An apparatus for detecting damage to an oil production riser

Abstract

The present invention discloses a damage detection device for an oil production riser, belonging to the technical field of pipeline flaw detection. An inner rotating cylinder is rotatably arranged on the top of a base. An outer rotating cylinder is movably installed on the outer wall of the inner rotating cylinder. Symmetrical swing rods are fixedly arranged on both sides of the inner rotating cylinder. Swing seats are movably installed at both ends of the swing rods. A locking hoop is fixedly connected to the top of the swing seat. A plurality of rotating seats are arranged on the inner wall of the main housing. A linkage rod is installed on the rotating seat. A first swing arm is installed at the end of the linkage rod. A second swing arm is movably installed at the end of the first swing arm. A detection instrument is installed on the top of the lifting plate. A detection channel matching the lifting plate is opened in the middle of the top cover. In the present invention, a linkage engagement ring can synchronously drive a plurality of bevel gears and the first swing arm to rotate. When the lifting plate drives the detection instrument to lift outward, at this time, a plurality of swing gears drive the swing arc plate to also rotate clockwise and open the detection channel. This design improves safety and practicability.

Description

Technical Field

[0001] The present invention relates to the technical field of pipeline flaw detection, and in particular to a damage detection device for an oil production riser. Background Art

[0002] An oil production riser is a key pipeline system used in oil extraction (especially offshore oil and gas development) to connect subsea oil wells to offshore production platforms or floating production systems (such as FPSO, semi-submersible platforms, etc.). It is mainly used to safely and efficiently transport crude oil, natural gas or mixed fluids from subsea reservoirs to surface facilities, and may also undertake other auxiliary functions. The oil production riser has strict quality requirements during production and operation, generally requiring high pressure-bearing capacity and high tightness. Therefore, it is necessary to conduct damage detection on it before use, especially to detect cracks on the outer wall.

[0003] Chinese patent application with publication number CN119147646A discloses a pipeline damage detection device, including a detector, on which an ultrasonic probe is installed through a wire, and further including: a mounting plate for carrying the detector, and a clamping bracket is slidably mounted on the mounting plate. When in use, the detector is placed on the mounting plate, and the ultrasonic probe is placed on the clamping bracket. During use, by rotating the threaded rod to abut against the abutting plate, the abutting plate and the fixing plate clamp the pipeline through the rotating plate. At this time, rotating the rotating plate can make the pipeline rotate while being clamped. The ultrasonic probe is clamped and fixed by the clamping bracket, reducing the possibility of the ultrasonic probe shaking during use, thereby increasing the stability of the device during use. After use, rotate the side plate to reduce the area occupied by the entire mounting plate, facilitating the carrying of the device.

[0004] However, the above-disclosed pipeline damage detection device has general automation and freedom degrees. During use, it cannot freely adjust the deflection and swing angles of the instrument according to actual needs, and it cannot automatically store the instrument in a non-working state, lacking a linkage storage structure. Summary of the Invention

[0005] The purpose of the present invention is to provide a damage detection device for an oil production riser to solve the problems in the prior art that the automation degree and freedom degree of the pipeline damage detection device are general, it cannot freely adjust the deflection and swing angles of the instrument according to actual needs during use, and it cannot automatically store the instrument in a non-working state, lacking a linkage storage structure.

[0006] To achieve the above object, the technical solution of the present invention is: a damage detection device for an oil production riser, comprising an adjustment mechanism and a detection mechanism. The adjustment mechanism includes a base, on the top of which an inner rotating cylinder is rotatably arranged. An outer rotating cylinder is movably installed on the outer wall of the inner rotating cylinder. Symmetric swing rods are fixedly arranged on both sides of the inner rotating cylinder. Swing seats are movably installed at both ends of the swing rods. A locking hoop for installing the detection mechanism is fixedly connected to the top of the swing seat. When the inner rotating cylinder and the outer rotating cylinder rotate and cooperate in different ways, the deflection and rotation of the detection mechanism can be realized. The detection mechanism includes a main housing and a top cover. A plurality of rotating seats are arranged on the inner wall of the main housing. A linkage rod is installed on the rotating seat. A first swing arm is installed at the end of the linkage rod. A second swing arm is movably installed at the end of the first swing arm. A lifting plate is movably connected between the second swing arms. A detection instrument is installed on the top of the lifting plate. A detection channel cooperating with the lifting plate is opened in the middle of the top cover. When the lifting plate drives the detection instrument to lift outwards, the top cover automatically opens the detection channel.

[0007] As a further scheme of the present invention: a linkage meshing ring is rotatably arranged on the inner wall of the main housing. The linkage meshing ring is composed of two parts: a first meshing tooth vertically downward from the top and a second meshing tooth horizontally in the bottom direction. A bevel gear cooperating with the first meshing tooth is installed in the middle of the linkage rod.

[0008] As a further scheme of the present invention: a plurality of mounting bosses are arranged on the inner wall of the main housing. A limiting rail is arranged on the inner wall of the mounting boss. A limiting groove cooperating with it is opened on the outer wall of the linkage meshing ring.

[0009] As a further scheme of the present invention: a support ring is fixedly arranged on the inner wall of the top cover. A double gear ring is rotatably arranged on the top of the support ring. The double gear ring includes two parts: an outer gear ring and an inner gear ring. A plurality of swing gears meshing with the inner gear ring are also installed inside the support ring. A plurality of mutually cooperating swing arc plates are fixedly arranged in the middle of the swing gear.

[0010] As a further scheme of the present invention: a mounting seat is also arranged on the inner wall of the main housing. A transmission rod is movably installed on the mounting seat. A first transmission gear meshing with the outer gear ring is installed at the top of the transmission rod. A second transmission gear meshing with the second meshing tooth is installed at the bottom of the transmission rod.

[0011] As a further scheme of the present invention: a mounting cross plate is also arranged on the inner wall of the main housing. A driving motor is installed on the mounting cross plate. A driving gear meshing with the second meshing tooth is installed at the output end of the driving motor.

[0012] As a further solution of the present invention: a first deflection gear is installed on the outer wall of the inner rotating cylinder, a linkage member is installed on the outer wall of the outer rotating cylinder, the linkage member includes a second deflection gear and a first bevel gear fixedly arranged on the top thereof, and a second bevel gear meshing with the first bevel gear is fixedly installed on the inner wall of the swing seat.

[0013] As a further solution of the present invention: an equipment bin is arranged at the bottom of the base, a symmetric adjusting motor one and an adjusting motor two are installed in the equipment bin, an adjusting gear one meshing with the first deflection gear is installed at the output end of the adjusting motor one, and an adjusting gear two meshing with the second deflection gear is installed at the output end of the adjusting motor two.

[0014] As a further solution of the present invention: a T-shaped rail is fixedly arranged at the bottom of the inner rotating cylinder, and a T-shaped groove matching with it is opened on the top of the base; an installation convex ring is arranged on the outer wall of the inner rotating cylinder, and an installation groove matching with it is opened on the inner wall of the outer rotating cylinder.

[0015] As a further solution of the present invention: a bearing matching with the rotating plate is installed in the middle of the rotating plate, and a driven gear is installed at the bottom of the rotating plate; an installation frame is fixedly arranged at the bottom of the lifting plate, a rotating motor is installed on the installation frame, and a special-shaped gear matching with the driven gear is installed at the output end of the rotating motor.

[0016] As a further solution of the present invention: a ring rail is arranged on the top of the support ring, and a ring groove matching with it is opened at the bottom of the double-toothed ring.

[0017] As a further solution of the present invention: three groups of cylinders are installed at the bottom of the bottom cover, and a conical support leg facing downward is installed at the output end of the cylinder.

[0018] As a further solution of the present invention: a plurality of screw holes are opened on the top of the main housing, a plurality of bolts are threadedly installed on the top cover, and the top cover is installed on the top of the main housing through the bolts.

[0019] As a further solution of the present invention: a plurality of cylinders are arranged on the outer wall of the base, a conical support leg is arranged at the output end of the cylinder; a control panel is also arranged on the base, a sensor is also installed at the bottom of the equipment bin; a protective cover is also installed on the base.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] 1. The present invention can synchronously drive multiple sets of bevel gears and the first swing arm to rotate through the linkage engagement ring. Driven by multiple sets of second swing arms, the lifting plate can drive the detection instrument to lift outward. Under the cooperation of the second transmission gear and the first transmission gear, the double-toothed ring will rotate clockwise. At this time, multiple sets of swing gears drive the swing arc plate to also rotate clockwise and open the detection channel. The lifting plate drives the detection instrument to extend out of the detection channel and detect the stacked oil production risers. This design improves the safety and practicability of the damage detection device for oil production risers.

[0022] 2. The present invention can quickly adjust the angle and position of the detection mechanism by adjusting the first adjusting motor and the second adjusting motor, so as to adaptively adjust the detection angle according to requirements. When the first adjusting motor drives the first deflection gear to rotate and the second adjusting motor is not started, the swing seat rotates and swings at this time. When the second adjusting motor drives the second deflection gear to rotate and the first adjusting motor is not started, the swing seat quickly swings under the cooperation of the first bevel gear and the second bevel gear at this time. When the first adjusting motor and the second adjusting motor are started synchronously and have the same rotational speed, the swing seat rotates freely at this time. Complex movements of the detection mechanism can be achieved through various driving and rotational speed combinations. This design improves the degree of freedom and detection effect of the damage detection device for oil production risers. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The present invention will be further explained below with reference to the drawings and embodiments:

[0024] Figure 1 is the three-dimensional structure diagram of the present invention;

[0025] Figure 2 is the three-dimensional structure diagram of the adjusting mechanism in the present invention;

[0026] Figure 3 is the cross-sectional view of the adjusting mechanism in the present invention;

[0027] Figure 4 is Figure 3 the enlarged structure diagram at A in

[0028] Figure 5 is the internal three-dimensional structure diagram of the detection mechanism in the present invention;

[0029] Figure 6 is the cross-sectional view of the main housing in the present invention;

[0030] Figure 7 is the three-dimensional structure diagram of the linkage engagement ring in the present invention;

[0031] Figure 8 is the three-dimensional structure diagram of the top cover in the present invention;

[0032] Figure 9 is the cross-sectional view of the top cover in the present invention;

[0033] Figure 10 It is a three-dimensional structure diagram of the double-toothed ring in the present invention.

[0034] Explanation of reference numerals in the drawings:

[0035] 1. Adjusting mechanism; 101. Base; 102. Equipment bin; 103. Control panel; 104. Sensor; 105. Cylinder; 106. Conical leg; 107. Inner rotating cylinder; 108. Outer rotating cylinder; 109. Swing rod; 110. Swing seat; 111. Locking hoop; 112. Installation boss; 113. Installation groove; 114. T-shaped rail; 115. T-shaped groove; 116. Deflection gear one; 117. Linkage member; 118. Deflection gear two; 119. First bevel gear; 120. Second bevel gear; 121. Adjusting motor one; 122. Adjusting gear one; 123. Adjusting motor two; 124. Adjusting gear two; 125. Protective cover;

[0036] 2. Detection mechanism; 201. Main housing; 202. Top cover; 203. Installation boss; 204. Linkage engagement ring; 205. Engagement tooth one; 206. Engagement tooth two; 207. Limit rail; 208. Limit groove; 209. Rotating seat; 210. Linkage rod; 211. Bevel gear; 212. First swing arm; 213. Second swing arm; 214. Lifting plate; 215. Detection instrument; 216. Installation cross plate; 217. Driving motor; 218. Driving gear; 219. Detection channel; 220. Support ring; 221. Double-toothed ring; 222. Outer toothed ring; 223. Inner toothed ring; 224. Swing gear; 225. Swing arc plate; 226. Installation seat; 227. Transmission rod; 228. Transmission gear one; 229. Transmission gear two. Detailed implementation manners

[0037] Next, the technical solutions of the present invention will be described clearly and completely in conjunction with the attached Figures 1 to 10 drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0038] The present invention provides an improved damage detection device for an oil production riser, as Figures 1 - 10As shown in the figure, it includes an adjustment mechanism 1 and a detection mechanism 2. The adjustment mechanism 1 includes a base 101. An inner rotating cylinder 107 is rotatably arranged on the top of the base 101. An outer rotating cylinder 108 is movably installed on the outer wall of the inner rotating cylinder 107. Symmetric swing rods 109 are fixedly arranged on both sides of the inner rotating cylinder 107. Swing seats 110 are movably installed at both ends of the swing rods 109. A locking hoop 111 for installing the detection mechanism 2 is fixedly connected to the top of the swing seat 110. When the inner rotating cylinder 107 and the outer rotating cylinder 108 rotate and cooperate in different ways, the deflection and rotation of the detection mechanism 2 can be realized. The detection mechanism 2 includes a main housing 201 and a top cover 202. Multiple rotating seats 209 are arranged on the inner wall of the main housing 201. A linkage rod 210 is installed on the rotating seat 209. A first swing arm 212 is installed at the end of the linkage rod 210. A second swing arm 213 is movably installed at the end of the first swing arm 212. A lifting plate 214 is movably connected between the second swing arms 213. A detection instrument 215 is installed on the top of the lifting plate 214. A detection channel 219 cooperating with the lifting plate 214 is opened in the middle of the top cover 202. When the lifting plate 214 drives the detection instrument 215 to lift outward, the top cover 202 automatically opens the detection channel 219.

[0039] In this embodiment: The damage detection device for the oil production riser is mainly divided into two parts: an adjustment mechanism 1 and a detection mechanism 2. When the device is in use, first place the device on the ground of the oil production riser stacking site, and then start multiple cylinders 105 through the control panel 103 and adjust the length of the conical legs 106, so that the device remains in a horizontal state. When the driving gear 218 drives the linkage engagement ring 204 to rotate counterclockwise, the first swing arm 212 and the second swing arm 213 drive the lifting plate 214 to drive the detection instrument 215 to lift outward. At this time, the second transmission gear 229 and the first transmission gear 228 rotate clockwise, and the double-toothed ring 221 also rotates clockwise. Multiple swing gears 224 drive the swing arc plate 225 to rotate clockwise and open the detection channel 219. The lifting plate 214 drives the detection instrument 215 to extend out of the detection channel 219 and perform multiple and cyclic detections on the surrounding risers. When it is necessary to adjust the angle and position of the detection instrument 215, start the adjustment motor one 121 and the adjustment motor two 123, and complex movements of the detection mechanism 2 can be realized through various drive and speed combinations.

[0040] Refer to the appendix Figure 5 - appendix Figure 7 On the inner wall of the main housing 201, a linkage engagement ring 204 is rotatably arranged. The linkage engagement ring 204 is composed of two parts: a first engagement tooth 205 vertically extending from the top and a second engagement tooth 206 horizontally extending from the bottom. A bevel gear 211 cooperating with the first engagement tooth 205 is installed in the middle of the linkage rod 210.

[0041] In this embodiment, in order to convert the rotation in the horizontal direction into the reciprocating motion of the lifting plate 214, the linkage meshing ring 204 structure is designed.

[0042] Refer to the appendix Figure 6 - appendix Figure 7 , a plurality of groups of mounting bosses 203 are arranged on the inner wall of the main housing 201, a limiting rail 207 is arranged on the inner wall of the mounting boss 203, and a limiting groove 208 matched with it is arranged on the outer wall of the linkage meshing ring 204.

[0043] In this embodiment, in order to install the linkage meshing ring 204 and ensure its free rotation relative to the inner wall of the main housing 201, so as to realize the lifting of the lifting plate 214 and the opening of the top cover 202, the limiting rail 207 and the limiting groove 208 structure that cooperate with each other are designed.

[0044] Refer to the appendix Figure 8 - appendix Figure 10 , a support ring 220 is fixedly arranged on the inner wall of the top cover 202, a double gear ring 221 is rotatably arranged on the top of the support ring 220, and the double gear ring 221 includes two parts, an outer gear ring 222 and an inner gear ring 223; a plurality of swing gears 224 meshing with the inner gear ring 223 are also installed on the inner side of the support ring 220, and a plurality of mutually cooperating swing arc plates 225 are fixedly arranged in the middle of the swing gears 224; an installation seat 226 is also arranged on the inner wall of the main housing 201, a transmission rod 227 is movably installed on the installation seat 226, a first transmission gear 228 meshing with the outer gear ring 222 is installed on the top of the transmission rod 227, and a second transmission gear 229 meshing with the meshing tooth 206 is installed on the bottom of the transmission rod 227.

[0045] In this embodiment: When the lifting plate 214 moves, in order to automatically synchronously open and close the top cover 202, so as to achieve fully automatic operation and storage, a transmission rod 227 structure is designed. When the driving gear 218 drives the linkage engagement ring 204 to rotate counterclockwise, the first swing arm 212 and the second swing arm 213 drive the lifting plate 214 to drive the detection instrument 215 to lift outward. At this time, the second transmission gear 229 and the first transmission gear 228 rotate clockwise, and the double-toothed ring 221 also rotates clockwise. Multiple sets of swing gears 224 drive the swing arc plate 225 to rotate clockwise and open the detection channel 219, and the lifting plate 214 drives the detection instrument 215 to extend out of the detection channel 219 and detect the risers stacked around. When the driving gear 218 drives the linkage engagement ring 204 to rotate clockwise, the first swing arm 212 and the second swing arm 213 drive the lifting plate 214 to drive the detection instrument 215 to descend inward. At this time, the second transmission gear 229 and the first transmission gear 228 rotate counterclockwise, and the double-toothed ring 221 also rotates counterclockwise. Multiple sets of swing gears 224 drive the swing arc plate 225 to rotate counterclockwise and close the detection channel 219, and the lifting plate 214 drives the detection instrument 215 to retract into the interior of the main housing 201.

[0046] Refer to the appendix Figure 5 - appendix Figure 6 On the inner wall of the main housing 201, there is also an installation cross plate 216. A driving motor 217 is installed on the installation cross plate 216, and the output end of the driving motor 217 is installed with a driving gear 218 that meshes with the second meshing tooth 206.

[0047] In this embodiment: In order to drive the linkage engagement ring 204 to rotate, so as to lift or lower the detection instrument 215, a driving motor 217 structure is designed.

[0048] Refer to the appendix Figure 1 - appendix Figure 3 On the outer wall of the inner rotating cylinder 107, a deflection gear one 116 is installed. On the outer wall of the outer rotating cylinder 108, a linkage member 117 is installed. The linkage member 117 includes a deflection gear two 118 and a first bevel gear 119 fixedly arranged on its top. On the inner wall of the swing seat 110, a second bevel gear 120 that meshes with the first bevel gear 119 is fixedly installed; at the bottom of the base 101, there is an equipment compartment 102. In the equipment compartment 102, symmetric adjustment motors one 121 and two 123 are installed. The output end of the adjustment motor one 121 is installed with an adjustment gear one 122 that meshes with the deflection gear one 116, and the output end of the adjustment motor two 123 is installed with an adjustment gear two 124 that meshes with the deflection gear two 118.

[0049] In this embodiment: When the adjusting motor 121 drives the deflection gear 116 to rotate and the adjusting motor 123 is not started, the swinging seat 110 drives the main housing 201 to rotate and swing at this time. When the adjusting motor 123 drives the deflection gear 118 to rotate and the adjusting motor 121 is not started, the swinging seat 110 drives the main housing 201 to swing rapidly under the cooperation of the first bevel gear 119 and the second bevel gear 120 at this time. When the adjusting motor 121 and the adjusting motor 123 are started synchronously and have the same rotational speed, the swinging seat 110 drives the main housing 201 to rotate freely at this time.

[0050] Refer to the appendix Figure 3 - appendix Figure 4 , a T-shaped rail 114 is fixedly arranged at the bottom of the inner rotating cylinder 107, and a T-shaped groove 115 matching with it is formed at the top of the base 101; an installation convex ring 112 is arranged on the outer wall of the inner rotating cylinder 107, and an installation groove 113 matching with it is formed on the inner wall of the outer rotating cylinder 108.

[0051] In this embodiment: In order to ensure the free rotation of the inner rotating cylinder 107 relative to the top of the base 101, a T-shaped rail 114 and a T-shaped groove 115 structure that cooperate with each other are designed. In order to ensure the free rotation of the outer rotating cylinder 108 relative to the inner rotating cylinder 107, an installation convex ring 112 and an installation groove 113 structure that cooperate with each other are designed.

[0052] Refer to the appendix Figure 1 - appendix Figure 3 , multiple groups of cylinders 105 are arranged on the outer wall of the base 101, and a conical support leg 106 is arranged at the output end of the cylinder 105; a control panel 103 is also arranged on the base 101, and a sensor 104 is also installed at the bottom of the equipment bin 102; a protective cover 125 is also installed on the base 101.

[0053] In this embodiment: After the equipment is placed on the ground, in order to ensure that the equipment remains in a horizontal state, a structure of multiple groups of conical support legs 106 is designed. In order to monitor the levelness of the equipment in real time, a sensor 104 structure is designed. In order to prevent the transmission structure from being directly exposed outside, a protective cover 125 structure is designed. When the linkage engagement ring 204 rotates, in order to ensure the smooth rising and falling of the lifting plate 214 and avoid jamming, the first swing arm 212 and the second swing arm 213 on the two sides corresponding to the lifting plate 214 are symmetrically installed.

[0054] Working principle of the present invention: When the device is in use, first place the device on the ground of the production riser stacking site, and then start multiple groups of cylinders 105 through the control panel 103 and adjust the length of the conical legs 106, so that the device remains in a horizontal state. When the driving gear 218 drives the linkage engagement ring 204 to rotate counterclockwise, the first swing arm 212 and the second swing arm 213 drive the lifting plate 214 to drive the detection instrument 215 to lift outward. At this time, the second transmission gear 229 and the first transmission gear 228 rotate clockwise, and the double gear ring 221 also rotates clockwise. Multiple groups of swing gears 224 drive the swing arc plate 225 to rotate clockwise and open the detection channel 219, and the lifting plate 214 drives the detection instrument 215 to extend out of the detection channel 219 and perform multiple and cyclic detections on the surrounding risers. When it is necessary to adjust the angle and position of the detection instrument 215, start the first adjustment motor 121 and the second adjustment motor 123, and complex movements of the detection mechanism 2 can be achieved through various drive and speed combinations.

[0055] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be obvious to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to these embodiments shown herein, but rather to the widest scope consistent with the principles and creative features disclosed herein.

Claims

1. An apparatus for detecting damage to an oil production riser, comprising an adjustment mechanism (1) and a detection mechanism (2), characterized in that: The adjusting mechanism (1) includes a base (101). An inner rotating cylinder (107) is rotatably arranged on the top of the base (101). An outer rotating cylinder (108) is movably installed on the outer wall of the inner rotating cylinder (107). Symmetric swing rods (109) are fixedly arranged on both sides of the inner rotating cylinder (107). Swing seats (110) are movably installed at both ends of the swing rods (109). A locking hoop (111) for installing the detection mechanism (2) is fixedly connected to the top of the swing seat (110); when the inner rotating cylinder (107) and the outer rotating cylinder (108) are rotationally matched in different ways, deflection and rotation of the detection mechanism (2) can be realized; The detection mechanism (2) includes a main housing (201) and a top cover (202). Multiple sets of rotating seats (209) are arranged on the inner wall of the main housing (201). A linkage rod (210) is installed on the rotating seat (209). A first swing arm (212) is installed at the end of the linkage rod (210). A second swing arm (213) is movably installed at the end of the first swing arm (212). A lifting plate (214) is movably connected between the second swing arms (213); a detection instrument (215) is installed on the top of the lifting plate (214); a detection channel (219) matching the lifting plate (214) is opened in the middle of the top cover (202); when the lifting plate (214) drives the detection instrument (215) to lift outward, the top cover (202) automatically opens the detection channel (219); A linkage meshing ring (204) is rotatably arranged on the inner wall of the main housing (201). The linkage meshing ring (204) consists of two parts: a first meshing tooth (205) vertically downward from the top and a second meshing tooth (206) horizontally in the bottom direction; a bevel gear (211) matching the first meshing tooth (205) is installed in the middle of the linkage rod (210).

2. The damage detection device for an oil production riser according to claim 1, characterized in that: Multiple sets of mounting bosses (203) are arranged on the inner wall of the main housing (201). A limiting rail (207) is arranged on the inner wall of the mounting boss (203). A limiting groove (208) matching it is opened on the outer wall of the linkage meshing ring (204).

3. The damage detection device for an oil production riser according to claim 1, wherein: A support ring (220) is fixedly arranged on the inner wall of the top cover (202). A double gear ring (221) is rotatably arranged on the top of the support ring (220). The double gear ring (221) includes two parts: an outer gear ring (222) and an inner gear ring (223); multiple sets of swing gears (224) meshing with the inner gear ring (223) are also installed inside the support ring (220). Multiple sets of mutually cooperating swing arc plates (225) are fixedly arranged in the middle of the swing gear (224).

4. A damage detection device for an oil production riser according to claim 3, characterized in that: An installation seat (226) is further provided on the inner wall of the main housing (201). A transmission rod (227) is movably installed on the installation seat (226). A first transmission gear (228) meshing with the external gear ring (222) is installed at the top of the transmission rod (227). A second transmission gear (229) meshing with the second meshing tooth (206) is installed at the bottom of the transmission rod (227).

5. A damage detection device for an oil production riser according to any one of claims 1-4, characterized in that: An installation cross plate (216) is further provided on the inner wall of the main housing (201). A driving motor (217) is installed on the installation cross plate (216). A driving gear (218) meshing with the second meshing tooth (206) is installed at the output end of the driving motor (217).

6. A damage detection device for an oil production riser according to any one of claims 1-4, characterized in that: A first deflection gear (116) is installed on the outer wall of the inner rotating cylinder (107). A linkage member (117) is installed on the outer wall of the outer rotating cylinder (108). The linkage member (117) includes a second deflection gear (118) and a first bevel gear (119) fixedly arranged at the top thereof. A second bevel gear (120) meshing with the first bevel gear (119) is fixedly installed on the inner wall of the swing seat (110).

7. The damage detection device for an oil production riser according to claim 6, characterized in that: A device bin (102) is provided at the bottom of the base (101). A symmetric adjustment motor one (121) and an adjustment motor two (123) are installed in the device bin (102). An adjustment gear one (122) meshing with the first deflection gear (116) is installed at the output end of the adjustment motor one (121). An adjustment gear two (124) meshing with the second deflection gear (118) is installed at the output end of the adjustment motor two (123).

8. A damage detection device for an oil production riser according to any one of claims 1-4, characterized in that: A T-shaped rail (114) is fixedly arranged at the bottom of the inner rotating cylinder (107). A T-shaped groove (115) matching with it is formed at the top of the base (101); an installation convex ring (112) is arranged on the outer wall of the inner rotating cylinder (107). An installation groove (113) matching with it is formed on the inner wall of the outer rotating cylinder (108).

9. The damage detection device for an oil production riser according to claim 7, wherein: Multiple groups of air cylinders (105) are arranged on the outer wall of the base (101). A conical supporting leg (106) is arranged at the output end of the air cylinder (105); a control panel (103) is further arranged on the base (101). A sensor (104) is further installed at the bottom of the device bin (102); a protective cover (125) is further installed on the base (101).

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