A high-strength steel solid sucker rod

Abstract

The present invention discloses a high-strength steel solid sucker rod, which relates to the technical field of petroleum operation machinery, and aims to solve the problem that the existing steel solid sucker rod connection is relatively weak, the threaded connection part is prone to breakage and excessive wear, thereby affecting the safety during use and the service life of the steel solid sucker rod. The invention includes a first threaded rod. During the assembly process, on the one hand, the friction between the first threaded rod and the internal thread of the threaded assembly can be increased by the reverse thrust formed by squeezing the moving assembly, thereby increasing the tightness of the connection between the first threaded rod and the threaded assembly, and avoiding the loosening and falling off of the device due to vibration. On the other hand, the setting of the threaded assembly can share the strength of the connection joint of the two rod body mechanisms, and ensure that the rod body mechanism can maintain a vertical state after the connection is completed by sharing the pressure, thereby ensuring the service life of the device.

Description

Technical Field

[0001] The invention relates to the technical field of petroleum operation machinery, and more specifically to a high-strength steel solid sucker rod. Background Art

[0002] Steel solid sucker rod, as a key component in oilfield exploitation, is carefully processed from a whole piece of high-quality steel material, and is composed of multiple closely connected steel pipes. Each steel pipe is seamlessly spliced ​​into a sturdy and durable sucker rod column through precise threaded connection technology. Compared with the common hollow sucker rod, the steel solid sucker rod has more excellent strength and durability due to its characteristics of being forged from solid steel.

[0003] In the traditional connection method, each section of the steel solid sucker rod mainly relies on the tight combination of the threaded rod and the threaded sleeve to achieve connection, thereby forming a complete sucker rod column. However, this connection method has a significant weakness: the connection part is relatively weak. Due to the possible lack of strength or stability at the connection, the sucker rod is prone to the risk of breaking or loosening in actual operation, which will not only seriously affect the pumping efficiency, but may also trigger safety accidents and bring immeasurable losses.

[0004] In addition, the sucker rod will inevitably generate vibration and stress during operation, and these external factors will aggravate the wear of the threaded connection. Over time, the size of the connection will gradually decrease, and the fit clearance will increase accordingly. The cumulative effect of this wear will further accelerate the wear process, significantly shorten the service life of the sucker rod, and greatly increase the maintenance cost. In view of this, we propose a high-strength steel solid sucker rod. Summary of the invention

[0005] The purpose of the present invention is to provide a high-strength steel solid sucker rod to solve the technical problem that the existing steel solid sucker rod has weak connections, and the threaded connection parts are prone to breakage and excessive wear, thereby affecting the safety during use and the service life of the steel solid sucker rod.

[0006] In order to solve the above technical problems, the present invention provides the following technical solutions: a high-strength steel solid sucker rod, comprising:

[0007] A rod body mechanism includes a first threaded rod, a sucker rod arranged below the first threaded rod, a groove, a connecting rod and a second threaded rod, wherein the second threaded rod is arranged below the connecting rod, the connecting rod is connected to the sucker rod, and the groove is arranged outside the sucker rod; and a connecting mechanism includes a threaded component, a moving component arranged in the threaded component, a series component connected to the moving component, a frame component and a limit component, wherein the frame component is connected to the limit component, and the frame component is arranged outside the threaded component.

[0008] During the assembly process of the present invention, on the one hand, the reverse thrust formed by squeezing the moving component can increase the friction between the first threaded rod and the internal thread of the threaded component, thereby increasing the tightness of the connection between the first threaded rod and the threaded component, avoiding the loosening and falling off of the device due to vibration, and cooperating with the limit component can further reduce the self-rotation of the rod body mechanism during the oil pumping process, thereby ensuring the safety during use. On the other hand, the setting of the threaded component can share the strength of the connection joint of the two rod body mechanisms, and ensure that the rod body mechanism can maintain a vertical state after the connection is completed by sharing the pressure, thereby ensuring the service life of the device.

[0009] Preferably, the bottom end of the first threaded rod is tightly welded to the top end of the sucker rod, the bottom end of the sucker rod is fixedly connected to the top end of the connecting rod, the bottom end of the connecting rod is fixedly connected to the top end of the second threaded rod, and the number of the slots is several, and the several slots are all opened outside the sucker rod.

[0010] Preferably, the connecting rod is in the shape of a square cone, and the bottom end of the first threaded rod is in the shape of a cone.

[0011] Preferably, the inner wall of the threaded component overlaps with the moving component, the moving component overlaps with the serial component, the serial component is arranged outside the threaded component, the outer wall of the threaded component is tightly welded with four frame components, and the four frame components are respectively engaged with four limit components;

[0012] The first threaded rod is threadedly connected in the threaded assembly, and the limit assembly is clamped in a clamping groove provided outside the sucker rod.

[0013] Preferably, the threaded assembly includes a sleeve, the number of the sleeves is two, and a clamping sleeve is provided in each of the two sleeves, a slope is provided on the side of the two sleeves away from each other, four slide grooves are provided on the outside of the sleeve, and the spacing between the four slide grooves is the same, the two sleeves are tightly welded with the same fixing sleeve, and thread grooves are provided in each of the two sleeves;

[0014] The moving component is slidably connected in the sleeve and the sliding groove, the frame component is fixedly connected outside the sleeve, and the sleeve is threadedly connected to the first threaded rod through a threaded groove.

[0015] Preferably, the moving assembly includes a limit plate, springs are fixedly connected to the upper and lower parts of the limit plate, and the ends of the two springs that are far away from each other are fixedly connected to the two bottom plates respectively, and a plurality of levers are fixedly connected to the outside of the two bottom plates, and a groove is provided on one side of the lever;

[0016] The shifting rod is slidably connected in the sliding groove, the bottom plate is slidably connected in the sleeve, the limiting plate and the clamping groove are clamped with each other, and the shifting rod is overlapped with the series assembly through the groove.

[0017] Preferably, the series assembly comprises a connecting steel cable, and both ends of the connecting steel cable are connected by a connector;

[0018] One end of the connecting steel cable passes through four limit assembly components and is connected to the other end through a connector.

[0019] Preferably, the frame assembly includes two brackets, and the first bearings are clamped on opposite sides of the two brackets. The same first rotating shaft is sleeved in the two first bearings, and a transmission block is outer-connected to the first rotating shaft. Two through holes are provided in the transmission block, and the first rotating shaft is sleeved in one of the through holes.

[0020] Preferably, the transmission block is sleeved on the outside of the second rotating shaft through another through hole, and the second rotating shaft is sleeved on the outside of the second rotating shaft with two second bearings;

[0021] The bracket is fixedly connected to the outside of the sleeve, and the two second bearings are both clamped in the limiting assembly.

[0022] Preferably, the limiting assembly comprises a movable plate, one side of the movable plate is fixedly connected to two first limiting strips, one side of the first limiting strip is provided with a connecting hole, the other side of the first limiting strip is fixedly connected to a second limiting strip, one side of the movable plate provided with the first limiting strip is fixedly connected to two reinforcing ribs, and the other sides of the two reinforcing ribs are respectively fixedly connected to the two first limiting strips;

[0023] The connecting steel cable is located in the connecting hole, the two second limit strips are both clamped in the clamping grooves, the second limit strips overlap the outer wall of the connecting rod, the reinforcing ribs are triangular, and the two second bearings are respectively clamped with the two first limit strips.

[0024] Compared with the prior art, the present invention has the following beneficial effects:

[0025] 1. The present invention designs a threaded assembly, a moving assembly and a limit assembly. When the rod body mechanism and the connecting mechanism are assembled, the first threaded rod continuously moves into the threaded assembly, thereby pushing the moving assembly to shrink in the threaded assembly, so that the limit assembly fits into the connecting rod and the slot and completes the assembly. During the assembly process of the device, on the one hand, the reverse thrust formed by squeezing the moving assembly can increase the friction between the first threaded rod and the internal threads of the threaded assembly, thereby increasing the tightness of the connection between the first threaded rod and the threaded assembly, avoiding the loosening and falling off of the device due to vibration, and cooperating with the limit assembly can further reduce the self-rotation of the rod body mechanism during the oil pumping process, thereby ensuring the safety of the device during use. On the other hand, the setting of the threaded assembly can share the strength of the connection joint of the two rod body mechanisms, and ensure that the rod body mechanism can maintain a vertical state after the connection is completed by sharing the pressure, thereby ensuring the service life of the device.

[0026] 2. The present invention also designs a threaded assembly, a frame assembly and a limit assembly. During installation, the first threaded rod needs to be inserted into the sleeve, and the first threaded rod is rotated clockwise while grasping the sleeve, so that the first threaded rod gradually moves into the sleeve and squeezes the bottom plate to move in the direction of the limit plate. Since the bottom plate will drive the lever to move upward during the movement, the lever pulls the connecting steel cable upward and the first limit strip and the movable plate will move upward synchronously. At this time, the movable plate will move upward in a circular shape along the first rotating shaft due to the limitation of the second bearing and fit the outside of the sleeve, so that the second limit strip is completely fitted into the slot and the outside of the connecting rod. Similarly, the upper rod body mechanism can be assembled, so that the device can be connected during the installation process. The connecting mechanism can automatically limit the rod body mechanism, and at the same time, with the reverse push elastic force of the spring, on the one hand, it can ensure the stability of the connection between the first threaded rod and the second threaded rod in the sleeve, and on the other hand, the first limit strip and the second limit strip will also have a secondary fixing effect on the sucker rod, further ensuring the safety of the device when in use.

[0027] 3. The present invention also designs a series component. When disassembling, the connector at the connecting cable joint needs to be disassembled to loosen the connecting cable and then pull out the connecting cable. Due to the lack of a limit on the connecting cable, the movable plate and the first limit bar will be reset under the action of gravity. At this time, the first limit bar and the second limit bar will loosen the restriction on the connecting rod and the slot. Then, the first threaded rod can be rotated counterclockwise to disengage it from the sleeve, so that the device can be quickly assembled and the difficulty of disassembly is reduced. Compared with the existing sucker rod, while ensuring the stability and safety after assembly, only the step of disassembling the connector is added, thereby further ensuring the actual use effect of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0029] Figure 2 It is a schematic diagram of the rod mechanism structure of the present invention;

[0030] Figure 3 It is a schematic diagram of the connection mechanism structure of the present invention;

[0031] Figure 4 It is a schematic diagram of the cross-sectional structure of the connection mechanism of the present invention;

[0032] Figure 5 It is a schematic diagram of the cross-sectional structure of the threaded assembly of the present invention;

[0033] Figure 6 It is a schematic diagram of the structure of the mobile component of the present invention;

[0034] Figure 7 It is a schematic diagram of the exploded structure of the frame assembly of the present invention;

[0035] Figure 8 For the present invention Figure 7 Enlarged structural diagram at A in the middle.

[0036] Description of the numbers in the figure:

[0037] 1. Rod mechanism; 2. Connection mechanism;

[0038] 101, first threaded rod; 102, sucker rod; 103, slot; 104, connecting rod; 105, second threaded rod;

[0039] 201, threaded assembly; 202, moving assembly; 203, serial assembly; 204, frame assembly; 205, limit assembly;

[0040] 2011, sleeve; 2012, ferrule; 2013, bevel; 2014, slide; 2015, thread groove; 2016, fixed sleeve;

[0041] 2021, a limit plate; 2022, a spring; 2023, a bottom plate; 2024, a lever; 2025, a groove;

[0042] 2031, connecting cable; 2032, connector;

[0043] 2041, bracket; 2042, first bearing; 2043, first rotating shaft; 2044, transmission block; 2045, through hole; 2046, second rotating shaft; 2047, second bearing;

[0044] 2051. movable plate; 2052. first limiting strip; 2053. connecting hole; 2054. second limiting strip; 2055. reinforcing rib. DETAILED DESCRIPTION

[0045] like Figures 1 to 8 As shown, the present invention relates to a high-strength steel solid sucker rod, comprising:

[0046] The rod body mechanism 1 includes a first threaded rod 101, a sucker rod 102 arranged below the first threaded rod 101, a slot 103, a connecting rod 104 and a second threaded rod 105, wherein the second threaded rod 105 is arranged below the connecting rod 104, the connecting rod 104 is connected to the sucker rod 102, and the slot 103 is arranged outside the sucker rod 102; and a connecting mechanism 2 includes a threaded component 201, a moving component 202 arranged in the threaded component 201, a series component 203 connected to the moving component 202, a frame component 204 and a limit component 205, wherein the frame The frame assembly 204 is connected to the limit assembly 205, and the frame assembly 204 is arranged outside the thread assembly 201. When assembling the rod body mechanism 1 and the connecting mechanism 2, the top end of the first threaded rod 101 is inserted into the thread assembly 201, and the thread assembly 201 is grasped. The first threaded rod 101 is installed and connected with the thread assembly 201 by rotating the first threaded rod 101 clockwise. During the installation process, the first threaded rod 101 continues to move into the thread assembly 201, thereby pushing the moving assembly 202 to retract in the thread assembly 201. At the same time, the moving assembly 20 2 will also drive the limiting assembly 205 to move through the serial assembly 203. Since the moving assembly 202 will be restricted by the frame assembly 204 when moving and will be attached to the outside of the frame assembly 204, the limiting assembly 205 will be attached to the connecting rod 104 and the card slot 103 to complete the assembly. After use, the serial assembly 203 needs to be disassembled to reset the limiting assembly 205. At this time, the first threaded rod 101 can be rotated counterclockwise to complete the disassembly. In the assembly process of the device, on the one hand, the reverse thrust formed by squeezing the moving assembly 202 can increase the first threaded rod 10 1 and the friction between the internal threads of the threaded component 201, thereby increasing the tightness of the connection between the first threaded rod 101 and the threaded component 201, avoiding the loosening and falling off of the device due to vibration, and cooperating with the limit component 205 can further reduce the rotation of the rod body mechanism 1 during the oil pumping process, thereby ensuring the safety of the device during use. On the other hand, the setting of the threaded component 201 can share the strength of the connection joint of the two rod body mechanisms 1, and ensure that the rod body mechanism 1 can maintain a vertical state after the connection is completed by sharing the pressure, thereby ensuring the service life of the device.

[0047] In the embodiment of the present invention, the bottom end of the first threaded rod 101 is tightly welded to the top end of the sucker rod 102, the bottom end of the sucker rod 102 is fixedly connected to the top end of the connecting rod 104, the bottom end of the connecting rod 104 is fixedly connected to the top end of the second threaded rod 105, the number of the slots 103 is several, and the several slots 103 are all opened outside the sucker rod 102, the shape of the connecting rod 104 is a square cone, the bottom end of the first threaded rod 101 is a cone, the inner wall of the threaded component 201 overlaps with the moving component 202, the moving component 202 overlaps with the serial component 203, and the serial component 203 is connected to the connecting component 203. The connecting component 203 is arranged outside the threaded component 201, the outer wall of the threaded component 201 is tightly welded with the four frame components 204, and the four frame components 204 are respectively connected with the four limit components 205. The first threaded rod 101 is threadedly connected in the threaded component 201, and the limit component 205 is connected in the slot 103 provided outside the sucker rod 102. By designing the threaded component 201, the frame component 204 and the limit component 205, when installing, the first threaded rod 101 needs to be inserted into the sleeve 2011, and the first threaded rod 101 needs to be rotated clockwise while grasping the sleeve 2011. The first threaded rod 101 gradually moves into the sleeve 2011 and squeezes the bottom film 2023 to move in the direction of the limiting plate 2021. Since the bottom film 2023 drives the lever 2024 to move upward during the movement, the lever 2024 pulls the connecting cable 2031 upward and the first limiting strip 2052 and the movable plate 2051 move upward synchronously. At this time, the movable plate 2051 moves upward in a circular shape along the first rotating shaft 2043 due to the restriction of the second bearing 2047 and fits outside the sleeve 2011, so that the second limiting strip 2054 It fits completely outside the slot 103 and the connecting rod 104. Similarly, the upper rod body mechanism 1 can be assembled, so that the connecting mechanism 2 can automatically limit the rod body mechanism 1 during the installation process of the device. At the same time, with the reverse thrust force of the spring 2022, on the one hand, the stability of the connection between the first threaded rod 101 and the second threaded rod 105 in the sleeve 2011 can be ensured. On the other hand, the first limit strip 2052 and the second limit strip 2054 will also fix the sucker rod 102 for a second time, further ensuring the safety of the device when in use.

[0048] In the embodiment of the present invention, the threaded component 201 includes a sleeve 2011, the number of the sleeves 2011 is two, and the two sleeves 2011 are both provided with a ferrule 2012, the two sleeves 2011 are both provided with an inclined surface 2013 on the side away from each other, four slide grooves 2014 are provided outside the sleeve 2011, and the spacing between the four slide grooves 2014 is the same, the two sleeves 2011 are tightly welded with the same fixed sleeve 2016 outside, and the two sleeves 2011 are both provided with a thread groove 2015, the moving component 202 is slidably connected to the sleeve 2011 and the slide groove 2014, the frame component 204 is fixedly connected to the outside of the sleeve 2011, the sleeve 2011 is threadedly connected to the first threaded rod 101 through the thread groove 2015, and the moving component 202 includes a limiting piece 2021, Springs 2022 are fixedly connected to the upper and lower parts of the limiting piece 2021, and the ends of the two springs 2022 that are far away are fixedly connected to the two bottom plates 2023 respectively. A plurality of levers 2024 are fixedly connected to the outside of the two bottom plates 2023. A groove 2025 is provided on one side of the lever 2024. The lever 2024 is slidably connected to the slide groove 2014. The bottom plate 2023 is slidably connected to the sleeve 2011. The limiting piece 2021 and the card slot 103 are mutually engaged. The lever 2024 is overlapped with the series component 203 through the groove 2025. By adopting the design of the shift block and the groove 2025, the shift block will not be directly connected to the connecting steel cable 2031, so that the shift block does not need to be removed as a whole during the disassembly process, and the difficulty of disassembling the connector 2032 is reduced.

[0049] Because the sleeve 2011, the clamping sleeve 2012 and the fixing sleeve 2016 are provided, after the first threaded rod 101 and the second threaded rod 105 are assembled in the sleeve 2011, the fixing sleeve 2016 can strengthen the overall strength of the outer wall of the sleeve 2011 and protect the parts of the sleeve 2011 that are easily subjected to stress, while the clamping sleeve 2012 can limit the insertion positions of the first threaded rod 101 and the second threaded rod 105 to avoid excessive installation and thus thread slippage.

[0050] As another embodiment of the present invention, the serial assembly 203 includes a connecting steel cable 2031, both ends of the connecting steel cable 2031 are connected by a connector 2032, one end of the connecting steel cable 2031 passes through four limit assemblies 205 and is connected to the other end through the connector 2032, the frame assembly 204 includes two brackets 2041, the opposite sides of the two brackets 2041 are clamped with a first bearing 2042, the two first bearings 2042 are sleeved with the same first rotating shaft 2043, the first rotating shaft 2043 is outer-connected with a transmission block 2044, the transmission block 2044 is provided with two through holes 2045, the first rotating shaft 2043 is sleeved in one of the through holes 2045, and the serial assembly 203 is designed so that when disassembling, the connecting steel cable 2031 needs to be removed. The connector 2032 at the joint of the cable 2031 is disassembled to loosen the connecting cable 2031 and then pull out the connecting cable 2031. Due to the lack of limiting of the connecting cable 2031, the movable plate 2051 and the first limiting bar 2052 will be reset under the action of gravity. At this time, the first limiting bar 2052 and the second limiting bar 2054 will loosen the restriction on the connecting rod 104 and the slot 103. Then, the first threaded rod 101 can be rotated counterclockwise to disengage it from the sleeve 2011, so that the device can be assembled quickly and the difficulty of disassembly is reduced. Compared with the existing sucker rod 102, while ensuring the stability and safety after assembly, only the step of disassembling the connector 2032 is added, thereby further ensuring the actual use effect of the device.

[0051] As another embodiment of the present invention, the transmission block 2044 is sleeved on the outside of the second rotating shaft 2046 through another through hole 2045, and the outer shell of the second rotating shaft 2046 is connected with two second bearings 2047, the bracket 2041 is fixedly connected to the outside of the sleeve 2011, and the two second bearings 2047 are both clamped in the limiting assembly 205, and the limiting assembly 205 includes a movable plate 2051, one side of the movable plate 2051 is fixedly connected to the two first limiting strips 2052, one side of the first limiting strip 2052 is provided with a connecting hole 2053, and the other side of the first limiting strip 2052 is fixedly connected to the second limiting strip 2054, and the movable plate 2051 is provided with a first limiting strip 2052. One side is fixedly connected to two reinforcing ribs 2055, and the other sides of the two reinforcing ribs 2055 are respectively connected to the two first limiting strips. The strip 2052 is fixedly connected, the connecting steel cable 2031 is located in the connecting hole 2053, the two second limit strips 2054 are both clamped in the slot 103, the second limit strip 2054 overlaps the outer wall of the connecting rod 104, the reinforcing rib 2055 is triangular, and the two second bearings 2047 are respectively clamped with the two first limit strips 2052. Through the setting of the reinforcing rib 2055, it is ensured that when the first threaded rod 101 rotates due to vibration, the first limit strip 2052 and the second limit strip 2054 will limit the connecting rod 104 and the slot 103, and the reinforcing rib 2055 will share the pressure of the first limit strip 2052 and the second limit strip 2054 at this time, ensuring that the first threaded rod 101 will not rotate, while ensuring the service life of the device.

[0052] Working principle: This embodiment provides a high-strength steel solid sucker rod. When in use, the two rod mechanisms 1 to be connected are respectively installed at the top and bottom of the connecting mechanism 2, and the rod mechanism 1 at the top is installed in a manner that the second threaded rod 105 is downward, while the rod mechanism 1 at the bottom needs to be assembled with the connecting mechanism 2 in a manner that the first threaded rod 101 is upward, and it can be used after assembly;

[0053] When assembling the rod body mechanism 1 and the connecting mechanism 2, insert the top end of the first threaded rod 101 into the threaded component 201, grasp the threaded component 201, and install and connect the first threaded rod 101 and the threaded component 201 by rotating the first threaded rod 101 clockwise. During the installation process, the first threaded rod 101 continues to move into the threaded component 201, thereby pushing the moving component 202 to retract in the threaded component 201. At the same time, the moving component 202 will also drive the limiting component 205 to move through the serial component 203. Since the moving component 202 will be restricted by the frame component 204 during displacement and then fit outside the frame component 204, the limiting component 205 fits into the connecting rod 104 and the slot 103 and completes the assembly. After use, it is necessary to disassemble the serial component 203 to reset the limiting component 205. At this time, the first threaded rod 101 can be rotated counterclockwise to complete the disassembly.

[0054] During installation, the first threaded rod 101 needs to be inserted into the sleeve 2011, and the first threaded rod 101 needs to be rotated clockwise while the sleeve 2011 is gripped, so that the first threaded rod 101 gradually moves into the sleeve 2011 and squeezes the bottom film 2023 to move in the direction of the limiting plate 2021. Since the bottom film 2023 drives the lever 2024 to move upward during the movement, the lever 2024 pulls the connecting steel cable 2031 upward and the first limiting strip 2052 and the movable plate 2051 move upward synchronously. At this time, the movable plate 2051 moves upward in a circular shape along the first rotating shaft 2043 due to the restriction of the second bearing 2047 and fits outside the sleeve 2011, so that the second limiting strip 2054 is completely fitted outside the slot 103 and the connecting rod 104. Similarly, the upper rod mechanism 1 can be assembled.

[0055] During disassembly, the connector 2032 at the joint of the connecting steel cable 2031 needs to be disassembled to loosen the connecting steel cable 2031 and then pull out the connecting steel cable 2031. Due to the lack of limiting of the connecting steel cable 2031, the movable plate 2051 and the first limiting bar 2052 will be reset under the action of gravity. At this time, the first limiting bar 2052 and the second limiting bar 2054 will loosen the restrictions on the connecting rod 104 and the slot 103. Then, the first threaded rod 101 can be rotated counterclockwise to disengage it from the sleeve 2011, so that the device can be quickly assembled and the difficulty of disassembly is reduced.

[0056] The embodiments of the present invention disclose preferred embodiments, but are not limited thereto. A person skilled in the art can easily understand the spirit of the present invention based on the above embodiments and make different extensions and changes. However, as long as they do not deviate from the spirit of the present invention, they are all within the protection scope of the present invention.

Claims

1. A high-strength steel solid sucker rod, a first threaded rod (101) and a sucker rod (102), characterized in that: include, A rod body mechanism (1), comprising a first threaded rod (101), a sucker rod (102) arranged below the first threaded rod (101), a clamping groove (103), a connecting rod (104), and a second threaded rod (105), wherein the second threaded rod (105) is arranged below the connecting rod (104), the connecting rod (104) is connected to the sucker rod (102), and the clamping groove (103) is arranged outside the sucker rod (102); and, A connecting mechanism (2), comprising a threaded component (201), a moving component (202) arranged in the threaded component (201), a series component (203) connected to the moving component (202), a frame component (204) and a limit component (205), wherein the frame component (204) is connected to the limit component (205), and the frame component (204) is arranged outside the threaded component (201); The threaded assembly (201) comprises a sleeve (2011), the number of the sleeves (2011) is two, and a clamping sleeve (2012) is provided inside the two sleeves (2011), a slope (2013) is provided on the side of the two sleeves (2011) away from each other, four slide grooves (2014) are provided outside the sleeve (2011), and the spacing between the four slide grooves (2014) is the same, the two sleeves (2011) are tightly welded with a same fixing sleeve (2016), and the two sleeves (2011) are provided with a thread groove (2015); The moving assembly (202) comprises a limiting plate (2021), the limiting plate (2021) is fixedly connected with springs (2022) above and below, and the two ends of the two springs (222) that are far away from each other are respectively fixedly connected with two bottom plates (223), and the two bottom plates (223) are fixedly connected with a plurality of levers (224) outside, and a groove (2025) is provided on one side of the lever (2024); The serial connection assembly (203) comprises a connecting steel cable (2031), and two ends of the connecting steel cable (2031) are connected via a connector (2032); The frame assembly (204) comprises two brackets (2041), and first bearings (2042) are clamped on opposite sides of the two brackets (2041). The same first rotating shaft (2043) is sleeved inside the two first bearings (2042), and a transmission block (2044) is sleeved outside the first rotating shaft (2043). Two through holes (2045) are provided in the transmission block (2044), and the first rotating shaft (2043) is sleeved inside one of the through holes (2045). The limiting assembly (205) comprises a movable plate (2051), one side of the movable plate (2051) is fixedly connected to two first limiting strips (2052), one side of the first limiting strip (2052) is provided with a connecting hole (2053), the other side of the first limiting strip (2052) is fixedly connected to a second limiting strip (2054), one side of the movable plate (2051) provided with the first limiting strip (2052) is fixedly connected to two reinforcing ribs (2055), and the other sides of the two reinforcing ribs (2055) are respectively fixedly connected to the two first limiting strips (2052).

2. The high-strength steel solid sucker rod according to claim 1, characterized in that: The bottom end of the first threaded rod (101) is tightly welded to the top end of the sucker rod (102), the bottom end of the sucker rod (102) is fixedly connected to the top end of the connecting rod (104), the bottom end of the connecting rod (104) is fixedly connected to the top end of the second threaded rod (105), and the number of the slots (103) is multiple, and the multiple slots (103) are all opened outside the sucker rod (102).

3. The high-strength steel solid sucker rod according to claim 2, characterized in that: The connecting rod (104) is in the shape of a square cone, and the bottom end of the first threaded rod (101) is in the shape of a cone.

4. The high-strength steel solid sucker rod according to claim 3, characterized in that: The inner wall of the threaded component (201) overlaps with the moving component (202), the moving component (202) overlaps with the serial connection component (203), the serial connection component (203) is arranged outside the threaded component (201), the outer wall of the threaded component (201) is tightly welded with four frame components (204), and the four frame components (204) are respectively mutually clamped with four limit components (205); The first threaded rod (101) is threadedly connected in the threaded assembly (201), and the limit assembly (205) is clamped in a clamping groove (103) provided outside the sucker rod (102).

5. The high-strength steel solid sucker rod according to claim 4, characterized in that: The moving component (202) is slidably connected in the sleeve (2011) and the slide groove (2014), the frame component (204) is fixedly connected outside the sleeve (2011), and the sleeve (2011) is threadedly connected to the first threaded rod (101) via a thread groove (2015).

6. The high-strength steel solid sucker rod according to claim 5, characterized in that: The lever (2024) is slidably connected in the slide groove (214), the bottom plate (2023) is slidably connected in the sleeve (2011), the limit plate (2021) and the clamping groove (103) are mutually clamped, and the lever (2024) is overlapped with the series connection component (203) through the groove (2025).

7. The high-strength steel solid sucker rod according to claim 6, characterized in that: One end of the connecting steel cable (2031) passes through four limit assemblies (205) and is connected to the other end via a connector (2032).

8. The high-strength steel solid sucker rod according to claim 7, characterized in that: The transmission block (2044) is sleeved on the outside of the second rotating shaft (2046) through another through hole (2045); the second rotating shaft (2046) is sleeved on the outside with two second bearings (2047); The bracket (2041) is fixedly connected to the outside of the sleeve (2011), and the two second bearings (2047) are both clamped in the limiting assembly (205).

9. The high-strength steel solid sucker rod according to claim 8, characterized in that: The connecting steel cable (2031) is located in the connecting hole (2053), the two second limiting strips (2054) are both clamped in the clamping groove (103), the second limiting strips (2054) overlap the outer wall of the connecting rod (104), the reinforcing rib (2055) is triangular, and the two second bearings (2047) are respectively clamped with the two first limiting strips (2052).

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