A high-strength sucker rod with anti-reverse buckling

By using a high-strength sucker rod with anti-reverse buckle, and employing designs such as inclined holes, guide vanes, and magnetic connections, the problem of loosening and reversal of the sucker rod connection structure under frequent loads is solved, achieving efficient flow guidance and stable connection, thus improving oil extraction efficiency and safety.

CN121088314BActive Publication Date: 2026-03-13FOUND PETROLEUM EQUIP CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2025-11-11
Publication Date
2026-03-13

AI Technical Summary

Technical Problem

The existing sucker rod connection structure has limited anti-reverse performance. The threaded connection is prone to loosening or reversal under frequent cyclic loads, which can cause the rod to detach, affecting mining efficiency and safety.

Method used

It adopts a high-strength sucker rod with anti-reverse buckle, which includes an anti-reverse mechanism, a guide mechanism, an adjustment drive mechanism and an internal cleaning mechanism. Through the cooperation of oblique holes, guide vanes, magnetic connection and spring, it ensures that the threaded connection remains tight during lifting or pressing, and prevents loosening.

Benefits of technology

It effectively prevents the oblique hole from becoming blocked, ensures smooth crude oil flow, improves oil pumping efficiency and system reliability, reduces maintenance needs, and guarantees the stability of the connection, preventing loosening and detachment.

✦ Generated by Eureka AI based on patent content.

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Abstract

This invention relates to the field of oil extraction technology and proposes a high-strength sucker rod with anti-reverse twisting, including an anti-reverse mechanism. The upper and lower ends of the anti-reverse mechanism are threadedly connected to a solid sucker rod. The upper and lower external ends of the anti-reverse mechanism are rotatably connected to guide mechanisms. An adjustment drive mechanism is located in the center of the anti-reverse mechanism, and the upper and lower ends of the adjustment drive mechanism are fixedly connected to an internal cleaning mechanism. After crude oil passes through the inclined groove, a rotational force is applied to the casing through the inclined hole. Because the threads at the upper and lower ends of the casing are in opposite directions, and because the inclination directions of moving block one and moving block two are opposite, the crude oil fluid between moving block two and the fixed block still applies a rotational force in the same direction as the lifting direction. This ensures that the threaded connection between the casing and the solid sucker rod becomes increasingly tight during both downward and upward movements, thereby achieving anti-reverse twisting between the casing and the solid sucker rod and ensuring connection stability.
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Description

Technical Field

[0001] This invention relates to the field of oil extraction technology, and in particular to a high-strength sucker rod with anti-reverse buckling. Background Technology

[0002] In oil extraction operations, solid sucker rods are the core components for transmitting power and lifting crude oil. They are formed by connecting multiple rod sections to create a sucker rod string, adapting to the needs of different extraction depths. The reliability of the connection between the rod sections directly affects extraction efficiency and operational safety. The inverted connection, as a key connection structure of the solid sucker rod, is mainly used to achieve detachable fixing of adjacent sucker rods. At the same time, it needs to transmit axial force and torque during the oil extraction process and ensure the structural stability of the sucker rod string during reciprocating motion. However, the anti-reverse performance of the connection structure is limited. Most of them can only achieve preliminary anti-loosening in a single force direction (such as lifting or pressing). Under frequent reciprocating loads, threaded connections are prone to loosening or even reversal, leading to the rod section detaching. Summary of the Invention

[0003] In view of the problems existing in the prior art, the purpose of the present invention is to provide a high-strength sucker rod with anti-reverse buckling to solve the problems mentioned in the background art.

[0004] To solve the above problems, the present invention adopts the following technical solution: a high-strength sucker rod with anti-reverse buckle, comprising an anti-reverse mechanism, wherein a solid sucker rod is threadedly connected to both the upper and lower ends of the anti-reverse mechanism, and a guide mechanism is rotatably connected to both the upper and lower ends of the anti-reverse mechanism. An adjustment drive mechanism is provided in the inner middle of the anti-reverse mechanism, and an inner cleaning mechanism is fixedly connected to both the upper and lower ends of the adjustment drive mechanism. The anti-reverse mechanism includes a housing, wherein oblique holes are evenly distributed at the upper and lower ends of the housing, and moving blocks I and II are alternately distributed on the outer periphery of the housing. A fixed block is provided between moving blocks I and moving blocks II. An opening is evenly provided in the middle of the housing, and a limit groove is evenly provided inside the opening. A connecting rod is slidably connected inside the opening, and a limit strip is evenly distributed on the outer periphery of the connecting rod. A limit ring is fixedly connected to the end of the connecting rod near the adjustment drive mechanism, and a spring is fixedly connected to the side of the limit ring away from the adjustment drive mechanism. U-shaped grooves are fixedly connected to the outer periphery of both the upper and lower ends of the housing.

[0005] Preferably, the threads at the upper and lower ends of the housing are in opposite directions, the inclination directions of the upper and lower oblique holes are in opposite directions, and the end of the connecting rod away from the adjustment drive mechanism is fixedly connected to the middle of the moving block one and the moving block two.

[0006] Preferably, both sides of the second movable block and the first movable block are slidably connected to the side of the adjacent fixed blocks that are close to each other, and the side of the fixed blocks that is close to the shell is fixedly connected to the outer periphery of the shell.

[0007] Preferably, the outer periphery of the first limiting strip is slidably connected to the inner periphery of the first limiting groove, the end of the spring away from the adjustment drive mechanism is fixedly connected to the middle of the inner side wall of the housing, and the tilting directions of the first moving block and the second moving block are opposite.

[0008] Preferably, the adjustment drive mechanism includes a rotating rod, a wave ring, and a limiting ring. Driving blades are fixedly connected to both the upper and lower ends of the rotating rod. A fixed seat is fixedly connected to the outer periphery of the middle part of the rotating rod. Magnetic blocks are evenly distributed around the outer periphery of the fixed seat. A rotating seat is rotatably connected to the outer periphery of the fixed seat. Magnetic blocks are evenly distributed around the inner periphery of the rotating seat. Connecting rods are evenly distributed around the outer periphery of the rotating seat. The end of each connecting rod away from the magnetic block is fixedly connected to the inside of the wave ring. A limiting rod is fixedly connected to the lower side of the protruding end of the outer periphery of the wave ring. Limiting openings are evenly distributed inside the limiting ring. The end of each limiting rod away from the wave ring is slidably connected to the inside of the limiting opening.

[0009] Preferably, the blades of the upper and lower drive blades are tilted in opposite directions, and the end of the connecting rod closest to the wave ring is in contact with the outer periphery of the wave ring.

[0010] Preferably, the guiding mechanism includes two arc-shaped openings, each with a rotating ring fixedly connected to the side of the arc-shaped opening near the housing, a liquid guiding groove evenly formed on the side of the arc-shaped opening near the oblique hole, guide vanes evenly distributed inside the arc-shaped opening, and scraper blades evenly distributed on the inner circumference of the side of the arc-shaped opening near the oblique hole.

[0011] Preferably, the inner circumference of the rotating ring is rotatably connected to the outer circumference of the upper and lower ends of the housing, the inclination directions of the upper and lower guide vanes are opposite, and the scraper blades are in contact with the outer circumference of the upper and lower ends of the housing on the side closest to the housing.

[0012] Preferably, the internal cleaning mechanism includes two bidirectional screws and two scraper rings. The ends of the bidirectional screws near the rotating rod are fixedly connected to the upper and lower ends of the rotating rod. The outer circumference of each bidirectional screw is threaded with a drive seat. The outer circumference of the drive seat is evenly distributed with connecting rods II. The ends of the connecting rods II away from the drive seat are fixedly connected to the outer circumference of the scraper rings. The outer circumference of the scraper rings is evenly provided with limiting grooves II. The interior of each limiting groove II is slidably connected with limiting strips II. The side of each limiting strip II away from the drive seat is fixedly connected to the upper and lower ends of the inner sidewall of the housing.

[0013] Preferably, the ends of the bidirectional screws away from the rotating rod are rotatably connected to the middle of the upper and lower inner ends of the housing, and the outer periphery of the scraper rings are slidably connected to the upper and lower inner sidewalls of the housing.

[0014] The high-strength sucker rod with anti-reverse buckle provided by this invention has the following advantages:

[0015] 1. By continuously wiping the outer surface of the inclined hole with a scraper, impurities in the crude oil are prevented from clogging the inclined hole. During the oil extraction process, the crude oil is collected through the arc-shaped opening, leaks out through the guide groove, hits the U-shaped groove, rebounds, and enters the upper part of the shell through the inclined hole, achieving efficient flow guidance. This allows the crude oil to enter the interior of the shell through the inclined hole. At the same time, the inclined design of the guide vane causes the arc-shaped opening to rotate as the crude oil flows, driving the scraper to continuously wipe the outer surface of the inclined hole, effectively preventing impurities from clogging the inclined hole, ensuring smooth crude oil flow, improving oil extraction efficiency and system reliability, and reducing maintenance requirements.

[0016] 2. The crude oil entering the casing, due to the inclined angle of the oblique hole, rotates and impacts the upper drive blade. The drive blade drives the rotating rod to rotate, and the magnetic block one on the outer periphery of the fixed seat and the magnetic block two on the inner periphery of the rotating seat attract each other. This, in turn, drives the wave ring to rotate through the connecting rod three. The convex surface of the wave ring rotates and connects with the connecting rod one connected to the moving block two, which in turn pushes all the outer surfaces of the moving blocks two to be flush with the outer surfaces of the fixed blocks. The inner surfaces of the wave ring rotate and fit against the connecting rod one connected to all the moving blocks one. Through the cooperation of the spring and the limit ring, all the moving blocks one retract, and an oblique groove appears between the oblique hole and the moving blocks one. After the crude oil passes through the oblique groove, it applies a rotational force to the casing through the oblique hole. Moreover, since the threads at the upper and lower ends of the casing are in opposite directions, this rotational force makes the threaded connection between the casing and the solid sucker rod increasingly tighter, thus preventing the anti-reverse mechanism and the solid sucker rod from becoming loose.

[0017] 3. The fixed seat and the rotating seat are magnetically connected by magnetic blocks one and two. With the limit rod and limit ring at the lower end, the wave ring continuously applies pressure to the connecting rod one of the moving block two during the lifting process, without interfering with the rotation of the rotating rod through the drive blade. Moreover, the continuous rotation of the rotating rod drives the bidirectional screw to operate. With the cooperation of the limit groove two and the limit strip two, the scraper ring is driven to move up and down through the drive seat and connecting rod two to clean the inside of the inclined hole, avoid blockage of the inclined hole, and ensure smooth crude oil flow and reliable operation of the overall mechanism.

[0018] 4. By using the guide vanes, oblique holes, and drive blades with opposite tilt directions, the rotating rod will rotate in the opposite direction, causing all moving blocks to extend and moving blocks to retract. At the same time, because moving blocks 1 and 2 are tilted in opposite directions, during the downward pressing of the anti-reverse component, the crude oil fluid between moving block 2 and the fixed block still applies a rotational force in the same direction as the upward lifting direction. This ensures that the shell is more tightly connected to the solid sucker rod threadedly, whether it is being pressed down or lifted up, thereby achieving anti-reverse connection between the shell and the solid sucker rod and ensuring connection stability. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 A frontal perspective three-dimensional schematic diagram of a high-strength sucker rod with inverted anti-reverse mechanism provided in this application;

[0021] Figure 2 One of the front partial three-dimensional schematic diagrams of a high-strength sucker rod with inverted anti-reverse mechanism provided in this application;

[0022] Figure 3 The second partial three-dimensional front view of a high-strength sucker rod with inverted anti-reverse mechanism provided in this application;

[0023] Figure 4 This application provides a front sectional perspective view of a high-strength sucker rod with anti-reverse buckling component.

[0024] Figure 5 This application provides a top sectional perspective view of a high-strength sucker rod with anti-reverse buckling component.

[0025] Figure 6 A top-view sectional view of a partial three-dimensional schematic diagram of a high-strength sucker rod with anti-reverse buckling for this application;

[0026] Figure 7 A partial three-dimensional top-view cross-sectional view of a high-strength sucker rod with anti-reverse buckling for this application;

[0027] Figure 8 This application provides a schematic diagram of the internal and external crude oil flow direction of a high-strength sucker rod with anti-reverse buckling when it is lifted.

[0028] In the diagram: 1. Anti-reverse mechanism; 11. Housing; 12. Angled hole; 13. Fixed block; 14. Moving block one; 15. Moving block two; 16. Opening; 17. Limiting groove one; 18. Connecting rod one; 19. Limiting strip one; 110. Limiting ring; 111. Spring; 112. U-shaped groove; 2. Guide mechanism; 21. Arc-shaped opening; 22. Liquid guiding groove; 23. Guide vane; 24. Scraper; 25. Rotary ring; 3. Internal cleaning Mechanism; 31. Bidirectional screw; 32. Drive seat; 33. Connecting rod II; 34. Scraper ring; 35. Limiting groove II; 36. Limiting strip II; 4. Adjustment drive mechanism; 41. Rotating rod; 42. Fixed seat; 43. Magnetic block I; 44. Rotating seat; 45. Magnetic block II; 46. Connecting rod III; 47. Wave ring; 48. Limiting rod; 49. Limiting ring; 410. Limiting port; 411. Drive blade; 5. Solid sucker rod. Detailed Implementation

[0029] The specific embodiments of the present invention will be further described in detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of the invention.

[0030] like Figures 1-8 As shown, this embodiment proposes a high-strength sucker rod with anti-reverse buckle, including an anti-reverse mechanism 1. A solid sucker rod 5 is threadedly connected to both the upper and lower ends of the anti-reverse mechanism 1. A guide mechanism 2 is rotatably connected to both the upper and lower outer ends of the anti-reverse mechanism 1. An adjustment drive mechanism 4 is provided in the inner center of the anti-reverse mechanism 1. An inner cleaning mechanism 3 is fixedly connected to both the upper and lower ends of the adjustment drive mechanism 4. The anti-reverse mechanism 1 includes a housing 11. Oblique holes 12 are evenly distributed at the upper and lower ends of the housing 11. Moving blocks 14 and 15 are alternately distributed on the outer periphery of the housing 11. A fixed block 13 is provided between the moving block 14 and the moving block 2 15. An opening 16 is evenly provided in the middle of the housing 11. A limit groove 17 is evenly provided inside the opening 16. A connecting rod 18 is slidably connected inside the opening 16. A limit strip 19 is evenly distributed on the outer periphery of the connecting rod 18. A limit ring 110 is fixedly connected to the end of the connecting rod 18 near the adjustment drive mechanism 4. A spring 111 is fixedly connected to the side of the limit ring 110 away from the adjustment drive mechanism 4. U-shaped grooves 112 are fixedly connected to the outer periphery of the upper and lower ends of the housing 11.

[0031] In this embodiment, the threads at the upper and lower ends of the housing 11 are in opposite directions, the inclination directions of the upper and lower oblique holes 12 are in opposite directions, and the end of the connecting rod 18 away from the adjustment drive mechanism 4 is fixedly connected to the middle of the moving block 14 and the moving block 2 15.

[0032] In this embodiment, both sides of the second movable block 15 and the first movable block 14 are slidably connected to the side of the adjacent fixed block 13 that is close to each other, and the side of the fixed block 13 that is close to the housing 11 is fixedly connected to the outer periphery of the housing 11.

[0033] In this embodiment, the outer periphery of the limiting strip 19 is slidably connected to the inner periphery of the limiting groove 17, and the end of the spring 111 away from the adjustment drive mechanism 4 is fixedly connected to the middle of the inner side wall of the housing 11. The tilting directions of the moving block 14 and the moving block 2 15 are opposite.

[0034] In this embodiment, the guide mechanism 2 includes two arc-shaped openings 21. A rotating ring 25 is fixedly connected to the side of the arc-shaped opening 21 near the housing 11. A liquid guiding groove 22 is uniformly opened on the side of the arc-shaped opening 21 near the inclined hole 12. Guide vanes 23 are uniformly distributed inside the arc-shaped opening 21. Scrapers 24 are uniformly distributed on the inner circumference of the side of the arc-shaped opening 21 near the inclined hole 12.

[0035] In this embodiment, the inner circumference of the rotating ring 25 is rotatably connected to the outer circumference of the upper and lower ends of the housing 11, the tilting directions of the upper and lower guide vanes 23 are opposite, and the side of the scraper 24 close to the housing 11 is in contact with the outer circumference of the upper and lower ends of the housing 11.

[0036] Specifically, after all the solid sucker rods 5 are connected by the anti-reverse coupling, they are lowered into the oil well. When the pumping unit lifts the solid sucker rods 5 to pump oil, the crude oil remaining in the well is collected through the upper arc-shaped opening 21, leaks out through the guide channel 22, and hits the U-shaped channel 112. The rebound from the U-shaped channel 112 causes the crude oil to enter the upper inner part of the casing 11 through the inclined hole 12. At the same time, the guide vanes 23, which are evenly distributed inside the arc-shaped opening 21, rotate as the crude oil leaks out through the guide channel 22 due to the certain inclination angle of the guide vanes 23. The scraper 24 continuously wipes the inclined hole 112. The outer surface of the guide vane 23 is designed to prevent impurities in the crude oil from clogging the inclined hole 12. During the oil extraction process, the crude oil is collected by the arc-shaped opening 21, leaks out through the guide groove 22, hits the U-shaped groove 112, rebounds, and enters the upper part of the shell 11 through the inclined hole 12, achieving efficient flow guidance. This allows the crude oil to enter the interior of the shell 11 through the inclined hole 12. At the same time, the inclined design of the guide vane 23 causes the arc-shaped opening 21 to rotate when the crude oil flows, driving the scraper 24 to continuously wipe the outer surface of the inclined hole 12, effectively preventing impurities from clogging the inclined hole 12, ensuring smooth crude oil flow, improving oil extraction efficiency and system reliability, and reducing maintenance requirements.

[0037] In this embodiment, the adjustment drive mechanism 4 includes a rotating rod 41, a wave ring 47, and a limiting ring 49. The upper and lower ends of the rotating rod 41 are fixedly connected to drive blades 411. The middle outer periphery of the rotating rod 41 is fixedly connected to a fixed seat 42. Magnetic blocks 43 are evenly distributed on the outer periphery of the fixed seat 42. A rotating seat 44 is rotatably connected to the outer periphery of the fixed seat 42. Magnetic blocks 45 are evenly distributed on the inner periphery of the rotating seat 44. Connecting rods 46 are evenly distributed on the outer periphery of the rotating seat 44. The end of the connecting rod 46 away from the magnetic block 45 is fixedly connected to the inside of the wave ring 47. A limiting rod 48 is fixedly connected to the lower side of the protruding end on the outer periphery of the wave ring 47. Limiting openings 410 are evenly opened inside the limiting ring 49. The end of the limiting rod 48 away from the wave ring 47 is slidably connected to the inside of the limiting opening 410.

[0038] In this embodiment, the blades of the upper and lower drive blades 411 are tilted in opposite directions, and the end of the connecting rod 18 near the wave ring 47 is in contact with the outer periphery of the wave ring 47.

[0039] Specifically, the crude oil entering the housing 11, due to the inclination angle of the inclined hole 12, will rotate and impact the upper drive blade 411. The drive blade 411 drives the rotating rod 41 to rotate, and the magnetic block 43 on the outer periphery of the fixed seat 42 and the magnetic block 45 on the inner periphery of the rotating seat 44 magnetically attract each other. This, in turn, drives the wave ring 47 to rotate through the connecting rod 46, causing the convex surface of the wave ring 47 to rotate and contact the connecting rod 18 connected to the moving block 15. This, in turn, pushes all the outer surfaces of the moving blocks 15 to be flush with the outer surfaces of the fixed blocks 13, while the wave ring... The inner side of 47 rotates and engages with the connecting rod 18 connected to all moving blocks 14. Through the cooperation of spring 111 and limit ring 110, all moving blocks 14 retract, and a groove appears between the inclined hole 12 and the moving blocks 14. After the crude oil passes through the groove, it will apply a rotational force to the housing 11 through the inclined hole 12. Moreover, since the threads at the upper and lower ends of the housing 11 are in opposite directions, this rotational force will make the threaded connection between the housing 11 and the solid sucker rod 5 increasingly tight, so that there will be no loosening between the anti-reverse mechanism 1 and the solid sucker rod 5.

[0040] In this embodiment, the internal cleaning mechanism 3 includes two bidirectional screws 31 and two scraper rings 34. The ends of the bidirectional screws 31 near the rotating rod 41 are fixedly connected to the upper and lower ends of the rotating rod 41. The outer periphery of the bidirectional screws 31 is threadedly connected to a drive seat 32. The outer periphery of the drive seat 32 is evenly distributed with connecting rods 33. The ends of the connecting rods 33 away from the drive seat 32 are fixedly connected to the outer periphery of the scraper rings 34. The outer periphery of the scraper rings 34 is evenly provided with limiting grooves 35. The inside of the limiting grooves 35 is slidably connected with limiting strips 36. The side of the limiting strips 36 away from the drive seat 32 is fixedly connected to the upper and lower ends of the inner sidewall of the housing 11.

[0041] In this embodiment, the ends of the bidirectional screws 31 away from the rotating rods 41 are rotatably connected to the middle of the upper and lower inner ends of the housing 11, and the outer periphery of the scraper rings 34 are slidably connected to the upper and lower inner sidewalls of the housing 11.

[0042] Specifically, the fixed seat 42 and the rotating seat 44 are magnetically connected by magnetic blocks 43 and 45. Through the cooperation of the limiting rod 48 at the lower end and the limiting port 410 in the limiting ring 49, the wave ring 47 continuously applies pressure to the connecting rod 18 connected to the moving block 15 during the lifting process, without affecting the rotation of the rotating rod 41 via the driving blade 411. As the rotating rod 41 continues to rotate, it continuously drives the bidirectional screw 31 to rotate. Through the cooperation of the limiting groove 35 and the limiting strip 36, the bidirectional screw 31, during its continuous rotation, drives the scraper ring 34 to move up and down through the cooperation of the driving seat 32 and the connecting rod 33, thus moving the scraper ring 34 against the inclined hole 12. The inner side of the hole is cleaned by magnetic connection between the fixed seat 42 and the rotating seat 44 through magnetic block 43 and magnetic block 45. With the limit rod 48 and the limit ring 49 at the lower end, the wave ring 47 continuously applies pressure to the connecting rod 18 of the moving block 15 during the lifting process, without interfering with the rotation of the rotating rod 41 through the drive blade 411. Moreover, the rotating rod 41 continuously rotates to drive the bidirectional screw 31 to operate. With the cooperation of the limit groove 35 and the limit strip 36, the scraper ring 34 is driven to move up and down through the drive seat 32 and the connecting rod 33 to clean the inner side of the inclined hole 12, avoid blockage of the inclined hole 12, and ensure smooth crude oil flow and reliable operation of the overall mechanism.

[0043] Working principle: First, all the solid sucker rods 5 are connected by the anti-reverse coupling and lowered into the oil well. When the pumping unit lifts the solid sucker rods 5 to pump oil, the crude oil remaining in the well is collected through the upper arc-shaped opening 21 and leaks out through the guide channel 22, hitting the U-shaped channel 112. The rebound from the U-shaped channel 112 causes the crude oil to enter the upper inner part of the casing 11 through the inclined hole 12. At the same time, the guide vanes 23, which are evenly distributed inside the arc-shaped opening 21, rotate as the crude oil leaks out through the guide channel 22 due to their tilt angle. The scraper 24 continuously wipes the outer side of the inclined hole 12 to prevent impurities in the crude oil from blocking the inclined hole 12. During the lifting and pumping process, the crude oil is collected by the arc-shaped opening 21 and flows through the guide channel 22. After leaking out of the groove 22, it impacts the U-shaped groove 112, bounces back, and enters the upper part of the housing 11 through the inclined hole 12, achieving efficient flow guidance. This allows crude oil to enter the interior of the housing 11 through the inclined hole 12. At the same time, the inclined design of the guide vane 23 causes the arc-shaped opening 21 to rotate as the crude oil flows, driving the scraper 24 to continuously wipe the outer side of the inclined hole 12, effectively preventing debris from clogging the inclined hole 12, ensuring smooth crude oil flow, improving oil extraction efficiency and system reliability, and reducing maintenance requirements. Due to the inclined angle of the inclined hole 12, the crude oil entering the housing 11 rotates and impacts the upper drive vane 411. The drive vane 411 drives the rotating rod 41 to rotate, and the two magnetic blocks 43 on the outer periphery of the fixed seat 42 and the inner periphery of the rotating seat 44 magnetically attract each other. Then, the connecting rod 46 drives the wave ring 47 to rotate, causing the convex surface of the wave ring 47 to rotate and contact the connecting rod 18 connected to the moving block 15. This pushes the outer surfaces of all the moving blocks 15 to be flush with the outer surfaces of the fixed block 13, while the inner surfaces of the wave ring 47 rotate and fit against the connecting rod 18 connected to all the moving blocks 14. Through the cooperation of the spring 111 and the limiting ring 110, all the moving blocks 14 retract, creating a groove between the inclined hole 12 and the moving blocks 14. After the crude oil passes through the groove, it applies a rotational force to the housing 11 through the inclined hole 12. Moreover, since the threads at the upper and lower ends of the housing 11 are in opposite directions, this rotational force makes the threaded connection between the housing 11 and the solid sucker rod 5 increasingly tight, thereby preventing reverse flow. There will be no loosening between the rotating mechanism 1 and the solid sucker rod 5. The fixed seat 42 and the rotating seat 44 are magnetically connected by magnetic blocks 43 and 45. Through the cooperation of the limiting rod 48 at the lower end and the limiting port 410 in the limiting ring 49, the wave ring 47 continuously applies pressure to the connecting rod 18 connected to the moving block 15 during the lifting process, without affecting the rotation of the rotating rod 41 through the drive blade 411. During the continuous rotation of the rotating rod 41, it will continuously drive the bidirectional screw 31 to rotate. Through the cooperation of the limiting groove 35 and the limiting strip 36, during the continuous rotation of the bidirectional screw 31, through the cooperation of the drive seat 32 and the connecting rod 33, the scraper ring 34 is driven to move up and down to clean the inside of the inclined hole 12.The fixed seat 42 and the rotating seat 44 are magnetically connected by magnetic blocks 43 and 45. Combined with the limiting opening 410 of the lower limiting rod 48 and the limiting ring 49, during the lifting process, the wave ring 47 continuously applies pressure to the connecting rod 18 of the moving block 15 without interfering with the rotation of the rotating rod 41 via the drive blade 411. Furthermore, the continuous rotation of the rotating rod 41 drives the bidirectional screw 31 to operate. With the cooperation of the limiting groove 35 and the limiting strip 36, the scraper ring 34 is driven up and down by the drive seat 32 and the connecting rod 33, achieving cleaning of the inner side of the inclined hole 12, preventing blockage, ensuring smooth crude oil flow and reliable operation of the overall mechanism. Conversely, when the anti-reverse component is pressed down... During the process, because the upper and lower guide vanes 23, the inclined holes 12, and the drive blades 411 are tilted in opposite directions, the rotating rod 41 will rotate in the opposite direction, causing all moving blocks 14 to extend and moving blocks 15 to retract. Simultaneously, because moving blocks 14 and 15 are tilted in opposite directions, during the downward pressing of the anti-reverse component, the crude oil fluid between moving blocks 15 and the fixed block 13 still applies a rotational force in the same direction as the upward lifting direction. This ensures that the housing 11 maintains a tighter threaded connection with the solid sucker rod 5 during both downward and upward pressing, thereby achieving anti-reverse connection between the housing 11 and the solid sucker rod 5 and ensuring connection stability.

[0044] The above embodiments are for illustrative purposes only and are not intended to limit the scope of the invention. Although the invention has been described in detail with reference to the embodiments, those skilled in the art should understand that various combinations, modifications, or equivalent substitutions of the technical solutions of the invention do not depart from the spirit and scope of the invention and should be covered within the scope of the claims of the invention.

Claims

1. A high-strength sucker rod with reverse prevention and reverse prevention, comprising a reverse prevention mechanism (1), characterized in that, The upper and lower ends of the anti-reverse mechanism (1) are threadedly connected with solid sucker rods (5), the upper and lower ends of the outer part of the anti-reverse mechanism (1) are rotationally connected with guide mechanisms (2), the middle part of the anti-reverse mechanism (1) is provided with an adjusting driving mechanism (4), the upper and lower ends of the adjusting driving mechanism (4) are fixedly connected with inner cleaning mechanisms (3), the anti-reverse mechanism (1) comprises a shell (11), the upper and lower ends of the shell (11) are uniformly distributed with inclined holes (12), the outer periphery of the shell (11) is alternately distributed with moving blocks one (14) and moving blocks two (15), the moving blocks one (14) and the moving blocks two (15) are both provided with fixed blocks (13), the middle part of the shell (11) is uniformly provided with an opening (16), the inside of the opening (16) is uniformly provided with a limiting groove one (17), the inside of the opening (16) is slidably connected with a connecting rod one (18), the outer periphery of the connecting rod one (18) is uniformly distributed with limiting strips one (19), one end of the connecting rod one (18) close to the adjusting driving mechanism (4) is fixedly connected with a limiting ring (110), one side of the limiting ring (110) away from the adjusting driving mechanism (4) is fixedly connected with a spring (111), the outer periphery of the upper and lower ends of the shell (11) is fixedly connected with U-shaped grooves (112), the thread directions of the upper and lower ends of the shell (11) are opposite, the inclined directions of the inclined holes (12) are opposite, the adjusting driving mechanism (4) comprises a rotating rod (41), a wave ring (47) and a limiting ring (49), the upper and lower ends of the rotating rod (41) are fixedly connected with driving blades (411), the blade inclined directions of the upper and lower driving blades (411) are opposite, one end of the connecting rod one (18) close to the wave ring (47) is attached to the outer periphery of the wave ring (47).

2. The high-strength oil-sucker rod with reverse rotation prevention according to claim 1, characterized in that, One end of the connecting rod one (18) away from the adjusting driving mechanism (4) is fixedly connected to the middle part of the moving blocks one (14) and the moving blocks two (15).

3. The high-strength oil-sucker rod with reverse rotation prevention according to claim 1, characterized in that, The two sides of the moving blocks two (15) and the moving blocks one (14) are slidably connected to the sides of the adjacent fixed blocks (13) close to each other, one side of the fixed blocks (13) close to the shell (11) is fixedly connected to the outer periphery of the shell (11).

4. The high-strength oil-sucker rod with reverse rotation prevention according to claim 1, characterized in that, The outer periphery of the limiting strips one (19) is slidably connected to the inner periphery of the limiting groove one (17), one end of the spring (111) away from the adjusting driving mechanism (4) is fixedly connected to the middle part of the inner side wall of the shell (11), the inclined directions of the moving blocks one (14) and the moving blocks two (15) are opposite.

5. The high strength oil well sucker rod with reverse rotation prevention according to claim 1, characterized in that, The middle part of the rotating rod (41) is fixedly connected with a fixed seat (42), the outer periphery of the fixed seat (42) is uniformly provided with a magnetic block I (43), the outer periphery of the fixed seat (42) is rotatably connected with a rotating seat (44), the inner periphery of the rotating seat (44) is uniformly provided with a magnetic block II (45), the outer periphery of the rotating seat (44) is uniformly provided with a connecting rod III (46), one end of the connecting rod III (46) away from the magnetic block II (45) is fixedly connected in the inner part of a wave ring (47), the outer periphery convex end lower side of the wave ring (47) is fixedly connected with a limiting rod (48), the inner part of the limiting ring (49) is uniformly provided with a limiting opening (410), and one end of the limiting rod (48) away from the wave ring (47) is slidably connected in the inner part of the limiting opening (410).

6. A high strength sucker rod with reverse turn prevention according to claim 5, characterized in that, The guiding mechanism (2) comprises two arc-shaped openings (21), one side of the arc-shaped opening (21) close to the shell (11) is fixedly connected with a rotating ring (25), one side of the arc-shaped opening (21) close to the inclined hole (12) is uniformly provided with a liquid guide groove (22), the inner part of the arc-shaped opening (21) is uniformly provided with a guide vane (23), and the inner periphery of one side of the arc-shaped opening (21) close to the inclined hole (12) is uniformly provided with a scraping piece (24).

7. A high strength oil well sucker rod with reverse rotation prevention according to claim 6, characterized in that, The inner periphery of the rotating ring (25) is rotatably connected with the upper and lower end outer peripheries of the shell (11), the inclination directions of the guide vanes (23) are opposite, and the side of the scraping piece (24) close to the shell (11) is attached to the upper and lower end outer peripheries of the shell (11).

8. The high strength oil well rod with reverse rotation prevention according to claim 5, characterized in that, The inner cleaning mechanism (3) comprises two bidirectional screw rods (31) and two scraping rings (34), one end of the bidirectional screw rod (31) close to the rotating rod (41) is fixedly connected with the upper and lower ends of the rotating rod (41), the outer periphery of the bidirectional screw rod (31) is threadedly connected with a driving seat (32), the outer periphery of the driving seat (32) is uniformly provided with a connecting rod II (33), one end of the connecting rod II (33) away from the driving seat (32) is fixedly connected with the outer periphery of the scraping ring (34), the outer periphery of the scraping ring (34) is uniformly provided with a limiting groove II (35), the inner part of the limiting groove II (35) is slidably connected with a limiting strip II (36), and one side of the limiting strip II (36) away from the driving seat (32) is fixedly connected with the inner side wall upper and lower ends of the shell (11).

9. A high strength sucker rod with reverse turn prevention according to claim 8, characterized in that, The outer periphery of the scraping ring (34) is slidably connected with the inner side wall upper and lower ends of the shell (11).

Citation Information

Patent Citations

  • Sucker rod back-off anti-reversion device

    CN112324363A

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    CN117662025A