A reference positioning device for overlapping areas of cable imaging

Abstract

This application discloses a reference positioning device for overlapping areas of cable imaging, comprising: a controller, a X-ray device, a first anchoring telescopic rod, a negative pressure connection assembly, an angle measuring connection part, a measuring rope, and an ultrasonic detection assembly; the first anchoring telescopic rod is used to connect to the wall of the cable well, and a reference frame is provided on the first anchoring telescopic rod; the ultrasonic detection assembly is connected to the X-ray device through the negative pressure connection assembly; the angle measuring connection part is disposed on the ultrasonic detection assembly; the measuring rope connects the reference frame and the angle measuring connection part; the angle measuring connection part is used to acquire the rope length information and deflection angle information of the measuring rope; the ultrasonic detection assembly is used to acquire the ultrasonic data of the cable; the controller is used to acquire the current position information of the ultrasonic detection assembly based on the rope length information and deflection angle information; the controller is used to calculate the corrected ultrasonic data when the ultrasonic detection assembly is located at the same position as the X-ray device based on the current position information and the ultrasonic data.

Description

Technical Field

[0001] This application relates to the field of cable flaw detection equipment technology, and in particular to a reference positioning device for overlapping areas of cable imaging. Background Technology

[0002] Terahertz waves lie between far-infrared and microwave frequencies, ranging from 0.1 to 10 THz. In terahertz optics, terahertz time-domain spectroscopy (TDS) is one of the most widely used techniques. THz-TDS is a coherent detection technique where different molecules absorb terahertz light energy of varying frequencies after being transmitted through a terahertz wave of a specific bandwidth, producing characteristic absorption peaks. The corresponding spectrum is known as the "terahertz fingerprint spectrum." By identifying the "fingerprint spectrum" of a substance, damage to cable materials can be detected.

[0003] Due to the different dielectric constants of high-voltage cable materials, their ability to reflect and absorb terahertz waves varies. Therefore, by receiving the reflected terahertz waves, converting them into digital signals on the DR board, and then processing and imaging them, the internal condition of the cable material can be reflected.

[0004] In practical applications, due to the presence of multiple types of radiation and the angular differences between flaw detection equipment from different radiation sources, coupled with the overlapping sections of cables in the cable's extension direction, flaw detection data from different angles will vary significantly in the overlapping areas of the cables. This results in large data errors, which in turn affect the assessment of the cable's health condition. Summary of the Invention

[0005] In view of this, the purpose of this application is to provide a reference positioning device for cable imaging overlapping area, so as to solve the problem of large error in existing cable overlapping area detection methods.

[0006] To achieve the above technical objectives, this application provides a reference positioning device for overlapping areas of cable imaging, comprising: a controller, a ray device, a first anchoring telescopic rod, a negative pressure connection assembly, an angle measuring connection part, a measuring rope, and an ultrasonic detection assembly;

[0007] The first anchoring telescopic rod is used to connect to the wall of the electric well, and a reference frame is provided on the first anchoring telescopic rod;

[0008] The ultrasonic detection component is connected to the radiation device via the negative pressure connection component;

[0009] The angle measurement connection is disposed on the ultrasonic detection assembly;

[0010] One end of the measuring rope is connected to the reference frame, and the other end is connected to the angle measuring connection part;

[0011] The controller is electrically connected to the angle measurement connection, the ultrasonic detection component, and the X-ray device;

[0012] The angle measuring connection is used to obtain the rope length information and deflection angle information of the measuring rope;

[0013] The ultrasonic detection component is used to acquire ultrasonic data of the cable;

[0014] The controller is used to obtain the current position information of the ultrasonic detection component based on the rope length information and the deflection angle information;

[0015] The controller is used to calculate the corrected ultrasound data when the ultrasonic detection component is located at the same position as the X-ray device, based on the current location information and the ultrasonic detection data.

[0016] Furthermore, there are multiple angle measuring connectors, measuring ropes, and ultrasonic detection components;

[0017] Multiple angle measuring connectors, measuring ropes, and ultrasonic detection components are connected one-to-one.

[0018] Furthermore, the reference frame is an isosceles trapezoid;

[0019] The multiple angle measuring connectors, measuring ropes, and ultrasonic detection components are symmetrically distributed about the reference frame.

[0020] Furthermore, the negative pressure connection assembly includes a negative pressure connector and a negative pressure connector base;

[0021] The ultrasonic detection component is rotatably mounted on the negative pressure connector.

[0022] The negative pressure connector includes a negative pressure vent pipe;

[0023] One end of the negative pressure vent tube is connected to the negative pressure connection seat, and the other end of the negative pressure vent tube is connected to a suction cup;

[0024] The suction cup is used to attach to the radiation device.

[0025] Furthermore, the negative pressure connector includes a housing.

[0026] The housing of the seat is provided with a buffer air collection chamber that can be connected to a one-way valve and an air pump.

[0027] The connectable one-way valve connects to one end of the negative pressure vent pipe;

[0028] The buffer gas collection chamber is connected to the air pump through a vent hole;

[0029] The buffer gas collection chamber is connected to the outside through an exhaust port;

[0030] The air pump is used to extract the gas inside the housing and discharge it through the buffer gas collection chamber.

[0031] Furthermore, the first anchoring telescopic rod includes an inner telescopic sleeve and an outer telescopic sleeve;

[0032] The inner telescopic sleeve is equipped with a hydraulic support inner tube.

[0033] The hydraulic support inner tube extends from the inner telescopic sleeve into the outer telescopic sleeve;

[0034] Both ends of the hydraulic support inner tube are equipped with telescopic rods;

[0035] One end of the telescopic rod is inserted into the hydraulic support inner tube, and the other end of the telescopic rod is fixed to the inner telescopic sleeve or the outer telescopic sleeve;

[0036] The hydraulic support inner tube is equipped with a hydraulic pump that can extend or retract the telescopic rod.

[0037] Both the inner and outer telescopic sleeves are equipped with auxiliary support springs.

[0038] The auxiliary support spring is sleeved on the outside of the telescopic rod;

[0039] One end of the auxiliary support spring is fixed to the hydraulic support inner tube, and the other end of the auxiliary support spring is fixed to the inner telescopic sleeve or the outer telescopic sleeve.

[0040] Furthermore, the angle measuring connection includes a connection housing;

[0041] The connecting part housing is provided with a plug-in fixing component;

[0042] A connecting end is provided between the plug-in fixing component and the measuring rope;

[0043] One end of the connecting end is fixedly connected to a fixing component, and the other end of the connecting end is fixed with a measuring rope;

[0044] The outer shell of the connecting part is provided with an angle measuring component capable of measuring the deflection angle of the measuring rope;

[0045] The measuring rope passes through the angle measuring component.

[0046] Furthermore, the angle measuring component includes an outer sleeve;

[0047] The outer sleeve is equipped with a hydraulic washer;

[0048] The hydraulic washer circumferentially covers the measuring rope;

[0049] Several pressure columns are provided between the hydraulic washer and the outer sleeve;

[0050] Each pressure column is connected to a pressure sensor.

[0051] Furthermore, the reference frame includes a reference frame and a support frame;

[0052] The support frame is fixedly connected to the reference frame;

[0053] The reference frame is equipped with a rope calibration end;

[0054] The rope calibration end includes a reference sphere;

[0055] The reference sphere is equipped with an end-angle measuring component.

[0056] The structure of the end-angle measuring component is the same as that of the angle measuring component.

[0057] Furthermore, one end of the measuring rope that passes through the reference frame is connected to a rope storage box;

[0058] The storage box for the rope includes a box body;

[0059] The box contains a rope storage cavity;

[0060] At least two sets of rope stabilizing components are provided outside the rope storage cavity;

[0061] The measuring rope is clamped between the two sets of rope stabilization components;

[0062] The rope stabilization assembly includes a telescopic support rod;

[0063] One end of the telescopic support rod is fixed to the box body, and the other end is provided with a support plate;

[0064] The support plate is provided with several rollers;

[0065] The roller abuts against the measuring rope.

[0066] As can be seen from the above technical solutions, this application provides a reference positioning device for overlapping areas of cable imaging, including: a controller, a ray device, a first anchoring telescopic rod, a negative pressure connection assembly, an angle measuring connection part, a measuring rope, and an ultrasonic detection assembly; the first anchoring telescopic rod is used to connect to the wall of the cable well, and a reference frame is provided on the first anchoring telescopic rod; the ultrasonic detection assembly is connected to the ray device through the negative pressure connection assembly; the angle measuring connection part is disposed on the ultrasonic detection assembly; one end of the measuring rope is connected to the reference frame, and the other end is connected to the angle measuring connection part; the controller is electrically connected to the angle measuring connection part, the ultrasonic detection assembly, and the ray device; the angle measuring connection part is used to acquire the rope length information and deflection angle information of the measuring rope; the ultrasonic detection assembly is used to acquire the ultrasonic data of the cable; the controller is used to acquire the current position information of the ultrasonic detection assembly based on the rope length information and deflection angle information; the controller is used to calculate the corrected ultrasonic data when the ultrasonic detection assembly is located at the same position as the ray device based on the current position information and the ultrasonic data.

[0067] In this solution, after obtaining the rope length and deflection angle information through the angle measurement connection, the controller can correct the ultrasonic data to obtain corrected ultrasonic data, thereby reducing the detection error caused by the X-ray equipment and ultrasonic detection components being located in different positions, and effectively solving the problem of large errors in the existing detection methods for overlapping cable areas. Attached Figure Description

[0068] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0069] Figure 1 This is a schematic diagram of the overall structure of a cable imaging overlapping area reference positioning device provided in an embodiment of this application;

[0070] Figure 2 A cross-sectional view showing the position of the ultrasonic detection component of a cable imaging overlap area reference positioning device provided in an embodiment of this application;

[0071] Figure 3 A cross-sectional view of a connectable one-way valve for a cable imaging overlapping area reference positioning device provided in this application embodiment;

[0072] Figure 4A cross-sectional view of the first anchoring telescopic rod of a cable imaging overlapping area reference positioning device provided in an embodiment of this application;

[0073] Figure 5 A cross-sectional view of an angle measurement component of a cable imaging overlap area reference positioning device provided in an embodiment of this application;

[0074] Figure 6 A schematic diagram of the insertion and fixing assembly of a cable imaging overlapping area reference positioning device provided in this application embodiment;

[0075] Figure 7 This is a cross-sectional schematic diagram of the reference frame and the cable storage box of a cable imaging overlapping area reference positioning device provided in an embodiment of this application. Detailed Implementation

[0076] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. Based on the embodiments in this application specification, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection claimed in this application.

[0077] In the description of the embodiments of this application, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this application. In addition, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0078] In the description of the embodiments of this application, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a replaceable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this application according to the specific circumstances.

[0079] Please see Figure 1 The cable imaging overlapping area reference positioning device provided in this application embodiment includes: a controller, a ray device, a first anchoring telescopic rod 7, a negative pressure connection assembly, an angle measuring connection part 4, a measuring rope 5, and an ultrasonic detection assembly 3.

[0080] The first anchoring telescopic rod 7 is used to connect to the wall of the electric well, and a reference frame 6 is provided on the first anchoring telescopic rod 7; the ultrasonic detection component 3 is connected to the X-ray equipment through a negative pressure connection component; the angle measuring connection part 4 is provided on the ultrasonic detection component 3; one end of the measuring rope 5 is connected to the reference frame 6, and the other end is connected to the angle measuring connection part 4; the controller electrically connects the angle measuring connection part 4, the ultrasonic detection component 3 and the X-ray equipment; the angle measuring connection part 4 is used to obtain the rope length information and deflection angle information of the measuring rope 5; the ultrasonic detection component 3 is used to obtain the ultrasonic data of the cable; the controller is used to obtain the current position information of the ultrasonic detection component 3 according to the rope length information and deflection angle information; the controller is used to calculate the corrected ultrasonic data when the ultrasonic detection component 3 is located at the same position as the X-ray equipment according to the current position information and the ultrasonic detection data.

[0081] Currently, visibility at cable installation locations is generally poor, making it difficult to determine whether cables overlap in a given area using visual methods. This inability to determine cable overlap can lead to misinterpretations of flaw detection data, such as misclassifying overlapping cables as cracked or damaged cables as normal. This results in incorrect assessments of cable health, leading to under-maintenance of cable sections, wasted resources on sections that don't require maintenance, or insufficient material preparation for cable maintenance due to misjudgments, resulting in wasted time. All of these situations can cause significant economic losses in cable maintenance.

[0082] This embodiment is based on multi-ray fusion flaw detection. Radiographic testing generally images through non-metallic materials, making it difficult to accurately depict the cable's path, including the presence and size of overlapping or crossing sections. This embodiment utilizes the ultrasonic detection component 3, employing the ultrasonic echo imaging principle, to compensate for the weaknesses of radiographic imaging to a certain extent. It reveals the cable's specific path, enabling the detection and recording of overlapping areas. This facilitates subsequent review of the area and allows for further testing using alternative methods.

[0083] In this embodiment, the ultrasonic detection component 3 is connected to the X-ray equipment through a negative pressure connection assembly. By using the reference frame 6 as the reference point, the distance and angle between the ultrasonic detection component 3 and the reference frame 6 are measured using the angle measuring connection part 4 and the measuring rope 5, which can effectively obtain information about the location of the ultrasonic detection component.

[0084] Specifically, after the first anchoring telescopic rod 7 is fixedly connected to the well wall, the reference frame 6 and the X-ray equipment can serve as two fixed reference points. The angle of offset and the length of stretch of the measuring rope 5 relative to the reference frame 6 can be measured through the angle measuring connection 4, thereby obtaining rope length information and deflection angle information. The controller can calculate the current position information of the ultrasonic detection component 3 using the rope length information and deflection angle information. The calculation method for this position information can be performed using existing technology, which will not be elaborated here.

[0085] The aforementioned X-ray equipment is used to acquire X-ray inspection data of cables. Since the position of the X-ray equipment is fixed, the controller can obtain the detection results when the ultrasonic detection component 3 is located at the same position of the X-ray equipment after acquiring the current position information of the ultrasonic detection component 3, that is, obtain the corrected ultrasonic data. This fitting process can also be performed using existing technology, which will not be elaborated here.

[0086] In this embodiment, by using the controller in conjunction with the angle measuring connector 4 and the measuring rope 5, the X-ray equipment and the ultrasonic detection component can be simultaneously positioned synchronously, thereby obtaining X-ray flaw detection data and ultrasonic data at the same location. This improves the accuracy of matching various detection data and enables the acquisition of more accurate overlapping area locations, facilitating further subsequent detection. Since this embodiment involves multiple X-ray and ultrasonic detection methods, conventional electronic ranging would not only be affected in accuracy but may also face the risk of failure. Therefore, this embodiment uses the measuring rope 5 for physical measurement, which not only ensures the accuracy of the measured distance but also avoids the influence of various X-rays and ultrasonic waves on the measuring equipment, ensuring that the measurement will not fail.

[0087] In one embodiment, there are multiple angle measuring connectors 4, measuring ropes 5, and ultrasonic detection components 3; the multiple angle measuring connectors 4, measuring ropes 5, and ultrasonic detection components 3 are connected in a one-to-one correspondence.

[0088] Multiple ultrasonic detection components 3 can be used to perform ultrasonic detection on the cable from multiple angles, improving the diversity of data and the accuracy of the measurement structure.

[0089] Furthermore, the reference frame 6 is an isosceles trapezoid; the multiple angle measuring connection parts 4, the measuring rope 5, and the ultrasonic detection component 3 are symmetrically distributed about the reference frame 6.

[0090] Similarly, the symmetrical distribution of the ultrasonic detection components 3 about the reference frame 6 helps improve the accuracy of the measurement structure and facilitates the controller's calculations.

[0091] In one embodiment, see Figure 1 and Figure 2The negative pressure connection assembly includes a negative pressure connector 1 and a negative pressure connector 2; the ultrasonic detection assembly 3 is rotatably mounted on the negative pressure connector 2; the negative pressure connector 1 includes a negative pressure vent pipe 12; one end of the negative pressure vent pipe 12 is connected to the negative pressure connector 2, and the other end of the negative pressure vent pipe 12 is connected to a suction cup 11; the suction cup 11 adsorbs and connects to the radiation equipment.

[0092] The negative pressure vent tube 12 is used to provide negative pressure by drawing air into the suction cup 11, ensuring that the suction cup 1 firmly adsorbs the X-ray equipment. The negative pressure connector 2 can maintain the stability of the negative pressure connector 1's adsorption; the ultrasonic detection component 3 can rotate relative to the negative pressure connector 2, thereby adjusting the ultrasonic detection angle to achieve the purpose of aligning with the cable.

[0093] Furthermore, the negative pressure connection seat 2 includes a seat shell 24; the seat shell 24 is provided with a buffer gas collection chamber 23, which can be connected to a one-way valve 26 and an air pump 25; the one-way valve 26 is connected to one end of the negative pressure vent pipe 12; the buffer gas collection chamber 23 and the air pump 25 are connected through a vent hole 21; the buffer gas collection chamber 23 is connected to the outside through an exhaust hole 22; the air pump 25 is used to extract the gas in the seat shell 24 and discharge it through the buffer gas collection chamber 23.

[0094] The connectable one-way valve 26 can maintain the suction cup 11's adsorption by restricting the one-way flow of gas. The connectable one-way valve 26 can control the opening and closing between the valve and the housing 24, thereby stopping the suction cup 11 from adsorbing by connecting to the housing 24. This allows the negative pressure connector to adsorb the flaw detection equipment when needed and to detach when not needed. The buffer gas collection chamber 23 in this embodiment can prevent the exhaust port 22 from vibrating during exhaust, thus affecting the flaw detection.

[0095] Please see Figure 3 In one embodiment, please refer to Figures 1 to 3 The connectable one-way valve 26 includes a one-way valve body 262. A side passage pipe 261 is provided on the side of the one-way valve body 262. The side passage pipe 261 is connected to the inlet of the one-way valve body 262, and a controllable side valve 263 is provided on the side passage pipe 261. The controllable side valve 263 allows for the control of whether the side passage pipe 261 is connected to or disconnected from the interior of the housing 24.

[0096] The single-way valve body 262 may also contain a single-way ball; a limiting spring is provided between the single-way ball and the single-way valve body 262 to restrict the ball's movement trajectory. The single-way valve body 262 may have a rectangular groove whose inner diameter gradually decreases from the inner end to the outer end. The single-way ball is located within the rectangular groove. When the airflow within the single-way valve body 262 flows from the inside to the negative pressure vent pipe 12, the single-way ball blocks the rectangular groove; when the airflow within the single-way valve body 262 flows from the negative pressure vent pipe 12 to the inside, the single-way ball opens the rectangular groove. The limiting spring ensures that the single-way ball prevents gas backflow.

[0097] In one embodiment, see Figure 2 The ultrasonic detection component 3 includes a mounting base 32, and a rotating shaft 34 is provided at the center of the mounting base 32. The rotating shaft 34 can drive the mounting base 32 to rotate circumferentially. The ultrasonic detector 31 is mounted on the mounting base 32. A motor 33 is provided at one end of the rotating shaft 34, and a bearing 35 is provided at the other end. The rotation of the mounting base 32 is driven by the motor 33.

[0098] In one embodiment, see Figure 4 The first anchoring telescopic rod includes an inner telescopic sleeve 71 and an outer telescopic sleeve 75; the inner telescopic sleeve 71 is provided with a hydraulic support inner tube 72; the hydraulic support inner tube 72 extends from the inner telescopic sleeve 71 into the outer telescopic sleeve 75; both ends of the hydraulic support inner tube 72 are provided with telescopic rods 74; one end of the telescopic rod 74 is inserted into the hydraulic support inner tube 72, and the other end of the telescopic rod 74 is fixed to the inner telescopic sleeve 71 or the outer telescopic sleeve 75; the hydraulic support inner tube 72 is provided with a hydraulic pump 73 that can push out or retract the telescopic rod 74; both the inner telescopic sleeve 71 and the outer telescopic sleeve 75 are provided with auxiliary support springs 76; the auxiliary support springs 76 are sleeved on the outside of the telescopic rods 74; one end of the auxiliary support springs 76 is fixed to the hydraulic support inner tube 72, and the other end of the auxiliary support springs 76 is fixed to the inner telescopic sleeve 71 or the outer telescopic sleeve 75.

[0099] The first anchoring telescopic rod 7 has a first anchoring end 8 at its end. This embodiment may also include a second anchoring telescopic rod 11. The second anchoring telescopic rod 11 is symmetrical to the first anchoring telescopic rod 7 about the reference frame 6; the second anchoring telescopic rod 11 has a second anchoring end 12 at its end. The structure of the second anchoring telescopic rod 11 is the same as that of the first anchoring telescopic rod 7.

[0100] The first anchoring telescopic rod 7 is used to support the wall of the electric well and serves to determine the anchoring point. Anchoring the first anchoring telescopic rod 7 completes the benchmark positioning of the reference frame 6. In some environments, the first anchoring telescopic rod 7 needs to extend and retract to adapt to different conditions. Therefore, the extension and retraction of the telescopic rod 74 can be controlled by the hydraulic support inner tube 72, and the dynamic balance of the supporting force is achieved through the inner telescopic sleeve 71 and the outer telescopic sleeve 75. The hydraulic support inner tube 72, through hydraulic support at both ends, ensures the uniformity of the external force on the hydraulic support inner tube 72 and also ensures the stability of the support of the first anchoring telescopic rod 7. The auxiliary support spring 76 effectively assists in supporting the telescopic rod 74 and also protects the telescopic rod 74 when it is impacted, preventing the telescopic rod 74 from damaging the hydraulic support inner tube 72 and preventing the telescopic rod 74 from breaking directly. The first anchoring end 8 effectively uses friction to keep the anchoring position of the first anchoring telescopic rod 7 unchanged. The setting of the second anchoring telescopic rod 11 further stabilizes the anchoring position, achieving the purpose of improving the stability of the benchmark positioning.

[0101] Further, please refer to Figure 2 The angle measuring connection part 4 includes a connection part housing 41; a plug-in fixing component 42 is provided inside the connection part housing 41; a connection end 43 is provided between the plug-in fixing component 42 and the measuring rope 5; one end of the connection end 43 is fixed to the plug-in fixing component 42, and the other end of the connection end 43 is fixed to the measuring rope 5; an angle measuring component 44 capable of measuring the deflection angle of the measuring rope 5 is provided outside the connection part housing 41; the measuring rope 5 passes through the angle measuring component 44.

[0102] The connecting housing 41 serves as the structural basis of the angle measuring connecting part 4. The connecting end 43 can effectively connect the measuring rope 5 and the plug-in fixing component 42. By limiting the connecting end 43, the length of the measuring rope 5 can be accurately measured. By measuring the deflection angle of the measuring rope, the position of the ultrasonic detection component 3 can be effectively determined using the Pythagorean theorem. If the detection result shows that there is a cable overlap area at this position, the position can be effectively recorded by measuring the length data and deflection angle of the measuring rope, which is convenient for further screening of this position.

[0103] Further, please refer to Figure 5 The angle measuring component 44 includes an outer sleeve 441; a hydraulic washer 444 is provided inside the outer sleeve 441; the hydraulic washer 444 circumferentially covers the measuring rope 5; a plurality of pressure columns 443 are provided between the hydraulic washer 444 and the outer sleeve 441; each pressure column 443 is connected to a pressure sensor 442.

[0104] In this embodiment, the outer sleeve 441 serves as the main structural component; the hydraulic washer 444 is in direct contact with the measuring rope 5; when the measuring rope 3 deflects, the pressure column 443 is squeezed by the hydraulic washer 444, thereby causing the pressure sensor 442 to sense different values ​​of pressure formed by different pressure columns 443. Through the pressure change of the pressure column 443, the deflection angle of the measuring rope can be effectively reflected, thereby making the position recording more accurate and completing the benchmark positioning.

[0105] Specifically, after being pulled out, the measuring rope 5 is calibrated at the position of the reference frame 6 and moves with the X-ray equipment. Since the position of the reference frame 6 remains unchanged, the length of the measuring rope 5 and the angle formed between the measuring rope 5 and the reference frame 6 will change. If a cable overlap area is found, the cable overlap area can be located based on the position of the reference frame 6 by using the length and angle change data of the measuring rope 5. In this embodiment, the deflection angle of the measuring rope 5 is obtained based on the degree of compression of the hydraulic washer 444 by the measuring rope 5. When the measuring rope 5 deflects at a certain angle, the hydraulic washer 444 at that angle is compressed, thereby forming a greater pressure on the pressure column 443, while the pressure on the hydraulic washer 444 in other directions will be correspondingly reduced. The pressure change of the pressure column 443 in the circumferential direction can effectively reflect the deflection angle of the measuring rope 5. The length of the measuring rope 5 can be calculated by the length measuring device installed on the measuring rope 5 itself.

[0106] Further, please refer to Figure 1 and Figure 7 The reference frame 6 includes a reference frame 61 and a support frame 62; the support frame 62 is fixedly connected to the reference frame 61; the reference frame 61 is provided with a rope calibration end 10; the rope calibration end 10 includes a reference sphere 102; the reference sphere 102 is provided with an end-angle measuring component 101; the structure of the end-angle measuring component 101 is the same as the structure of the angle measuring component 44.

[0107] Further, please refer to Figure 2 and Figure 6 The plug-in fixing assembly 42 includes a disc 422; the disc 422 is provided with a plurality of sockets 423; a plurality of telescopic plates 421 are fixed inside the connecting part housing 41; the position of the telescopic plates 421 corresponds to the sockets 423: each telescopic plate 421 corresponds to one socket 423; the disc 422 is fixedly connected to the connecting end 43.

[0108] To ensure accurate benchmark positioning, this embodiment uses the support frame 62 as a base and the benchmark frame 61 as the benchmark position, which effectively calibrates the position of the measuring rope 5, thereby avoiding measurement errors caused by the storage of the measuring rope 5. To avoid measurement errors caused by the twisting of the measuring rope 5, this embodiment uses a disc 422 that can be fixed or released under the action of the plug-in fixing component 42, so that the measuring rope 5 can rotate, thereby eliminating the twisting of the measuring rope 5 and reducing measurement errors to a certain extent.

[0109] Furthermore, the end of the measuring rope 5 that passes through the reference frame 6 is connected to a rope storage box 9; the rope storage box 9 includes a box body 92; a rope storage cavity 93 is provided inside the box body 92; at least two sets of rope stabilizing components 91 are provided outside the rope storage cavity 93; the measuring rope 5 is sandwiched between the two sets of rope stabilizing components 91; the rope stabilizing component 91 includes a telescopic support rod 913; one end of the telescopic support rod 913 is fixed to the box body 92, and the other end is provided with a support plate 912; a plurality of rollers 911 are provided on the support plate 912; the rollers 911 abut against the measuring rope 5.

[0110] In this embodiment, by storing the measuring rope 5 inside the rope storage box 9, a sufficient length of measuring rope 5 is effectively ensured. Furthermore, the calibration via the trapezoidal reference frame 6 effectively avoids errors in the measurement length of the measuring rope 5. The rope stabilization component 91 ensures the measuring rope 5 remains stable during both extension and retraction, preventing excessive extension or retraction. The support plate 912 effectively provides support force, and the roller 911 effectively compresses the surface of the measuring rope 5, thus facilitating the maintenance of the measuring rope 5's stability.

[0111] The above are merely preferred embodiments of this application and are not intended to limit the present invention. Although this application has been described in detail with reference to examples, those skilled in the art can still modify the technical solutions described in the foregoing examples or make equivalent substitutions for some of the technical features. However, any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A reference positioning device for overlapping areas of cable imaging, characterized in that, include: Controller, X-ray equipment, first anchoring telescopic rod (7), negative pressure connection assembly, angle measuring connection part (4), measuring rope (5) and ultrasonic detection assembly (3); The first anchoring telescopic rod (7) is used to connect to the wall of the electric well, and a reference frame (6) is provided on the first anchoring telescopic rod (7). The ultrasonic detection component (3) is connected to the radiation device through the negative pressure connection component; The angle measurement connection (4) is disposed on the ultrasonic detection assembly (3); One end of the measuring rope (5) is connected to the reference frame (6), and the other end is connected to the angle measuring connection part (4). The controller is electrically connected to the angle measuring connection (4), the ultrasonic detection component (3), and the X-ray device; The angle measuring connection (4) is used to obtain the rope length information and deflection angle information of the measuring rope (5); The ultrasonic detection component (3) is used to acquire ultrasonic data of the cable; The controller is used to obtain the current position information of the ultrasonic detection component (3) based on the rope length information and the deflection angle information; The controller is used to calculate the corrected ultrasonic data when the ultrasonic detection component (3) is located at the same position as the X-ray device, based on the current position information and the ultrasonic data. The negative pressure connection assembly includes a negative pressure connector (1) and a negative pressure connector (2). The ultrasonic detection component (3) is rotatably mounted on the negative pressure connecting seat (2); The negative pressure connector (1) includes a negative pressure vent pipe (12); One end of the negative pressure ventilation pipe (12) is connected to the negative pressure connecting seat (2), and the other end of the negative pressure ventilation pipe (12) is connected to a suction cup (11). The suction cup (11) is used to attach to the radiation device; The angle measuring connection part (4) includes a connection part housing (41); The connecting part housing (41) is provided with a plug-in fixing component (42). A connecting end (43) is provided between the plug-in fixing component (42) and the measuring rope (5); One end of the connecting end (43) is fixedly connected to the fixing component (42), and the other end of the connecting end (43) is fixed to the measuring rope (5). The outer shell (41) of the connecting part is provided with an angle measuring component (44) capable of measuring the deflection angle of the measuring rope (5); The measuring rope (5) passes through the angle measuring assembly (44); The angle measuring component (44) includes an outer sleeve (441); The outer sleeve (441) is provided with a hydraulic washer (444). The hydraulic washer (444) circumferentially covers the measuring rope (5); Several pressure columns (443) are provided between the hydraulic washer (444) and the outer sleeve (441). Each pressure column (443) is connected to a pressure sensor (442).

2. The cable imaging overlap area reference positioning device according to claim 1, characterized in that, There are multiple angle measuring connectors (4), measuring ropes (5), and ultrasonic detection components (3); Multiple angle measuring connectors (4), measuring ropes (5), and ultrasonic detection components (3) are connected one-to-one.

3. The cable imaging overlap area reference positioning device according to claim 2, characterized in that, The reference frame (6) is an isosceles trapezoid; Multiple angle measuring connectors (4), measuring ropes (5), and ultrasonic detection components (3) are symmetrically distributed about the reference frame (6).

4. The cable imaging overlap area reference positioning device according to claim 1, characterized in that, The negative pressure connector (2) includes a housing (24); The housing (24) of the seat is provided with a buffer air collection chamber (23) which can be connected to a one-way valve (26) and an air pump (25). The connectable one-way valve (26) is connected to one end of the negative pressure vent pipe (12); The buffer gas collection chamber (23) is connected to the air pump (25) through a vent (21); The buffer gas collection chamber (23) is connected to the outside through the exhaust port (22); The air pump (25) is used to extract the gas inside the housing (24) and discharge it through the buffer gas collection chamber (23).

5. The cable imaging overlap area reference positioning device according to claim 1, characterized in that, The first anchoring telescopic rod includes an inner telescopic sleeve (71) and an outer telescopic sleeve (75). The inner telescopic sleeve (71) is provided with a hydraulic support inner tube (72). The hydraulic support inner tube (72) extends from the inner telescopic sleeve (71) into the outer telescopic sleeve (75); Both ends of the hydraulic support inner tube (72) are equipped with telescopic rods (74). One end of the telescopic rod (74) is inserted into the hydraulic support inner tube (72), and the other end of the telescopic rod (74) is fixed to the inner telescopic sleeve (71) or the outer telescopic sleeve (75); The hydraulic support inner tube (72) is equipped with a hydraulic pump (73) that can extend or retract the telescopic rod (74). Both the inner telescopic sleeve (71) and the outer telescopic sleeve (75) are equipped with auxiliary support springs (76). The auxiliary support spring (76) is sleeved on the outside of the telescopic rod (74); One end of the auxiliary support spring (76) is fixed to the hydraulic support inner tube (72), and the other end of the auxiliary support spring (76) is fixed to the inner telescopic sleeve (71) or the outer telescopic sleeve (75).

6. The cable imaging overlap area reference positioning device according to claim 1, characterized in that, The reference frame (6) includes a reference frame (61) and a support frame (62). The support frame (62) is fixedly connected to the reference frame (61); The reference frame (61) is provided with a rope calibration end (10). The rope calibration end (10) includes a reference sphere (102). The reference sphere (102) is provided with an end-angle measuring component (101). The structure of the end-angle measuring component (101) is the same as that of the angle measuring component (44).

7. The cable imaging overlap area reference positioning device according to claim 1, characterized in that, The measuring rope (5) passes through the reference frame (6) and is connected to a rope storage box (9) at one end. The storage rope box (9) includes a box body (92); The box (92) is provided with a rope storage cavity (93); At least two sets of rope stabilizing components (91) are provided outside the rope storage cavity (93); The measuring rope (5) is clamped between the two sets of rope stabilizing components (91); The rope stabilizing assembly (91) includes a telescopic support rod (913). One end of the telescopic support rod (913) is fixed to the box body (92), and the other end is provided with a support plate (912). The support plate (912) is provided with a plurality of rollers (911). The roller (911) abuts against the measuring rope (5).

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