Carbon fiber reinforced communication sucker rod

Abstract

A kind of carbon fiber reinforced communication sucker rod belongs to sucker rod technical field, to solve the problem that carbon fiber sucker rod is prone to bending deformation, leading to loose connection, secondly, the connecting part between carbon fiber sucker rod is prone to be attached to connecting part by downhole sand, wax or metal debris, prone to accumulation in connecting part and cause abrasion, the application includes first carbon fiber sucker rod and second carbon fiber sucker rod threadedly connected with one end of first carbon fiber sucker rod, first carbon fiber sucker rod and second carbon fiber sucker rod are internally installed with communication structure, first carbon fiber sucker rod one end is fixedly installed with fixed sleeve, fixed sleeve one side is rotatably connected with driving seat, fixed sleeve is internally slidably connected with first ratchet plate, first ratchet plate is threadedly connected with driving seat, the present application prevents causing thread pre-tightening force attenuation, leading to loose connection, barrier sand, wax and other medium invasion first carbon fiber sucker rod and second carbon fiber sucker rod connecting part.

Description

Technical Field

[0001] This invention relates to the field of sucker rod technology, specifically a carbon fiber reinforced communication sucker rod. Background Technology

[0002] In the oil extraction field, traditional steel sucker rods, due to their heavy weight, poor corrosion resistance, and inability to integrate monitoring functions, are no longer sufficient to meet the development needs of deep wells, ultra-deep wells, and smart oilfields. Statistics show that the suspension load of steel sucker rods in wells deeper than 3000 meters exceeds 200kN, with an average lifespan of only 6-12 months. Meanwhile, the digital transformation of oilfields requires sucker rods to have real-time data transmission capabilities, but traditional rod strings require additional cable laying or rely on wireless transmission, which suffers from signal attenuation and high power consumption. Therefore, carbon fiber sucker rods, with their high strength, lightweight, and corrosion resistance, have been applied in some oilfields. The length of a single carbon fiber sucker rod is typically 8-10 meters (some can reach 12 meters), while oil well depths can reach hundreds or even thousands of meters (such as deep wells exceeding 3000 meters). Therefore, multiple carbon fiber sucker rods must be connected end-to-end to form a continuous rod string extending from the surface to the downhole pump location.

[0003] Currently, carbon fiber reinforced communication sucker rods are subject to resistance from well fluid viscosity, tubing wall friction, and downhole obstacles (such as wax deposits and sand) when moving within the wellbore. When the resistance is high, the carbon fiber sucker rod is prone to bending deformation. This bending causes the connection between the two carbon fiber sucker rods to bear additional bending moment and shear force, resulting in relative rotation or axial displacement of the two carbon fiber sucker rods. This leads to a decrease in thread preload, causing the connection to loosen. Long-term operation can easily lead to joint breakage and carbon fiber sucker rod string detachment accidents. Secondly, when the carbon fiber sucker rods move up and down, the connection between the carbon fiber sucker rods is easily affected by downhole sand, wax, or metal debris adhering to the connection. This accumulation at the connection can cause wear, increase the thread clearance, and make it more prone to axial loosening, resulting in a decrease in connection strength.

[0004] To address the above issues, a carbon fiber reinforced communication sucker rod is proposed. Summary of the Invention

[0005] The purpose of this invention is to provide a carbon fiber reinforced communication sucker rod. Using this device, the problem of carbon fiber sucker rods being prone to bending deformation, causing relative rotation or axial displacement between two carbon fiber sucker rods, which in turn leads to a decrease in thread preload and loosening of the connection, is solved. Furthermore, the connection between carbon fiber sucker rods is easily affected by downhole sand, wax, or metal debris adhering to the connection, which can easily accumulate at the connection and cause wear, resulting in a decrease in connection strength.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] A carbon fiber reinforced communication sucker rod includes a first carbon fiber sucker rod and a second carbon fiber sucker rod threaded to one end of the first carbon fiber sucker rod. Both the first and second carbon fiber sucker rods have communication structures installed inside. A fixed sleeve is fixedly installed at one end of the first carbon fiber sucker rod. A drive seat is rotatably connected to one side of the fixed sleeve. A first ratchet plate is slidably connected inside the fixed sleeve and threadedly connected to the drive seat. An elastic sealing seat is fixedly installed on the surface of the second carbon fiber sucker rod and contacts the fixed sleeve. A second ratchet plate is installed on one side of the elastic sealing seat and engages with the first ratchet plate.

[0008] Furthermore, a connector is fixedly installed at one end of the first carbon fiber sucker rod, and the connector is threadedly connected to the second carbon fiber sucker rod, so that the first carbon fiber sucker rod can be connected to the second carbon fiber sucker rod through the connector.

[0009] Furthermore, a connecting rod is slidably connected inside the connector, and a gear plate is fixedly installed at one end of the connecting rod. The gear plate is slidably connected to the connector. A fixing plate is fixedly installed inside one end of the first carbon fiber sucker rod, and a connecting rope is fixedly installed on one side of the fixing plate. The connecting rope is slidably connected to the first carbon fiber sucker rod, and a locking block is fixedly installed at one end of the connecting rope. The locking block is rotatably engaged with the connector.

[0010] Furthermore, a strip groove is provided inside one end of the connector, and an arc groove is provided inside the other end of the connector. The arc groove is connected to the strip groove, and a limit groove is provided on one side of the arc groove.

[0011] Furthermore, the locking block includes a sliding cylinder and arc-shaped blocks fixed on both sides of the sliding cylinder. The sliding cylinder is slidably connected to the connecting rod, and the arc-shaped blocks are in contact with the limiting groove.

[0012] Furthermore, a plum blossom groove is provided at one end of the connecting rod.

[0013] Furthermore, a threaded groove is provided inside one end of the second carbon fiber sucker rod, and the connector is threadedly connected to the threaded groove.

[0014] Furthermore, the drive seat includes a rotating plate and two screw plates fixed on one side of the rotating plate. Both the rotating plate and the screw plates are slidably connected to the fixed sleeve, and both screw plates are threadedly connected to the first ratchet plate.

[0015] Furthermore, sliders are fixedly installed on both sides of the first ratchet plate, and the sliders are slidably connected to the inner wall of the fixed sleeve.

[0016] Furthermore, the elastic sealing seat includes a circular frame plate and several springs fixed inside the circular frame plate, the second ratchet plate is slidably connected to the circular frame plate, and the springs are fixedly connected to the second ratchet plate.

[0017] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0018] Firstly, the tight engagement of the first and second ratchet plates restricts the relative rotation of the first and second carbon fiber sucker rods, achieving a one-way locking characteristic. This prevents the first and second carbon fiber sucker rods from rotating, thus preventing the thread preload from weakening and causing the connection to loosen. The fixed sleeve then wraps around the connection between the first and second carbon fiber sucker rods, dispersing concentrated stress over a larger area and preventing the first carbon fiber sucker rod from fracturing due to localized overload, primarily due to brittle fracture. At this point, the elastic sealing seat and the fixed sleeve are in close contact, creating a contact sealing effect and forming a physical barrier to prevent sand, wax, and other media from entering the connection between the first and second carbon fiber sucker rods. Rotating the drive seat moves the first ratchet plate downwards until it separates from the second ratchet plate, releasing the restriction and facilitating the separation of the first and second carbon fiber sucker rods. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0020] Figure 2 This is a schematic diagram of the first carbon fiber sucker rod structure of the present invention;

[0021] Figure 3 For the present invention Figure 2 Schematic diagram of the structure at point A in the middle;

[0022] Figure 4 This is a schematic diagram of the second carbon fiber sucker rod structure of the present invention;

[0023] Figure 5 This is a schematic diagram of the gear plate structure of the present invention;

[0024] Figure 6 This is a schematic diagram of the connector structure of the present invention;

[0025] Figure 7 This is a schematic diagram of the card block structure of the present invention;

[0026] Figure 8 This is a schematic diagram of the connecting rod structure of the present invention;

[0027] Figure 9 This is a schematic diagram of the first ratchet plate structure of the present invention;

[0028] Figure 10 This is a schematic diagram of the threaded groove structure of the present invention;

[0029] Figure 11 This is a schematic diagram of the drive seat structure of the present invention;

[0030] Figure 12 This is a schematic diagram of the elastic sealing seat structure of the present invention.

[0031] In the diagram: 1. First carbon fiber sucker rod; 11. Connector; 111. Strip groove; 112. Arc groove; 113. Limiting groove; 12. Connecting rod; 13. Gear plate; 14. Fixing disc; 15. Connecting rope; 16. Locking block; 161. Slide cylinder; 162. Arc block; 17. Plum blossom groove; 2. Second carbon fiber sucker rod; 21. Threaded groove; 3. Communication structure; 4. Fixing sleeve; 5. Drive seat; 51. Rotating plate; 52. Screw plate; 6. First ratchet plate; 61. Slider; 7. Elastic sealing seat; 71. Circular frame plate; 72. Spring; 8. Second ratchet plate. Detailed Implementation

[0032] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0033] To address the technical problem of relative rotation or axial displacement between the first carbon fiber sucker rod 1 and the second carbon fiber sucker rod 2, leading to a decrease in thread preload, loosening of the connection, and easy adhesion and accumulation of sand, wax, or metal debris at the connection point, causing wear and reducing connection strength, such as... Figures 1-2 , Figure 5 and Figures 9-12 As shown, the following preferred technical solutions are provided:

[0034] A carbon fiber reinforced communication sucker rod includes a first carbon fiber sucker rod 1 and a second carbon fiber sucker rod 2 threadedly connected to one end of the first carbon fiber sucker rod 1. Typically, the first carbon fiber sucker rod 1 and the second carbon fiber sucker rod 2 are connected end to end to form a continuous rod column extending from the surface to the downhole pump position. Both the first carbon fiber sucker rod 1 and the second carbon fiber sucker rod 2 are equipped with a communication structure 3. Specifically, the communication structure 3 is achieved by placing an electric heating tape in the center of the first carbon fiber sucker rod 1 and the second carbon fiber sucker rod 2, with optical fibers wrapped around the electric heating tape. Using optical fibers as a data transmission medium, communication between the surface and the well can be realized, thereby enabling the first carbon fiber sucker rod 1 and the second carbon fiber sucker rod 2 to have communication functions and transmit downhole pressure, temperature and other parameters to the surface. The first carbon fiber sucker rod 1 and the second carbon fiber sucker rod 2, which are equipped with communication functions, can provide support for online continuous monitoring of oil well production data and reservoir dynamics, which helps to improve the efficiency and management level of oilfield production. A fixing sleeve 4 is fixedly installed at one end of the first carbon fiber sucker rod 1. Due to the geometric change, there is significant stress concentration at the threaded connection of the first carbon fiber sucker rod 1 and the second carbon fiber sucker rod 2. The fixing sleeve 4 disperses the concentrated stress to a larger area by wrapping the threaded section, thus avoiding the fracture of the first carbon fiber sucker rod 1 caused by local overload, which is mainly brittle fracture.

[0035] The first carbon fiber sucker rod 1 and the second carbon fiber sucker rod 2 do not require drilling during use. The main function of the rod formed by multiple first carbon fiber sucker rods 1 and second carbon fiber sucker rods 2 is to transmit the power of the pumping unit to the downhole pump. Through reciprocating motion, the piston inside the pump barrel is driven, thereby pumping crude oil from the bottom of the well to the surface. It connects the pumping unit and the pump and is a "transmission component," not a tool for "drilling into the formation." Drilling into the formation is usually done by drilling equipment such as drill bits and drill pipes, with the purpose of creating a wellbore; while the rod formed by multiple first carbon fiber sucker rods 1 and second carbon fiber sucker rods 2 is used when the wellbore has been formed and oil production is needed. Their functions are completely different.

[0036] The motor of the oil pump drives the crank to rotate, which in turn causes the donkey head to move up and down through the connecting rod and walking beam. This, in turn, pulls the rod formed by the polished rod and multiple first carbon fiber sucker rods 1 and second carbon fiber sucker rods 2, thereby driving the plunger of the oil pump to work.

[0037] The column formed by multiple first carbon fiber sucker rods 1 and second carbon fiber sucker rods 2 is equivalent to a "power bridge". Its lower end is connected to the pump plunger and its upper end is connected to the pumping unit head. Through mechanical connection, a complete oil production transmission system is formed to realize the extraction of crude oil from the bottom of the well to the surface.

[0038] A drive seat 5 is rotatably connected to one side of the fixed sleeve 4. A first ratchet plate 6 is slidably connected inside the fixed sleeve 4. The first ratchet plate 6 is threadedly connected to the drive seat 5. The rotation of the drive seat 5 can drive the first ratchet plate 6 to move. An elastic sealing seat 7 is fixedly installed on the surface of the second carbon fiber sucker rod 2. The elastic sealing seat 7 is in contact with the fixed sleeve 4. The contact sealing design between the elastic sealing seat 7 and the fixed sleeve 4 has the core function of forming a physical barrier between the elastic sealing seat 7 and the fixed sleeve 4 to prevent sand particles, wax and other media from entering the connection between the first carbon fiber sucker rod 1 and the second carbon fiber sucker rod 2. A second ratchet plate 8 is installed on one side of the elastic sealing seat 7. The second ratchet plate 8 is meshed with the first ratchet plate 6. The mutual meshing of the first ratchet plate 6 and the second ratchet plate 8 can play a role in preventing rotation. Its core principle is to use the one-way locking characteristic of the first ratchet plate 6 and the second ratchet plate 8 to realize the anti-rotation function of the first carbon fiber sucker rod 1 and the second carbon fiber sucker rod 2, so as to prevent the connection from becoming loose.

[0039] First, insert one end of the second carbon fiber sucker rod 2 into the inside of the fixed sleeve 4. Then, rotate the second carbon fiber sucker rod 2 to connect it to one end of the first carbon fiber sucker rod 1 via a thread. At the same time, the second ratchet plate 8 and the first ratchet plate 6 come into contact with each other. When the second carbon fiber sucker rod 2 rotates, the inclined tooth surface of the second ratchet plate 8 comes into contact with the inclined tooth surface of the first ratchet plate 6. Therefore, when rotating, the inclined tooth surface of the first ratchet plate 6 will push the second ratchet plate 8 to move upward and exert a squeezing effect on the elastic sealing seat 7 until the second carbon fiber sucker rod 2 and the first carbon fiber sucker rod 1 are tightly connected. Therefore, through the tight meshing of the first ratchet plate 6 and the second ratchet plate 8, the relative rotation of the first carbon fiber sucker rod 1 and the second carbon fiber sucker rod 2 is restricted, realizing the one-way locking characteristic. This can realize the anti-rotation function of the first carbon fiber sucker rod 1 and the second carbon fiber sucker rod 2, preventing the thread preload from weakening and causing the connection to loosen.

[0040] By wrapping the connection between the first carbon fiber sucker rod 1 and the second carbon fiber sucker rod 2 with the fixed sleeve 4, the concentrated stress is dispersed to a larger area, preventing the first carbon fiber sucker rod 1 from fracture, which is mainly caused by brittle fracture due to local overload. At this time, the elastic sealing seat 7 is in close contact with the fixed sleeve 4, forming a contact sealing effect and creating a physical barrier to prevent sand particles, wax and other media from entering the connection between the first carbon fiber sucker rod 1 and the second carbon fiber sucker rod 2. When it is necessary to disassemble the first carbon fiber sucker rod 1 and the second carbon fiber sucker rod 2, the first ratchet plate 6 can be moved downward by rotating the drive seat 5 until the first ratchet plate 6 and the second ratchet plate 8 are separated. Releasing the restriction makes it easy to separate the first carbon fiber sucker rod 1 and the second carbon fiber sucker rod 2.

[0041] A connector 11 is fixedly installed at one end of the first carbon fiber sucker rod 1. The connector 11 is threadedly connected to the second carbon fiber sucker rod 2. The connector 11 can be used to connect with the second carbon fiber sucker rod 2. The connector 11 is made of carbon fiber and resin matrix composite.

[0042] The second carbon fiber sucker rod 2 has a threaded groove 21 inside one end. The connector 11 is threadedly connected to the threaded groove 21. The second carbon fiber sucker rod 2 and the first carbon fiber sucker rod 1 can be connected end to end through the threaded connection between the connector 11 and the threaded groove 21 to form a continuous rod column that extends from the ground to the downhole pump position.

[0043] The drive base 5 includes a rotating plate 51 and two screw plates 52 fixed on one side of the rotating plate 51. The rotating plate 51 and the screw plates 52 are slidably connected to the fixed sleeve 4. The two screw plates 52 are threadedly connected to the first ratchet plate 6. Rotating the rotating plate 51 can drive the two screw plates 52 to rotate. Since it is only necessary to separate the first ratchet plate 6 from the second ratchet plate 8, the movement of the first ratchet plate 6 is not large. Therefore, the distance that the rotating plate 51 drives the two screw plates 52 to rotate and move is enough to separate the first ratchet plate 6 from the second ratchet plate 8. Slider blocks 61 are fixedly installed on both sides of the first ratchet plate 6. The sliders 61 are slidably connected to the inner wall of the fixed sleeve 4. The movement of the first ratchet plate 6 can be limited by the sliders 61.

[0044] The elastic sealing seat 7 includes a circular frame plate 71 and several springs 72 fixed inside the circular frame plate 71. The second ratchet plate 8 is slidably connected to the circular frame plate 71, and the springs 72 are fixedly connected to the second ratchet plate 8. The circular frame plate 71 can limit the movement of the second ratchet plate 8, and the elastic force of the springs 72 can provide elastic force to the second ratchet plate 8, so that the second ratchet plate 8 can engage with the first ratchet plate 6.

[0045] To address the technical problem of the first carbon fiber sucker rod 1 breaking and falling into the oil well due to the connector 11, such as... Figures 3-4 and Figures 6-8 As shown, the following preferred technical solutions are provided:

[0046] A connecting rod 12 is slidably connected inside the connector 11. A gear plate 13 is fixedly installed at one end of the connecting rod 12. The gear plate 13 is slidably connected to the connector 11. The sliding friction between the connecting rod 12 and the gear plate 13 inside the connector 11 is greater than the sum of the weights of the connecting rod 12 and the gear plate 13. This prevents the connecting rod 12 and the gear plate 13 from sliding out of the connector 11. A fixing disc 14 is fixedly installed inside one end of the first carbon fiber sucker rod 1. A connecting rope 15 is fixedly installed on one side of the fixing disc 14. The connecting rope 15 is coiled inside the first carbon fiber sucker rod 1 and can stretch under tension. The connecting rope 15 is slidably connected to the first carbon fiber sucker rod 1. A locking block 16 is fixedly installed at one end of the connecting rope 15. The locking block 16 is rotatably locked to the connector 11. During downhole operations, if a sudden extreme condition occurs, such as a sudden pump jam in the downhole equipment, the connector 11 will be subjected to extremely high stress far exceeding its design load-bearing capacity.

[0047] Because carbon fiber material is inherently brittle, under such instantaneous high-stress impact, the material will break rapidly before undergoing significant plastic deformation, thus forming a fracture at the connection. Therefore, when the connector 11 breaks with the first carbon fiber sucker rod 1, since the connector 11 is threadedly connected to the second carbon fiber sucker rod 2, the connector 11 will be stuck inside the second carbon fiber sucker rod 2. At this time, since the locking block 16 rotates and locks inside the connector 11, the connecting rope 15 and the fixing disc 14 can pull the first carbon fiber sucker rod 1, preventing the rod from falling into the oil well due to the breakage of the first carbon fiber sucker rod 1 and the connector 11. After the rod is removed from the oil well, the locking block 16 is rotated to release the locking from the connector 11, thus separating the first carbon fiber sucker rod 1 from the connector 11.

[0048] One end of the connector 11 has a strip groove 111 inside, and the other end of the connector 11 has a corresponding arc groove 112 inside. The arc groove 112 is connected to the strip groove 111. A limiting groove 113 is provided on one side of the arc groove 112. First, the locking block 16 passes through the strip groove 111. Then, the connecting rope 15 can be rotated to drive the locking block 16 to rotate. Then, both ends of the locking block 16 are slid into the limiting groove 113 for limiting. When connecting the connecting rope 15, it is only necessary to push the connecting rope 15 upward to move the locking block 16 upward and separate it from the limiting groove 113. Then, rotate the connecting rope 15 in the opposite direction to align the locking block 16 with the strip groove 111, and the locking block 16 can be removed from the inside of the connector 11.

[0049] The locking block 16 includes a slide cylinder 161 and arc-shaped blocks 162 fixed on both sides of the slide cylinder 161. The slide cylinder 161 is slidably connected to the connecting rod 12. The arc-shaped blocks 162 are in contact with the limiting groove 113. The contact between the arc-shaped blocks 162 and the limiting groove 113 can limit the slide cylinder 161 and prevent the arc-shaped blocks 162 from rotating with the slide cylinder 161 and separating from the connector 11.

[0050] One end of the connecting rod 12 has a plum blossom groove 17. A special tool is used to fit the plum blossom groove 17, and then the special tool can be rotated to drive the connecting rod 12 and the gear plate 13 to rotate. Through the limiting of the gear plate 13, the connecting head 11 can be driven to rotate, and the connecting head 11 can be removed from the inside of the second carbon fiber sucker rod 2. At the same time, since the connecting rod 12 and the gear plate 13 are slidably connected to the connecting head 11, after the connecting head 11 is disassembled, the connecting rod 12 and the gear plate 13 can be removed from the inside of the connecting head 11 for reuse, reducing resource waste.

[0051] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0052] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A carbon fiber reinforced communication sucker rod, comprising a first carbon fiber sucker rod (1) and a second carbon fiber sucker rod (2) threadedly connected to one end of the first carbon fiber sucker rod (1), characterized in that: Both the first carbon fiber sucker rod (1) and the second carbon fiber sucker rod (2) are equipped with a communication structure (3). A fixed sleeve (4) is fixedly installed at one end of the first carbon fiber sucker rod (1). A drive seat (5) is rotatably connected to one side of the fixed sleeve (4). A first ratchet plate (6) is slidably connected inside the fixed sleeve (4). The first ratchet plate (6) is threadedly connected to the drive seat (5). An elastic sealing seat (7) is fixedly installed on the surface of the second carbon fiber sucker rod (2). The elastic sealing seat (7) is in contact with the fixed sleeve (4). A second ratchet plate (8) is installed on one side of the elastic sealing seat (7). The second ratchet plate (8) is meshed with the first ratchet plate (6). A connector (11) is fixedly installed at one end of the first carbon fiber sucker rod (1). The connector (11) is threadedly connected to the second carbon fiber sucker rod (2). The connector (11) can be connected to the second carbon fiber sucker rod (2). The connector (11) has a connecting rod (12) slidably connected inside. A gear plate (13) is fixedly installed at one end of the connecting rod (12). The gear plate (13) is slidably connected to the connector (11). A fixed plate (14) is fixedly installed inside one end of the first carbon fiber sucker rod (1). A connecting rope (15) is fixedly installed on one side of the fixed plate (14). The connecting rope (15) is slidably connected to the first carbon fiber sucker rod (1). A locking block (16) is fixedly installed at one end of the connecting rope (15). The locking block (16) is rotatably locked to the connector (11).

2. The carbon fiber reinforced communication sucker rod according to claim 1, characterized in that: The connector (11) has a strip groove (111) inside one end and an arc groove (112) correspondingly inside the other end. The arc groove (112) is connected to the strip groove (111), and a limit groove (113) is provided on one side of the arc groove (112).

3. The carbon fiber reinforced communication sucker rod according to claim 2, characterized in that: The card block (16) includes a slide cylinder (161) and an arc-shaped block (162) fixed on both sides of the slide cylinder (161). The slide cylinder (161) is slidably connected to the connecting rod (12), and the arc-shaped block (162) is in contact with the limiting groove (113).

4. The carbon fiber reinforced communication sucker rod according to claim 3, characterized in that: The connecting rod (12) has a plum blossom groove (17) at one end.

5. A carbon fiber reinforced communication sucker rod according to claim 4, characterized in that: The second carbon fiber sucker rod (2) has a threaded groove (21) inside one end, and the connector (11) is threadedly connected to the threaded groove (21).

6. The carbon fiber reinforced communication sucker rod according to claim 1, characterized in that: The drive seat (5) includes a rotating plate (51) and two screw plates (52) fixed on one side of the rotating plate (51). The rotating plate (51) and the screw plates (52) are slidably connected to the fixed sleeve (4), and the two screw plates (52) are threadedly connected to the first ratchet plate (6).

7. The carbon fiber reinforced communication sucker rod according to claim 1, characterized in that: The first ratchet plate (6) has sliders (61) fixedly installed on both sides, and the sliders (61) are slidably connected to the inner wall of the fixed sleeve (4).

8. A carbon fiber reinforced communication sucker rod according to claim 1, characterized in that: The elastic sealing seat (7) includes a circular frame plate (71) and several springs (72) fixed inside the circular frame plate (71). The second ratchet plate (8) is slidably connected to the circular frame plate (71), and the springs (72) are fixedly connected to the second ratchet plate (8).

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