A nondestructive testing device for a concrete pole

Abstract

The application discloses a kind of concrete electric pole nondestructive testing device, it is related to detection equipment technical field, including the main frame of protective cover, and it is set with transfer assembly outside the main frame, by retractable frame hidden in storage rack, the far / near travel of main roller frame and main friction roller on transfer frame is transferred extension, the support operation of long / short concrete electric pole is suitable, and the detection assembly of being set in the main frame, by rotating annular bracket in protective cover, the static / moving detection position of electromagnetic induction steel scanning instrument, infrared thermal imager and industrial high-precision camera is switched and adjusted, and the detection operation of concrete electric pole is suitable.The application is matched with detection position dynamic / static switching cooperation, adopts the double nondestructive testing means of surface flaw and inherent steel, for long and short, shape different tapered pole / constant-diameter pole, fully realizes high-sensitivity accurate detection effect, ensures that there is no omission, replaces artificial detection mode, more time-saving and labor-saving.

Description

Technical Field

[0001] This invention relates to the field of testing equipment technology, and in particular to a non-destructive testing device for concrete poles. Background Technology

[0002] Concrete poles are power support structures made of concrete and steel bars or wires. They are mainly used for the construction of power transmission lines and communication facilities. The cross-section is mostly ring-shaped, and the length ranges from 4.5 to 15 meters. Ring poles include two forms: tapered poles and poles of equal diameter.

[0003] Before concrete poles leave the factory, in order to ensure the yield rate of concrete poles, manual moving inspection equipment is usually used to conduct surface inspections on concrete poles of different lengths and shapes. This method is not only highly intensive, but also prone to missing areas, resulting in incomplete inspections and ultimately being counterproductive. Summary of the Invention

[0004] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the invention.

[0005] In view of the problems existing in the above and / or existing non-destructive testing devices for concrete poles, the present invention is proposed.

[0006] Therefore, the problem to be solved by this invention is how to solve the problem of incomplete inspection caused by manual inspection of traditional concrete poles.

[0007] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a non-destructive testing device for concrete poles, including a main frame with a protective cover, and a transfer component arranged on the outside of the main frame. The main roller frame and the main friction roller on the transfer frame are transferred and extended by a telescopic frame hidden in the storage frame, which is suitable for supporting long and short concrete poles. The device also includes a testing component arranged in the main frame, which switches and adjusts the static and dynamic detection positions of an electromagnetic induction rebar scanner, an infrared thermal imager and an industrial-grade high-precision camera by rotating a ring bracket in the protective cover, which is suitable for testing concrete poles.

[0008] As a preferred embodiment of the non-destructive testing device for concrete poles described in this invention, the transfer assembly further includes a circuit breaker fixed inside the storage frame, and the storage frame is fixed outside the main frame. The telescopic frame disposed between the storage frame and the transfer frame adopts a scissor-type electric telescopic design driven by a telescopic cylinder. An electromagnet electrically connected to the circuit breaker is fixed inside the storage frame, and a fixed magnet attracted and positioned by the electromagnet is fixed inside the transfer frame.

[0009] As a preferred embodiment of the non-destructive testing device for concrete poles described in this invention, a drive motor is fixed on the outer side of the transfer frame, and a main roller with a rubber sleeve is sleeved on the output shaft of the drive motor, and an auxiliary roller that is synchronously matched with the main roller is fixed on the inner side of the transfer frame.

[0010] As a preferred embodiment of the non-destructive testing device for concrete poles according to the present invention, wherein: a secondary roller frame is fixed on the storage frame and is matched with the main roller frame for supporting the main roller frame, and the secondary roller frame is used to support the head end of the concrete pole, and the main roller frame is used to support the tail end of the concrete pole; an electric push rod is longitudinally arranged on the inner side of the transfer frame, and the piston rod of the electric push rod passes through the transfer frame and is fixed to the main roller frame.

[0011] As a preferred embodiment of the non-destructive testing device for concrete poles of the present invention, wherein: an electric cylinder is longitudinally arranged on the outer side of the transfer frame, and a lifting frame is fixed on the piston rod of the electric cylinder; a convex sliding plate is fixed at the bottom of the two sets of lifting frames; and a concave sliding groove is opened on the inner side of the transfer frame to slide with the convex sliding plate.

[0012] As a preferred embodiment of the non-destructive testing device for concrete poles described in this invention, stepper motors are fixed diagonally on two sets of lifting frames, and main friction rollers are sleeved on the output shafts of the stepper motors. Auxiliary friction rollers are rotatably distributed diagonally with the main friction rollers within the two sets of lifting frames. Both the diagonally distributed main friction rollers and auxiliary friction rollers are inclined toward the tail end of the concrete pole supported on the main roller frame, and displacement sensors are fixed on the outer side of the lifting frames.

[0013] As a preferred embodiment of the non-destructive testing device for concrete poles according to the present invention, the testing component further includes a servo motor fixed inside the main frame, and a differential gear is sleeved on the output shaft of the servo motor, and a rotation sensor is fixed on the outside of the differential gear.

[0014] As a preferred embodiment of the non-destructive testing device for concrete poles described in this invention, the differential gear is meshed with a differential gear ring on its outer side, and the differential gear ring is fixedly sleeved with an annular bracket. A T-shaped groove is annularly opened on the annular bracket, and a T-shaped ring fixed to the protective cover rotates in the T-shaped groove.

[0015] As a preferred embodiment of the non-destructive testing device for concrete poles according to the present invention, the two sets of electromagnetic induction rebar scanners, infrared thermal imagers, and industrial-grade high-precision cameras are all fixed on the outside of the annular bracket in a triangular equidistant arrangement; the inner diameter of the two sets of annular brackets is larger than the outer diameter of the top end of the concrete pole.

[0016] As a preferred embodiment of the non-destructive testing device for concrete poles according to the present invention, wherein: an impact elastic wave detector is longitudinally mounted on the main frame, and the detection end of the impact elastic wave detector is provided with an impact head driven by an electric cylinder; the two sets of impact elastic wave detectors and the annular bracket are located on the same horizontal line and on the same vertical line as the concrete pole.

[0017] The beneficial effects of this invention are as follows: Based on the adjustable telescopic conditions of concealment / extension, and using a diagonal friction drive method, it adaptively achieves the dual effects of stable support and extended transfer for tapered / equal-diameter poles of varying lengths and shapes. This not only occupies a small area, making it suitable for rapid transportation and small-site operations, but also meets the non-destructive testing requirements of mainstream concrete poles on the market. Simultaneously, it is combined with dynamic / static switching of the testing position, employing dual non-destructive testing methods for both surface defects and internal reinforcement. This comprehensively achieves highly sensitive and accurate testing results for tapered / equal-diameter poles of varying lengths and shapes, ensuring no omissions, replacing manual testing methods, and saving more time and effort. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the following description of the embodiments will be briefly introduced. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a diagram showing the testing status of a non-destructive testing device for concrete poles.

[0020] Figure 2 This is an initial state diagram of the non-destructive testing device for concrete poles.

[0021] Figure 3 This is a diagram showing the extended state of the transfer component of the non-destructive testing device for concrete poles.

[0022] Figure 4 This is a diagram showing the hidden state of the transfer component of the non-destructive testing device for concrete poles.

[0023] Figure 5 This is a partial rear view of the transfer assembly of the non-destructive testing device for concrete poles.

[0024] Figure 6 This is a bottom view of the main frame and testing components of the non-destructive testing device for concrete poles.

[0025] Figure 7 A bottom-view cross-sectional view of the protective cover and testing components of a non-destructive testing device for concrete poles.

[0026] In the diagram: 1. Main frame; 2. Protective cover; 31. Storage rack; 32. Telescopic rack; 33. Transfer rack; 34. Main roller frame; 35. Auxiliary roller frame; 36. Stepper motor; 37. Main friction roller; 38. Auxiliary friction roller; 4. Circuit breaker; 5. Electromagnet; 6. Fixed magnet; 7. Main roller; 8. Drive motor; 9. Auxiliary roller; 10. Electric cylinder; 11. Lifting frame; 12. Convex slide plate; 13. Concave slide groove; 14. Displacement sensor; 15. Electric push rod; 161. Servo motor; 162. Differential gear; 163. Differential gear ring; 164. Ring bracket; 165. Electromagnetic induction rebar scanner; 166. Infrared thermal imager; 167. Industrial-grade high-precision camera; 168. Impact elastic wave detector; 17. Rotation sensor; 18. T-ring; 19. T-slot. Detailed Implementation

[0027] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0028] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and those skilled in the art can make similar extensions without departing from the spirit of the invention. Therefore, the invention is not limited to the specific embodiments disclosed below.

[0029] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that is mutually exclusive with other embodiments.

[0030] Example 1, referring to Figures 1 to 7 This is the first embodiment of the present invention. This embodiment provides a non-destructive testing device for concrete poles, including a main frame 1 with a protective cover 2, and a transfer assembly is provided on the outside of the main frame 1. The telescopic frame 32, which is hidden in the storage frame 31, transfers and extends the long / short stroke of the main roller frame 34 and the main friction roller 37 on the transfer frame 33. It is suitable for supporting long / short concrete poles and transferring tapered / equal diameter concrete poles.

[0031] Specifically, it also includes a circuit breaker 4 fixed inside the storage rack 31, and the storage rack 31 is fixed outside the main frame 1. The telescopic rack 32 set between the storage rack 31 and the transfer rack 33 adopts a scissor-type electric telescopic design driven by a telescopic cylinder, which provides convenience for supporting concrete poles of different lengths.

[0032] When long concrete poles need to be inspected, the telescopic cylinder drives the transfer frame 33 and its entire structure to extend forward to the maximum extent through the telescopic frame 32, which adopts a scissor-type electric telescopic design, to meet the support requirements of long concrete poles.

[0033] When short concrete poles need to be inspected, a telescopic cylinder drives a telescopic frame 32 with a scissor-type electric telescopic design to extend and move the transfer frame 33 and its entire structure forward to a predetermined extent to meet the support requirements of the short concrete poles.

[0034] When there is no need to inspect long / short concrete poles, the telescopic frame 32 retracts to its minimum size and is hidden in the storage rack 31 in its initial state, reducing the footprint. This not only facilitates the rapid transportation of the small-footprint inspection device, but also provides dust protection for the telescopic frame 32.

[0035] An electromagnet 5, which is electrically connected to the circuit breaker 4, is fixed on the inner side of the storage rack 31. The circuit breaker 4 adaptively controls the on / off state of the electromagnet 5. A fixed magnet 6, which is attracted and positioned to the electromagnet 5, is fixed on the inner side of the transfer rack 33.

[0036] Electromagnet 5 and fixed magnet 6 are used to electromagnetically position the transfer rack 33 and storage rack 31 in the initial hidden state, providing a positioning measure for the telescopic rack 32 hidden inside, and preventing the telescopic rack 32 and transfer rack 33 in the non-detection state from loosening and detaching from the storage rack 31 due to shaking.

[0037] That is, when there is no need to inspect the long / short concrete poles, the circuit breaker 4 controls the electromagnet 5 to be energized, and the energized electromagnet 5 electromagnetically attracts the attached fixed magnet 6. At this time, the telescopic frame 32 and the transfer frame 33 are in the initial hidden state, and the electromagnetic positioning of the telescopic frame 32 and the transfer frame 33 in the initial state is completed, and the positioning measures are applied.

[0038] When it is necessary to inspect long / short concrete poles, the circuit breaker 4 controls the electromagnet 5 to de-energize, thereby releasing the electromagnetic positioning measures of the telescopic frame 32 and the transfer frame 33, so that the telescopic frame 32 can drive the transfer frame 33 to extend and adjust.

[0039] A drive motor 8 is fixed on the outside of the transfer frame 33, and a main roller 7 with a rubber sleeve is sleeved on the output shaft of the drive motor 8. An auxiliary roller 9 that is synchronously matched with the main roller 7 is fixed on the inside of the transfer frame 33.

[0040] When the telescopic frame 32 drives the transfer frame 33 to extend and transfer, the synchronous control drive motor 8 drives the main roller 7 to move the transfer frame 33 and its whole body forward in accordance with the telescopic frame 32's extension speed, thereby reducing the extension burden of the telescopic frame 32.

[0041] The main roller 7 and auxiliary roller 9, which move synchronously with the telescopic frame 32, provide stable support for the transfer frame 33, preventing it from swaying or tilting during the transfer process.

[0042] Specifically, the storage rack 31 is fixed with a secondary roller frame 35 that is matched with the main roller frame 34 for support. The secondary roller frame 35 is used to support the head end of the concrete pole, and the main roller frame 34 is used to support the tail end of the concrete pole, thus meeting the support requirements of the head and tail ends of the tapered concrete pole.

[0043] An electric push rod 15 is longitudinally arranged on the inner side of the transfer frame 33, and the piston rod of the electric push rod 15 passes through the transfer frame 33 and is fixed to the main roller frame 34. The electric push rod 15 adjusts the stroke of the main roller frame 34 according to the shape of the current concrete pole to meet the stable support requirements of the tapered / equal diameter concrete pole.

[0044] That is, when supporting a tapered concrete pole that is large at the top and small at the bottom, the electric push rod 15 drives the main roller frame 34 to rise, and when it is slightly higher than the auxiliary roller frame 35, it forces the tapered concrete pole supported on the main roller frame 34 and the auxiliary roller frame 35 to tend to be horizontal, which is conducive to the accurate detection of the horizontality of the tapered concrete pole.

[0045] When supporting equal-diameter concrete poles with the same diameter at both ends, the electric push rod 15 drives the main roller frame 34 to rise and, when it is on the same horizontal line as the auxiliary roller frame 35, forces the equal-diameter concrete poles supported on the main roller frame 34 and the auxiliary roller frame 35 to tend to be horizontal, which is beneficial for the accurate detection of the horizontality of equal-diameter concrete poles.

[0046] Specifically, an electric cylinder 10 is longitudinally arranged on the outer side of the transfer frame 33, and a lifting frame 11 is fixed on the piston rod of the electric cylinder 10. When the tapered / equal diameter concrete pole is transferred, the electric cylinder 10 drives the lifting frame 11 to move down, and forces the main friction roller 37 and auxiliary friction roller 38 inside to be tightly clamped to the tail end of the tapered / equal diameter concrete pole by interference fit.

[0047] The bottom of the two sets of lifting frames 11 is fixed with a convex sliding plate 12, and the inner side of the transfer frame 33 is provided with a concave sliding groove 13 that slides with the convex sliding plate 12. The convex sliding plate 12 and the concave sliding groove 13 play a sliding limit role for the lifting frame 11 during the lifting adjustment, so as to prevent the lifting frame 11 from shaking or tilting during the lifting adjustment.

[0048] Two sets of lifting frames 11 are fixed diagonally with stepper motors 36, and the output shafts of the stepper motors 36 are fitted with main friction rollers 37. Auxiliary friction rollers 38 are rotated inside the two sets of lifting frames 11, which are diagonally distributed with the main friction rollers 37. The main friction rollers 37 are driving rollers, and the auxiliary friction rollers 38 are limiting rollers.

[0049] After the electric cylinder 10 drives the two sets of main friction rollers 37 and auxiliary friction rollers 38, which are diagonally distributed inside the two sets of lifting frames 11, to be clamped at the tail end of the tapered / equal diameter concrete pole with an interference fit, the stepper motor 36 is turned on and drives the main friction rollers 37 to rotate clockwise / counterclockwise.

[0050] That is, when the stepper motor 36 drives the main friction roller 37 to rotate clockwise, the main friction roller 37, which is equipped with an interference fit, forces the tapered / equal diameter concrete pole to extend and move forward. The diagonally distributed auxiliary friction rollers 38 roll and limit the tapered / equal diameter concrete pole in the extended and moving state.

[0051] When the stepper motor 36 drives the main friction roller 37 to rotate counterclockwise, the main friction roller 37, which is equipped with an interference fit, forces the tapered / equal diameter concrete pole to retract and reset. The diagonally distributed auxiliary friction rollers 38 perform rolling limit on the tapered / equal diameter concrete pole in the retracted and reset state.

[0052] When extending and moving concrete poles of equal diameter, the stepper motor 36 can directly drive the equal diameter concrete pole to adjust the forward / backward stroke through the main friction roller 37. There is no need for the electric cylinder 10 to adjust the interference fit position of the main friction roller 37 through the lifting frame 11. This is suitable for adjusting the entire stroke of equal diameter concrete poles and is beneficial for subsequent non-destructive testing operations at different positions.

[0053] When extending and moving a tapered concrete pole, when the tapered concrete pole is moved to the middle / head end, the electric cylinder 10, through the lifting frame 11, adaptively adjusts the lifting stroke of the main friction roller 37, forcing the main friction roller 37 to always be stuck at the middle / head end of the tapered concrete pole. Then, the stepper motor 36 drives the tail end of the tapered concrete pole to adjust the forward / backward stroke through the main friction roller 37. This is suitable for adjusting the entire stroke of the tapered concrete pole, which is beneficial for subsequent non-destructive testing operations at different positions.

[0054] The two sets of main friction rollers 37 and auxiliary friction rollers 38, which are diagonally distributed, are inclined towards the tail end of the concrete pole supported on the main roller frame 34. This facilitates the main friction rollers 37 and auxiliary friction rollers 38, together with the main roller frame 34, to wrap and clamp the tapered / equal diameter concrete pole, which is conducive to the adjustment of the front / back stroke of the tapered / equal diameter concrete pole.

[0055] Furthermore, a displacement sensor 14 is fixed on the outside of the lifting frame 11. The displacement sensor 14 monitors the position of the transfer frame 33 in real time during the forward / backward transfer state, ensuring that the transfer frame 33 is moved into place in the forward / backward position, thus meeting the comprehensive inspection requirements of the subsequent tapered / equal diameter concrete poles.

[0056] When non-destructive testing of long / short concrete poles is required, the hoisting equipment first passes the tapered / equal-diameter concrete pole from the auxiliary roller frame 35 into the main roller frame 34. The main roller frame 34 and the auxiliary roller frame 35 adopt a dual-set design, which can support tapered and equal-diameter concrete poles at the same time, or support two tapered / equal-diameter concrete poles.

[0057] When extending and moving two concrete poles of different lengths and equal diameters, the two electric push rods 15 are simultaneously controlled to drive the main roller frame 34 upwards, so that it is on the same horizontal plane as the two sets of auxiliary roller frames 35. When extending and moving two tapered concrete poles of different lengths, the two electric push rods 15 are simultaneously controlled to drive the main roller frame 34 upwards, slightly higher than the two sets of auxiliary roller frames 35. The tail ends of the two tapered concrete poles are located on the two sets of main roller frames 34, and the head ends of the two tapered concrete poles are located on the two sets of auxiliary roller frames 35.

[0058] When extending and moving concrete poles of varying lengths, tapered and equal-diameter concrete poles, the main roller frame 34 at the tapered concrete pole position rises slightly higher than the two sets of auxiliary roller frames 35, while the main roller frame 34 at the equal-diameter concrete pole position rises to the same horizontal plane as the auxiliary roller frames 35, thus meeting the individual / synchronous support requirements of concrete poles of varying lengths, tapered / equal-diameter concrete poles.

[0059] Once the various lengths of the tapered / equal-diameter concrete poles are individually / synchronously supported in place, the two sets of electric cylinders 10 are synchronously controlled to drive the main roller frame 34 downward through the lifting frame 11. The main roller frame 34, which is in the height adjustment position, serves as the bottom transmission support point. The two sets of main friction rollers 37 and auxiliary friction rollers 38, which have moved down to their positions, are distributed in an alternating manner to apply interference pressure to the current tapered / equal-diameter concrete poles, thereby achieving the downward positioning effect for the various lengths of the tapered / equal-diameter concrete poles that have been individually / synchronously supported in place.

[0060] Subsequently, the two sets of circuit breakers 4 are controlled to simultaneously cut off the power to the electromagnets 5, forcing the two sets of electromagnets 5 to release the electromagnetic attraction state of the fixed magnets 6 after the power is cut off. With the storage rack 31 as a fixed support point, the built-in telescopic cylinder is controlled to drive the transfer rack 33 and its whole body to extend forward through the telescopic rack 32 with a scissor-type electric telescopic design. Simultaneously, the two sets of drive motors 8 are controlled to start and drive the main rollers 7 to move forward synchronously according to the transfer speed of the transfer rack 33 until the transfer rack 33 and its whole body extend to meet the length of the long / short concrete pole. The position is monitored by the displacement sensor 14 throughout the process.

[0061] If the tapered / equal-diameter concrete pole exceeds the conveying stroke of the telescopic frame 32, the main roller frame 34 and the auxiliary roller frame 35 serve as the bottom transmission support, correspondingly controlling the stepper motor 36 to start and drive the staggered main friction rollers 37, which in turn drive the extra-long tapered / equal-diameter concrete pole to continue to extend and move forward. The auxiliary friction roller 38 performs limit transmission on the extended extra-long tapered / equal-diameter concrete pole until it is fully extended and moved into place.

[0062] This system forces concrete poles of varying lengths and shapes (conical / equal diameter) to undergo comprehensive non-destructive testing by subsequent inspection equipment in an individual / synchronous extended transport state. Based on the adjustable telescopic conditions of concealment / extension, and employing a diagonal friction drive, it adaptively achieves both stable support and extended transport for conical / equal diameter poles of varying lengths and shapes. This not only has a small footprint, making it suitable for rapid transportation and small-site operations, but also meets the non-destructive testing requirements of mainstream concrete poles on the market, with minimal limitations.

[0063] Example 2, refer to Figures 1 to 7 This is the second embodiment of the present invention, which is based on the previous embodiment.

[0064] The detection components, located within the main frame 1, allow for switching and adjustment of the static / dynamic detection positions of the electromagnetic induction rebar scanner 165, infrared thermal imager 166, and industrial-grade high-precision camera 167 by rotating the annular bracket 164 within the protective cover 2. Employing a dual non-destructive testing approach that detects both surface defects and internal rebar, the system comprehensively achieves highly sensitive and accurate detection of tapered / equal-diameter poles of varying lengths and shapes. It is suitable for comprehensive non-destructive testing of mainstream concrete poles on the market.

[0065] Specifically, it also includes a servo motor 161 fixed inside the main frame 1, and a differential gear 162 is sleeved on the output shaft of the servo motor 161. A rotation sensor 17 is fixed on the outside of the differential gear 162. The servo motor 161 drives the differential gear 162 to rotate, and the rotation sensor 17 monitors the number of rotations of the differential gear 162 in real time in order to control the number of rotations of the ring bracket 164.

[0066] The outer side of the differential gear 162 is meshed with a differential gear ring 163, and the differential gear ring 163 is fixedly sleeved with the annular bracket 164. When the differential gear 162 is rotating, it drives the annular bracket 164 inside the two sets of differential gear rings 163 to rotate at a differential speed, providing rotational dynamic detection conditions for the electromagnetic induction rebar scanner 165, infrared thermal imager 166 and industrial-grade high-precision camera 167 fixed on the two sets of annular brackets 164. If static detection is required, the servo motor 161 stops working, and the electromagnetic induction rebar scanner 165, infrared thermal imager 166 and industrial-grade high-precision camera 167 on the two sets of annular brackets 164 perform non-destructive testing in a static manner.

[0067] A T-slot 19 is provided on the annular bracket 164, and a T-ring 18 fixed to the protective cover 2 is rotatably installed in the T-slot 19. The T-slot 19 and the T-ring 18 provide rotational support for the annular bracket 164 under differential rotation, so as to prevent the annular bracket 164 from shaking or tilting during rotation, which would affect the detection stability of the electromagnetic induction rebar scanner 165, infrared thermal imager 166 and industrial-grade high-precision camera 167 on it.

[0068] Specifically, the two sets of electromagnetic induction rebar scanners 165, infrared thermal imagers 166, and industrial-grade high-precision cameras 167 are all fixed to the outside of the annular bracket 164 in a triangular equidistant manner. This improves the rationality of the distribution of the electromagnetic induction rebar scanners 165, infrared thermal imagers 166, and industrial-grade high-precision cameras 167 and the uniformity of gravity distribution, and avoids the electromagnetic induction rebar scanners 165, infrared thermal imagers 166, and industrial-grade high-precision cameras 167 being concentrated on one side of the annular bracket 164, which would cause excessive weight and shaking.

[0069] The inner diameter of the two sets of ring brackets 164 is larger than the outer diameter of the concrete pole head, which meets the overall inspection requirements of the two sets of ring brackets 164 for tapered / equal diameter concrete poles, and avoids collision with the tapered / equal diameter concrete poles due to the inner diameter of the two sets of ring brackets 164 being too small. In addition, the detection positions of the electromagnetic induction rebar scanner 165, infrared thermal imager 166 and industrial-grade high-precision camera 167 are reserved with the optimal detection distance from the tapered / equal diameter concrete pole.

[0070] Specifically, an impact elastic wave detector 168 is longitudinally mounted on the main frame 1, and the detection end of the impact elastic wave detector 168 is equipped with an impact head driven by an electric cylinder. The impact head driven by the electric cylinder strikes the tapered / equal diameter concrete pole in a static state. The stress wave generated by the impact head is reflected in the pipe wall, defects, and inner wall of the tapered / equal diameter concrete pole. The two sets of impact elastic wave detectors 168 determine the internal voids, delamination, deep cracks, and effective wall thickness of the tapered / equal diameter concrete pole by waveform.

[0071] The two sets of impact elastic wave detectors 168 and the ring bracket 164 are located on the same horizontal line and on the same vertical line as the concrete pole, which improves the rationality of the distribution of the two sets of impact elastic wave detectors 168. This forces the impact heads on the two sets of impact elastic wave detectors 168 to accurately strike the tapered / equal diameter concrete pole, receive the feedback wave generated by the strike, and wirelessly connect to the PLC control panel on both sides of the main frame 1.

[0072] The electromagnetic induction rebar scanner 165 detects the following: the number of longitudinal main reinforcement bars, their positions, the spacing of spiral reinforcement bars, and the thickness of the concrete cover in tapered / equal-diameter concrete poles. Its operation involves continuous scanning along the tapered / equal-diameter concrete pole in both the circumferential and longitudinal directions to mark the positions of the main reinforcement bars. If the prestressed main reinforcement bars in the tapered / equal-diameter concrete pole are densely packed and the magnetic fields of adjacent reinforcement bars interfere with each other, the scanning speed of the electromagnetic induction rebar scanner 165 should be slowed down, and it should be wirelessly connected to the PLC control panel on both sides of the main frame 1.

[0073] If it is necessary to detect the degree of corrosion of the steel bars inside tapered / equal diameter concrete poles, the electromagnetic induction steel bar scanner 165 can be replaced with a pulsed eddy current steel bar detector. Neither the electromagnetic induction steel bar scanner 165 nor the pulsed eddy current steel bar detector requires contact with the tapered / equal diameter concrete pole. The pulsed eddy current steel bar detector can quantitatively assess the cross-sectional loss caused by the corrosion of the steel bars inside the tapered / equal diameter concrete pole.

[0074] The infrared thermal imager 166 primarily detects shallow defects in tapered / equal-diameter concrete poles. It does not require contact with the tapered / equal-diameter concrete poles and utilizes the thermal conductivity differences at the defects to quickly identify surface voids, large internal cavities, and water seepage channels. It is suitable for a general inspection of the appearance of batch tapered / equal-diameter concrete poles, serving as a preliminary screening. After anomalies are found, the electromagnetic induction rebar scanner 165 and the impact elastic wave detector 168 are used for precise positioning and diverse detection.

[0075] The industrial-grade high-precision camera 167 is mainly used to detect surface defects of tapered / equal-diameter concrete poles. It does not require contact with the tapered / equal-diameter concrete poles. Utilizing the high-definition lens of the industrial-grade high-precision camera 167, it can quickly identify impurities, dents, cracks, etc. on the surface of tapered / equal-diameter concrete poles. It is suitable for general surface inspection of tapered / equal-diameter concrete poles in batches, which can be used for initial screening. After anomalies are found, the electromagnetic induction rebar scanner 165 and the impact elastic wave detector 168 are used for precise positioning and diversity detection.

[0076] During use, when short, long / extra-long tapered / equal-diameter concrete poles are slowly moved outward in an individual / synchronous manner, the servo motor 161 is activated and drives two sets of differential gear rings 163 to rotate at different speeds via the differential gear 162. The two sets of differential gear rings 163, through two sets of annular brackets 164, drive the electromagnetic induction rebar scanner 165, infrared thermal imager 166, and industrial-grade high-precision camera 167, which are arranged in a triangular equidistant pattern, to perform non-destructive testing on the concrete poles of varying lengths and tapered / equal-diameter shapes during the slow outward movement, from beginning to end. The testing includes surface visual inspection, shallow thermal imaging, and non-destructive testing of deep rebar distribution and corrosion levels. The test data and images are displayed on the PLC control panel.

[0077] During the slow outward movement of short, long / extra-long tapered / equal-diameter concrete poles, either individually or synchronously, the outward movement of the concrete pole is stopped when the head of the concrete pole is at the detection position of the impact head on the impact elastic wave detector 168. The pole remains static, and the impact elastic wave detector 168, driven by an electric cylinder, performs non-destructive testing on the feedback wave generated at the head of the concrete pole. After the impact test at the head of the concrete pole is completed, the outward movement of the concrete pole continues until the middle / tail of the concrete pole reaches the detection position of the impact head on the impact elastic wave detector 168. Then, the impact elastic wave detector 168 performs non-destructive testing on the feedback waves generated at the middle and tail ends of the concrete pole using the impact head driven by an electric cylinder. Subsequently, static impact testing is performed on the short, long / extra-long tapered / equal-diameter concrete poles from head to tail.

[0078] With the switching between dynamic and static detection positions, it employs a dual non-destructive testing method from the outside in, targeting both surface defects and internal steel reinforcement. This enables highly sensitive and accurate detection of tapered / equal-diameter rods of varying lengths and shapes, ensuring no omissions and replacing manual inspection methods, thus saving time and effort.

[0079] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A non-destructive testing device for concrete utility poles, characterized in that: The system includes a main frame (1) with a protective cover (2) and a transfer assembly on the outside of the main frame (1). The telescopic frame (32) hidden in the storage rack (31) extends the long / short stroke of the main roller frame (34) and the main friction roller (37) on the transfer frame (33), which is suitable for supporting long / short concrete poles. The system also includes a detection assembly in the main frame (1). By rotating the annular bracket (164) in the protective cover (2), the static / dynamic detection positions of the electromagnetic induction rebar scanner (165), the infrared thermal imager (166), and the industrial-grade high-precision camera (167) can be switched and adjusted, which is suitable for detecting concrete poles.

2. The non-destructive testing device for concrete poles as described in claim 1, characterized in that: The transfer assembly also includes a circuit breaker (4) fixed inside the storage rack (31), and the storage rack (31) is fixed outside the main frame (1), and the telescopic frame (32) set between the storage rack (31) and the transfer rack (33) adopts a scissor-type electric telescopic design driven by a telescopic cylinder. The storage rack (31) has an electromagnet (5) that is electrically connected to the circuit breaker (4) fixed on its inner side, and the transfer rack (33) has a fixed magnet (6) that is attracted and positioned by the electromagnet (5) fixed on its inner side.

3. The non-destructive testing device for concrete poles as described in claim 1, characterized in that: A drive motor (8) is fixed on the outside of the transfer frame (33), and a main roller (7) with a rubber sleeve is sleeved on the output shaft of the drive motor (8), and an auxiliary roller (9) that is synchronously matched with the main roller (7) is fixed on the inside of the transfer frame (33).

4. The non-destructive testing device for concrete poles as described in claim 1, characterized in that: The storage rack (31) is fixed with a secondary roller frame (35) that is matched with the main roller frame (34) for support. The secondary roller frame (35) is used to support the head end of the concrete pole, and the main roller frame (34) is used to support the tail end of the concrete pole. An electric push rod (15) is longitudinally arranged on the inner side of the transfer frame (33), and the piston rod of the electric push rod (15) passes through the transfer frame (33) and is fixed to the main roller frame (34).

5. The non-destructive testing device for concrete poles as described in claim 4, characterized in that: An electric cylinder (10) is longitudinally placed on the outer side of the transfer frame (33), and a lifting frame (11) is fixed on the piston rod of the electric cylinder (10). A convex sliding plate (12) is fixed at the bottom of the two sets of lifting frames (11), and a concave sliding groove (13) that slides with the convex sliding plate (12) is opened on the inner side of the transfer frame (33).

6. The non-destructive testing device for concrete poles as described in claim 5, characterized in that: Two sets of lifting frames (11) are fixed diagonally with stepper motors (36), and the output shaft of the stepper motors (36) is fitted with a main friction roller (37). Two sets of lifting frames (11) are rotated with auxiliary friction rollers (38) diagonally distributed with the main friction rollers (37). The two sets of main friction rollers (37) and auxiliary friction rollers (38) distributed diagonally are inclined toward the tail end of the concrete pole supported on the main roller frame (34), and a displacement sensor (14) is fixed on the outside of the lifting frame (11).

7. The non-destructive testing device for concrete poles as described in claim 1, characterized in that: The detection assembly also includes a servo motor (161) fixed inside the main frame (1), and a differential gear (162) is sleeved on the output shaft of the servo motor (161), and a rotation sensor (17) is fixed on the outside of the differential gear (162).

8. The non-destructive testing device for concrete poles as described in claim 7, characterized in that: The differential gear (162) is meshed with a differential gear ring (163) on its outer side, and the differential gear ring (163) is fixedly sleeved with the annular bracket (164). A T-shaped groove (19) is opened in the annular bracket (164), and a T-shaped ring (18) fixed to the protective cover (2) is rotated in the T-shaped groove (19).

9. The non-destructive testing device for concrete poles as described in claim 1, characterized in that: Both sets of electromagnetic induction rebar scanners (165), infrared thermal imagers (166), and industrial-grade high-precision cameras (167) are fixed to the outside of the annular bracket (164) in a triangular equidistant shape. The inner diameter of the two sets of ring brackets (164) is larger than the outer diameter of the concrete pole head.

10. The non-destructive testing device for concrete poles as described in claim 1, characterized in that: An impact elastic wave detector (168) is longitudinally mounted on the main frame (1), and the detection end of the impact elastic wave detector (168) is equipped with an impact head driven by an electric cylinder. The two sets of impact elastic wave detectors (168) and the ring bracket (164) are located on the same horizontal line and on the same vertical line as the concrete pole.

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