A wax-resistant electrically heated carbon fiber continuous sucker rod

Abstract

A wax-resistant electrically heated carbon fiber continuous sucker rod belongs to the field of sucker rod technology. To address the issue that relying solely on heating cables to prevent crude oil waxing is ineffective due to factors such as power outages or insufficient cable power, which can cause the deposited wax layer to harden, making subsequent heating difficult and requiring additional hot washing or mechanical dewaxing. Furthermore, heating cables only prevent waxing and cannot address the problem of scale buildup on the sucker rod surface. This invention includes a sucker rod body and a linkage mechanism. The linkage mechanism for automatic scraping is located in the inner middle of the sucker rod body. Through this linkage mechanism, the rotation of a scraper can scrape and clean the outer surfaces of the bottom sucker rod and connecting rods. Its coordination with the heating cable heating the sucker rod body significantly reduces the possibility of crude oil waxing without requiring downtime or additional work, achieving "dewaxing on operation." It adapts to conditions where crude oil continuously waxes and is unaffected by temperature, ensuring stable dewaxing.

Description

Technical Field

[0001] This invention relates to the field of sucker rod technology, specifically to an anti-waxing electrically heated carbon fiber continuous sucker rod. Background Technology

[0002] The sucker rod is the core component of a pumping well. It is connected into a rod string by couplings. The upper end is connected to the pumping unit or screw pump motor, and the lower end is connected to the pumping pump plunger. It mainly undertakes the function of power transmission. As the core transmission component of the rod pumping system, the sucker rods are connected in series by couplings to form a kilometer-long rod string. It transmits the reciprocating linear motion (pumping unit) or rotational torque (screw pump) generated by the surface equipment to the downhole pump body. Nowadays, in order to prevent crude oil from waxing, heating cables are often installed in the middle of the hollow sucker rod to heat the sucker rod.

[0003] Currently, continuous sucker rods often rely solely on heating cables inside the hollow sucker rod to prevent crude oil from waxing. If the heating temperature does not reach the melting point of the wax, due to factors such as power failure or insufficient cable power, the deposited wax layer will harden, making it difficult to soften with subsequent heating. Additional hot washing or mechanical dewaxing is required. Furthermore, the heating cables can only prevent waxing and cannot address the problem of scale buildup on the sucker rod surface. Therefore, sucker rods have certain limitations in use.

[0004] To address the above issues, a wax-resistant, electrically heated carbon fiber continuous sucker rod is proposed. Summary of the Invention

[0005] The purpose of this invention is to provide an anti-waxing electrically heated carbon fiber continuous sucker rod. Using this device, the problem of sucker rods relying solely on heating cables to prevent crude oil from waxing is solved. In cases of power failure, insufficient cable power, or other factors, the deposited wax layer will harden, making it difficult to soften with subsequent heating. Additional hot washing or mechanical dewaxing is required. Furthermore, heating cables can only prevent waxing and cannot address the problem of scale buildup on the sucker rod surface.

[0006] To achieve the above objectives, the present invention provides the following technical solution: an anti-waxing electrically heated carbon fiber continuous sucker rod, comprising a sucker rod body and a linkage mechanism. The linkage mechanism for automatic scraping is disposed in the inner middle of the sucker rod body. The linkage mechanism includes a support plate, a first crankshaft rod, a first connecting worm gear, a first helical gear, an outer connecting sleeve, an upper connecting magnetic ring, and a fixing ring. The first crankshaft rod is installed on one side of the bottom of the support plate, and the first connecting worm gear is disposed below the first crankshaft rod. The first helical gear is meshed on one side of the first connecting worm gear, and the outer connecting sleeve is fixed at the bottom of the first helical gear. The upper connecting magnetic ring is disposed on the outside of the outer connecting sleeve, and the fixing ring is disposed above and below the outer surface of the upper connecting magnetic ring.

[0007] An outer slide rail is provided on the outer side of the upper connecting magnetic ring, and a magnetic slider is provided on the surface of the outer slide rail. Scrapers are fixed on the upper and lower surfaces of the magnetic slider. A second crankshaft is installed on the other side of the bottom of the support plate, and a second connecting worm is provided at the bottom of the second crankshaft. A second helical gear is meshed on one side of the second connecting worm, and an inner connecting sleeve is fixed at the bottom of the second helical gear. A lower connecting magnetic ring is fixed on the lower outer side of the inner connecting sleeve.

[0008] The main body of the sucker rod includes a bottom rod, a sheath, a connecting rod, and a heating cable. The upper end of the bottom rod is provided with a sheath, and the upper end of the bottom rod is provided with a connecting rod.

[0009] The first crankshaft rod and the second crankshaft rod are rotatably connected to the first connecting worm and the second connecting worm respectively, and the first connecting worm and the second connecting worm are rotatably connected to the side wall of the bottom oil rod. The outer diameter of the outer connecting sleeve is larger than the outer diameter of the inner connecting sleeve.

[0010] The upper connecting magnetic ring is slidably connected to the fixed ring, and the fixed ring is fixedly connected to the inner wall of the bottom oil rod. The magnetic slider and the scraper are slidably connected to the outer slide rail, and the magnetic slider is magnetically connected to the upper connecting magnetic ring. The inner surface of the scraper is tightly fitted to the outer surface of the bottom oil rod.

[0011] Furthermore, a heating cable is provided through the middle of the bottom oil rod, and the heating cable is connected to the outer connecting sleeve and the inner connecting sleeve.

[0012] Furthermore, a support mechanism for supporting bending resistance is provided on the outer side of the middle part of the linkage mechanism. The support mechanism includes a wrapping ring, a fixed rod, a first folding plate, a sliding rod, and a support arc plate. A fixed rod is fixedly provided on the outside of the wrapping ring, and a first folding plate is provided on the middle of the inner side of the fixed rod. A sliding rod is installed at the front end of the first folding plate, and a support arc plate is fixed on the top of the sliding rod.

[0013] Furthermore, the upper and lower surfaces of the support mechanism are provided with a connecting mechanism for reinforcement. The connecting mechanism includes a fixed sleeve, a second folding plate, a sliding rod, and a mating slot. The second folding plate is provided in the middle of the inner side of the fixed sleeve, and the sliding rod is fixedly connected to the top of the second folding plate. The mating slot is provided on the opposite side of the bottom of the fixed sleeve.

[0014] Furthermore, the fixed rod, the first folding plate, the sliding rod, and the supporting arc plate are arranged in five sets around the wrapping ring, and the sliding rod is slidably connected to the fixed rod, the sliding insert is slidably connected to the fixed sleeve, and the sliding insert coincides with the vertical center line of the mating slot.

[0015] Furthermore, the top outer side of the linkage mechanism is provided with a resistance mechanism for rotational torsion. The resistance mechanism includes an upper support ring and a first movable groove. The bottom surface of the upper support ring is provided with four sets of first movable grooves, and the upper support ring is fixedly connected to the connecting oil rod.

[0016] Furthermore, the resistance mechanism also includes a first damping column, a rotating seat, and a fixed plate. The first damping column is provided in the middle of the inner side of the first movable groove, and the rotating seat is installed at the front and rear ends of the first damping column. A fixed plate is connected to one side of the rotating seat, and the fixed plate is fixedly connected to the support plate.

[0017] Furthermore, the resistance mechanism also includes a lower support ring, a second movable groove, and a second damping column. The lower support ring is provided on the opposite side below the upper support ring, and the upper surface of the lower support ring is provided with a second movable groove. The second damping column is provided in the middle of the inner side of the second movable groove.

[0018] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0019] 1. This invention, through a linkage mechanism, utilizes the rotation of a scraper to scrape and clean the outer surfaces of the bottom rod and connecting rod. Its coordination with the heating cable for heating the main body of the sucker rod significantly reduces the possibility of wax deposition in crude oil. Furthermore, the sucker rod moves up and down synchronously, scraping wax without requiring downtime or additional work, achieving "dewaxing on operation." This adapts to conditions where crude oil continuously deposits wax. The automatic mechanical scraping directly removes the wax layer through rod movement, unaffected by temperature, ensuring stable dewaxing. Magnetic coupling rotation prevents leaks caused by direct mechanical transmission. Simultaneously, the retractable bottom rod and connecting rod buffer against downhole pressure fluctuations and wellbore bending, reducing the risk of stress fracture due to rigid structures.

[0020] 2. This invention, through a support mechanism, allows multiple sets of support arc plates to press against the inner wall of the sucker rod body, thereby increasing the moment of inertia and bending modulus of the rod section and preventing rod fatigue or fracture caused by local deformation. Furthermore, through a connecting mechanism, a sliding rod engages with a mating slot above, connecting the multiple sets of support arc plates into a single unit. This facilitates integrated support of the support arc plates, further enhancing the support strength of the rod. Simultaneously, the fixed rod, sliding rod, and support arc plates are all made of thermally conductive materials, improving heat dissipation from the heating cable and ensuring effective heating and dewaxing.

[0021] 3. The present invention, through the resistance mechanism, can limit the position of the support plate and limit the radial rotation capability between the connecting rod and the bottom rod after connection. When radial torsional force occurs between the upper and lower support rings and the support plate, the torsional force can be buffered and absorbed by the first and second damping columns, thereby improving the torsional resistance and deformation resistance of the sucker rod body, which is beneficial to ensuring the service life of the sucker rod body. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall external three-dimensional structure of the present invention;

[0023] Figure 2 This is a cross-sectional three-dimensional structural diagram of the connecting oil rod of the present invention;

[0024] Figure 3 This is a three-dimensional structural diagram of the linkage mechanism of the present invention;

[0025] Figure 4 This is a schematic diagram of the three-dimensional structure of the support disk of the present invention;

[0026] Figure 5 This is a cross-sectional perspective view of the second helical gear of the present invention.

[0027] Figure 6 This is a cross-sectional three-dimensional structural diagram of the bottom oil rod of the present invention;

[0028] Figure 7 This is a three-dimensional structural diagram of the support mechanism of the present invention;

[0029] Figure 8 This is a three-dimensional structural diagram of the connection mechanism of the present invention;

[0030] Figure 9 This is a schematic diagram of the three-dimensional structure of the resistance mechanism of the present invention.

[0031] Figure 10 For the present invention Figure 9 A schematic diagram of the three-dimensional structure viewed from below.

[0032] In the diagram: 1. Sucker rod body; 101. Bottom rod; 102. Sheath; 103. Connecting rod; 104. Heating cable; 2. Linkage mechanism; 201. Support plate; 202. First crankshaft rod; 203. First connecting worm gear; 204. First helical gear; 205. Outer connecting sleeve; 206. Upper connecting magnetic ring; 207. Fixing ring; 208. Outer slide rail; 209. Magnetic slider; 210. Scraper; 211. Second crankshaft rod; 212. Second connecting worm gear; 213. Second helical gear; 214. Inner connecting sleeve; 2 15. Lower connecting magnetic ring; 3. Support mechanism; 301. Wrapping ring; 302. Fixing rod; 303. First folding plate; 304. Sliding rod; 305. Supporting arc plate; 4. Connecting mechanism; 401. Fixing sleeve; 402. Second folding plate; 403. Sliding insert; 404. Mating slot; 5. Resistance mechanism; 501. Upper support ring; 502. First movable groove; 503. First damping column; 504. Rotating seat; 505. Fixing plate; 506. Lower support ring; 507. Second movable groove; 508. Second damping column. Detailed Implementation

[0033] 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.

[0034] To address the issue of relying solely on heating cable 104 to prevent crude oil wax deposition on the sucker rod, factors such as power outages or insufficient cable power can cause the deposited wax layer to harden, making it difficult to soften with subsequent heating. This necessitates additional hot washing or mechanical dewaxing. Furthermore, heating cable 104 only prevents wax deposition and cannot address the technical problem of scale buildup on the sucker rod surface. Figures 1-5 As shown, the following preferred technical solutions are provided:

[0035] A wax-resistant, electrically heated carbon fiber continuous sucker rod includes a sucker rod body 1 and a linkage mechanism 2 disposed in the middle of the inner side of the sucker rod body 1. The sucker rod body 1 includes a bottom sucker rod 101 disposed below the sucker rod body 1. The upper end of the bottom sucker rod 101 is provided with a wrapping sleeve 102, and the upper end of the bottom sucker rod 101 is provided with a connecting rod 103. A heating cable 104 is passed through the middle of the bottom sucker rod 101, and the heating cable 104 is connected to an outer connecting sleeve 205 and an inner connecting sleeve 214. The inner surface of the sleeve 102 is tightly fitted to the outer surface of the connecting rod 103. The heating cable 104 is electrically connected to the control part outside the sucker rod body 1 and integrates the existing heating wire, temperature sensor and communication module. It can heat the sucker rod body 1 to prevent crude oil from waxing on the sucker rod body 1, and can monitor and transmit the temperature of the sucker rod body 1 in real time. The bottom rod 101 and the connecting rod 103 are made of carbon fiber with an outer layer of graphene.

[0036] The linkage mechanism 2 includes a support plate 201 disposed in the middle of the inner side of the connecting oil rod 103. A first crankshaft rod 202 is installed on one side of the bottom of the support plate 201, and a first connecting worm 203 is disposed below the first crankshaft rod 202. A first helical gear 204 is meshed on one side of the first connecting worm 203, and an outer connecting sleeve 205 is fixed to the bottom of the first helical gear 204. An upper connecting magnetic ring 206 is disposed on the outside of the outer connecting sleeve 205, and a fixing ring 207 is disposed above and below the outer surface of the upper connecting magnetic ring 206.

[0037] An outer slide rail 208 is provided on the outer side of the upper connecting magnetic ring 206, and a magnetic slider 209 is provided on the surface of the outer slide rail 208. A scraper 210 is fixed on the upper and lower surfaces of the magnetic slider 209. A second crankshaft rod 211 is installed on the other side of the bottom of the support plate 201, and a second connecting worm 212 is provided at the bottom of the second crankshaft rod 211. A second helical gear 213 is meshed on one side of the second connecting worm 212, and an inner connecting sleeve 214 is fixed at the bottom of the second helical gear 213. A lower connecting magnetic ring 215 is fixed on the lower outer side of the inner connecting sleeve 214.

[0038] The first crankshaft rod 202 and the second crankshaft rod 211 are rotatably connected to the first connecting worm 203 and the second connecting worm 212, respectively, and the first connecting worm 203 and the second connecting worm 212 are rotatably connected to the side wall of the bottom oil rod 101. The outer diameter of the outer connecting sleeve 205 is larger than the outer diameter of the inner connecting sleeve 214.

[0039] The upper connecting magnetic ring 206 is slidably connected to the fixed ring 207, and the fixed ring 207 is fixedly connected to the inner wall of the bottom oil rod 101. The magnetic slider 209 and the scraper 210 are slidably connected to the outer slide rail 208, and the magnetic slider 209 is magnetically connected to the upper connecting magnetic ring 206. The inner surface of the scraper 210 is tightly attached to the outer surface of the bottom oil rod 101. There is a certain gap between the bottom oil rod 101 and the connecting oil rod 103, and the gap is covered by a wrapping sleeve 102. Through the linkage mechanism 2, the main body of the sucker rod 1 can be automatically scraped and cleaned.

[0040] When the sucker rod body 1 moves up and down in the wellbore to pump oil, the rod body of the sucker rod body 1 is subjected to tension and downward pressure during the up and down movement. This causes the bottom rod 101 and connecting rod 103, which divide the sucker rod body 1 into segments, to compress and retract during the up and down movement. The support plate 201 is set inside the connecting rod 103. It works in conjunction with the first crankshaft rod 202 and the second crankshaft rod 211, as well as the first connecting worm gear 203 and the second connecting worm gear 212 to connect the connecting rod 103 and the bottom rod 101. The principle of the first crankshaft rod 202 and the second crankshaft rod 211 is similar to that of the engine piston crankshaft. When the connecting rod 103 drives the support plate 201 to move up and down, the first crankshaft rod 202 and the second crankshaft rod 211 will be driven to move up and down, thereby enabling the first crankshaft rod 202 and the second crankshaft rod 211 to drive the first connecting worm gear 203 and the second connecting worm gear 212 to rotate.

[0041] When the first connecting worm 203 and the second connecting worm 212 are driven to rotate, they will respectively drive the first helical gear 204 and the second helical gear 213 to rotate. This, in turn, under the connection of the outer connecting sleeve 205 and the inner connecting sleeve 214, ultimately drives the upper connecting magnetic ring 206 and the lower connecting magnetic ring 215 to rotate. The upper connecting magnetic ring 206 and the lower connecting magnetic ring 215 are supported by two sets of fixed rings 207, and the lower connecting magnetic ring 215 is also provided with another set of outer slide rails 208, magnetic sliders 209, and scrapers 210. The upper connecting magnetic ring 206 and the lower connecting magnetic ring 215 are magnetically coupled to the outer magnetic sliders 209, so that when the upper connecting magnetic ring 206 and the lower connecting magnetic ring 215 rotate, they can respectively drive the upper connecting magnetic ring 206 and the lower connecting magnetic ring 215 to rotate. The magnetic slider 209 and the scraper 210 rotate circumferentially on the surface of the outer slide rail 208. This allows the scraper 210 to scrape and clean the outer surfaces of the bottom rod 101 and the connecting rod 103. The combination of this and the heating cable 104 heating the sucker rod body 1 can greatly reduce the possibility of crude oil waxing. Furthermore, the sucker rod body 1 moves up and down synchronously to scrape wax without stopping the machine or additional work, achieving "dewaxing on the go". This adapts to the working conditions of continuous crude oil waxing. The automatic mechanical scraping directly removes the wax layer through the movement of the rod body, which is not affected by temperature and can ensure the stability of dewaxing. The magnetic coupling rotation can prevent leakage caused by direct mechanical transmission. At the same time, the bottom rod 101 and the connecting rod 103 are telescopic, which can buffer the rod deformation caused by downhole pressure fluctuations and well bending, and reduce the risk of stress fracture caused by rigid structure.

[0042] To address the technical problem of hollow sucker rods being prone to bending and deformation due to insufficient strength during continuous oil pumping, thus reducing their lifespan, such as... Figure 1 and Figures 6-8 As shown, the following preferred technical solutions are provided:

[0043] A support mechanism 3 for supporting bending resistance is provided on the outer side of the middle part of the linkage mechanism 2. The support mechanism 3 includes a wrapping ring 301 provided on the outer surface of the inner connecting sleeve 214. A fixing rod 302 is fixedly provided on the outside of the wrapping ring 301, and a first folding plate 303 is provided on the middle of the inner side of the fixing rod 302. A sliding rod 304 is installed at the front end of the first folding plate 303, and a support arc plate 305 is fixed on the top of the sliding rod 304.

[0044] The upper and lower surfaces of the support mechanism 3 are provided with a connecting mechanism 4 for connection and reinforcement. The connecting mechanism 4 includes a fixed sleeve 401, a second folding plate 402, a sliding rod 403 and a mating slot 404. The second folding plate 402 is provided in the middle of the inner side of the fixed sleeve 401, and the sliding rod 403 is fixedly connected to the top of the second folding plate 402. The mating slot 404 is provided on the opposite side of the bottom of the fixed sleeve 401.

[0045] The fixed rod 302, the first folding plate 303, the sliding rod 304 and the supporting arc plate 305 are arranged in five sets around the wrapping ring 301. The sliding rod 304 is slidably connected to the fixed rod 302, and the sliding insert rod 403 is slidably connected to the fixed sleeve 401. The sliding insert rod 403 coincides with the vertical center line of the mating slot 404. The first folding plate 303 and the second folding plate 402 are both heat-deformable shape memory alloy metals, and the phase transformation temperature of the second folding plate 402 is greater than that of the first folding plate 303.

[0046] As the heating cable 104 heats and dewaxes the sucker rod body 1, the first folding plate 303 extends forward continuously as the temperature rises. This pushes the sliding rod 304 and the supporting arc plate 305 forward, ultimately causing the multiple sets of supporting arc plates 305 to press against the inner wall of the sucker rod body 1. This increases the moment of inertia and bending modulus of the rod section, preventing rod fatigue or fracture caused by local deformation. After the supporting arc plate 305 is in place, the temperature continues to rise, at which point the second folding plate... 402 will continuously extend forward, causing the second folding plate 402 to push the sliding rod 403 upward, ultimately allowing the sliding rod 403 to engage with the upper-set mating slot 404. This allows the multiple sets of upper and lower supporting arc plates 305 to be connected as a whole, thus facilitating the overall support of the supporting arc plates 305 and further enhancing the support strength of the rod. At the same time, the fixed rod 302, sliding rod 304, and supporting arc plates 305 are all made of heat-conducting materials, which can improve the heat dissipation of the heating cable 104 and ensure the heating and dewaxing effect.

[0047] To address the technical problem of the rod body easily twisting under stress during prolonged oil pumping operations, thus affecting its overall strength, such as... Figure 2 , Figure 9 and Figure 10 As shown, the following preferred technical solutions are provided:

[0048] The top outer side of the linkage mechanism 2 is provided with a resistance mechanism 5 for rotational anti-torsion. The resistance mechanism 5 includes an upper support ring 501 and a first movable groove 502. Four sets of first movable grooves 502 are opened on the bottom surface of the upper support ring 501, and the upper support ring 501 is fixedly connected to the connecting oil rod 103.

[0049] A first damping column 503 is provided in the middle of the inner side of the first movable groove 502, and a rotating seat 504 is installed at the front and rear ends of the first damping column 503. A fixing plate 505 is connected to one side of the rotating seat 504, and the fixing plate 505 is fixedly connected to the support plate 201.

[0050] A lower support ring 506 is provided on the opposite side below the upper support ring 501, and a second movable groove 507 is provided on the upper surface of the lower support ring 506. A second damping column 508 is provided in the middle of the inner side of the second movable groove 507. The lower support ring 506 is fixedly connected to the connecting oil rod 103. The resistance mechanism 5 can improve the torsional resistance of the rod.

[0051] The upper support ring 501 and the lower support ring 506 are positioned above and below the support plate 201 and are slidably connected to the support plate 201, which can restrict the position of the support plate 201. The four sets of first movable grooves 502 and second movable grooves 507 are provided on the upper and lower sides, and each of the first movable grooves 502 and the second movable grooves 507 is provided with a first damping column 503, a rotating seat 504 and a fixing plate 505, which can restrict the radial rotation ability between the connecting rod 103 and the bottom rod 101 after connection. When radial torsional force occurs between the upper support ring 501 and the lower support ring 506 and the support plate 201, the torsional force can be buffered and absorbed by the first damping column 503 and the second damping column 508, thereby improving the torsional resistance and deformation resistance of the sucker rod body 1, which is conducive to ensuring the service life of the sucker rod body 1.

[0052] 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.

[0053] 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 wax-resistant, electrically heated carbon fiber continuous sucker rod, comprising a sucker rod body (1) and a linkage mechanism (2), characterized in that: The linkage mechanism (2) for automatic scraping is located in the middle of the inner side of the sucker rod body (1). The linkage mechanism (2) includes a support plate (201), a first crankshaft rod (202), a first connecting worm gear (203), a first helical gear (204), an outer connecting sleeve (205), an upper connecting magnetic ring (206), and a fixing ring (207). The first crankshaft rod (202) is installed on one side of the bottom of the support plate (201), and the first connecting worm gear (203) is provided below the first crankshaft rod (202). The first helical gear (204) is meshed on one side of the first connecting worm gear (203), and the outer connecting sleeve (205) is fixed at the bottom of the first helical gear (204). The upper connecting magnetic ring (206) is provided on the outside of the outer connecting sleeve (205), and the fixing ring (207) is provided above and below the outer surface of the upper connecting magnetic ring (206). An outer slide rail (208) is provided on the outer side of the upper connecting magnetic ring (206), and a magnetic slider (209) is provided on the surface of the outer slide rail (208). A scraper (210) is fixed on the upper and lower surfaces of the magnetic slider (209). A second crankshaft (211) is installed on the other side of the bottom of the support plate (201), and a second connecting worm (212) is provided at the bottom of the second crankshaft (211). A second helical gear (213) is meshed on one side of the second connecting worm (212), and an inner connecting sleeve (214) is fixed at the bottom of the second helical gear (213). A lower connecting magnetic ring (215) is fixed on the lower outer side of the inner connecting sleeve (214). The main body (1) of the sucker rod includes a bottom rod (101), a sheath (102), a connecting rod (103) and a heating cable (104). The upper end of the bottom rod (101) is provided with a sheath (102), and the upper end of the bottom rod (101) is provided with a connecting rod (103). The first crankshaft rod (202) and the second crankshaft rod (211) are rotatably connected to the first connecting worm (203) and the second connecting worm (212), respectively, and the first connecting worm (203) and the second connecting worm (212) are rotatably connected to the side wall of the bottom oil rod (101). The outer diameter of the outer connecting sleeve (205) is larger than the outer diameter of the inner connecting sleeve (214). The upper connecting magnetic ring (206) is slidably connected to the fixed ring (207), and the fixed ring (207) is fixedly connected to the inner wall of the bottom oil rod (101). The magnetic slider (209) and the scraper (210) are slidably connected to the outer slide rail (208), and the magnetic slider (209) is magnetically connected to the upper connecting magnetic ring (206). The inner surface of the scraper (210) is tightly fitted to the outer surface of the bottom oil rod (101).

2. The anti-waxing electrically heated carbon fiber continuous sucker rod according to claim 1, characterized in that: A heating cable (104) is provided through the middle of the bottom oil rod (101), and the heating cable (104) is connected to the outer connecting sleeve (205) and the inner connecting sleeve (214).

3. The anti-waxing electrically heated carbon fiber continuous sucker rod according to claim 1, characterized in that: The linkage mechanism (2) is provided with a support mechanism (3) for supporting bending resistance on the outer side of the middle part. The support mechanism (3) includes a wrapping ring (301), a fixing rod (302), a first folding plate (303), a sliding rod (304), and a support arc plate (305). The wrapping ring (301) is fixedly provided with a fixing rod (302) on the outside, and the fixing rod (302) is provided with a first folding plate (303) on the middle of its inner side. The first folding plate (303) is provided with a sliding rod (304) at the front end, and the top of the sliding rod (304) is fixed with a support arc plate (305).

4. The anti-waxing electrically heated carbon fiber continuous sucker rod according to claim 3, characterized in that: The upper and lower surfaces of the support mechanism (3) are provided with a connecting mechanism (4) for connection and reinforcement. The connecting mechanism (4) includes a fixed sleeve (401), a second folding plate (402), a sliding rod (403), and a mating slot (404). The inner middle part of the fixed sleeve (401) is provided with the second folding plate (402), and the top of the second folding plate (402) is fixedly connected with the sliding rod (403). The bottom opposite side of the fixed sleeve (401) is provided with a mating slot (404).

5. The anti-waxing electrically heated carbon fiber continuous sucker rod according to claim 4, characterized in that: The fixed rod (302), the first folding plate (303), the sliding rod (304) and the supporting arc plate (305) are arranged in five sets around the wrapping ring (301), and the sliding rod (304) is slidably connected to the fixed rod (302). The sliding insert (403) is slidably connected to the fixed sleeve (401), and the sliding insert (403) coincides with the vertical center line of the mating slot (404).

6. The anti-waxing electrically heated carbon fiber continuous sucker rod according to claim 2, characterized in that: The top outer side of the linkage mechanism (2) is provided with a resistance mechanism (5) for rotational anti-torsion. The resistance mechanism (5) includes an upper support ring (501) and a first movable groove (502). The bottom surface of the upper support ring (501) is provided with four sets of first movable grooves (502), and the upper support ring (501) is fixedly connected to the connecting oil rod (103).

7. The anti-waxing electrically heated carbon fiber continuous sucker rod according to claim 6, characterized in that: The resistance mechanism (5) further includes a first damping column (503), a rotating seat (504) and a fixed plate (505). The first damping column (503) is provided in the middle of the inner side of the first movable groove (502), and the rotating seat (504) is installed at the front and rear ends of the first damping column (503). The fixed plate (505) is connected to one side of the rotating seat (504), and the fixed plate (505) is fixedly connected to the support plate (201).

8. The anti-waxing electrically heated carbon fiber continuous sucker rod according to claim 6, characterized in that: The resistance mechanism (5) further includes a lower support ring (506), a second movable groove (507), and a second damping column (508). The lower support ring (506) is provided on the opposite side below the upper support ring (501), and the upper surface of the lower support ring (506) is provided with a second movable groove (507). The second damping column (508) is provided in the middle of the inner side of the second movable groove (507).

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