Large-burial-depth directional drilling guide control device and method

Abstract

The invention provides a large-burial-depth directional drilling guiding control device and method, and belongs to the technical field of directional drilling guiding devices. Comprising a drill rod, one end of the drill rod is in threaded connection with a drill bit assembly, and a rotating assembly is movably connected into the drill bit assembly. Through cooperation of a rotating assembly, a second round rod, a tooth block, a gear and other structures, a drill rod and a drill bit assembly are internally locked conveniently, then the overall stability and strength of the device are improved, through cooperation of a first round rod and a second guide groove, a round block drives a rotating disc to rotate when moving downwards, and then the rotating disc is driven to rotate; when the rotating disc rotates, the second round rod drives the cylindrical block and the tooth blocks on the cylindrical block to move towards the gear, and then the tooth blocks are all clamped into the gear, so that the risk caused by loose connection of the drill rod and the drill bit assembly in the large burial depth environment is reduced, and the overall stability of the device is improved.

Description

Technical Field

[0001] The invention relates to the technical field of directional drilling guide devices, and in particular to a deep-buried directional drilling guide control device and method. Background Art

[0002] The directional drilling guidance control device is a device used in directional drilling operations. It is mainly used to control the direction and trajectory of the drill bit. Its purpose is to achieve precise control of the drilling direction during the drilling process to ensure that the drilling can be carried out according to the predetermined route and angle. This device is composed of a gyroscope, a P2 wired control system, a multi-sensor fusion unit, an adaptive filtering module, an intelligent prediction control module and a drill bit control unit.

[0003] When in use, the existing directional drilling guidance control device generally uses a gyroscope installed inside it to measure the posture and angle of the drill bit in real time, and uses a control unit installed inside the drill bit to adjust the direction and angle of the drill bit in real time. However, when the device is drilling at a great depth, the contact between the drill bit and the rock will produce strong vibrations and impacts. These forces will be transmitted along the drill rod to the threaded connection with the drill bit. Therefore, long-term action may cause the threaded connection between the drill rod and the drill bit to loosen, thereby interrupting the drilling work and affecting the progress of the entire project. Therefore, the present application provides a guidance control device and method for directional drilling at a great depth to meet the needs. Summary of the invention

[0004] The technical problem to be solved by the present invention is to provide a deep directional drilling guide control device and method to solve the problem that the threaded connection between the drill rod and the drill bit of the existing device becomes loose during the drilling process, thereby affecting the progress of the project.

[0005] In order to solve the above technical problems, the present invention provides the following technical solutions:

[0006] A deep buried directional drilling guide control device comprises a drill rod, one end of the drill rod is threadedly connected to a drill bit assembly, and the drill bit assembly is movably connected to a rotating assembly inside; wherein the rotating assembly comprises a turntable, a first guide groove is provided on the surface of the turntable at an angle of 45 degrees, and a second guide groove is provided on the inner wall of the turntable at an angle of 180 degrees; a second round rod is movably connected inside the first guide groove, a cylindrical block is fixedly connected to the top of the second round rod, a tooth block is fixedly connected to one end of the cylindrical block, a first toothed block is provided on the inner surface of the drill bit assembly at an angle of 180 degrees, a cylindrical cam assembly is movably sleeved on the outer wall of the drill rod, a moving block and a limiting block are movably connected inside the drill rod, a third round rod is provided on the outer wall of the moving block at an angle of 180 degrees, a second toothed block is provided on a side of the moving block close to the drill bit assembly at an angle of 180 degrees, an O-ring is fixedly connected to the outer wall of the moving block, and a gear is fixedly connected to one end of the drill rod close to the drill bit assembly.

[0007] Optionally, the drill bit assembly includes a shell, the end of the shell away from the drill rod is fixedly connected to the drill bit body, the outer wall of the shell is movably sleeved with a baffle, the baffle seals the shell in an initial state, and the external thread of the baffle is connected with a bolt.

[0008] Optionally, a square groove cooperating with the first toothed block is provided in a 180-degree circular shape on the surface of the baffle plate. After the baffle plate rotates 90 degrees, the square groove is driven to overlap with the first toothed block, and a notch is provided on the surface of the first toothed block.

[0009] Optionally, opposite sides of the two first toothed blocks are fixedly connected with first springs fixed to the housing, and the first springs are used to squeeze the first toothed blocks and keep the two first toothed blocks in a tendency to move toward each other.

[0010] Optionally, a round block is movably connected to the inside of the shell, and a first round rod is arranged on the outer wall of the round block in a 180-degree ring shape. The first round rod is movably clamped in the inside of the second guide groove, and a first sliding groove cooperating with the first round rod is provided on the inner wall of the shell. The first sliding groove is used to circumferentially limit the first round rod when the turntable rotates.

[0011] Optionally, when the round block moves toward the shell, it drives the first round rod to slide along the track of the second guide groove and causes the turntable to rotate. When the turntable rotates, it drives the second round rod to slide along the track of the first guide groove. After the second round rod slides, it drives the tooth block to engage with the gear through the cylindrical block.

[0012] Optionally, the cylindrical cam assembly includes a rotating drum, the inner wall of the rotating drum is provided with a third guide groove in an annular shape of 180 degrees, the third round rod is movably clamped inside the third guide groove, and the outer wall of the drill rod is provided with a third slide groove matching the third round rod, and the third slide groove is used to circumferentially limit the third round rod when the rotating drum rotates.

[0013] Optionally, the outer wall of the rotating drum is provided with two gaskets, the gaskets are made of rubber material, the inner wall of the moving block is provided with protrusions in a ring shape of 180 degrees, the top of the protrusion is fixedly connected to a second spring, and the moving block is elastically connected to the drill rod through the second spring.

[0014] Optionally, the end of the limit block close to the drill bit assembly passes through the outer wall of the drill rod and abuts against the round block. After the moving block moves toward the drill bit assembly, it drives the protrusion on the inner wall of the moving block to abut against the end of the limit block away from the round block.

[0015] This application also proposes a deep directional drilling guidance control method, the steps are as follows:

[0016] S1, by rotating the drum, the third round rod slides along the track of the third guide groove, thereby driving the moving block and the second toothed block and the O-ring on one side thereof to move toward the direction of the drill bit assembly, so that the second toothed block abuts against the first toothed block and squeezes the two first toothed blocks to move in the opposite direction;

[0017] S2, the first toothed block is reset under the action of the first spring force and is engaged with the second toothed block, thereby fixing the position of the moving block and the cylindrical cam assembly, and at the same time, the O-ring is inserted into the interior of the drill assembly to seal the gap between the drill assembly and the drill rod;

[0018] S3. When the moving block moves downward, the round block is driven to move through the limit block, so that the first round rod drives the turntable to slide along the trajectory of the second guide groove, and then the second round rod drives the cylindrical block to move toward the gear along the trajectory of the first guide groove, and then the cylindrical block drives the tooth block to get stuck in the inside of the gear, so that the drill bit assembly cannot rotate.

[0019] Compared with the prior art, the present invention has at least the following beneficial effects:

[0020] In the above scheme, the cooperation between the rotating assembly, the second round rod, the tooth block and the gear and other structures facilitates the internal locking of the drill rod and the drill bit assembly, thereby improving the overall stability and strength of the device, and the cooperation between the first round rod and the second guide groove makes the turntable rotate when the round block moves downward, and then, the second round rod is movably connected to the inside of the first guide groove, so that when the turntable rotates, the cylindrical block and the tooth block thereon are driven toward the gear through the second round rod, and then, several tooth blocks are stuck in the inside of the gear, so that the drill bit assembly cannot rotate, thereby reducing the risk of loose connection between the drill rod and the drill bit assembly in a deep burial environment, thereby improving the overall stability of the device.

[0021] The cooperation among the first toothed block, the cylindrical cam assembly, the second toothed block and the O-ring can improve the sealing performance of the whole device, thereby improving the service life of the drill rod and the drill bit assembly. The cooperation between the third round rod and the third guide groove can make the second toothed block driven by the moving block to be inserted into the interior of the shell when the drum rotates. After the second toothed block is inserted into the interior of the shell, it meshes with the first toothed block, thereby fixing the positions of the second toothed block and the moving block, thereby making the cylindrical cam assembly unable to rotate. The O-ring is fixedly connected to the outer wall of the moving block, so that after the second toothed block is engaged, it drives the O-ring to fill the gap at the connection between the drill rod and the shell, thereby making the connection between the shell and the drill rod tighter, thereby improving the sealing performance of the whole device, thereby preventing the mud and sand and other materials from entering the interior of the device through the gap and affecting the service life of the whole device. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The accompanying drawings, which are incorporated herein and constitute a part of the specification, illustrate embodiments of the invention and, together with the description, further serve to explain the principles of the invention and to enable those skilled in the relevant art to make and use the invention.

[0023] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0024] Figure 2 An exploded view of the drill bit assembly of the present invention;

[0025] Figure 3 for Figure 2 Enlarged view of point A in the middle;

[0026] Figure 4 It is a schematic diagram of the partial structure of the front section of the drill bit assembly of the present invention;

[0027] Figure 5 It is a schematic diagram of the front cross-section structure of the present invention;

[0028] Figure 6 for Figure 5 Enlarged view of point B in the middle;

[0029] Figure 7 for Figure 5 Enlarged view of point C in the middle;

[0030] Figure 8 It is a partial cross-sectional view of the cylindrical cam assembly of the present invention;

[0031] Fig. 9 The figure is a schematic diagram of the positional relationship among the drill bit assembly, gear and limit block of the present invention.

[0032] [reference numerals]

[0033] 1. Drill rod; 2. Drill bit assembly; 201. Housing; 202. Drill bit body; 203. Baffle; 204. Square groove; 205. Bolt; 3. Rotating assembly; 301. Turntable; 302. First guide groove; 303. Second guide groove; 304. Round block; 305. First round rod; 306. First slide groove; 307. Second slide groove; 4. Second round rod; 5. Column block; 6. Tooth block; 7. First toothed block; 8. First spring; 9. Cylindrical cam assembly; 901. Rotating drum; 902. Third guide groove; 903. Gasket; 904. Third slide groove; 10. Moving block; 11. Third round rod; 12. Second spring; 13. Second toothed block; 14. O-ring; 15. Gear; 16. Limit block.

[0034] As shown in the figure, in order to clearly implement the structure of the embodiment of the present invention, specific structures and devices are marked in the figure, but this is only for illustrative purposes and is not intended to limit the present invention to the specific structure, device and environment. According to specific needs, ordinary technicians in this field can adjust or modify these devices and environments. DETAILED DESCRIPTION

[0035] The following is a detailed description of a deep directional drilling guide control device and method provided by the present invention in conjunction with the accompanying drawings and specific embodiments. At the same time, it is explained here that in order to make the embodiments more detailed, the following embodiments are the best and preferred embodiments, and those skilled in the art may also adopt other alternative methods to implement some known technologies; and the accompanying drawings are only for a more specific description of the embodiments, and are not intended to specifically limit the present invention.

[0036] It should be noted that the embodiments indicated by "one embodiment", "an embodiment", "an exemplary embodiment", "some embodiments" etc. in the specification may include specific features, structures or characteristics, but not every embodiment may include the specific features, structures or characteristics. In addition, when describing specific features, structures or characteristics in conjunction with an embodiment, it should be within the knowledge of technicians in the relevant field whether or not such features, structures or characteristics are explicitly described in conjunction with other embodiments.

[0037] In general, a term can be understood, at least in part, from its use in context. For example, depending, at least in part, on the context, the term "one or more" as used herein can be used to describe any feature, structure, or characteristic in the singular sense, or can be used to describe a combination of features, structures, or characteristics in the plural sense. Additionally, the term "based on" can be understood as not necessarily intended to convey an exclusive set of factors, but can instead, depending, at least in part, on the context, allow for the presence of other factors that are not necessarily explicitly described.

[0038] It will be understood that the meanings of “on,” “over,” and “above” in the present invention should be interpreted in the broadest manner, so that “on” not only means “directly on” something, but also includes the meaning of being “on” something with intervening features or layers therebetween, and “on” or “over” not only means “on” or “above” something, but also includes the meaning of being “on” or “above” something with no intervening features or layers therebetween.

[0039] Additionally, spatially relative terms such as "under," "beneath," "lower," "above," "upper," and the like may be used herein for descriptive convenience to describe the relationship of one element or feature to another element or features, as shown in the accompanying drawings. Spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the accompanying drawings. The device may be oriented in other ways, and the spatially relative descriptors used herein may be similarly interpreted accordingly.

[0040] like Figures 1 to 9 As shown, the present invention provides a deep burial directional drilling guide control device, comprising a drill rod 1, one end of the drill rod 1 is threadedly connected to a drill bit assembly 2, and the drill bit assembly 2 is internally movably connected to a rotating assembly 3; wherein the rotating assembly 3 comprises a rotating disk 301, the surface of the rotating disk 301 is provided with a first guiding groove 302 at a 45-degree angle, and the inner wall of the rotating disk 301 is provided with a second guiding groove 303 at a 180-degree angle; the first guiding groove 302 is internally movably connected to a second round rod 4, the top of the second round rod 4 is fixedly connected to a columnar block 5, one end of the columnar block 5 is provided with a second round rod 4, and the second round rod 4 is fixedly connected to a columnar block 5. A tooth block 6 is fixedly connected, a first toothed block 7 is provided in an inner ring shape at 180 degrees on the drill bit assembly 2, a cylindrical cam assembly 9 is movably sleeved on the outer wall of the drill rod 1, a moving block 10 and a limit block 16 are movably connected inside the drill rod 1, a third round rod 11 is provided in an outer ring shape at 180 degrees on the outer wall of the moving block 10, a second toothed block 13 is provided in an inner ring shape at 180 degrees on one side of the moving block 10 close to the drill bit assembly 2, an O-ring 14 is fixedly connected to the outer wall of the moving block 10, and a gear 15 is fixedly connected to one end of the drill rod 1 close to the drill bit assembly 2.

[0041] The above scheme is adopted: through the cooperation between the first round rod 305 and the second guide groove 303, the round block 304 drives the turntable 301 to rotate when it moves downward, and then the second round rod 4 is movably connected to the inside of the first guide groove 302, so that when the turntable 301 rotates, the columnar block 5 and the tooth block 6 thereon are driven to move toward the gear 15 through the second round rod 4, and then several tooth blocks 6 are all stuck in the inside of the gear 15, so that the drill bit assembly 2 cannot rotate, thereby reducing the risk caused by the loose connection between the drill rod 1 and the drill bit assembly 2 in a deep burial environment, thereby improving the overall stability of the device.

[0042] like Figure 1 to Figure 2 As shown, the drill bit assembly 2 includes a shell 201, and the end of the shell 201 away from the drill rod 1 is fixedly connected to the drill bit body 202, and the outer wall of the shell 201 is movably sleeved with a baffle 203, and the baffle 203 seals the shell 201 in the initial state. The external thread of the baffle 203 is connected with a bolt 205, and the surface of the baffle 203 is provided with a square groove 204 that matches the first toothed block 7 in an annular manner of 180 degrees. After the baffle 203 rotates 90 degrees, the square groove 204 is driven to coincide with the first toothed block 7, and a notch is provided on the surface of the first toothed block 7. The opposite sides of the two first toothed blocks 7 are fixedly connected with first springs 8 fixed to the shell 201, and the first springs 8 are used to squeeze the first toothed blocks 7 and keep the two first toothed blocks 7 moving toward each other.

[0043] The above scheme is adopted: through the cooperation between the third round rod 11 and the third guide groove 902, when the rotating drum 901 rotates, the second toothed block 13 is driven by the moving block 10 to be stuck into the interior of the housing 201, and the second toothed block 13 is engaged with the first toothed block 7 after being stuck into the interior of the housing 201, so as to fix the positions of the second toothed block 13 and the moving block 10, so that the cylindrical cam assembly 9 cannot rotate, and is fixedly connected to the outer wall of the moving block 10 through the O-ring 14, so that the second toothed block 13 drives the O-ring 14 to fill the gap at the connection between the drill pipe 1 and the housing 201 after being stuck, so as to make the connection between the housing 201 and the drill pipe 1 tighter, thereby increasing the sealing performance of the entire device, thereby preventing materials such as mud and sand from entering the interior of the device through the gap and affecting the service life of the entire device;

[0044] A slot is provided on the surface of the first toothed block 7, and its function is to provide a clear force application position for the operator's fingers or tools, thereby facilitating the operator to insert the fingers or tools into the slot, and making it easier for the operator to concentrate force to pull the first toothed block 7.

[0045] like Figures 2 to 6As shown, the inside of the shell 201 is movably connected with a round block 304, and the outer wall of the round block 304 is annularly provided with a first round rod 305 at 180 degrees. The first round rod 305 is movably engaged with the inside of the second guide groove 303. The inner wall of the shell 201 is provided with a first slide groove 306 that matches the first round rod 305. The first slide groove 306 is used to circumferentially limit the first round rod 305 when the turntable 301 rotates. When the round block 304 moves toward the shell 201, it drives the first round rod 305 to slide along the trajectory of the second guide groove 303 and rotates the turntable 301. When the turntable 301 rotates, it drives the second round rod 4 to slide along the trajectory of the first guide groove 302. After the second round rod 4 slides, it drives the tooth block 6 to engage with the gear 15 through the cylindrical block 5.

[0046] The above scheme is adopted: through the design of the first slide groove 306 and the second slide groove 307, its function is that the first slide groove 306 and the second slide groove 307 limit the movement freedom of the first round rod 305 and the second round rod 4, so that both can only move along a straight line, thereby ensuring the stable operation of the device.

[0047] like Figure 5 , Figures 8 to 9 As shown, the cylindrical cam assembly 9 includes a rotating drum 901, and the inner wall of the rotating drum 901 is provided with a third guide groove 902 in an annular manner at 180 degrees. The third round rod 11 is movably connected to the inside of the third guide groove 902, and the outer wall of the drill rod 1 is provided with a third slide groove 904 that cooperates with the third round rod 11. The third slide groove 904 is used to circumferentially limit the third round rod 11 when the rotating drum 901 rotates. The outer wall of the rotating drum 901 is provided with two gaskets 903, and the gaskets 903 are made of rubber material. The inner wall of the moving block 10 is provided with a protrusion in an annular manner at 180 degrees, and the top of the protrusion is fixedly connected to the second spring 12. The moving block 10 is elastically connected to the drill rod 1 through the second spring 12. The end of the limit block 16 close to the drill bit assembly 2 penetrates the outer wall of the drill rod 1 and abuts against the round block 304. After the moving block 10 moves toward the direction of the drill bit assembly 2, the protrusion on the inner wall of the moving block 10 is driven to abut against the end of the limit block 16 away from the round block 304.

[0048] The above solution is adopted: the gasket 903 is made of rubber material. Its function is that since the rubber gasket has a large friction, it is easier for the operator to apply force and grip the rotating drum 901 when contacting and rotating the rotating drum 901, so it is not easy to slip, thereby improving the convenience and safety of operation.

[0049] The design of the second spring 12 has the function that when the first toothed block 7 is released from the clamping connection with the second toothed block 13, the moving block 10 moves toward the inside of the drill pipe 1 under the elastic force of the second spring 12, thereby driving the second toothed block 13 and the O-ring 14 to separate from the inside of the housing 201, thereby facilitating the operator to replace the drill bit assembly 2. While the second spring 12 drives the moving block 10 to reset, the moving block 10 drives the rotating drum 901 to rotate in the opposite direction through the third round rod 11, thereby facilitating the operator to use it next time.

[0050] The working principle provided by the present invention is as follows: the operator threadedly connects the drill rod 1 and the drill bit assembly 2, and then rotates the baffle 203 ninety degrees to drive the square groove 204 to coincide with the first toothed block 7. At this time, the operator holds the rotating drum 901 and enhances the friction between the rotating drum 901 and the operator's hand through the design of the gasket 903, thereby making it easier to drive the rotating drum 901 to rotate. While the rotating drum 901 rotates, it drives the third round rod 11 to slide along the trajectory of the third guide groove 902, and then drives the moving block 10 to move toward the direction of the drill bit assembly 2 through the third round rod 11.

[0051] When the moving block 10 moves toward the drill bit assembly 2, it drives the two second toothed blocks 13 to be stuck in the interior of the housing 201. Then, the inclined surface of the second toothed block 13 abuts against the inclined surface of the first toothed block 7. At this time, the second toothed block 13 continues to move toward the interior of the drill bit assembly 2, thereby squeezing the two first toothed blocks 7 to move in the opposite direction, and then the first toothed block 7 moves to the outside of the housing 201 through the square groove 204. When one end of the second toothed block 13 abuts against the inner wall of the drill bit assembly 2, the moving block 10 drives one side of the O-ring 14 to be stuck in the interior of the drill bit assembly 2. At the same time, the two first toothed blocks 7 move toward each other under the action of the elastic force of the first spring 8, and the drill bit assembly 2 is completed. The movable block 10 is reset, thereby driving the first toothed block 7 to engage with the second toothed block 13, thereby fixing the position of the movable block 10. When the movable block 10 is fixed, the cylindrical cam assembly 9 cannot rotate, thereby fixing the position of the cylindrical cam assembly 9 after rotation, and then the O-ring 14 is fixed between the threaded connection of the housing 201 and the drill rod 1. After the O-ring 14 is fixed, the gap between the threaded connection of the housing 201 and the drill rod 1 is filled, thereby making the connection between the housing 201 and the drill rod 1 tighter, and at the same time increasing the sealing between the two, thereby effectively preventing mud, water, rock cuttings and other substances from entering the inside of the drill rod 1 through the gap of the threaded connection during drilling.

[0052] After the moving block 10 moves toward the inside of the drill pipe 1 for a period of time, it will drive the protrusion on its inner wall to abut against one end of the limit block 16, and then the moving block 10 continues to move, thereby squeezing the limit block 16 in the same direction through the protrusion, and then squeezing the round block 304 toward the inside of the shell 201 through the limit block 16. While the round block 304 moves, it drives the first round rod 305 to slide along the trajectory of the second guide groove 303, so that the turntable 301 rotates, and then the turntable 301 rotates, so that the second round rod 4 drives the cylindrical block 5 to move toward the direction of the gear 15 along the trajectory of the first guide groove 302. While the cylindrical block 5 moves, it drives the tooth block 6 to move in the same direction. When the second toothed block 13 abuts against the inner wall of the drill bit assembly 2, the cylindrical block 5 drives the tooth block 6 to be stuck in the inside of the gear 15, thereby locking the drill bit assembly 2 inside the drill pipe 1, thereby preventing the device from loosening or displacing the threaded connection due to external factors during the drilling process.

[0053] After the drill rod 1 and the housing 201 are internally locked, the operator rotates the baffle 203 in the opposite direction to reseal the housing 201. After the baffle 203 is rotated in the opposite direction by ninety degrees, the baffle 203 is fixed to the outer wall of the housing 201 by bolts 205. During the drilling process, the gyroscope and other sensors monitor the attitude angle and environmental parameters of the drill bit assembly 2 in real time. The data is transmitted to the P2 control system and the multi-sensor fusion unit through the wired transmission system. Then the control system and the fusion unit calculate and correct the azimuth and inclination, and the adaptive filtering module processes the data. Finally, the intelligent prediction control module predicts and adjusts the trajectory of the drill bit assembly 2 based on real-time data and historical data. The adjusted instructions are sent to the drill bit control unit, thereby adjusting the direction of the drill bit assembly 2 in real time, thereby ensuring that the drilling is carried out according to the predetermined trajectory.

[0054] The present invention covers any substitution, modification, equivalent method and scheme made on the essence and scope of the present invention. In order to make the public have a thorough understanding of the present invention, specific details are described in detail in the following preferred embodiments of the present invention, but those skilled in the art can fully understand the present invention without the description of these details. In addition, in order to avoid unnecessary confusion about the essence of the present invention, well-known methods, processes, procedures, components and circuits are not described in detail.

[0055] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A deep directional drilling guide control device, comprising a drill rod, characterized in that: One end of the drill rod is threadedly connected to a drill bit assembly, and the drill bit assembly is movably connected to a rotating assembly inside; The rotating assembly comprises a rotating disk, a first guide groove is formed in a 45-degree circular shape on the surface of the rotating disk, and a second guide groove is formed in a 180-degree circular shape on the inner wall of the rotating disk; A second round rod is movably connected inside the first guide groove, a cylindrical block is fixedly connected to the top of the second round rod, a tooth block is fixedly connected to one end of the cylindrical block, a first toothed block is arranged in an annular shape at 180 degrees inside the drill bit assembly, a cylindrical cam assembly is movably sleeved on the outer wall of the drill rod, a moving block and a limit block are movably connected inside the drill rod, a third round rod is arranged in an annular shape at 180 degrees on the outer wall of the moving block, a second toothed block is arranged in an annular shape at 180 degrees on one side of the moving block close to the drill bit assembly, an O-ring is fixedly connected to the outer wall of the moving block, and a gear is fixedly connected to one end of the drill rod close to the drill bit assembly.

2. The deep burying depth directional drilling guide control device according to claim 1 is characterized in that: The drill bit assembly comprises a shell, one end of the shell away from the drill rod is fixedly connected to the drill bit body, the outer wall of the shell is movably sleeved with a baffle, the baffle seals the shell in an initial state, and the external thread of the baffle is connected with a bolt.

3. The deep burying depth directional drilling guide control device according to claim 2 is characterized in that: The surface of the baffle is provided with a square groove matching with the first toothed block at an angle of 180 degrees. After the baffle rotates 90 degrees, the square groove is driven to overlap with the first toothed block. The surface of the first toothed block is provided with a notch.

4. The deep burying depth directional drilling guide control device according to claim 2 is characterized in that: The first springs fixed to the housing are fixedly connected to opposite sides of the two first toothed blocks. The first springs are used to squeeze the first toothed blocks and keep the two first toothed blocks moving toward each other.

5. The deep burying depth directional drilling guide control device according to claim 2 is characterized in that: A round block is movably connected inside the shell, and a first round rod is arranged on the outer wall of the round block in a 180-degree ring shape. The first round rod is movably clamped inside the second guide groove, and a first sliding groove cooperating with the first round rod is provided on the inner wall of the shell. The first sliding groove is used to circumferentially limit the first round rod when the turntable rotates.

6. The deep burying depth directional drilling guide control device according to claim 5 is characterized in that: When the round block moves toward the shell, it drives the first round rod to slide along the track of the second guide groove and causes the turntable to rotate. When the turntable rotates, it drives the second round rod to slide along the track of the first guide groove. After the second round rod slides, it drives the tooth block to engage with the gear through the cylindrical block.

7. The deep burying depth directional drilling guide control device according to claim 1 is characterized in that: The cylindrical cam assembly includes a rotating drum, the inner wall of which is provided with a third guide groove in an annular shape of 180 degrees, the third round rod is movably clamped in the inside of the third guide groove, the outer wall of the drill rod is provided with a third slide groove matching the third round rod, and the third slide groove is used to circumferentially limit the third round rod when the rotating drum rotates.

8. The deep burying depth directional drilling guide control device according to claim 7 is characterized in that: The outer wall of the rotating drum is provided with two gaskets, which are made of rubber material. The inner wall of the moving block is provided with a protrusion in an annular shape at 180 degrees. The top of the protrusion is fixedly connected with a second spring, and the moving block is elastically connected to the drill rod through the second spring.

9. The deep burying depth directional drilling guide control device according to claim 5, characterized in that: The end of the limit block close to the drill bit assembly penetrates the outer wall of the drill rod and abuts against the round block. After the moving block moves toward the drill bit assembly, the protrusion on the inner wall of the moving block is driven to abut against the end of the limit block away from the round block.

10. A deep burial depth directional drilling guidance control method, applied to the deep burial depth directional drilling guidance control device according to any one of claims 1 to 9, characterized in that: Here are the steps: S1, by rotating the drum, the third round rod slides along the track of the third guide groove, thereby driving the moving block and the second toothed block and the O-ring on one side thereof to move toward the direction of the drill bit assembly, so that the second toothed block abuts against the first toothed block and squeezes the two first toothed blocks to move in the opposite direction; S2, the first toothed block is reset under the action of the first spring force and is engaged with the second toothed block, thereby fixing the position of the moving block and the cylindrical cam assembly, and at the same time, the O-ring is inserted into the interior of the drill assembly to seal the gap between the drill assembly and the drill rod; S3. When the moving block moves downward, the round block is driven to move through the limit block, so that the first round rod drives the turntable to slide along the trajectory of the second guide groove, and then the second round rod drives the cylindrical block to move toward the gear along the trajectory of the first guide groove, and then the cylindrical block drives the tooth block to get stuck in the inside of the gear, so that the drill bit assembly cannot rotate.

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