end connector of the cable, and the material of the two sealing rings is rubber.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] The present invention provides a drilling unit, under the action of which the coal seam is pre-drilled, thereby avoiding damage to the drilling bit body during drilling, reducing wear of the drilling bit body, extending the service life of the drilling bit body and improving drilling accuracy, thereby improving the working efficiency of the cable drill rod.

[0018] The present invention provides a crushing unit, under the action of which the high-strength coal seam is crushed, thereby reducing the wear of the drilling drill bit body and the pre-drilling drill bit, improving the drilling efficiency of the drilling drill bit body and the pre-drilling drill bit, and extending the service life of the drilling drill bit body and the pre-drilling drill bit. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic structural diagram of the present invention as a whole;

[0020] Figure 2 This is a structural breakdown diagram of the drill pipe housing and the drilling unit in the present invention;

[0021] Figure 3 This is a structural cross-sectional view of the drill pipe housing in the present invention;

[0022] Figure 4 This is a structural exploded cross-sectional view of the drill pipe housing, steel branch pipe, three-wing support frame and wire pipe in the present invention;

[0023] Figure 5 for Figure 4 A magnified view of the structure at point A;

[0024] Figure 6 This is a cross-sectional view of the structure of the center line tube, copper core, female cable end connector and male cable end connector of the present invention;

[0025] Figure 7 Schematic diagram of the structure of the drilling unit in the present invention;

[0026] Figure 8 A cross-sectional view of the structure of the drilling unit and the crushing mechanism of the present invention;

[0027] Figure 9 This is a structural split cross-sectional view of the crushing unit in the present invention;

[0028] Figure 10 This is a structural split cross-sectional view of the crushing unit part of the present invention;

[0029] Figure 11 This is a structural cross-sectional view of the crushing unit and the pre-drilling drill bit in the present invention.

[0030] Figure: 1. Drill pipe housing; 101. Steel branch pipe; 102. Three-wing support frame; 103. Wire pipe; 104. Female cable connector; 105. Male cable connector; 106. Copper core; 107. Stainless steel connector; 108. Conductive spring; 109. Circlip; 110. Support retaining ring; 111. Sealing ring; 2. Drilling and crushing mechanism; 21. Drilling unit; 2101. Round pipe; 2102. Drill bit housing; 2103. Drill bit body. 2104, connecting cover; 2105, pre-drilling drill bit; 2106, slide; 22, crushing unit; 2201, motor; 2202, turntable; 2203, round tube bracket; 2204, wave-shaped guide frame; 2205, guide wheel; 2206, guide rod; 2207, positioning rod; 2208, telescopic rod; 2209, impact drill bit body; 2210, limiting ring; 2211, slider; 2212, fixing rod; 2213, tension spring. DETAILED DESCRIPTION

[0031] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments 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.

[0032] See also Figure 1-11 The present invention provides a technical solution: a high-strength coalbed methane digital directional cable drill pipe, comprising a drill pipe shell 1, an inner cavity of the drill pipe shell 1 is provided with a steel branch pipe 101, an inner cavity of the steel branch pipe 101 is provided with a three-wing support frame 102, an inner cavity of the three-wing support frame 102 is provided with a wire pipe 103, one end of the wire pipe 103 is threadedly connected to a female cable connector 104, the other end of the wire pipe 103 is threadedly connected to a male cable connector 105, a copper core 106 is provided in the inner cavity of the wire pipe 103, both ends of the copper core 106 are threadedly connected to stainless steel connectors 107, two stainless steel connectors 107 are respectively provided in the inner cavities of the female cable connector 104 and the male cable connector 105, one of the stainless steel connectors 107 is provided with a conductive spring 108, and one end of the drill pipe shell 1 is threadedly connected to a drilling and crushing mechanism 2;

[0033] The drilling and crushing mechanism 2 includes a drilling unit 21, which is arranged at one end of the drill rod housing 1 and is used for drilling the coal seam.

[0034] The drilling and crushing mechanism 2 further includes a crushing unit 22 , which is disposed at one end of the drill rod housing 1 where the drilling unit 21 is mounted. The crushing unit 22 is used in conjunction with the drilling unit 21 to crush high-strength coal seams.

[0035] The drilling unit 21 includes a circular tube 2101, the surface of the circular tube 2101 is threadedly connected to the inner wall of the drill rod housing 1, the end of the circular tube 2101 away from the drill rod housing 1 is fixedly connected to the drill housing 2102, the end of the drill housing 2102 away from the circular tube 2101 is fixedly connected to the drilling drill body 2103, the end of the drilling drill body 2103 away from the drill housing 2102 is fixedly connected to the connecting cover 2104, and the connecting cover 2104 is away from the drilling drill body 2103. One end of the drill bit body 2103 is fixedly connected to a pre-drilling drill bit 2105, and the end of the pre-drilling drill bit 2105 close to the connecting cover 2104 passes through the inner cavity of the drill bit shell 2102; by setting the drilling unit 21, the coal seam is pre-treated and drilled, thereby avoiding damage to the drilling bit body 2103 during drilling, reducing the wear of the drilling bit body 2103, extending the service life of the drilling bit body 2103, and improving the drilling accuracy, thereby improving the working efficiency of the cable drill rod.

[0036] The specific implementation method of this embodiment is: in the process of drilling the coal seam, the pre-drilling drill bit 2105 is first used to pre-drill the coal seam. The pre-drilling drill bit 2105 not only reduces the wear of the drilling bit body 2103, but also improves the drilling accuracy. At the same time, the copper core 106, stainless steel joint 107 and conductive spring 108 are used to provide power for the drill rod, and the cable female end connector 104, cable male end connector 105 and drill rod housing 1 are connected by threaded connection to improve installation efficiency.

[0037] The crushing unit 22 includes a motor 2201, the surface of the motor 2201 is fixedly connected to the inner wall of the drill housing 2102, the output end of the motor 2201 is fixedly connected to a turntable 2202, a round tube bracket 2203 is provided on the side of the turntable 2202 away from the output end of the motor 2201, the inner wall of the round tube bracket 2203 is in contact with the surface of the pre-drilled drill bit 2105, the turntable 2202 is fixedly connected to a wavy guide frame 2204 on the side away from the output end of the motor 2201, the wavy guide frame 2204 is provided with three guide wheels 2205 on the end away from the turntable 2202, the guide wheel 2205 is fixedly connected to the side away from the wavy guide frame 2204, and one of the three guide rods 2206 The sides all pass through the round tube bracket 2203 and are fixedly connected to the positioning rod 2207, one end of the positioning rod 2207 is fixedly connected to the telescopic rod 2208, the end of the telescopic rod 2208 away from the positioning rod 2207 is fixedly connected to the inner wall of the round tube bracket 2203, the end of the positioning rod 2207 away from the telescopic rod 2208 passes through the pre-drilling drill bit 2105 and is fixedly connected to the impact drill bit body 2209; by setting the crushing unit 22, the high-strength coal seam is crushed, the wear of the drilling bit body 2103 and the pre-drilling drill bit 2105 is reduced, the drilling efficiency of the drilling bit body 2103 and the pre-drilling drill bit 2105 is improved, and the service life of the drilling bit body 2103 and the pre-drilling drill bit 2105 is extended.

[0038] The surface fixing sleeve of the motor 2201 is provided with a limiting ring 2210, and the surface of the limiting ring 2210 is fixedly connected to the inner wall of the drill bit housing 2102; by setting the limiting ring 2210, the motor 2201 is limited and fixed, thereby preventing the motor 2201 from falling off during use and improving the stability of the use of the motor 2201.

[0039] A slider 2211 is fixedly connected to the top of the turntable 2202, and a slide groove 2106 is provided in the inner cavity of the drill bit housing 2102. The surface of the slider 2211 is slidably connected to the inner wall of the slide groove 2106; the slider 2211 and the slide groove 2106 cooperate to limit the turntable 2202 to prevent the turntable 2202 from shaking during use.

[0040] A fixing rod 2212 is fixedly connected to the surface of the circular tube bracket 2203, and the end of the fixing rod 2212 away from the circular tube bracket 2203 is fixedly connected to the inner wall of the drill bit housing 2102; by setting the fixing rod 2212, the circular tube bracket 2203 is fixed, making it convenient for the drill bit housing 2102 to drive the circular tube bracket 2203 to rotate.

[0041] One end of the positioning rod 2207 is fixedly connected to a tension spring 2213, which is sleeved on the surface of the telescopic rod 2208, and the end of the tension spring 2213 away from the positioning rod 2207 is fixedly connected to the inner wall of the round tube bracket 2203; by setting the tension spring 2213, the positioning rod 2207 is reset, and when the three guide wheels 2205 move to the concave part of the wave-shaped guide frame 2204, the three impact drill bit bodies 2209 are pulled into the inner cavity of the pre-drilling drill bit 2105 by the reaction of the tension spring 2213. When the wheel 2205 moves to the raised part of the wavy guide frame 2204, it will drive the three impact drill bit bodies 2209 to move. Under the action of the continuous rotation of the wavy guide frame 2204, the three impact drill bit bodies 2209 will move back and forth to achieve pre-impact crushing. Although the impact drill bit body 2209 is driven by the motor 2201 and has a relatively small force, it can play a certain destructive role, so that when the pre-drilling drill bit 2105 crushes the high-strength coal seam, its wear can be reduced, thereby increasing the service life of the pre-drilling drill bit 2105.

[0042] The specific implementation of this embodiment is as follows: in the process of breaking the high-strength coal seam, the staff uses an external power supply to start the motor 2201, the output end of the motor 2201 drives the turntable 2202 to rotate, the turntable 2202 drives the wavy guide frame 2204 to rotate when rotating, the wavy guide frame 2204 squeezes the three guide wheels 2205 when rotating, so that the three guide wheels 2205 drive the three guide rods 2206 to move, the three guide rods 2206 drive the three positioning rods 2207 to move when moving, and the three positioning rods 2207 press the three tension springs 2213 and the three telescopic rods 2208 when moving. The three impact drill bodies 2209 are stretched and driven to move. When the three guide wheels 2205 move to the raised part of the wavy guide frame 2204, the three impact drill bodies 2209 are driven to move, and the high-strength coal seam is crushed. When the three guide wheels 2205 move to the depressed part of the wavy guide frame 2204, the three impact drill bodies 2209 are pulled to the inner cavity of the pre-drilling drill bit 2105 through the reaction of the tension spring 2213. Under the action of the continuous rotation of the wavy guide frame 2204, the three impact drill bodies 2209 are moved back and forth in a circle, thereby crushing the high-strength coal seam.

[0043] The inner cavity of the drill pipe housing 1 is provided with two retaining springs 109, and support retaining rings 110 are provided on the opposite sides of the two retaining springs 109. The surfaces of the two support retaining rings 110 are in contact with the inner wall of the drill pipe housing 1; through the cooperation of the retaining springs 109 and the support retaining rings 110, the steel branch pipe 101 is limited to prevent the steel branch pipe 101 from shaking in the inner cavity of the drill pipe housing 1, thereby improving the stability of the steel branch pipe 101 during use.

[0044] The three-wing support frame 102, the wire tube 103, the cable female end connector 104 and the cable male end connector 105 are all made of plastic, and the surfaces of the cable female end connector 104 and the cable male end connector 105 are in contact with the inner wall of the support retaining ring 110; by providing the three-wing support frame 102, the wire tube 103, the cable female end connector 104 and the cable male end connector 105 made of plastic material, the weight of the cable drill pipe is reduced and the cable drill pipe has corrosion resistance.

[0045] Two sealing rings 111 are provided on the surface of the cable male connector 105, and the material of the two sealing rings 111 is rubber. By providing the sealing ring 111 made of rubber material, the sealing performance of the connection between the cable male connector 105 and the cable female connector 104 is improved, thereby preventing liquid from leaking into the wire tube 103 during drilling, causing the copper core 106 to be damaged by moisture, and improving the service life of the copper core 106.

[0046] Working principle: In the process of drilling a coal seam, the pre-drilling drill bit 2105 is first used to pre-drill the coal seam. The pre-drilling drill bit 2105 reduces the wear of the drilling bit body 2103 and improves the accuracy of drilling. At the same time, the copper core 106, the stainless steel joint 107 and the conductive spring 108 are used to provide power for the drill rod, and the cable female end connector 104, the cable male end connector 105 and the drill rod housing 1 are connected by threaded connection to improve the installation efficiency. In the process of damaging the high-strength coal seam, the staff uses an external power supply to start the motor 2201, and the output end of the motor 2201 drives the turntable 2202 to rotate. When the turntable 2202 rotates, it drives the wavy guide frame 2204 to rotate. When the wavy guide frame 2204 rotates, it squeezes the three guide wheels 2205, so that the three guide wheels 2205 are driven The three guide rods 2206 are moved, and the three guide rods 2206 drive the three positioning rods 2207 to move when moving. The three positioning rods 2207 stretch the three tension springs 2213 and the three telescopic rods 2208 when moving, and drive the three impact drill bit bodies 2209 to move. When the three guide wheels 2205 move to the raised part of the wavy guide frame 2204, the three impact drill bit bodies 2209 are driven to move, and the high-strength coal seam is crushed. When the three guide wheels 2205 move to the recessed part of the wavy guide frame 2204, the three impact drill bit bodies 2209 are pulled into the inner cavity of the pre-drilling drill bit 2105 through the reaction of the tension spring 2213, and under the action of the continuous rotation of the wavy guide frame 2204, the three impact drill bit bodies 2209 are moved back and forth to crush the high-strength coal seam.

[0047] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0048] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A high-strength coalbed methane digital directional cable drill pipe, comprising a drill pipe housing (1), characterized in that: The inner cavity of the drill pipe housing (1) is provided with a steel branch pipe (101), the inner cavity of the steel branch pipe (101) is provided with a three-wing support frame (102), the inner cavity of the three-wing support frame (102) is provided with a wire pipe (103), one end of the wire pipe (103) is threadedly connected to a female cable end connector (104), the other end of the wire pipe (103) is threadedly connected to a male cable end connector (105), the inner cavity of the wire pipe (103) is provided with a copper core (106), both ends of the copper core (106) are threadedly connected to stainless steel joints (107), the two stainless steel joints (107) are respectively provided in the inner cavities of the female cable end connector (104) and the male cable end connector (105), the inner cavity of one of the stainless steel joints (107) is provided with a conductive spring (108), and one end of the drill pipe housing (1) is threadedly connected to a drilling and crushing mechanism (2); The drilling and crushing mechanism (2) comprises a drilling unit (21) and a crushing unit (22), wherein the drilling unit (21) and the crushing unit (22) are arranged at one end of the drill rod housing (1), the drilling unit (21) is used for drilling a coal seam, and the crushing unit (22) is used in conjunction with the drilling unit (21), and the crushing unit (22) is used for crushing a high-strength coal seam; The drilling unit (21) comprises a circular tube (2101), the surface of the circular tube (2101) being threadedly connected to the inner wall of one end of the drill rod housing (1), the end of the circular tube (2101) away from the drill rod housing (1) being fixedly connected to a drill housing (2102), the end of the drill housing (2102) away from the circular tube (2101) being fixedly connected to a punching drill body (2103), the end of the punching drill body (2103) away from the drill housing (2102) being fixedly connected to a connecting cover (2104), the end of the connecting cover (2104) away from the punching drill body (2103) being fixedly connected to a pre-punching drill bit (2105), and the end of the pre-punching drill bit (2105) close to the connecting cover (2104) penetrating into the inner cavity of the drill housing (2102); The crushing unit (22) includes a motor (2201), the surface of the motor (2201) is fixedly connected to the inner wall of the drill housing (2102), the output end of the motor (2201) is fixedly connected to the turntable (2202), a round tube bracket (2203) is provided on the side of the turntable (2202) away from the output end of the motor (2201), the inner wall of the round tube bracket (2203) contacts the surface of the pre-drilled drill bit (2105), the side of the turntable (2202) away from the output end of the motor (2201) is fixedly connected to the wavy guide frame (2204), and the end of the wavy guide frame (2204) away from the turntable (2202) is provided with three guides. The guide wheel (2205) is fixedly connected to a guide rod (2206) on one side of the guide wheel (2205) away from the wavy guide frame (2204), one side of each of the three guide rods (2206) passes through the circular tube bracket (2203) and is fixedly connected to a positioning rod (2207), one end of the positioning rod (2207) is fixedly connected to a telescopic rod (2208), one end of the telescopic rod (2208) away from the positioning rod (2207) is fixedly connected to the inner wall of the circular tube bracket (2203), and one end of the positioning rod (2207) away from the telescopic rod (2208) passes through the pre-drilling drill bit (2105) and is fixedly connected to the impact drill bit body (2209).

2. The high-strength coalbed methane digital directional cable drill pipe according to claim 1 is characterized by: A retaining ring (2210) is provided on the surface fixing sleeve of the motor (2201), and the surface of the retaining ring (2210) is fixedly connected to the inner wall of the drill housing (2102).

3. The high-strength coalbed methane digital directional cable drill pipe according to claim 2 is characterized by: A slider (2211) is fixedly connected to the top of the turntable (2202), a slide groove (2106) is provided in the inner cavity of the drill housing (2102), and the surface of the slider (2211) is slidably connected to the inner wall of the slide groove (2106).

4. The high-strength coalbed methane digital directional cable drill pipe according to claim 3 is characterized by: A fixing rod (2212) is fixedly connected to the surface of the circular tube bracket (2203), and one end of the fixing rod (2212) away from the circular tube bracket (2203) is fixedly connected to the inner wall of the drill housing (2102).

5. The high-strength coalbed methane digital directional cable drill pipe according to claim 4 is characterized in that: One end of the positioning rod (2207) is fixedly connected to a tension spring (2213), which is sleeved on the surface of the telescopic rod (2208), and one end of the tension spring (2213) away from the positioning rod (2207) is fixedly connected to the inner wall of the circular tube bracket (2203).

6. The high-strength coalbed methane digital directional cable drill pipe according to claim 1 is characterized by: The inner cavity of the drill rod housing (1) is provided with two retaining springs (109), and opposite sides of the two retaining springs (109) are provided with support retaining rings (110), and the surfaces of the two support retaining rings (110) are in contact with the inner wall of the drill rod housing (1).

7. The high-strength coalbed methane digital directional cable drill pipe according to claim 1 is characterized by: The three-wing support frame (102), the wire tube (103), the cable female end connector (104) and the cable male end connector (105) are all made of plastic, and the surfaces of the cable female end connector (104) and the cable male end connector (105) are in contact with the inner wall of the support retaining ring (110).

8. The high-strength coalbed methane digital directional cable drill pipe according to claim 1 is characterized in that: Two sealing rings (111) are provided on the surface of the cable male end connector (105), and the two sealing rings (111) are both made of rubber.

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