A BWFRP power pipe inner diameter detection device

Abstract

The present invention relates to the technical field of electric power pipes, and specifically to a BWFRP electric power pipe inner diameter detection device, comprising a mounting plate, a transmission mechanism and a detection mechanism, wherein the mounting plates are symmetrically arranged on the ground front and back, the two mounting plates are commonly provided with the transmission mechanism, and the middle part of the front mounting plate is provided with the detection mechanism, and the present invention can sequentially limit and fix and intermittently displace a batch of BWFRP electric power pipes to perform continuous inner diameter size detection through the cooperation of the transmission mechanism and the detection mechanism, thereby greatly improving the work efficiency, and can position and fix the BWFRP electric power pipe through the cooperation of the clamping unit and the self-clamping component, thereby ensuring the accuracy of the docking of the BWFRP electric power pipe and the detection mechanism, and the inner and outer walls of the clamping section of the BWFRP electric power pipe are clamped and fixed through the positioning detection component, and the inner clamping plate is corrected and supported so that the inner clamping plate is fully fitted with the inner wall of the BWFRP electric power pipe, thereby ensuring the accuracy of the inner diameter size detection of the BWFRP electric power pipe.

Description

Technical Field

[0001] The present invention relates to the technical field of electric power pipes, and in particular to a BWFRP electric power pipe inner diameter detection device. Background Art

[0002] BWFRP power pipe is a high-performance composite material with the advantages of high strength, corrosion resistance, light weight, good weather resistance, good flexibility and good insulation performance. It is widely used in the protection and transmission of power cables. In the production and manufacturing process of BWFRP power pipe, inner diameter detection is a very important link. It is an important detection method to ensure dimensional accuracy, electrical performance, improve safety and quality control consistency. However, the current detection device can only fix a single BWFRP power pipe, and after the first inner diameter detection, the BWFRP power pipe is removed and re-fixed for the next one to be tested, which has low detection efficiency.

[0003] Secondly, the existing method of fixing only by clamping the outer wall cannot ensure the stability of the BWFRP power pipe during the inspection process. Moreover, since the inspection structure needs to extend into the BWFRP power pipe and fit with its inner wall to detect the inner diameter, the inspection structure does not fit fully with its inner wall, which affects the accuracy of the inspection of the inner diameter size of the BWFRP power pipe. Summary of the invention

[0004] Technical problem to be solved: The present invention provides a BWFRP power pipe inner diameter detection device, which can solve the problems pointed out in the above background technology.

[0005] Technical solution: In order to achieve the above purpose, the present invention adopts the following technical solution, a BWFRP power pipe inner diameter detection device, including a mounting plate, a transmission mechanism and a detection mechanism, the mounting plates are symmetrically arranged on the ground front and back, the two mounting plates are jointly provided with a transmission mechanism, and a detection mechanism is arranged in the middle of the front mounting plate.

[0006] The transmission mechanism includes a rotating shaft, and multiple rotating shafts are evenly rotated between the two mounting plates. An intermittent motor is installed on the mounting plate at the rear side through a motor seat. The output end of the intermittent motor is connected to one of the rotating shafts. The outer walls of the rotating shafts are fixedly sleeved with transmission wheels, and the outer walls of the multiple transmission wheels are jointly provided with transmission tracks. Multiple clamping units for supporting and clamping the BWFRP power pipe are evenly arranged on the transmission track along the rotation direction.

[0007] The detection mechanism includes an L-shaped base, which is installed on the front mounting plate. The lower end of the vertical section of the L-shaped base is set on the ground. A displacement component is set on the horizontal section of the L-shaped base, and a positioning detection component is set on the displacement component.

[0008] Furthermore, the clamping unit includes a positioning plate, which is installed on the outer wall of the transmission track near the rear mounting plate. The front end surface of the positioning plate is symmetrically slidably provided with a clamping block, the lower end surface of the clamping block is slidably provided on the transmission track, and a self-clamping component is provided between the clamping blocks.

[0009] Furthermore, the self-clamping component includes a two-way spring telescopic rod, the clamping block is a trapezoidal structure and the opposite surfaces of the two clamping blocks are inclined surfaces, and a plurality of two-way spring telescopic rods are evenly arranged from front to back between the lower parts of the two clamping blocks, and the telescopic ends of the two-way spring telescopic rods are connected to the corresponding end surfaces of the clamping blocks, and a two-way telescopic plate is arranged above the two-way spring telescopic rod, and a plurality of rollers are embedded on the upper end surface of the fixed section of the two-way telescopic plate from front to back, and the telescopic ends of the telescopic plate are connected to the corresponding end surfaces of the clamping blocks.

[0010] Furthermore, an anti-skid rubber block is installed at the lower side of the inclined surface of the clamping block, the thickness of the anti-skid rubber block gradually increases from top to bottom, and the anti-skid rubber block is evenly provided with sawtooth-shaped protrusions, and the protrusions are arranged obliquely downward.

[0011] Furthermore, a circular groove is provided in the middle of the front end surface of the positioning plate, a limiting column is installed at the rear end of the circular groove, the front part of the limiting column is a truncated cone guide structure, and the diameter of the limiting column is smaller than the diameter of the circular groove.

[0012] Furthermore, the displacement assembly includes a limit plate, and the upper end surface of the horizontal section of the L-shaped base is symmetrically installed with the limit plate. The upper end surface of the horizontal section of the L-shaped base is located between the two limit plates and has sliding grooves symmetrically provided on the left and right. Electric sliders are slidably arranged in the sliding grooves. The upper end surfaces of the two electric sliders are commonly connected to the lower end of the linkage plate, and the left and right end surfaces of the linkage plate are slidably connected to the corresponding end surfaces of the limit plate.

[0013] Furthermore, the positioning detection component includes a fixed plate, which is installed on the rear end face of the linkage plate. A transverse groove is opened in the middle of the rear end face of the fixed plate, and a threaded rod group is transversely arranged in the transverse groove. The rotating motor is installed on the side of the fixed plate through the motor seat. One end of the threaded rod group is connected to the output shaft of the rotating motor, and the other end is rotatably connected to the inner wall of the transverse groove.

[0014] Furthermore, the threaded rod group consists of a middle threaded rod and side threaded rods, the middle threaded rod is a bidirectional threaded rod, the side threaded rod is a unidirectional threaded rod, the left and right ends of the middle threaded rod are fixedly connected with the side threaded rods, and the spiral direction of the side threaded rod is opposite to the spiral direction of one side of the adjacent middle threaded rod.

[0015] Further, the positioning and detecting assembly further includes a first U-shaped plate. Symmetrically arranged first U-shaped plates are threadedly connected to the middle threaded rod, and second U-shaped plates are threadedly connected to the side threaded rods. Both the first U-shaped plate and the second U-shaped plate are U-shaped structures with upward openings. An outer clamping plate is embedded in the middle of the first U-shaped plate, and an inner clamping plate is embedded in the middle of the second U-shaped plate. The clamping surfaces of the outer clamping plate and the inner clamping plate are both arc surfaces. A laser rangefinder is embedded in the opposite surface of one of the inner clamping plates.

[0016] Further, blocking plates are installed at the positions on the opposite surfaces of the inner clamping plates that are in front of the laser rangefinder. A correction block is installed at the position on the inner clamping plate in front of the blocking plate. A horn-shaped hole that penetrates through from front to back is opened in the correction block. The size of the horn-shaped hole gradually increases from back to front. A moving groove is opened at the position on the front side of the inner clamping plate corresponding to the horn-shaped hole. An electric moving block is slidably arranged in the moving groove. A plug rod corresponding to the horn-shaped hole is connected to the electric moving block. A plurality of positioning frames are linearly installed along the outer side of the moving groove on the inner clamping plate. The plug rod sequentially slides through the positioning frames.

[0017] Beneficial effects:

[0018] 1. Through the cooperation of the transmission mechanism and the detection mechanism, the batch of BWFRP power pipes can be sequentially limited and fixed, and the intermittent displacement can be used for continuous inner diameter size detection, greatly improving the work efficiency. Through the cooperation of the clamping unit and the self-clamping assembly, the BWFRP power pipe can be positioned and fixed to ensure the accuracy of the docking between the BWFRP power pipe and the detection mechanism. Through the positioning and detecting assembly, the inner and outer walls of the clamping section of the BWFRP power pipe are clamped and fixed, and the inner clamping plate is corrected and supported to make the inner clamping plate fully fit with the inner wall of the BWFRP power pipe, ensuring the accuracy of the inner diameter size detection of the BWFRP power pipe.

[0019] 2. The BWFRP power pipe is automatically pressed down by its own gravity on the double-direction telescopic plate. The elasticity of the double-direction spring telescopic rod enables the clamping block to always clamp the outer wall of the BWFRP power pipe. The anti-slip rubber block provided ensures that the BWFRP power pipe will not slide upward during the clamping process, improving the clamping stability. Subsequently, the BWFRP power pipe is pushed towards the positioning plate by the cooperation of the rollers, so that the end face of the BWFRP power pipe is matched with the limit post to position its position, ensuring that the axial center positions are consistent, thereby limiting and fixing the BWFRP power pipe at multiple positions and improving the stability.

[0020] 3. The threaded rod group is rotated to drive the two inner clamps to move away from each other and the two outer clamps to move toward each other, so as to clamp the inner and outer walls of the BWFRP power pipe. The electric moving block is used to drive the insertion rod to move and penetrate into the horn hole of the correction block, so as to straighten the inner clamping plate and fully fit it with the inner wall of the BWFRP power pipe to prevent the gap between the inner clamping plate and the inner wall of the BWFRP power pipe from affecting the accuracy of the laser rangefinder detection results. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a partial structural cross-sectional schematic diagram of the present invention.

[0022] Figure 2 For the present invention Figure 1 A magnified view of.

[0023] Figure 3 It is a top view of the present invention.

[0024] Figure 4 For the present invention Figure 3 BB section view.

[0025] Figure 5 For the present invention Figure 3 CC section view.

[0026] Figure 6 For the present invention Figure 4 D magnified view.

[0027] Figure 7 It is a schematic cross-sectional view of part of the structure of the positioning detection component of the present invention.

[0028] Figure 8 For the present invention Figure 7 E magnified view.

[0029] Fig. 9 The schematic diagram of the structure of the clamping block, the anti-skid rubber block and the self-clamping assembly of the present invention is shown in FIG.

[0030] Fig.10 It is a schematic structural diagram of the positioning plate and the limiting column of the present invention.

[0031] Fig.11 It is a schematic structural diagram of the correction block of the present invention.

[0032] In the figure: 1, mounting plate; 2, transmission mechanism; 21, rotating shaft; 22, intermittent motor; 23, transmission wheel; 24, transmission track; 25, clamping unit; 251, positioning plate; 252, clamping block; 253, anti-slip rubber block; 254, limiting column; 26, self-clamping component; 261, bi-directional spring telescopic rod; 262, bi-directional telescopic plate; 3, detection mechanism; 31, L-shaped base; 32, displacement component; 321, limiting plate; 322, sliding groove; 323, electric slider; 324, linkage plate; 33, positioning and detection component; 331, fixing plate; 332, threaded rod group; 333, rotating motor; 334, intermediate threaded rod; 335, side threaded rod; 336, first C-shaped plate; 337, second C-shaped plate; 338, outer clamping plate; 339, inner clamping plate; 34, laser rangefinder; 3391, blocking plate; 3392, correction block; 3393, horn-shaped hole; 3394, electric moving block; 3395, inserting rod; 3396, positioning frame. Specific implementation mode

[0033] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all 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.

[0034] Please refer to Figure 1 , the present invention provides a technical solution: an inner diameter detection device for BWFRP power pipes, including a mounting plate 1, a transmission mechanism 2 and a detection mechanism 3. The mounting plates 1 are symmetrically arranged on the ground front and back. A transmission mechanism 2 is jointly arranged on the two mounting plates 1, and a detection mechanism 3 is arranged in the middle of the front mounting plate 1.

[0035] Please refer to Figure 3 , Figure 4In this embodiment, the transmission mechanism 2 includes a rotating shaft 21, and multiple rotating shafts 21 are evenly rotated between the two mounting plates 1. An intermittent motor 22 is installed on the mounting plate 1 at the rear side through a motor seat. The output end of the intermittent motor 22 is connected to one of the rotating shafts 21. The outer wall of the rotating shaft 21 is fixed with a transmission wheel 23, and the outer walls of multiple transmission wheels 23 are jointly provided with a transmission track 24. Multiple clamping units 25 for supporting and clamping the BWFRP power pipe are evenly arranged on the transmission track 24 along the rotation direction. Because there are multiple clamping units 25, multiple clamping units 25 can be clamped at one time, and there is no need to wait for the previous detection to be completed, remove the detected one, and then clamp and fix the next one, thereby improving the detection efficiency. When working, the intermittent motor 22 is started, and the intermittent motor 22 drives the rotating shaft 21 and the transmission wheel 23 connected thereto to rotate. Since multiple transmission wheels 23 are matched with the transmission track 24, when multiple transmission wheels 23 rotate synchronously, the transmission track 24 is driven to rotate, and finally the clamping unit 25 is driven to move intermittently.

[0036] Please refer to Figure 4 , Figure 6 , Fig. 9 , Fig.10In this embodiment, the clamping unit 25 includes a positioning plate 251, and a positioning plate 251 is installed on the outer wall of the transmission crawler 24 near the rear mounting plate 1. A circular groove is opened in the middle of the front end surface of the positioning plate 251, and a limiting column 254 is installed at the rear end of the circular groove. The front part of the limiting column 254 is a truncated cone guide structure, and the diameter of the limiting column 254 is smaller than the diameter of the circular groove; the front end surface of the positioning plate 251 is symmetrically slidably provided with a clamping block 252, and the lower end surface of the clamping block 252 is slidably provided on the transmission crawler 24, and a self-clamping component 26 is provided between the clamping blocks 252; the self-clamping component 26 includes a bidirectional spring telescopic rod 261, and the clamping The block 252 is of a trapezoidal structure and the opposing surfaces of the two clamping blocks 252 are inclined surfaces. A plurality of bidirectional spring telescopic rods 261 are evenly arranged between the lower parts of the two clamping blocks 252 from front to back. The telescopic ends of the bidirectional spring telescopic rods 261 are connected to the corresponding end faces of the clamping blocks 252. A bidirectional telescopic plate 262 is arranged above the bidirectional spring telescopic rods 261. A plurality of rollers are embedded in the upper end face of the fixed section of the bidirectional telescopic plate 262 from front to back. A plurality of rollers (not shown in the figure) are embedded in the upper end face of the fixed section of the bidirectional telescopic plate 262 from front to back. The telescopic ends of the bidirectional telescopic plate 262 are connected to the corresponding end faces of the clamping blocks 252. The lower side of the inclined surface of the clamping block 252 is equipped with an anti-skid rubber block 253, the thickness of the anti-skid rubber block 253 gradually increases from top to bottom, and the anti-skid rubber block 253 is evenly provided with serrated protrusions, and the protrusions are arranged obliquely downward; when working, by placing the BWFRP power tube between the clamping blocks 252, the gravity of the BWFRP power tube automatically presses down to move the clamping blocks 252 in opposite directions, and the lower end of the BWFRP power tube is placed on the two-way telescopic plate 262. The elasticity of the two-way spring telescopic rod 261 can make the clamping block 252 always clamp the outer wall of the BWFRP power tube, and the clamping block 2 The external support of 52 and the internal support of the limit column 254 cooperate to perform limited clamping. Due to the anti-slip rubber block 253 set on the two clamping blocks 252, the BWFRP power pipe will not slide upward during the clamping process, thereby improving the stability of the clamping. Subsequently, the BWFRP power pipe is moved toward the positioning plate 251 through external drive or manual pushing in cooperation with the roller, so that the end face of the BWFRP power pipe cooperates with the limit column 254 to position it, ensuring that the axial position is consistent, and stable clamping is achieved through the cooperation of the external support of the clamping block 252 and the internal support of the limit column 254.

[0037] See also Figure 1 , Figure 3 and Figure 5, in this embodiment, the detection mechanism 3 includes an L-shaped base 31. The L-shaped base 31 is installed on the front mounting plate 1, the lower end of the vertical section of the L-shaped base 31 is set on the ground, and a displacement component 32 is arranged on the horizontal section of the L-shaped base 31. The displacement component 32 includes a limiting plate 321. The limiting plates 321 are symmetrically installed on the upper end surface of the horizontal section of the L-shaped base 31 from left to right. Sliding grooves 322 are symmetrically opened on the upper end surface of the horizontal section of the L-shaped base 31 at positions between the two limiting plates 321. Electric sliders 323 are slidably arranged in the sliding grooves 322. The upper end surfaces of the two electric sliders 323 are jointly connected to the lower end of a linkage plate 324. The left and right side end faces of the linkage plate 324 are slidably connected to the end faces of the corresponding limiting plates 321. During operation, the electric slider 323 moves in the sliding groove 322 to drive the linkage plate 324 to move closer to the BWFRP power pipe.

[0038] Please refer to Figure 5 , Figure 7 , Figure 8 , in this embodiment, a positioning and detection component 33 is arranged on the displacement component 32. The positioning and detection component 33 includes a fixing plate 331. The fixing plate 331 is installed on the rear end face of the linkage plate 324. A transverse groove is opened in the middle of the rear end face of the fixing plate 331. A threaded rod group 332 is transversely arranged in the transverse groove. A rotating motor 333 is installed on the side of the fixing plate 331 through a motor base. One end of the threaded rod group 332 is connected to the output shaft of the rotating motor 333, and the other end is rotatably connected to the inner wall of the transverse groove. The threaded rod group 332 is composed of an intermediate threaded rod 334 and side threaded rods 335. The intermediate threaded rod 334 is a bidirectional threaded rod, and the side threaded rods 335 are unidirectional threaded rods. The left and right ends of the intermediate threaded rod 334 are both fixedly connected with side threaded rods 335. The spiral direction of the side threaded rods 335 is opposite to the spiral direction of one side of the adjacent intermediate threaded rod 334. The positioning and detection component 33 further includes a U-shaped plate one 336. The U-shaped plate one 336 is threadedly connected to the side threaded rods 335. The intermediate threaded rod 334 is threadedly connected with symmetrically arranged U-shaped plates two 337 on the left and right. The U-shaped plate one 336 and the U-shaped plate two 337 are both U-shaped structures with openings upward. An outer clamping plate 338 is embedded in the middle of the U-shaped plate one 336. An inner clamping plate 339 is embedded in the middle of the U-shaped plate two 337. The clamping surfaces of the outer clamping plate 338 and the inner clamping plate 339 are both arc surfaces. The outer clamping plate 338 is attached to the outer wall of the BWFRP power pipe, and the inner clamping plate 339 is attached to the inner wall of the BWFRP power pipe. A laser rangefinder 34 is embedded in the opposite surface of one of the inner clamping plates 339. Blocking plates 3391 are installed on the opposite surfaces of the inner clamping plate 339 at positions in front of the laser rangefinder 34. A correction block 3392 is installed on the inner clamping plate 339 at a position in front of the blocking plate 3391. Please refer to Fig.11A speaker hole 3393 that passes through the front and back is provided on the correction block 3392, and the size of the speaker hole 3393 gradually increases from back to front. A movable groove is provided at a position corresponding to the speaker hole 3393 on the front side of the inner clamping plate 339, and an electric moving block 3394 is slidably arranged in the movable groove. The electric moving block 3394 is connected with an insertion rod 3395 corresponding to the speaker hole 3393, and a plurality of positioning frames 3396 are linearly installed on the inner clamping plate 339 along the outer side of the movable groove. The insertion rod 3395 slides in the positioning frame 3396 in turn, and the insertion rod 3395 is limited by the positioning frame 3396 to improve the stability of the insertion rod 3395 when moving.

[0039] During operation, driven by the displacement assembly 32, the linkage plate 324 drives the inner clamping plate 339 to enter the BWFRP power tube and drives the outer clamping plate 338 to move to the outer wall position of the BWFRP power tube. The rotating motor 333 is started, and the threaded rod group 332 is rotated, so that the two inner clamping plates 339 move away from each other and the two outer clamping plates 338 move toward each other, so as to perform internal support clamping on the inner wall of the BWFRP power tube and external clamping clamping on the outer wall of the BWFRP power tube. In order to ensure that the clamping surface of the inner clamping plate 339 can be fully fitted and pressed against the inner wall of the BWFRP power tube to prevent tilting or uneven clamping force, the electric moving block 3394 drives the insertion rod 3395 to move and penetrate into the horn hole 3393 of the correction block 3392, The cooperation between the insertion rod 3395 and the horn hole 3393 can make the inner clamping plate 339 fully fit with the inner wall of the BWFRP power pipe. Finally, the laser rangefinder 34 is started to measure the distance between the two inner clamping plates 339. The inner diameter of the detected pipe is obtained by adding the detected value to the thickness of the two inner clamping plates 339. It should be noted that the thickness of the inner clamping plate 339 is a certain value, so as to judge whether the test result is qualified. When the test is completed, the transmission track 24 rotates, driving the reinforcement unit 25 and the BWFRP power pipe on which the test is completed to move away from the positioning detection component 33. At this time, the next BWFRP power pipe to be tested is in the detection position of the positioning detection component 33, which can realize unloading and testing at the same time, thereby improving the detection efficiency.

[0040] In specific operation, the BWFRP power pipe is placed between the clamping blocks 252, and the gravity of the BWFRP power pipe automatically presses down to move the clamping blocks 252 in opposite directions. The lower end of the BWFRP power pipe is placed on the two-way telescopic plate 262. The elasticity of the two-way spring telescopic rod 261 can make the clamping block 252 always clamp the outer wall of the BWFRP power pipe. Due to the anti-slip rubber block 253 provided on the two clamping blocks 252, the BWFRP power pipe will not slide upward during the clamping process, thereby improving the stability of the clamping. Then, the BWFRP power pipe is clamped by the roller. The WFRP power tube is pushed toward the positioning plate 251, so that the end face of the BWFRP power tube cooperates with the limit column 254 to position it. At this time, the axis of the BWFRP power tube and the limit column 254 coincide; the intermittent motor 22 drives the rotating shaft 21 and the transmission wheel 23 connected thereto to rotate. Since the multiple transmission wheels 23 are all matched with the transmission crawler 24, the multiple transmission wheels 23 rotate synchronously, and the transmission crawler 24 moves, driving the clamping unit 25 to move intermittently along its transmission crawler 24, and moving the fixed BWFRP power tube to the detection When the mechanism is in position 3, the electric slider 323 moves in the sliding groove 322 and drives the linkage plate 324 to move closer to the BWFRP power tube, so that the inner clamping plate 339 enters the BWFRP power tube and drives the outer clamping plate 338 to move to the outer wall of the BWFRP power tube. The rotating motor 333 is started to drive the threaded rod group to rotate, so that the two inner clamping plates 339 move away from each other and the two outer clamping plates 338 move toward each other, so as to support and clamp the inner wall of the BWFRP power tube and clamp the outer wall of the BWFRP power tube. In order to ensure that the inner clamping plate 339 The clamping surface can fully fit and press against the inner wall of the BWFRP power pipe to prevent tilting or uneven clamping force. The electric moving block 3394 drives the insertion rod 3395 to move and penetrate into the horn hole 3393 of the correction block 3392. The insertion rod 3395 cooperates with the horn hole 3393 to make the inner clamping plate 339 fully fit against the inner wall of the BWFRP power pipe. Finally, the laser rangefinder 34 is started to detect its inner diameter. The detected value is added to the thickness of the two inner clamping plates 339 to obtain the detected inner diameter of the pipe.

[0041] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions. The sentence "includes an element defined by ... does not exclude the existence of other identical elements in the process, method, article or device including the element".

[0042] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A BWFRP power pipe inner diameter detection device, comprising a mounting plate, a transmission mechanism and a detection mechanism, characterized in that: The installation plates are symmetrically arranged before and after on the ground, and a transmission mechanism is jointly arranged on the two installation plates. A detection mechanism is arranged in the middle of the front side of the front installation plate. The transmission mechanism includes a rotating shaft. A plurality of rotating shafts are evenly and rotatably arranged between the two installation plates. An intermittent motor is installed on the rear installation plate through a motor base. The output end of the intermittent motor is connected to one of the rotating shafts. Transmission wheels are fixedly sleeved on the outer walls of the rotating shafts. A transmission track is jointly arranged on the outer walls of the plurality of transmission wheels. A plurality of clamping units for supporting and clamping the pipeline are evenly arranged on the transmission track along the rotation direction. The detection mechanism includes an L-shaped base. The L-shaped base is installed on the front installation plate. The lower end of the vertical section of the L-shaped base is on the ground. A displacement component is arranged on the horizontal section of the L-shaped base, and a positioning and detection component is arranged on the displacement component. The positioning and detection component includes a fixing plate. A transverse groove is opened in the middle of the rear end face of the fixing plate. A threaded rod group is transversely arranged in the transverse groove. The threaded rod group consists of a middle threaded rod and side threaded rods. The positioning and detection component also includes a first C-shaped plate. The first C-shaped plates are threadedly connected to the side threaded rods. The middle threaded rod is threadedly connected with symmetrically arranged second C-shaped plates on the left and right. Outer clamping plates are embedded and installed in the middle of the first C-shaped plates. Inner clamping plates are embedded and installed in the middle of the second C-shaped plates. A laser rangefinder is embedded and installed on the opposite face of one of the inner clamping plates. Blocking plates are installed on the opposite faces of the inner clamping plates at positions in front of the laser rangefinder. Correction blocks are installed on the inner clamping plates at positions in front of the blocking plates. A horn-shaped hole penetrating from front to back is opened in the correction block. The size of the horn-shaped hole gradually increases from back to front. A moving groove is opened at a position corresponding to the horn-shaped hole on the front side of the inner clamping plate. An electric moving block is slidably arranged in the moving groove. A plug rod corresponding to the horn-shaped hole is connected to the electric moving block. A plurality of positioning frames are linearly installed along the outer side of the moving groove on the inner clamping plate. The plug rod sequentially slides through the positioning frames.

2. A BWFRP power pipe inner diameter detection device according to claim 1, characterized in that: The clamping unit includes a positioning plate. The positioning plate is installed on the outer wall of the transmission track near the rear installation plate. Clamping blocks are symmetrically and slidably arranged on the front end face of the positioning plate. The lower end faces of the clamping blocks slide on the transmission track. A self-clamping component is arranged between the clamping blocks.

3. A BWFRP power pipe inner diameter detection device according to claim 2, characterized in that: The self-clamping component includes a bidirectional spring telescopic rod. The clamping blocks are trapezoidal structures and the opposite faces of the two clamping blocks are inclined planes. A plurality of bidirectional spring telescopic rods are evenly arranged between the lower parts of the two clamping blocks from front to back. The telescopic ends of the bidirectional spring telescopic rods are connected to the end faces of the corresponding clamping blocks. A bidirectional telescopic plate is arranged above the bidirectional spring telescopic rods. A plurality of rollers for conveniently pushing the pipeline backward are embedded and arranged on the upper end face of the fixed section of the bidirectional telescopic plate from front to back. The telescopic end of the telescopic plate is connected to the end face of the corresponding clamping block.

4. A BWFRP power pipe inner diameter detection device according to claim 3, characterized in that: Anti-slip rubber blocks are installed on the lower sides of the inclined planes of the clamping blocks. The thickness of the anti-slip rubber blocks gradually increases from top to bottom. Jagged protrusions are evenly arranged on the anti-slip rubber blocks, and the protrusions are inclined downward.

5. The BWFRP power pipe inner diameter detection device according to claim 2, characterized in that: A circular groove is opened in the middle of the front end face of the positioning plate. A limiting column is installed at the rear end of the circular groove. The front part of the limiting column is a conical guiding structure, and the diameter of the limiting column is smaller than the diameter of the circular groove.

6. The BWFRP power pipe inner diameter detection device according to claim 1, characterized in that: The displacement assembly includes a limiting plate. The upper end surface of the horizontal section of the L-shaped base is symmetrically installed with limiting plates on the left and right. The upper end surface of the horizontal section of the L-shaped base is symmetrically provided with sliding grooves on the left and right at positions between the two limiting plates. Electric sliders are slidably arranged in the sliding grooves. The upper end surfaces of the two electric sliders are jointly connected to the lower end of the linkage plate. The left and right side end surfaces of the linkage plate are slidably connected to the end surfaces of the corresponding limiting plates.

7. A BWFRP power pipe inner diameter detection device according to claim 6, characterized in that: The fixing plate is installed on the rear end surface of the linkage plate. The rotating motor is installed on the side surface of the fixing plate through a motor seat. One end of the threaded rod group is connected to the output shaft of the rotating motor, and the other end is rotatably connected to the inner wall of the transverse groove.

8. The BWFRP power pipe inner diameter detection device according to claim 7 is characterized in that: The middle threaded rod is a bidirectional threaded rod, and the side threaded rods are unidirectional threaded rods. The left and right ends of the middle threaded rod are both fixedly connected with side threaded rods. The spiral direction of the side threaded rods is opposite to the spiral direction of one side of the adjacent middle threaded rod.

9. A BWFRP power pipe inner diameter detection device according to claim 8, characterized in that: Both the U-shaped plate one and the U-shaped plate two are U-shaped structures with openings upward. The clamping surfaces of the outer clamping plate and the inner clamping plate are both arc surfaces.

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