Anti-jamming drilling tool structure with slurry bypass channel

Abstract

The invention provides an anti-jamming drilling tool structure with a slurry bypass channel, and relates to the technical field of drilling tools, the anti-jamming drilling tool structure comprises a through pipe, a feed hopper, a bypass valve assembly and an anti-jamming assembly, the through pipe is provided with two first bypass holes, the bottom end of the feed hopper is fixedly connected with a screen, and the bottom end of the anti-jamming assembly is provided with a drill bit; the bypass valve assembly comprises a valve body fixedly connected to an inner cavity of the through pipe, a limiting ring is fixedly connected to the bottom end of the inner wall of the valve body, a lantern ring is fixedly connected to the bottom end of the valve body, the anti-clamping assembly comprises a connecting ring fixedly connected to the top end of the drill bit, a plurality of second bypass holes are formed in the connecting ring, and a drill rod is fixedly connected to the top end of the connecting ring. A plurality of sliding rings are fixedly connected to the surface of the drill rod, circulating flow of slurry in an inner cavity of a bypass channel is controlled through automatic closing of the bypass valve assembly, blockage of the inner cavity of the drilling tool caused by impurities in the slurry is avoided through a screen, and the occurrence of drill jamming accidents in the rotating process of the drill rod and a drill bit is reduced through an anti-jamming assembly.

Description

Technical Field

[0001] The present invention relates to the technical field of drilling tools, and in particular to an anti-sticking drilling tool structure with a mud bypass channel. Background Art

[0002] Drilling tools are a general term for tools used in hole-drilling and hole-boring operations, and are primarily categorized into two types: exploration (well drilling) tools and metallurgical furnace tools. In drilling operations, stuck drill bits are a common and serious problem that can lead to interruptions in drilling operations, equipment damage, and even casualties. The causes of stuck drill bits vary, including but not limited to sticking drill bits due to prolonged time spent in the well, sticking drill bits due to wellbore shrinkage or sand deposition, and sticking drill bits due to formation collapse or fallen objects in the well. These stuck drill bits not only affect drilling efficiency but can also increase drilling costs. Therefore, preventing and resolving stuck drill bits is a crucial step in drilling technology.

[0003] Deficiencies in the existing technology: The mud used in existing drilling tools is usually composed of water, bentonite, treatment agents, weighting materials, etc., so there may be lumps in the mud due to uneven mixing, and large amounts of gravel may be mixed in the mud during use. When the mud flows through the inner cavity of the drill tool, it may cause a drill sticking accident. At the same time, when pulling out of the drill, the drill rod is pulled out of the wellbore. If the mud continues to flow through the motor, it may cause a wellbore pressure imbalance or mud leakage. Rock chips in the wellbore cavity may also enter the drill tool and cause a drill sticking accident. Summary of the Invention

[0004] The problem to be solved by the present invention is that the mud used in existing drilling tools may contain lumps and large gravel caused by uneven mixing, which may lead to blockage of the drilling tools. At the same time, the continuous flow of mud through the motor may cause wellbore pressure imbalance or mud leakage. Rock cuttings in the wellbore cavity may also enter the drilling tool and cause drill sticking accidents.

[0005] In order to solve the above technical problems, the present invention provides an anti-stuck drill tool structure with a mud bypass channel, comprising a through pipe and a feed hopper fixedly connected to the top of the through pipe, a bypass valve assembly for controlling mud circulation is provided at the upper part of the inner cavity of the through pipe, two first bypass holes are formed on the through pipe, an anti-stuck assembly is provided at the lower part of the inner cavity of the through pipe, a screen is fixedly connected to the bottom end of the feed hopper, and a drill bit is provided at the bottom end of the anti-stuck assembly; The bypass valve assembly includes a valve body fixedly connected to the inner cavity of the through pipe, the bottom end of the inner wall of the valve body is fixedly connected to a limit ring, and the bottom end of the valve body is fixedly connected to a collar; The anti-stuck component includes a connecting ring fixedly connected to the top of the drill bit, a plurality of second bypass holes are opened on the connecting ring, a drill rod is fixedly connected to the top of the connecting ring, and a plurality of sliding rings are fixedly connected to the surface of the drill rod.

[0006] Preferably, the feed hopper is connected to the inner cavity of the through pipe through a screen, and the valve body and the inner cavity of the collar are connected to each other.

[0007] Preferably, the inner cavity of the valve body is provided with a piston, the surface of the piston is sleeved with a spring, the spring is located between the valve body and the piston, and the piston is movably connected to the top end of the limiting ring.

[0008] Preferably, a third bypass hole is provided on the valve body, the third bypass hole corresponds to the position of the first bypass hole and is connected and communicated with each other, and the inner cavity of the piston is connected and communicated with the inner cavity of the valve body and the collar.

[0009] Preferably, a motor rotor is provided in the middle of the inner cavity of the through tube, the bottom end of the motor rotor is fixedly connected to a transmission shaft, the motor rotor is rotatably connected to the inner cavity of the collar, the bottom end of the transmission shaft is fixedly connected to an adapter, the adapter is fixedly connected to the top end of the drill rod, and the bottom end of the drill rod is fixedly connected to the drill bit.

[0010] Preferably, a fixing sleeve is fixedly connected to one side of the inner cavity of the through pipe, and a plurality of sliding grooves are provided on the inner wall of the fixing sleeve. The position of the sliding ring corresponds to the position of the sliding groove and is movably connected.

[0011] Preferably, the space between the through pipe and the motor rotor and the transmission shaft is set as a bypass channel, four first channels are opened around the surface of the adapter, a second channel is opened in the middle of the inner cavity of the adapter, and the bypass channel is connected to the inner cavity of the second channel through the first channel.

[0012] Preferably, sealing rings are provided at both upper and lower ends of the drill rod, and the sealing rings are fixedly connected to the inner wall of the through pipe. A third channel is opened in the middle of the inner cavity of the drill rod, and the third channel is connected to the inner cavity of the second channel.

[0013] Preferably, four jet grooves are provided on the surface of the drill bit, a nozzle is provided in the middle of the inner cavity of the drill bit, the jet grooves correspond to the positions of the second bypass holes, and the nozzle is connected to the inner cavity of the third channel.

[0014] Technical effects and advantages of the present invention: 1. The present invention provides a screen to perform a simple screening process on the working mud. When the working mud is added to the inner cavity of the through pipe through the feed hopper, the mud is first screened through the screen. When water, bentonite, treatment agent, weighting material, etc. are combined in the mud, the agglomerates produced by the mixing or the gravel produced during the use of the drilling tool are screened. After the screening process, the mud enters the inner cavity of the through pipe through the bypass valve assembly, thereby preventing large agglomerates or gravel that are not evenly mixed in the mud from entering the inner cavity of the through pipe, causing large impurities in the mud to be blocked between the through pipe and the internal structure, causing the drilling tool to jam and affecting the normal use of the drilling tool, thereby optimizing the mud circulation system.

[0015] 2. The present invention controls the opening and closing of the first bypass hole by providing a bypass valve assembly. After the mud enters the inner cavity of the through pipe through the feed hopper, the mud applies pressure to the piston, causing the spring to be compressed, pushing the piston to move in the inner cavity of the valve body. When the piston is pushed, the first bypass hole and the third bypass hole are closed, and the first bypass hole is blocked by the piston, so that the mud can pass through the inner cavity of the piston, the limit sleeve and the collar. After passing through the inner cavity of the collar, the mud passes through the surface of the motor rotor, pushing the motor rotor to rotate in the inner cavity of the collar. The speed and torque are transmitted to the drill bit through the transmission shaft to realize drilling and well repair operations. At the same time, the mud can also cool the drill bit, carry rock cuttings, and balance the formation pressure. Before the drilling tool is started, the bypass valve is in an open state, and the third bypass hole is connected to the first bypass hole, allowing mud to circulate directly through the bypass channel, avoiding the formation of high pressure of mud inside the drilling tool, thereby reducing the resistance when the motor is started, and preventing damage to the drilling tool or burning of the motor due to excessive torque.

[0016] 3. The present invention prevents drill sticking accidents by providing an anti-stuck component. After the mud flows through the motor rotor, the adapter prevents it from continuously flowing through the motor rotor, causing pressure imbalance in the through-tube cavity. The mud bypass channel adjusts the mud path to ensure that the mud can flow in a predetermined direction. The bypass channel and the anti-stuck component optimize the mud circulation system, improve the mud carrying capacity and cooling effect, thereby accelerating the drilling speed and reducing the risk of drill sticking. The mud enters the inner cavity of the third channel through the second channel, and enters the inner cavity of the drill bit through the third channel. Mud leakage is avoided by the sealing ring, which prevents mud from entering the inner cavity of the drill pipe and the through-tube 1 and affecting the rotation of the drill pipe. When the drill pipe rotates, the sliding ring on the surface rotates in the inner cavity of the slide groove, ensuring that the drill pipe can drive the drill bit to rotate efficiently, improving the drilling effect of the drilling tool, and reducing the possibility of drill sticking accidents. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the overall structure of embodiment 1 of the present invention.

[0018] Figure 2 It is a schematic diagram of the overall cross-sectional structure of embodiment 1 of the present invention.

[0019] Figure 3 This is a schematic structural diagram of a bypass valve assembly according to a first embodiment of the present invention.

[0020] Figure 4 For the first embodiment of the present invention Figure 2 A magnified schematic diagram of the structure in the middle.

[0021] Figure 5 This is a schematic structural diagram of an anti-stuck component according to a first embodiment of the present invention.

[0022] Figure 6 For the first embodiment of the present invention Figure 2 Enlarged schematic diagram of the structure at point B in the middle.

[0023] Figure 7 For the first embodiment of the present invention Figure 2 Enlarged schematic diagram of the structure at point C in the middle.

[0024] Figure 8 This is a schematic structural diagram of an anti-stuck component according to a second embodiment of the present invention.

[0025] The accompanying drawings are marked as follows: 1. through pipe; 2. feed hopper; 3. bypass valve assembly; 31. valve body; 32. limiting ring; 33. collar; 34. piston; 35. spring; 36. third bypass hole; 4. first bypass hole; 5. anti-stuck assembly; 51. connecting ring; 52. second bypass hole; 53. drill rod; 54. sliding ring; 55. sealing ring; 56. third channel; 6. screen; 7. drill bit; 8. motor rotor; 9. transmission shaft; 10. adapter; 11. fixing sleeve; 12. slide groove; 13. bypass channel; 14. first channel; 15. second channel; 16. jet groove; 17. nozzle. DETAILED DESCRIPTION

[0026] Example 1 The present invention provides an anti-stuck drill tool structure with a mud bypass channel, such as Figure 1 - Figure 7 As shown, it includes a through pipe 1 and a feed hopper 2 fixedly connected to the top thereof, a bypass valve assembly 3 for controlling mud circulation is provided at the upper part of the inner cavity of the through pipe 1, two first bypass holes 4 are provided on the through pipe 1, an anti-stuck assembly 5 is provided at the lower part of the inner cavity of the through pipe 1, a screen 6 is fixedly connected to the bottom end of the feed hopper 2, and a drill bit 7 is provided at the bottom end of the anti-stuck assembly 5.

[0027] Further, such as Figure 1 、 Figure 2 and Figure 3 As shown, the bypass valve assembly 3 includes a valve body 31 fixedly connected to the inner cavity of the through pipe 1, a limit ring 32 is fixedly connected to the bottom end of the inner wall of the valve body 31, and a collar 33 is fixedly connected to the bottom end of the valve body 31.

[0028] Further, such as Figure 1 、 Figure 2 and Figure 5 The anti-stuck component 5 includes a connecting ring 51 fixedly connected to the top of the drill bit 7. Four second bypass holes 52 are opened on the connecting ring 51. The top of the connecting ring 51 is fixedly connected to the drill rod 53. The surface of the drill rod 53 is fixedly connected to a plurality of sliding rings 54.

[0029] Further, such as Figure 2 and Figure 4 As shown, the feed hopper 2 is connected to the inner cavity of the through pipe 1 through the screen 6, and the inner cavities of the valve body 31 and the sleeve 33 are connected to each other. When the working mud is added to the inner cavity of the through pipe 1 through the feed hopper 2, the mud is first screened through the screen 6 before entering the inner cavity of the through pipe 1, so as to prevent large lumps or gravel that are not evenly mixed in the mud from entering the inner cavity of the through pipe 1, causing large impurities in the mud to be blocked between the through pipe 1 and the internal structure, causing the drilling tool to jam and affecting the normal use of the drilling tool.

[0030] Further, such as Figure 3 and Figure 4 As shown, the inner cavity of the valve body 31 is provided with a piston 34, and the surface of the piston 34 is provided with a spring 35. The spring 35 is located between the valve body 31 and the piston 34, and the piston 34 is movably connected to the top of the limit ring 32. After the mud enters the inner cavity of the through pipe 1 through the feed hopper 2, the mud applies pressure to the piston 34, so that the spring 35 is compressed, pushing the piston 34 to move in the inner cavity of the valve body 31 to control the opening and closing of the bypass valve assembly 3. When the piston 34 is pushed, the moving distance of the piston 34 is limited by the limit ring 32, and the spring 35 is squeezed between the piston 34 and the limit ring 32, controlling the valve body 31 to achieve automatic closing operation.

[0031] Further, such as Figure 4 As shown, a third bypass hole 36 is provided on the valve body 31. The third bypass hole 36 corresponds to the position of the first bypass hole 4 and is connected to it. The inner cavity of the piston 34 is connected to the inner cavity of the valve body 31 and the collar 33. Before the drilling tool is started, the bypass valve assembly 3 is in an open state. The third bypass hole 36 is connected to the first bypass hole 4, allowing mud to circulate directly through the inner cavity of the third bypass hole 36 and the first bypass hole 4, avoiding the formation of high pressure in the mud inside the drilling tool, thereby reducing the resistance when the motor is started, and preventing damage to the drilling tool or burning of the motor due to excessive torque.

[0032] Further, such as Figure 2 、 Figure 4 and Figure 5As shown, a motor rotor 8 is provided in the middle of the inner cavity of the through pipe 1, and the bottom end of the motor rotor 8 is fixedly connected to a transmission shaft 9, which is rotatably connected to the inner cavity of the collar 33. The bottom end of the transmission shaft 9 is fixedly connected to an adapter 10, which is fixedly connected to the top of the drill pipe 53, and the bottom end of the drill pipe 53 is fixedly connected to the drill bit 7. The mud passes through the piston 34, the valve body 31 and the inner cavity of the collar 33, passes through the surface of the motor rotor 8, and pushes the motor rotor 8 to rotate in the inner cavity of the collar 33. The motor rotor 8 drives the transmission shaft 9 to rotate, and the speed and torque are transmitted to the drill pipe 53 and the drill bit 7 through the transmission shaft 9 to realize drilling and well repair operations. At the same time, the mud can also cool the drill bit 7, carry rock cuttings, and balance the formation pressure.

[0033] Further, such as Figure 2 and Figure 6 As shown, a fixed sleeve 11 is fixedly connected to one side of the inner cavity of the through pipe 1, and a plurality of slide grooves 12 are opened on the inner wall of the fixed sleeve 11. The position of the sliding ring 54 corresponds to the position of the slide groove 12 and is movably connected. When the transmission shaft 9 drives the drill rod 53 to rotate, the sliding ring 54 connected to the surface rotates in the inner cavity of the slide groove 12, ensuring the stability and smoothness of the drill rod 53 during rotation, and reducing the occurrence of drill jams in the drill tool.

[0034] Further, such as Figure 2 、 Figure 5 and Figure 6 As shown, the space between the through pipe 1 and the motor rotor 8 and the transmission shaft 9 is set as a bypass channel 13. Four first channels 14 are opened around the surface of the adapter 10. A second channel 15 is opened in the middle of the inner cavity of the adapter 10. The bypass channel 13 is connected to the inner cavity of the second channel 15 through the first channel 14. After passing through the bypass channel 13, the mud enters the inner cavity of the second channel 15 through the first channel 14. After the mud flows through the motor rotor 8, it passes through the adapter 10 to avoid continuous flow through the motor rotor 8, causing pressure imbalance in the inner cavity of the through pipe 1. The mud bypass channel 13 adjusts the mud path to ensure The mud can flow in a predetermined direction, and the mud circulation system is optimized through the bypass channel 13 and the anti-stuck component 5, thereby improving the carrying capacity and cooling effect of the mud, thereby accelerating the drilling speed and reducing the risk of drill sticking. After the drill bit stops, the addition of mud is stopped, and the piston 34 is rebounded to the initial position by the spring 35. The first bypass hole 4 and the third bypass hole 36 are connected, and the mud circulates in the inner cavity of the bypass channel 13 and directly returns to the ground through the third bypass hole 36 and the first bypass hole 4, preventing the mud from stagnating at the drill bit 7 and causing sand settling and drill sticking, while preventing the drill bit from being fatigued and damaged by being subjected to mud pressure for a long time.

[0035] Further, such as Figure 5 and Figure 6As shown, sealing rings 55 are provided at both upper and lower ends of the drill rod 53, and the sealing rings 55 are fixedly connected to the inner wall of the through pipe 1. A third channel 56 is opened in the middle of the inner cavity of the drill rod 53, and the third channel 56 is connected to the inner cavity of the second channel 15. Mud enters the inner cavity of the third channel 56 through the second channel 15, and enters the inner cavity of the drill bit 7 through the third channel 56. The sealing rings 55 prevent mud leakage and prevent mud from entering the inner cavity of the drill rod 53 and the through pipe 1, affecting the rotation of the drill rod 53, ensuring that the drill rod 53 can drive the drill bit 7 to rotate efficiently, improving the drilling effect of the drill tool, and reducing the possibility of drill sticking accidents. At the same time, it can also prevent rock chips in the inner cavity of the wellbore from entering the drill tool through the gap when drilling.

[0036] Further, such as Figure 7 As shown, four jet grooves 16 are provided on the surface of the drill bit 7, and a nozzle 17 is provided in the middle of the inner cavity of the drill bit 7. The jet grooves 16 correspond to the positions of the second bypass holes 52, and the nozzle 17 is connected to the inner cavity of the third channel 56. Mud enters the second bypass hole 52 and flows out through the jet grooves 16 and the nozzle 17. When the drilling tool reaches the rated speed, the bypass valve assembly 3 automatically closes, and the mud is forced to be ejected at high speed through the jet grooves 16 and the nozzle 17, forming a strong impact force and rock carrying capacity, ensuring that the rock cuttings are returned to the ground in time to avoid repeated crushing of the formation or drill sticking.

[0037] Example 2 On the basis of the first embodiment, the present embodiment increases the number of the second bypass holes 52 to eight, and eight second bypass holes 52 are opened on the connecting ring 51, wherein four of the second bypass holes 52 correspond to the positions of the four jet grooves 16, and the positions of the additional four second bypass holes 52 and the four jet grooves 16 are staggered with each other. The mud passes through the second bypass holes 52 from the inner cavity of the drill tool and flows out through the jet grooves 16 and the nozzle 17. When the amount of mud is too much or the flow rate is too fast, the four second bypass holes 52 added in the present embodiment increase the discharge quantity and speed, so as to avoid the four second bypass holes 52 being unable to discharge the mud in the inner cavity of the drill tool in time when the amount of mud is too large, and accumulating in the inner cavity of the drilling rig to cause backflow. On the basis of the first embodiment, the present embodiment adds the anti-blocking function of the drill tool, effectively increases the anti-stuck effect of the drill tool, and makes the drill tool suitable for normal or excessive mud conditions.

[0038] The working principle of the present invention is as follows: the mud is first screened through the screen 6, and when the mud is composed of water, bentonite, treatment agent, weighting material, etc., the agglomerates generated by the mixture or the gravel generated during the use of the drilling tool are screened. After screening, the agglomerates or gravel generated during the use of the drilling tool are passed through the bypass valve assembly 3 into the inner cavity of the through pipe 1 to prevent larger agglomerates or gravel that are not evenly mixed in the mud from entering the inner cavity of the through pipe 1, causing blockage of the inner cavity of the through pipe 1 and jamming of the drilling tool. Before the drilling tool is started, the bypass valve assembly 3 is in an open state, and the third bypass hole 36 is connected to the first bypass hole 4, allowing the mud to circulate directly through the inner cavity of the third bypass hole 36 and the first bypass hole 4, avoiding the mud from forming high pressure inside the drilling tool, thereby reducing the resistance when the motor is started and preventing torque Too much pressure may cause damage to the drill tool or burn out of the motor. When the drill tool is started, the mud enters the inner cavity of the through pipe 1 through the feed hopper 2, and first flows through the piston 34. The mud applies pressure to the piston 34. When the mud flows, the spring 35 is compressed, pushing the piston 34 to move in the inner cavity of the valve body 31 to control the opening and closing of the bypass valve assembly 3. The spring 35 is compressed and the piston 34 moves downward, causing the piston 34 to block the third bypass hole 36, so that the bypass valve assembly 3 is closed. The mud passes through the inner cavity of the piston 34, through the inner cavity of the limit ring 32 and the collar 33, and flows from the surface of the motor rotor 8. When passing through the surface of the motor rotor 8, it pushes the motor rotor 8 to rotate in the inner cavity of the collar 33. When the motor rotor 8 rotates, it drives the transmission shaft 9 to rotate, and the speed and torque are transmitted through the transmission The driving shaft 9 transmits the force to the drill rod 53 and the drill bit 7. When the driving shaft 9 drives the drill rod 53 to rotate, the sliding ring 54 connected to the surface rotates in the inner cavity of the slide groove 12, ensuring the stability and smoothness of the drill rod 53 during rotation, reducing the occurrence of drill sticking. After the mud flows through the motor rotor 8 in the inner cavity of the bypass channel 13, it enters the inner cavity of the second channel 15 from the inner cavity of the bypass channel 13 through the first channel 14 on the surface of the adapter 10, avoiding continuous flow through the motor rotor 8, causing pressure imbalance in the inner cavity of the through pipe 1. The mud bypass channel 13 adjusts the mud path to ensure that the mud can flow in the predetermined direction. The mud circulation system is optimized through the bypass channel 13 and the anti-stuck component 5, and the mud carrying capacity and cooling effect are improved, thereby accelerating the drilling speed and reducing The risk of drill sticking is eliminated. Then, the mud enters the inner cavity of the third channel 56 through the second channel 15, and then enters the inner cavity of the drill bit 7 through the third channel 56. The mud is prevented from leaking during the flow of mud by the sealing ring 55, and enters between the drill rod 53 and the through pipe 1, affecting the rotation of the drill rod 53, ensuring that the drill rod 53 can drive the drill bit 7 to rotate efficiently, improving the drilling effect of the drill tool, and reducing the possibility of drill sticking accidents. Finally, the mud enters the second bypass hole 52 and flows out through the jet groove 16 and the nozzle 17. When the drill tool reaches the rated speed, the bypass valve assembly 3 is automatically closed, and the mud is forced to be ejected at high speed through the jet groove 16 and the nozzle 17, forming a strong impact force and rock carrying capacity, ensuring that the rock cuttings are returned to the ground in time, avoiding repeated crushing of the formation or drill sticking, and realizing drilling and well repair operations.At the same time, the mud can also cool the drill bit 7, carry cuttings, and balance the formation pressure.

[0039] It will be understood that the present invention is described by way of some embodiments, and it will be appreciated by those skilled in the art that various changes or equivalent substitutions may be made to these features and embodiments without departing from the spirit and scope of the present invention. In addition, under the teachings of the present invention, these features and embodiments may be modified to adapt to specific circumstances and materials without departing from the spirit and scope of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are intended to be protected by the present invention.

Claims

1. An anti-stuck drilling tool structure with a mud bypass channel, comprising a through pipe (1) and a feed hopper (2) fixedly connected to the top of the through pipe, characterized in that: A bypass valve assembly (3) for controlling mud circulation is provided at the upper portion of the inner cavity of the through pipe (1), two first bypass holes (4) are provided on the through pipe (1), an anti-stuck assembly (5) is provided at the lower portion of the inner cavity of the through pipe (1), a screen (6) is fixedly connected to the bottom end of the feed hopper (2), and a drill bit (7) is provided at the bottom end of the anti-stuck assembly (5); The bypass valve assembly (3) comprises a valve body (31) fixedly connected to the inner cavity of the through pipe (1), a limit ring (32) fixedly connected to the bottom end of the inner wall of the valve body (31), and a collar (33) fixedly connected to the bottom end of the valve body (31); The anti-jamming assembly (5) comprises a connecting ring (51) fixedly connected to the top of the drill bit (7), a plurality of second bypass holes (52) being provided on the connecting ring (51), a drill rod (53) being fixedly connected to the top of the connecting ring (51), and a plurality of sliding rings (54) being fixedly connected to the surface of the drill rod (53).

2. The anti-stuck drill tool structure with a mud bypass channel according to claim 1, characterized in that: The feed hopper (2) is connected to the inner cavity of the through pipe (1) through the screen (6), and the inner cavities of the valve body (31) and the collar (33) are connected to each other.

3. The anti-stuck drill tool structure with a mud bypass channel according to claim 1, characterized in that: The inner cavity of the valve body (31) is provided with a piston (34), the surface of the piston (34) is provided with a spring (35), the spring (35) is located at the top end of the valve body (31), and the piston (34) is movably connected to the top end of the limiting ring (32).

4. The anti-stuck drill tool structure with a mud bypass channel according to claim 3, characterized in that: The valve body (31) is provided with a third bypass hole (36), the third bypass hole (36) corresponds to the position of the first bypass hole (4) and is connected and communicated with each other, and the inner cavity of the piston (34) is connected and communicated with the inner cavities of the valve body (31) and the collar (33).

5. The anti-stuck drill tool structure with a mud bypass channel according to claim 1, characterized in that: A motor rotor (8) is provided in the middle of the inner cavity of the through pipe (1), the bottom end of the motor rotor (8) is fixedly connected to a transmission shaft (9), the motor rotor (8) is rotatably connected to the inner cavity of the collar (33), the bottom end of the transmission shaft (9) is fixedly connected to an adapter (10), the adapter (10) is fixedly connected to the top end of a drill rod (53), and the bottom end of the drill rod (53) is fixedly connected to a drill bit (7).

6. The anti-stuck drilling tool structure with a mud bypass channel according to claim 1, characterized in that: A fixed sleeve (11) is fixedly connected to one side of the inner cavity of the through tube (1), and a plurality of sliding grooves (12) are provided on the inner wall of the fixed sleeve (11). The position of the sliding ring (54) corresponds to the position of the sliding groove (12) and is movably connected thereto.

7. The anti-stuck drilling tool structure with a mud bypass channel according to claim 5, characterized in that: The space between the through pipe (1) and the motor rotor (8) and the transmission shaft (9) is set as a bypass channel (13), four first channels (14) are opened around the surface of the adapter (10), a second channel (15) is opened in the middle of the inner cavity of the adapter (10), and the bypass channel (13) is connected to the inner cavity of the second channel (15) through the first channel (14).

8. The anti-stuck drill tool structure with a mud bypass channel according to claim 1, characterized in that: The upper and lower ends of the drill rod (53) are both sleeved with sealing rings (55), and the sealing rings (55) are fixedly connected to the inner wall of the through pipe (1). A third channel (56) is opened in the middle of the inner cavity of the drill rod (53), and the third channel (56) is connected to the inner cavity of the second channel (15).

9. The anti-stuck drilling tool structure with a mud bypass channel according to claim 8, characterized in that: Four jet grooves (16) are provided on the surface of the drill bit (7), a nozzle (17) is provided in the middle of the inner cavity of the drill bit (7), the jet grooves (16) correspond to the positions of the second bypass hole (52), and the nozzle (17) is connected to the inner cavity of the third channel (56).

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