Damage detection device for oil production riser

Abstract

The invention discloses a damage detection device for an oil production vertical pipe, and belongs to the technical field of pipeline flaw detection. The top of a base is rotatably provided with an inner rotating cylinder, the outer wall of the inner rotating cylinder is movably provided with an outer rotating cylinder, the two sides of the inner rotating cylinder are fixedly provided with symmetrical swing rods, and the two ends of each swing rod are movably provided with swing seats; the top of the swing seat is fixedly connected with a locking hoop; a plurality of groups of rotating seats are arranged on the inner wall of the main shell, linkage rods are mounted on the rotating seats, first swing arms are mounted at the tail ends of the linkage rods, second swing arms are movably mounted at the tail ends of the first swing arms, and a detection instrument is mounted at the top of the lifting plate; a detection channel matched with the lifting plate is formed in the middle of the top cover. The linkage meshing ring can synchronously drive the multiple sets of bevel gears and the first swing arm to rotate, when the lifting plate drives the detection instrument to lift towards the outer side, at the moment, the multiple sets of swing gears drive the swing arc plate to rotate clockwise and open the detection channel, and the design improves the safety and practicability.

Description

Technical Field

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

[0002] Production riser is a key pipeline system used to connect submarine oil wells with offshore production platforms or floating production systems (such as FPSO, semi-submersible platforms, etc.) in oil production (especially offshore oil and gas development). It is mainly used to safely and efficiently transport crude oil, natural gas or mixed fluids in submarine oil reservoirs to surface facilities, and may also assume other auxiliary functions. Production risers have strict quality requirements during production and operation, and generally need to have high pressure bearing capacity and high airtightness. Therefore, they need to be inspected for damage before use, especially for cracks on the outer wall.

[0003] The 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 also includes: a mounting plate, which is used to carry 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. When in use, the threaded rod is rotated to make it contact with the contact plate, so that the contact plate and the fixed 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, which reduces the possibility of shaking of the ultrasonic probe during use, thereby increasing the stability of the device during use. After use, the side plate is rotated to reduce the area occupied by the entire mounting plate, making it easier to carry the device.

[0004] However, the automation and freedom of the pipeline damage detection device disclosed above are general. When in use, the deflection and swing angle of the instrument cannot be freely adjusted according to actual needs, and the instrument cannot be automatically stored 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 in order to solve the problems that the degree of automation and degree of freedom of pipeline damage detection devices in the prior art are general, the deflection and swing angle of the instrument cannot be freely adjusted according to actual needs during use, the instrument cannot be automatically stored in a non-working state, and a linkage storage structure is lacking.

[0006] To achieve the above-mentioned purpose, the technical scheme of the present invention is: a damage detection device for oil production riser, comprising an adjustment mechanism and a detection mechanism, the adjustment mechanism comprising a base, an inner rotating cylinder is rotatably arranged on the top of the base, an outer rotating cylinder is movably mounted 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 mounted on both ends of the swing rod, and a locking hoop for mounting the detection mechanism is fixedly connected to the top of the swing seat; when the inner rotating cylinder and the outer rotating cylinder are rotated and matched in different ways, the detection mechanism can be realized. The deflection and rotation of the detection mechanism are shown; the detection mechanism includes a main shell and a top cover, a plurality of rotating seats are arranged on the inner wall of the main shell, 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, and 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 outward, the top cover automatically opens the detection channel.

[0007] As a further solution of the present invention: a linkage meshing ring is rotatably arranged on the inner wall of the main shell, and the linkage meshing ring consists of two parts: a vertical meshing tooth one at the top and a horizontal meshing tooth two at the bottom; a bevel gear matching with the meshing tooth one is installed in the middle of the linkage rod.

[0008] As a further solution of the present invention: a plurality of mounting bosses are arranged on the inner wall of the main shell, a limiting rail is arranged on the inner wall of the mounting boss, and a limiting groove cooperating with the limiting rail is arranged on the outer wall of the linkage engagement ring.

[0009] As a further solution of the present invention: a support ring is fixedly provided on the inner wall of the top cover, and a double gear ring is rotatably provided on the top of the support ring, and the double gear ring includes an outer gear ring and an inner gear ring; a plurality of swing gears meshing with the inner gear ring are also installed on the inner side of the support ring, and a plurality of swing arc plates cooperating with each other are fixedly provided in the middle of the swing gear.

[0010] As a further solution of the present invention: a mounting seat is also provided on the inner wall of the main shell, a transmission rod is movably mounted on the mounting seat, a transmission gear 1 meshing with the outer gear ring is installed on the top of the transmission rod, and a transmission gear 2 meshing with the meshing tooth 2 is installed on the bottom of the transmission rod.

[0011] As a further solution of the present invention: a mounting horizontal plate is further provided on the inner wall of the main shell, a driving motor is mounted on the mounting horizontal plate, and a driving gear meshing with the meshing tooth 2 is mounted on the output end of the driving motor.

[0012] As a further solution of the present invention: a deflection gear 1 is installed on the outer wall of the inner rotating cylinder, a linkage part is installed on the outer wall of the outer rotating cylinder, the linkage part includes a deflection gear 2 and a first bevel tooth fixedly arranged on the top thereof, and a second bevel tooth meshing with the first bevel tooth is fixedly installed on the inner wall of the swing seat.

[0013] As a further solution of the present invention: an equipment compartment is provided at the bottom of the base, and a symmetrical adjustment motor 1 and an adjustment motor 2 are installed in the equipment compartment, and an adjustment gear 1 meshing with the deflection gear 1 is installed at the output end of the adjustment motor 1, and an adjustment gear 2 meshing with the deflection gear 2 is installed at the output end of the adjustment motor 2.

[0014] As a further solution of the present invention: a T-rail is fixedly provided on the bottom of the inner rotating cylinder, and a T-slot matching therewith is provided on the top of the base; a mounting convex ring is provided on the outer wall of the inner rotating cylinder, and a mounting groove matching therewith is provided on the inner wall of the outer rotating cylinder.

[0015] As a further solution of the present invention: a bearing that cooperates 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; a mounting frame is fixedly provided at the bottom of the lifting plate, a rotating motor is installed on the mounting frame, and a special-shaped gear that cooperates 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 cooperating with the ring rail is arranged on the bottom of the double gear ring.

[0017] As a further solution of the present invention: three groups of cylinders are installed at the bottom of the bottom cover, and the output ends of the cylinders are installed with tapered support legs facing downwards.

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

[0019] As a further solution of the present invention: a plurality of groups of cylinders are arranged on the outer wall of the base, and conical legs are arranged at the output ends of the cylinders; a control panel is also arranged on the base, and a sensor is also installed at the bottom of the equipment compartment; a protective cover is also installed on the base.

[0020] Compared with the prior art, the present invention has the following beneficial effects: 1. The present invention can synchronously drive multiple sets of bevel gears and the first swing arm to rotate through the linkage meshing ring. Under the drive of multiple sets of second swing arms, the lifting plate can drive the detection instrument to lift outward. Under the cooperation of transmission gear 2 and transmission gear 1, the double gear ring will rotate clockwise. At this time, multiple sets of swing gears drive the swing arc plate to rotate clockwise and open the detection channel. The lifting plate drives the detection instrument to extend out of the detection channel and detect the accumulated oil production riser. This design improves the safety and practicality of the damage detection device for oil production risers.

[0021] 2. The present invention can quickly adjust the angle and position of the detection mechanism by adjusting motor 1 and adjusting motor 2, so as to adaptively adjust the detection angle according to demand. When adjusting motor 1 drives deflection gear 1 to rotate and adjusting motor 2 is not started, the swing seat rotates and swings at the same time. When adjusting motor 2 drives deflection gear 2 to rotate and adjusting motor 1 is not started, the swing seat swings rapidly under the cooperation of the first bevel gear and the second bevel gear. When adjusting motor 1 and adjusting motor 2 are started synchronously and have the same rotation speed, the swing seat rotates freely. The complex movement of the detection mechanism can be realized through a variety of drive and rotation 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

[0022] The present invention will be further explained below in conjunction with the accompanying drawings and embodiments: Figure 1 It is a three-dimensional structural diagram of the present invention; Figure 2 It is a three-dimensional structural diagram of the adjustment mechanism in the present invention; Figure 3 is a cross-sectional view of the adjustment mechanism of the present invention; Figure 4 yes Figure 3 A magnified view of the structure at center A; Figure 5 It is a three-dimensional internal structure diagram of the detection mechanism in the present invention; Figure 6 is a cross-sectional view of the main housing in the present invention; Figure 7 It is a three-dimensional structural diagram of the linkage engagement ring in the present invention; Figure 8 It is a three-dimensional structural diagram of the top cover in the present invention; Fig. 9 is a cross-sectional view of the top cover of the present invention; Fig.10 It is a three-dimensional structural diagram of the double gear ring in the present invention.

[0023] Description of reference numerals: 1. Adjustment mechanism; 101. Base; 102. Equipment compartment; 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. Mounting convex ring; 113. Mounting groove; 114. T-rail; 115. T-slot; 116. Deflection gear 1; 117. Linkage; 118. Deflection gear 2; 119. First bevel gear; 120. Second bevel gear; 121. Adjustment motor 1; 122. Adjustment gear 1; 123. Adjustment motor 2; 124. Adjustment gear 2; 125. Protective cover; 2. Detection mechanism; 201. Main housing; 202. Top cover; 203. Mounting boss; 204. Linkage meshing ring; 205. Meshing tooth one; 206. Meshing 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. Mounting cross plate; 217. Driving motor; 218. Driving gear; 219. Detection channel; 220. Support ring; 221. Double gear ring; 222. Outer gear ring; 223. Inner gear ring; 224. Swinging gear; 225. Swinging arc plate; 226. Mounting seat; 227. Transmission rod; 228. Transmission gear one; 229. Transmission gear two. DETAILED DESCRIPTION

[0024] The following will be combined with the attached Figures 1 to 10 The technical solution of the present invention is described clearly and completely. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0025] The present invention provides a damage detection device for an oil production riser through improvement, such as Figure 1-Figure 10As shown, 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. Symmetrical 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 rod 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 rotated and matched in different ways, the deflection and rotation of the detection mechanism 2 can be realized; the detection mechanism 2 includes a main The shell body 201 and the top cover 202, multiple groups of rotating seats 209 are arranged on the inner wall of the main shell body 201, and a linkage rod 210 is installed on the rotating seat 209, and a first swing arm 212 is installed at the end of the linkage rod 210, and a second swing arm 213 is movably installed at the end of the first swing arm 212, and 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.

[0026] In this embodiment: the damage detection device for oil production riser is mainly divided into two parts: adjustment mechanism 1 and detection mechanism 2. When the device is in use, first place the device on the ground of the oil production riser stacking site, then start the multiple groups of cylinders 105 through the control panel 103 and adjust the length of the tapered legs 106 to keep the device in a horizontal state. When the active gear 218 drives the linkage meshing 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 transmission gear 229 and the transmission gear 1 228 rotate clockwise, and the double gear ring 221 also rotates clockwise. The multiple groups of 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, cyclic detection on the surrounding risers. When the angle and position of the detection instrument 215 need to be adjusted, the adjustment motor 1 121 and the adjustment motor 2 123 are started, and the complex movement of the detection mechanism 2 can be achieved through a variety of drive and speed combinations.

[0027] See attached Figure 5 -Attached Figure 7 A linkage meshing ring 204 is rotatably provided on the inner wall of the main housing 201, and the linkage meshing ring 204 consists of a top vertical meshing tooth 1 205 and a bottom horizontal meshing tooth 2 206; a bevel gear 211 cooperating with the meshing tooth 1 205 is installed in the middle of the linkage rod 210.

[0028] In this embodiment, in order to convert the rotation in the horizontal direction into the reciprocating motion of the lifting plate 214, a linkage engagement ring 204 structure is designed.

[0029] See attached Figure 6 -Attached Figure 7 A plurality 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 cooperating therewith is opened on the outer wall of the linkage engagement ring 204.

[0030] In this embodiment: In order to install the linkage engagement ring 204 and ensure its free rotation relative to the inner wall of the main shell 201, thereby realizing the lifting of the lifting plate 214 and the opening of the top cover 202, a matching limit rail 207 and limit groove 208 structure are designed.

[0031] See attached Figure 8 -Attached Fig.10 A support ring 220 is fixedly provided on the inner wall of the top cover 202, and a double gear ring 221 is rotatably provided on the top of the support ring 220, and the double gear ring 221 includes 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 swing arc plates 225 cooperating with each other are fixedly provided in the middle of the swing gear 224; a mounting seat 226 is also provided on the inner wall of the main shell 201, and a transmission rod 227 is movably installed on the mounting seat 226, a transmission gear 1 228 meshing with the outer gear ring 222 is installed on the top of the transmission rod 227, and a transmission gear 2 229 meshing with the meshing gear 206 is installed on the bottom of the transmission rod 227.

[0032] In this embodiment: when the lifting plate 214 moves, in order to automatically and synchronously open and close the top cover 202, thereby realizing fully automatic operation and storage, a transmission rod 227 structure is designed. When the driving gear 218 drives the linkage meshing 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 transmission gear 229 and the transmission gear 1 228 rotate clockwise, and the double gear ring 221 also rotates clockwise. The multiple sets of 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 detect the risers stacked around. When the driving gear 218 drives the linkage meshing 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 transmission gear 229 and the transmission gear 1 228 rotate counterclockwise, and the double gear ring 221 also rotates counterclockwise. The multiple 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.

[0033] See attached Figure 5 -Attached Figure 6 A mounting cross plate 216 is also provided on the inner wall of the main housing 201 , a driving motor 217 is mounted on the mounting cross plate 216 , and a driving gear 218 meshing with the meshing tooth 206 is mounted on the output end of the driving motor 217 .

[0034] In this embodiment, in order to drive the linkage engagement ring 204 to rotate, thereby lifting or lowering the detection instrument 215, a driving motor 217 structure is designed.

[0035] See attached Figure 1 -Attached Figure 3 A deflection gear 116 is installed on the outer wall of the inner rotating cylinder 107, and a linkage member 117 is installed on the outer wall of the outer rotating cylinder 108. The linkage member 117 includes a deflection gear 118 and a first bevel gear 119 fixedly arranged on the top thereof, and a second bevel gear 120 meshing with the first bevel gear 119 is fixedly installed on the inner wall of the swing seat 110; an equipment compartment 102 is provided at the bottom of the base 101, and a symmetrical adjusting motor 121 and an adjusting motor 2 123 are installed in the equipment compartment 102, and an adjusting gear 122 meshing with the deflection gear 116 is installed at the output end of the adjusting motor 121, and an adjusting gear 2 124 meshing with the deflection gear 118 is installed at the output end of the adjusting motor 2 123.

[0036] In this embodiment: when the adjustment motor 1 121 drives the deflection gear 1 116 to rotate and the adjustment motor 2 123 is not started, the swing seat 110 drives the main housing 201 to rotate and swing. When the adjustment motor 2 123 drives the deflection gear 2 118 to rotate and the adjustment motor 1 121 is not started, the swing 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. When the adjustment motor 1 121 and the adjustment motor 2 123 are started synchronously and have the same rotation speed, the swing seat 110 drives the main housing 201 to rotate freely.

[0037] See attached Figure 3 -Attached Figure 4 A T-shaped rail 114 is fixedly provided at the bottom of the inner rotating cylinder 107, and a T-shaped groove 115 matching therewith is provided at the top of the base 101; a mounting convex ring 112 is provided on the outer wall of the inner rotating cylinder 107, and a mounting groove 113 matching therewith is provided on the inner wall of the outer rotating cylinder 108.

[0038] In this embodiment, in order to ensure that the inner rotating cylinder 107 can rotate freely relative to the top of the base 101, a mutually matching T-shaped rail 114 and T-shaped slot 115 structure is designed. In order to ensure that the outer rotating cylinder 108 can rotate freely relative to the inner rotating cylinder 107, a mutually matching mounting convex ring 112 and mounting groove 113 structure is designed.

[0039] See attached Figure 1 -Attached Figure 3 A plurality of 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 compartment 102; a protective cover 125 is also installed on the base 101.

[0040] In this embodiment: when the device is placed on the ground, in order to ensure that the device remains in a horizontal state, multiple groups of tapered legs 106 structures are designed. In order to monitor the horizontality of the device in real time, a sensor 104 structure is designed. In order to prevent the transmission structure from being directly exposed to the outside, a protective cover 125 structure is designed. When the linkage engagement ring 204 rotates, in order to ensure that the lifting plate 214 rises and falls smoothly and avoids the occurrence of jamming, the first swing arm 212 and the second swing arm 213 located on the corresponding two sides of the lifting plate 214 are symmetrically installed.

[0041] Working principle of the present invention: When the device is used, the device is first placed on the ground of the oil production riser stacking site, and then the multiple groups of cylinders 105 are started through the control panel 103 and the length of the tapered legs 106 are adjusted to keep the device in a horizontal state. When the driving gear 218 drives the linkage meshing 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 transmission gear 229 and the transmission gear 1 228 rotate clockwise, and the double gear ring 221 also rotates clockwise. The 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, cyclic detection on the surrounding risers. When it is necessary to adjust the angle and position of the detection instrument 215, the adjustment motor 1 121 and the adjustment motor 2 123 are started, and the complex movement of the detection mechanism 2 can be realized through a variety of drive and speed combinations.

[0042] 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 apparent to those skilled in the art, and the general principles defined herein may 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 the embodiments shown herein, but will conform to the widest scope consistent with the principles and inventive features disclosed herein.

Claims

1. A damage detection device for an oil production riser, comprising an adjustment mechanism (1) and a detection mechanism (2), characterized in that: The adjustment mechanism (1) comprises a base (101), an inner rotating cylinder (107) is rotatably provided on the top of the base (101), an outer rotating cylinder (108) is movably mounted on the outer wall of the inner rotating cylinder (107), symmetrical swing rods (109) are fixedly provided on both sides of the inner rotating cylinder (107), swing seats (110) are movably mounted on both ends of the swing rods (109), and a locking hoop (111) for mounting 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 rotatably matched in different ways, the deflection and rotation of the detection mechanism (2) can be achieved; The detection mechanism (2) comprises a main shell (201) and a top cover (202); a plurality of groups of rotating seats (209) are arranged on the inner wall of the main shell (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 be lifted outward, the top cover (202) automatically opens the detection channel (219).

2. A damage detection device for an oil production riser according to claim 1, characterized in that: A linkage meshing ring (204) is rotatably provided on the inner wall of the main housing (201), and the linkage meshing ring (204) is composed of two parts: a meshing tooth 1 (205) in the vertical direction at the top and a meshing tooth 2 (206) in the horizontal direction at the bottom; a bevel gear (211) cooperating with the meshing tooth 1 (205) is installed in the middle of the linkage rod (210).

3. A damage detection device for an oil production riser according to claim 2, characterized in that: 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) cooperating with the limiting rail (207) is arranged on the outer wall of the linkage engagement ring (204).

4. A damage detection device for an oil production riser according to claim 2, characterized in that: 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) comprises an outer gear ring (222) and an inner gear ring (223); a plurality of groups of swing gears (224) meshing with the inner gear ring (223) are also installed on the inner side of the support ring (220); a plurality of groups of swing arc plates (225) cooperating with each other are fixedly arranged in the middle of the swing gear (224).

5. A damage detection device for an oil production riser according to claim 4, characterized in that: A mounting seat (226) is also provided on the inner wall of the main housing (201), a transmission rod (227) is movably mounted on the mounting seat (226), a transmission gear 1 (228) meshing with the outer gear ring (222) is mounted on the top of the transmission rod (227), and a transmission gear 2 (229) meshing with the meshing gear 2 (206) is mounted on the bottom of the transmission rod (227).

6. A damage detection device for an oil production riser according to claim 5, characterized in that: A mounting transverse plate (216) is also provided on the inner wall of the main housing (201), a driving motor (217) is mounted on the mounting transverse plate (216), and a driving gear (218) meshing with the second meshing tooth (206) is mounted on the output end of the driving motor (217).

7. A damage detection device for an oil production riser according to any one of claims 1 to 5, characterized in that: A deflection gear 1 (116) is mounted on the outer wall of the inner rotating cylinder (107), a linkage member (117) is mounted on the outer wall of the outer rotating cylinder (108), the linkage member (117) comprising a deflection gear 2 (118) and a first bevel gear (119) fixedly arranged on the top thereof, and a second bevel gear (120) meshing with the first bevel gear (119) is fixedly mounted on the inner wall of the swing seat (110).

8. A damage detection device for an oil production riser according to claim 7, characterized in that: An equipment compartment (102) is provided at the bottom of the base (101), and a symmetrical adjustment motor 1 (121) and an adjustment motor 2 (123) are installed in the equipment compartment (102); an adjustment gear 1 (122) meshing with the deflection gear 1 (116) is installed at the output end of the adjustment motor 1 (121), and an adjustment gear 2 (124) meshing with the deflection gear 2 (118) is installed at the output end of the adjustment motor 2 (123).

9. A damage detection device for an oil production riser according to any one of claims 1 to 5, characterized in that: A T-shaped rail (114) is fixedly provided at the bottom of the inner rotating cylinder (107), and a T-shaped groove (115) matching the rail is provided at the top of the base (101); a mounting convex ring (112) is provided on the outer wall of the inner rotating cylinder (107), and a mounting groove (113) matching the rail is provided on the inner wall of the outer rotating cylinder (108).

10. A damage detection device for an oil production riser according to claim 8, characterized in that: A plurality of 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 compartment (102); and a protective cover (125) is also installed on the base (101).

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