Handheld X-ray flaw detection gun and flaw detection method

Abstract

The invention discloses a handheld X-ray flaw detection gun and a flaw detection method, and relates to the technical field of flaw detection, the handheld X-ray flaw detection gun comprises a gun body, an X-ray emission device, a detector, a display screen, a power supply module and a control module; the X-ray emitting device, the display screen, the power supply module and the control module are all connected with the gun body, the detector, the X-ray emitting device, the display screen and the power supply module are all electrically connected with the control module, the X-ray emitting device is used for emitting X-rays to a cable line to be subjected to flaw detection, the detector is used for receiving the X-rays and converting the X-rays into electric signals, and the electric signals are sent to the gun body. Compared with the prior art, the device has the beneficial effects that the device is convenient and efficient, the gun body is convenient to carry and operate, and impurities on the receiving surface of the detector are processed; and high protectiveness is achieved, and the receiving surface of the detector is shielded in a non-working state.

Description

Technical Field

[0001] The present invention relates to the technical field of flaw detection, and particularly relates to a handheld X-ray flaw detection gun and a flaw detection method. Background Art

[0002] In the power system, the 0.4 kV cable line is a key component of the low-voltage part of the distribution network and undertakes the important task of stably supplying power to users. The copper nose crimping and the structure of the low-voltage cable intermediate joint are common ways of cable connection. However, problems such as poor crimping, internal copper wire breakage, and oxidation may occur during the crimping process. These hidden dangers will lead to an increase in line resistance, heating, and even power outages, seriously affecting the power supply reliability.

[0003] After retrieval, there are devices using X-rays for flaw detection in the prior art. However, since the detector receiving surface of the X-ray flaw detection device in the prior art is usually exposed, it is easily bruised in the non-working state. And due to the complex and diverse use environments, impurities are likely to remain on the detector receiving surface after use, affecting the subsequent flaw detection accuracy and requiring timely treatment. The existing X-ray flaw detection devices do not have a treatment mechanism and cannot handle the impurities on the detector receiving surface, resulting in poor use effects. Summary of the Invention

[0004] To solve the deficiencies in the prior art, the present invention provides a handheld X-ray flaw detection gun and a flaw detection method to solve the technical problem that the prior art cannot protect the detector and cannot handle the impurities on the detector receiving surface.

[0005] The present invention adopts the following technical solutions.

[0006] The first aspect of the present invention discloses a handheld X-ray flaw detection gun, including: a gun body, an X-ray emitting device, a detector, a display screen, a power supply module, and a control module;

[0007] The X-ray emitting device, the display screen, the power supply module, and the control module are all connected to the gun body. The detector, the X-ray emitting device, the display screen, and the power supply module are all electrically connected to the control module. The X-ray emitting device is used to emit X-ray rays to the cable line to be flaw detected. The detector is used to receive the X-ray rays and convert them into electrical signals. A protection device is provided on the detector for handling the impurities on the detector receiving surface. The protection device includes a protection box, a moving part, a liquid spraying part, a treatment part, a control part, a telescopic part, and a liquid suction part. The protection box is movably connected to the detector in a guiding manner. The protection box is used to block the receiving surface of the detector. The treatment part is fixedly connected to the moving part. A guiding groove 1 is dug beside the treatment groove. The liquid suction part is movably arranged inside the guiding groove 1 in a guiding manner. The telescopic part is connected to the moving part through the control part. A temporary storage bin is dug at one end of the protection box away from the treatment groove. The liquid spraying part communicates with the temporary storage bin.

[0008] As an improvement, a first motion bin is dug inside the protection box. The motion part is located inside the first motion bin. The processing part and the control part are both located inside the processing groove. A linkage bin is dug beside the processing groove. The telescopic part is located inside the linkage bin.

[0009] As an improvement, the motion part includes a first motor, a screw rod, a first motion table, a baffle, a first connecting bar, and a distance sensor. The first motor is located beside the first motion bin. The screw rod is drivingly connected to the first motor. The first motion table is located inside the first motion bin and is guidingly and movably connected to the first motion bin. The screw rod passes through the first motion table and is threadedly connected to the first motion table. The baffle is arranged beside the first motion table by means of the first connecting bar. A pair of distance sensors are arranged inside the first motion bin. The pair of distance sensors are located at both ends of the screw rod. The distance sensors and the first motor are both electrically connected to the control module.

[0010] As an improvement, the liquid spraying part includes a liquid spraying head, a conveying channel, a second motion table, a ratchet rod, a first ratchet disc, a first rotating rod, a winding roller, a sealing plug, and a rope. A plurality of liquid spraying heads are arranged on the conveying channel. The conveying channel is arranged inside the processing groove. One end of the conveying channel is connected to the temporary storage bin. A second guiding groove is dug above the first motion bin. The ratchet rod is guidingly and movably connected to the second guiding groove. The second motion table is located inside the first motion bin. The second motion table is connected to the ratchet rod. A placing bin is dug beside the second guiding groove. The first ratchet disc is rotatably arranged inside the placing bin. The first ratchet disc cooperates with the ratchet rod. The first rotating rod is connected to the first ratchet disc. The first rotating rod extends into the temporary storage bin and is connected to the winding roller. The sealing plug is located at the connection point between the temporary storage bin and the conveying channel. The winding roller is connected to the sealing plug by means of the rope.

[0011] As an improvement, the processing part includes a processing seat, a synchronous bar, a restraining table, a processing piece, a motion piece, a first spiral steel, and a motion bar. The processing seat is arranged inside the processing groove. The first motion bin communicates with the processing groove through an opening. The synchronous bar passes through the opening and is guidingly and movably connected to the opening. Both ends of the synchronous bar are respectively connected to the processing seat and the first motion table. The restraining table is located inside the processing seat. A second motion bin is dug inside the restraining table. The motion piece is guidingly and movably connected to the second motion bin. The motion piece is connected to the inner wall of the second motion bin by means of the first spiral steel. The motion bar is connected to the motion piece. The motion bar passes through the restraining table and is connected to the processing seat. The restraining table is connected to the processing piece.

[0012] As an improvement, the control unit includes a camera, a CPU, an iron block, an electro-controlled magnetic device, a second spiral steel bar, a second connecting bar, an extrusion sheet, a third moving table, and a positioning sheet. A number of cameras are arranged in the processing trench. The CPU is disposed inside the linkage bin. The processing trench communicates with the linkage bin through a dug trench. The second connecting bar passes through the dug trench and is movably connected to the dug trench in a guiding manner. The second connecting bar extends into the linkage bin and is connected to the third moving table. The second connecting bar extends into the processing trench and is connected to the extrusion sheet. The iron block is located on one side of the surface of the third moving table close to the electro-controlled magnetic device. The electro-controlled magnetic device is located inside the linkage bin. The positioning sheet is disposed on the surface of the second connecting bar. The second spiral steel bar is disposed on the surface of the second connecting bar. The positioning sheet is connected to the inner wall of the third guiding trench by means of the second spiral steel bar.

[0013] As an improvement, the control unit further includes a protrusion. The protrusion is disposed at the lower end of the third moving table. A third guiding trench is dug around the dug trench. The positioning sheet is disposed inside the third guiding trench.

[0014] As an improvement, the telescopic part includes: a frustum, a first pulley, a second pulley, a synchronous belt, a second rotating rod, a first roller, and a second roller. The frustum and the second pulley are both rotatably connected to the protection box inside the linkage bin. A fourth guiding trench is dug on the surface of the frustum. The protrusion is movably connected to the fourth guiding trench in a guiding manner. The first pulley is connected to the frustum. A synchronous belt is disposed between the first pulley and the second pulley. The two ends of the second rotating rod are respectively connected to the second pulley and the first roller. The second rotating rod and the second roller are both rotatably connected to the protection box. Both the second roller and the first roller are located inside the processing trench. Both the second roller and the first roller are in rolling connection with the protection box to drive the detector to move relative to the protection box.

[0015] As an improvement, the liquid suction part includes: a mounting seat, a liquid suction block, a third connecting bar, a second motor, and a circular plate. The mounting seat is movably connected to the first guiding trench in a guiding manner. The liquid suction block is located on one side of the mounting seat close to the detector. The two ends of the third connecting bar are respectively connected to the mounting seat and the circular plate. The third connecting bar is rotatably connected to one end of the circular plate. The second motor is located inside the first guiding trench. The circular plate is drivingly connected to the second motor.

[0016] The second aspect of the present invention discloses an X-ray flaw detection method, including the following steps:

[0017] Carry the handheld X-ray flaw detection gun to the side of the cable line to be flaw detected, extend the receiving surface of the detector, and the X-ray emitting device emits X-ray rays to the cable line to be flaw detected. The detector receives the X-ray rays and converts them into electrical signals;

[0018] After the flaw detection is completed, retract the detector;

[0019] Obtain the graphic data of the detector receiving surface, compare the graphic data with the preset reference image data to obtain the cleanliness coefficient, and determine whether the detector receiving surface meets the standard. If the cleanliness coefficient of the detector receiving surface is greater than the set value, end the work; if the cleanliness coefficient of the detector receiving surface is less than or equal to the set value, inject the treatment liquid to process the impurities on the detector receiving surface, and the treatment liquid is sprayed onto the detector receiving surface by the liquid spraying head;

[0020] Push the treatment liquid and impurities to the side of the detector, and the detector expands and contracts intermittently for the staff to judge whether the processing is completed;

[0021] Stop working after the processing is completed.

[0022] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0023] Convenient and efficient. The gun body is convenient to carry and operate, can quickly detect the cable line on-site, greatly improve the detection efficiency, and can process the impurities on the detector receiving surface with the help of the protection device;

[0024] Precise positioning. Through X-ray flaw detection technology, the defect positions and shapes inside the copper nose crimping structure can be clearly displayed, realizing precise detection;

[0025] Non-destructive. The cable does not need to be disassembled during the detection process, and no damage will be caused to the cable line, ensuring the normal operation of the line;

[0026] Real-time display. The detection results are displayed on the display screen in real time, and the operator can immediately obtain the detection information and take corresponding measures in time;

[0027] High protection. The receiving surface of the detector is blocked in the non-working state to avoid being knocked and damaged. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a schematic structural diagram of the present invention;

[0029] Figure 2 It is a schematic structural diagram of the moving part of the present invention;

[0030] Figure 3 It is an enlarged schematic diagram of part A of the present invention;

[0031] Figure 4 It is a sectional view taken along the line B-B of the present invention;

[0032] Figure 5 It is an enlarged schematic diagram of part C of the present invention;

[0033] Figure 6 It is an enlarged schematic diagram of part D of the present invention.

[0034] 1. Gun body; 2. Display screen; 12. Protection box; 13. Moving part; 14. Liquid spraying part; 15. Processing part; 16. Control part; 17. Telescopic part; 18. Liquid suction part; 19. Detector; 212. First moving bin; 213. Processing groove; 214. First guiding groove; 215. Linkage bin; 216. Temporary storage bin; 312. First motor; 313. Screw rod; 314. First moving table; 315. Flap; 316. First connecting bar; 317. Distance sensor; 412. Liquid spraying head; 413. Delivery channel; 414. Second moving table; 415. Ratchet rod; 416. First ratchet disc; 417. First rotating rod; 418. Winding roller; 419. Sealing plug; 410. Rope; 421. Second guiding groove; 422. Placing bin; 512. Processing seat; 513. Synchronous bar; 514. Restraining table; 515. Processing piece; 516. Moving piece; 517. First spiral steel; 518. Moving bar; 519. Second moving bin; 612. Camera; 613. CPU; 614. Iron block; 615. Electromagnetic control device; 616. Second spiral steel; 617. Second connecting bar; 618. Extrusion piece; 619. Third moving table; 610. Positioning piece; 621. Protrusion; 622. Groove opening; 623. Third guiding groove; 712. Round platform; 713. First belt pulley; 714. Second belt pulley; 715. Synchronous belt; 716. Second rotating rod; 717. First pulley; 718. Second pulley; 719. Fourth guiding groove; 812. Mounting seat; 813. Liquid suction block; 814. Third connecting bar; 815. Second motor; 816. Round plate. Detailed implementation manners

[0035] To make the objectives, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. The embodiments described in this application are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the spirit of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present invention.

[0036] As Figures 1-5 shown, Embodiment 1 of the present invention provides a handheld X-ray flaw detection gun, including: gun body 1, X-ray emission device, detector 19, display screen 2, power supply module and control module;

[0037] The X-ray emitting device, display screen 2, power module and control module are all connected to the gun body 1. The detector 19, X-ray emitting device, display screen 2 and power module are all electrically connected to the control module. A protection device is provided on the detector 19. The protection device includes a protection box 12, a moving part 13, a liquid sprinkling part 14, a processing part 15, a control part 16, a telescopic part 17 and a liquid drawing part 18. The protection box 12 is connected to the detector 19 guide movement. A moving bin 212 is dug in the protection box 12. The moving part 13 is located on the inner side of the moving bin 212. A processing groove 213 is dug at one end of the protection box 12. The processing groove 213 and The moving bin 212 is connected, the processing part 15 and the control part 16 are both located on the inside of the processing groove 213, the processing part 15 and the moving part 13 are fixedly connected, a guide groove 214 is dug beside the processing groove 213, the liquid drawing part 18 is arranged on the inside of the guide groove 214 for guiding movement, a linkage bin 215 is dug beside the processing groove 213, the telescopic part 17 is located on the inside of the linkage bin 215, the telescopic part 17 is connected to the moving part 13 by means of the control part 16, a temporary storage bin 216 is dug at one end of the protective box 12 away from the processing groove 213, the liquid sprinkling part 14 is located above the processing groove 213, and the liquid sprinkling part 14 and the temporary storage bin 216 are connected. During the treatment phase, the motion unit 13 drives the liquid dispensing unit 14 to release the blockage at the junction between the temporary storage bin 216 and the delivery channel 413, allowing the treated liquid to flow to the receiving surface of the detector 19. Simultaneously, the motion unit 13 drives the processing unit 15 to dispose of impurities and the treated liquid on the receiving surface of the detector 19 to both sides of the detector 19. Simultaneously, the control unit 16 detects the cleanliness factor of the receiving surface of the detector 19. If the cleanliness factor is less than a set value, the processing unit 15 repeats the treatment of impurities and the treated liquid. Simultaneously, the telescopic unit 17 drives the liquid siphoning unit 18 to draw the treated liquid from the receiving surface of the detector 19 and dispose of impurities.

[0038] In a preferred but non-limiting embodiment of the present invention, the moving part 13 includes a first motor 312, a screw 313, a first moving table 314, a baffle 315, a first connecting strip 316, and a distance sensor 317. The first motor 312 is located beside the first moving chamber 212. The screw 313 is drivingly connected to the first motor 312. The first moving table 314 is located inside the first moving chamber 212 and is guidingly and movably connected to the first moving chamber 212. The screw 313 passes through the first moving table 314 and is threadedly connected to the first moving table 314. The baffle 315 is arranged beside the first moving table 314 by means of the first connecting strip 316. A pair of distance sensors 317 are arranged inside the first moving chamber 212. The pair of distance sensors 317 are located at both ends of the screw 313. The distance sensors 317 and the first motor 312 are both electrically connected to the control module. In the processing stage, the first motor 312 drives the screw 313 to rotate forward. The screw 313 drives the first moving table 314 to approach the first motor 312 inside the first moving chamber 212. If the first moving table 314 moves to the position closest to the first motor 312, the baffle 315 is in front of one of the distance sensors 317. This distance sensor 317 detects a shortening of the distance, and the control module drives the first motor 312 to rotate reversely, and the first moving table 314 moves away from the first motor 312. If the first moving table 314 drives the baffle 315 to move in front of the other distance sensor 317, the control module drives the first motor 312 to rotate forward so that the first moving table 314 realizes a reciprocating motion, ensuring the processing effect.

[0039] In a preferred but non-limiting embodiment of the present invention, the liquid spraying part 14 includes a liquid spraying head 412, a conveying channel 413, a second moving table 414, a ratchet rod 415, a first ratchet disc 416, a first rotating rod 417, a winding roller 418, a sealing plug 419 and a rope 410. A plurality of liquid spraying heads 412 are arranged on the conveying channel 413. The conveying channel 413 is arranged in the treatment trench 213. One end of the conveying channel 413 is connected to the temporary storage bin 216. A second guiding trench 421 is dug above the first moving bin 212. The ratchet rod 415 is movably connected to the second guiding trench 421 in a guiding manner. The second moving table 414 is located inside the first moving bin 212. The second moving table 414 is connected to the ratchet rod 415. A placing bin 422 is dug beside the second guiding trench 421. The first ratchet disc 416 is rotatably arranged inside the placing bin 422. The first ratchet disc 416 cooperates with the ratchet rod 415. The first rotating rod 417 is connected to the first ratchet disc 416. The first rotating rod 417 extends into the temporary storage bin 216 and is connected to the winding roller 418. The sealing plug 419 is located at the connection point between the temporary storage bin 216 and the conveying channel 413. The winding roller 418 is connected to the sealing plug 419 by means of the rope 410. If the first moving table 314 moves to directly in front of the distance sensor 317 far from the first motor 312, the first moving table 314 squeezes the second moving table 414 to move upward, driving the ratchet rod 415 to move upward inside the second guiding trench 421. The ratchet rod 415 drives the first ratchet disc 416 to rotate forward. The first rotating rod 417 follows the ratchet disc 416 to drive the winding roller 418 to rotate forward to wind the rope 410. The sealing plug 419 moves away from the connection point between the temporary storage bin 216 and the conveying pipeline 413. The treatment liquid inside the temporary storage bin 216 enters the conveying pipeline 413 and is sprayed onto the receiving surface of the detector 19 by the liquid spraying head 412. Synchronously, the baffle 315 blocks the distance sensor 317 far from the first motor 312. This distance sensor 317 detects a shortening of the distance, and the first motor 312 rotates forward. The first moving table 314 approaches the first motor 312. The sealing plug 419 returns to its original position under the action of gravity, blocking the connection point between the temporary storage bin 216 and the conveying channel 413. The second moving table 414 returns to its original position.

[0040] In a preferred but non-limiting embodiment of the present invention, the processing unit 15 includes a processing base 512, a synchronization bar 513, a restraint table 514, a processing member 515, a moving piece 516, a first spiral steel 517, and a moving bar 518. The processing base 512 is disposed inside the processing groove 213. The first moving chamber 212 communicates with the processing groove 213 through an opening. The synchronization bar 513 passes through the opening and is movably connected to the opening in a guiding manner. Two ends of the synchronization bar 513 are respectively connected to the processing base 512 and the first moving table 314. The restraint table 514 is disposed inside the processing base 512. A second moving chamber 519 is dug inside the restraint table 514. The moving piece 516 is movably connected to the second moving chamber 519 in a guiding manner. The moving piece 516 is connected to the inner wall of the second moving chamber 519 through the first spiral steel 517. The moving bar 518 is connected to the moving piece 516. The moving bar 518 passes through the restraint table 514 and is connected to the processing base 512. The restraint table 514 is connected to the processing member 515. In the processing stage, the processing member 515 pushes the first spiral steel 517, and the processing member 515 contacts the detector 19, capable of processing impurities and processing liquid on the receiving surface of the detector 19. The restraint table 514 and the processing base 512 cooperate to prevent the processing liquid from entering the second moving chamber 519.

[0041] In a preferred but non-limiting embodiment of the present invention, the control unit 16 includes a camera 612, a CPU 613, an iron block 614, an electro-controlled magnetic device 615, a second spiral steel 616, a second connecting strip 617, a pressing piece 618, a third moving table 619, a positioning piece 610, and a protrusion 621. A plurality of cameras 612 are arranged in the processing groove 213. The CPU 613 is disposed inside the linkage bin 215. The processing groove 213 communicates with the linkage bin 215 through a groove 622. The second connecting strip 617 passes through the groove 622 and is movably connected to the groove 622 in a guiding manner. The second connecting strip 617 extends into the linkage bin 215 and is connected to the third moving table 619. The second connecting strip 617 extends into the processing groove 213 and is connected to the pressing piece 618. The iron block 614 is located on the surface of the third moving table 619, on the side close to the electro-controlled magnetic device 615. The electro-controlled magnetic device 615 is located inside the linkage bin 215. The protrusion 621 is disposed at the lower end of the third moving table 619. A guiding groove three 623 is dug around the groove 622. The positioning piece 610 is disposed inside the guiding groove three 623. The positioning piece 610 is disposed on the surface of the second connecting strip 617. The second spiral steel 616 is disposed on the surface of the second connecting strip 617. The positioning piece 610 is connected to the inner wall of the guiding groove three 623 by means of the second spiral steel 616. In the initial stage, the electro-controlled magnetic device 615 is energized to generate a magnetic field. The third moving table 619 is in the position closest to the electro-controlled magnetic device 615. The iron block 614 and the electro-controlled magnetic device 615 are magnetically attracted together, and the second spiral steel 616 shortens. In the processing stage, the camera 612 acquires the graphic data of the receiving surface of the detector 19, uploads the graphic data to the CPU 613 for processing. The CPU 613 compares the uploaded graphic data with the preset reference image data to obtain a cleanliness coefficient, and determines whether the receiving surface of the detector 19 is clean.

[0042] In a preferred but non-limiting embodiment of the present invention, the telescopic part 17 includes: a frustum 712, a first pulley 713, a second pulley 714, a synchronous belt 715, a second rotating rod 716, a first roller 717 and a second roller 718. The frustum 712 and the second pulley 714 are rotationally connected to the protection box 12 in the linkage bin 215. A fourth guiding groove 719 is dug on the surface of the frustum 712, and the protrusion 621 is in guiding and movable connection with the fourth guiding groove 719. The first pulley 713 is connected to the frustum 712. The synchronous belt 715 is arranged between the first pulley 713 and the second pulley 714. The two ends of the second rotating rod 716 are respectively connected to the second pulley 714 and the first roller 717. The second rotating rod 716 and the second roller 718 are both rotationally connected to the protection box 12. The second roller 718 and the first roller 717 are both inside the processing groove 213, and the second roller 718 and the first roller 717 are both in rolling connection with the protection box 12 to drive the detector 19 to move relative to the protection box 12. During the processing, the protrusion 621 moves along the fourth guiding groove 719, causing the frustum 712 to rotate. The rotation of the frustum 712 causes the first pulley 713 to rotate. The first pulley 713 causes the second pulley 714 to rotate by means of the synchronous belt 715. The second pulley 714 causes the first roller 717 to rotate by means of the second rotating rod 716 to expand and contract the detector 19.

[0043] In a preferred but non-limiting embodiment of the present invention, the liquid suction part 18 includes: a mounting seat 812, a liquid suction block 813, a third connecting strip 814, a second motor 815 and a circular plate 816. The mounting seat 812 is in guiding and movable connection with the first guiding groove 214. The liquid suction block 813 is on the side of the mounting seat 812 close to the detector 19. The two ends of the third connecting strip 814 are respectively connected to the mounting seat 812 and the circular plate 816. The third connecting strip 814 is rotationally connected to one end of the circular plate 816. The second motor 815 is inside the first guiding groove 214, and the circular plate 816 is in driving connection with the second motor 815. During the processing, the second motor 815 causes the circular plate 816 to rotate, and by means of the third connecting strip 814, the mounting seat 812 reciprocates inside the first guiding groove 214. The liquid suction block 813 contacts the receiving surface of the detector 19. During the reciprocating movement of the mounting seat 812, the liquid suction block 813 is intermittently struck, causing the liquid suction block 813 to absorb the processing liquid, remove the impurities on the receiving surface of the detector 19 and allow the excess processing liquid to flow out. The processing part 515 can push this processing liquid to the side of the detector 19 to ensure effective processing.

[0044] The gun body 1 adopts a housing designed according to ergonomics, which is convenient for hand-held operation. The housing material has good insulation and wear resistance to ensure use safety and equipment life.

[0045] The X-ray emitting device can emit X-ray rays with specific intensity and frequency for penetrating the cable and the copper nose crimping structure.

[0046] The detector 19 can receive the X-ray rays passing through the cable and the crimping structure and convert them into electrical signals.

[0047] The display screen 2 is arranged at a position on the gun body 1 that is easy to observe, and is used to display the detection pattern and analysis results in real time.

[0048] The power supply module is built-in with a rechargeable battery to provide stable power support for the entire detection gun.

[0049] The control module is responsible for controlling the working parameters of the X-ray emitting device, data acquisition of the detector 19, control of the protection device, and processing and analysis of the pattern.

[0050] Embodiment 2 of the present invention provides an X-ray flaw detection method, which is based on a handheld X-ray flaw detection gun in Embodiment 1, and includes the following steps:

[0051] Carry the handheld X-ray flaw detection gun to the side of the cable line to be flaw detected, power on the electromagnetic control device 615, the electromagnetic control device 615 and the iron block 614 are magnetically attracted together, the spiral steel two 616 is in a shortened state, during the process of the iron block 614 approaching the electromagnetic control device 615, the moving platform three 619 drives the protrusion 621 to move along the guiding groove four 719, so that the frustum 712 rotates, the rotation of the frustum 712 causes the pulley one 713 to rotate, the pulley one 713 makes the pulley two 714 rotate by means of the synchronous belt 715, and the pulley two 714 makes the roller one 717 rotate by means of the rotating rod two 716 to extend the receiving surface of the detector 19, the X-ray emitting device emits X-ray rays to the cable line to be flaw detected, the detector 19 receives the X-ray rays and converts them into electrical signals, and view the detection results through the display screen 2;

[0052] After the flaw detection is completed, power off the electromagnetic control device 615, the spiral steel two 616 pushes the positioning piece 610, the connecting strip two 617, and the extrusion piece 618, the connecting strip two 617 drives the moving platform three 619 to move, the moving platform three 619 drives the protrusion 621 to move along the guiding groove four 719, so that the frustum 712 rotates, the rotation of the frustum 712 causes the pulley one 713 to rotate, the pulley one 713 makes the pulley two 714 rotate by means of the synchronous belt 715, and the pulley two 714 makes the roller one 717 rotate by means of the rotating rod two 716 to retract the detector 19;

[0053] The camera 612 acquires the graphic data of the receiving surface of the detector 19 and uploads the graphic data to the CPU 613 for processing. The CPU 613 compares the uploaded graphic data with the preset reference image data to obtain the cleanliness coefficient, and determines whether the receiving surface of the detector 19 meets the standard. If the cleanliness coefficient of the detector receiving surface is greater than the set value, the work ends; if the cleanliness coefficient of the receiving surface of the detector 19 is less than or equal to the set value, the attitude of the protection box 12 is adjusted so that the detector 19 is positioned below, an appropriate amount of processing liquid is injected into the temporary storage bin 216, the first motor 312 drives the screw 313 to rotate in the reverse direction, so that the first moving platform 314 moves away from the first motor 312 along the first moving bin 212, the processing seat 512 moves along with the first moving platform 314, and the processing part 515 processes the impurities on the receiving surface of the detector 19. During the process that the first moving platform 314 moves away from the first motor 312 along the first moving bin 212, the first moving platform 314 causes the second moving platform 414 to move away from the screw 313, so that the ratchet rod 415 moves away from the screw 313 under the guidance of the second guiding groove 421. During the process that the ratchet rod 415 moves away from the screw 313, the first ratchet disc 416 rotates in the positive direction, the rotating rod 417 causes the winding roller 418 to rotate in the positive direction, the sealing plug 419 disengages from the connection point between the temporary storage bin 216 and the conveying pipeline 413, and the processing liquid enters the conveying channel 413 and is sprayed onto the receiving surface of the detector 19 by the liquid spraying head 412;

[0054] Synchronously, the baffle 315 blocks the distance sensor 317 far from the first motor 312. When the distance sensor 317 detects a shortening of the distance, the first motor 312 drives the screw 313 to rotate forward, causing the first moving platform 314 to move closer to the first motor 312 along the first movement bin 212. Under the action of gravity, the sealing plug 419 returns to its original position, blocking the connection point between the temporary storage bin 216 and the conveying channel 413. The second moving platform 414 returns to its original position. The processing part 515 pushes these processing liquids and impurities to the side of the detector 19. When the processing seat 512 approaches the extrusion piece 618, it can squeeze the extrusion piece 618 to make it move. The second connecting bar 617 drives the third moving platform 619 to move and pushes the second spiral steel 616. The third moving platform 619 drives the protrusion 621 to move along the fourth guiding groove 719, causing the frustum 712 to rotate. The rotation of the frustum 712 causes the first pulley 713 to rotate. The first pulley 713 causes the second pulley 714 to rotate by means of the synchronous belt 715. The second pulley 714 causes the first roller 717 to rotate by means of the second rotating rod 716, extending the detector 19. When the processing seat 512 moves away from the extrusion piece 618, the second spiral steel 616 pushes the positioning piece 610, the second connecting bar 617, and the extrusion piece 618. The second connecting bar 617 drives the third moving platform 619 to move. The third moving platform 619 drives the protrusion 621 to move along the fourth guiding groove 719, causing the frustum 712 to rotate. The rotation of the frustum 712 causes the first pulley 713 to rotate. The first pulley 713 causes the second pulley 714 to rotate by means of the synchronous belt 715. The second pulley 714 causes the first roller 717 to rotate by means of the second rotating rod 716 to retract the detector 19, making the detector 19 stretch and retract intermittently, which is convenient for the staff to visually see whether the processing is completed. If the first moving platform 314 moves to the position closest to the first motor 312, the baffle 315 is directly in front of the distance sensor 317 close to the first motor 312. When this distance sensor 317 detects a shortening of the distance, the first motor 312 rotates reversely, so that the first moving platform 314 realizes a reciprocating motion to ensure the processing effect;

[0055] Synchronously, the second motor 815 causes the disc 816 to rotate. By means of the third connecting bar 814, the mounting seat 812 reciprocates inside the first guiding groove 214. The liquid suction block 813 contacts the receiving surface of the detector 19. During the reciprocating motion of the mounting seat 812, the liquid suction block 813 is intermittently struck, causing the liquid suction block 813 to dip up the processing liquid, remove the impurities on the receiving surface of the detector 19, and allow the excess processing liquid to flow out.

[0056] After the processing is completed, the first motor 312 and the second motor 815 stop working.

[0057] Compared with the prior art, the beneficial effects of the present invention are as follows.

[0058] Convenient and efficient, the gun body is easy to carry and operate, and can quickly detect cable lines on site, greatly improving detection efficiency, and can use protective devices to deal with impurities on the detector receiving surface;

[0059] Accurate positioning, through X-ray flaw detection technology, can clearly display the defect location and shape inside the copper nose crimping structure, realizing accurate detection;

[0060] Non-destructive, the detection process does not require the removal of cables, will not cause any damage to the cable line, and ensures the normal operation of the line;

[0061] Real-time display: the test results are displayed on the display screen in real time, and the operator can immediately obtain the test information and take corresponding measures in time;

[0062] High protection: the receiving surface of the detector is shielded when not in operation to avoid being damaged.

[0063] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, ordinary technicians in the field should understand that the specific implementation methods of the present invention can still be modified or replaced by equivalents. Any modification or equivalent replacement that does not depart from the spirit and scope of the present invention should be covered by the scope of protection of the claims of the present invention.

Claims

1. A handheld X-ray flaw detection gun, characterized in that, Comprising: A gun body (1), an X-ray emitting device, a detector (19), a display screen (2), a power supply module, and a control module; The X-ray emitting device, the display screen (2), the power supply module, and the control module are all connected to the gun body (1). The detector (19), the X-ray emitting device, the display screen (2), and the power supply module are all electrically connected to the control module. The X-ray emitting device is used to emit X-ray rays to the cable line to be inspected for flaws. The detector (19) is used to receive the X-ray rays and convert them into electrical signals. A protection device is provided on the detector (19) for processing impurities on the receiving surface of the detector (19). The protection device includes a protection box (12), a moving part (13), a liquid spraying part (14), a processing part (15), a control part (16), a telescopic part (17), and a liquid sucking part (18). The protection box (12) is movably and guidingly connected to the detector (19). The protection box (12) is used to block the receiving surface of the detector (19). The processing part (15) is fixedly connected to the moving part (13). A guiding groove one (214) is dug beside the processing groove (213). The liquid sucking part (18) is movably and guidingly arranged inside the guiding groove one (214). The telescopic part (17) is connected to the moving part (13) through the control part (16). A temporary storage bin (216) is dug at one end of the protection box (12) away from the processing groove (213). The liquid spraying part (14) communicates with the temporary storage bin (216).

2. The handheld X-ray flaw detection gun according to claim 1, wherein: A moving chamber one (212) is dug inside the protection box (12). The moving part (13) is inside the moving chamber one (212). The processing part (15) and the control part (16) are both inside the processing groove (213). A linkage chamber (215) is dug beside the processing groove (213). The telescopic part (17) is inside the linkage chamber (215).

3. The handheld X-ray flaw detection gun according to claim 1, wherein: The moving part (13) includes a motor one (312), a screw rod (313), a moving table one (314), a retaining piece (315), a connecting strip one (316), and a distance sensor (317). The motor one (312) is beside the moving chamber one (212). The screw rod (313) is drivingly connected to the motor one (312). The moving table one (314) is inside the moving chamber one (212) and is movably and guidingly connected to the moving chamber one (212). The screw rod (313) passes through the moving table one (314) and is threadedly connected to the moving table one (314). The retaining piece (315) is arranged beside the moving table one (314) through the connecting strip one (316). A pair of distance sensors (317) are arranged inside the moving chamber one (212). The pair of distance sensors (317) are at both ends of the screw rod (313). The distance sensor (317) and the motor one (312) are both electrically connected to the control module.

4. The handheld X-ray flaw detection gun according to claim 1, wherein: The liquid spraying part (14) includes a liquid spraying head (412), a conveying channel (413), a second moving table (414), a ratchet rod (415), a first ratchet disc (416), a first rotating rod (417), a winding roller (418), a sealing plug (419) and a rope (410). A plurality of liquid spraying heads (412) are arranged on the conveying channel (413). The conveying channel (413) is arranged in the treatment trench (213). One end of the conveying channel (413) is connected to the temporary storage bin (216). A second guiding trench (421) is dug above the first moving bin (212). The ratchet rod (415) is guidingly and movably connected to the second guiding trench (421). The second moving table (414) is located inside the first moving bin (212). The second moving table (414) is connected to the ratchet rod (415). A placing bin (422) is dug beside the second guiding trench (421). The first ratchet disc (416) is rotatably arranged inside the placing bin (422). The first ratchet disc (416) cooperates with the ratchet rod (415). The first rotating rod (417) is connected to the first ratchet disc (416). The first rotating rod (417) extends into the temporary storage bin (216) and is connected to the winding roller (418). The sealing plug (419) is located at the connection point between the temporary storage bin (216) and the conveying channel (413). The winding roller (418) is connected to the sealing plug (419) by means of the rope (410).

5. The handheld X-ray flaw detection gun according to claim 1, wherein: The treatment part (15) includes a treatment seat (512), a synchronous strip (513), a restraint table (514), a treatment member (515), a moving piece (516), a first spiral steel (517) and a moving strip (518). The treatment seat (512) is arranged inside the treatment trench (213). The first moving bin (212) communicates with the treatment trench (213) through an opening. The synchronous strip (513) passes through the opening and is guidingly and movably connected to the opening. Both ends of the synchronous strip (513) are respectively connected to the treatment seat (512) and the first moving table (314). The restraint table (514) is located inside the treatment seat (512). A second moving bin (519) is dug inside the restraint table (514). The moving piece (516) is guidingly and movably connected to the second moving bin (519). The moving piece (516) is connected to the inner wall of the second moving bin (519) by means of the first spiral steel (517). The moving strip (518) is connected to the moving piece (516). The moving strip (518) passes through the restraint table (514) and is connected to the treatment seat (512). The restraint table (514) is connected to the treatment member (515).

6. The handheld X-ray flaw detection gun according to claim 1, wherein: The control unit (16) includes a camera (612), a CPU (613), an iron block (614), an electro-controlled magnetic device (615), a second spiral steel bar (616), a second connecting bar (617), an extrusion sheet (618), a third moving platform (619), and a positioning sheet (610). A plurality of cameras (612) are arranged in the processing groove (213). The CPU (613) is disposed inside the linkage bin (215). The processing groove (213) communicates with the linkage bin (215) through a trench (622). The second connecting bar (617) passes through the trench (622) and is in guiding and movable connection with the trench (622). The second connecting bar (617) extends into the linkage bin (215) and is connected to the third moving platform (619). The second connecting bar (617) extends into the processing groove (213) and is connected to the extrusion sheet (618). The iron block (614) is located on the surface of the third moving platform (619) on the side close to the electro-controlled magnetic device (�15). The electro-controlled magnetic device (615) is located inside the linkage bin (215). The positioning sheet (610) is disposed on the surface of the second connecting bar (617). The second spiral steel bar (616) is disposed on the surface of the second connecting bar (617). The positioning sheet (610) is connected to the inner wall of the third guiding groove (623) by means of the second spiral steel bar (616).

7. A hand-held X-ray flaw detection gun according to claim 6, wherein: The control unit (16) further includes a protrusion (621). The protrusion (621) is disposed at the lower end of the third moving platform (619). A third guiding groove (623) is dug around the trench (622). The positioning sheet (610) is disposed inside the third guiding groove (623).

8. A hand-held X-ray flaw detection gun according to claim 7, wherein: The telescopic part (17) includes: a frustum (712), a first pulley (713), a second pulley (714), a synchronous belt (715), a second rotating rod (716), a first pulley (717), and a second pulley (718). The frustum (712) and the second pulley (714) are both rotatably connected to the protective box (12) inside the linkage bin (215). A fourth guiding groove (719) is dug on the surface of the frustum (712). The protrusion (621) is in guiding and movable connection with the fourth guiding groove (719). The first pulley (713) is connected to the frustum (712). A synchronous belt (715) is disposed between the first pulley (713) and the second pulley (714). The two ends of the second rotating rod (716) are respectively connected to the second pulley (714) and the first pulley (717). The second rotating rod (716) and the second pulley (718) are both rotatably connected to the protective box (12). The second pulley (718) and the first pulley (717) are both located inside the processing groove (213). The second pulley (718) and the first pulley (717) are both in rolling connection with the protective box (12) to drive the detector (19) to move relative to the protective box (12).

9. A hand-held X-ray flaw detection gun according to claim 1, wherein: The liquid suction part (18) includes: a mounting base (812), a liquid suction block (813), a third connecting strip (814), a second motor (815) and a disc (816). The mounting base (812) is movably connected to the first guiding groove (214) in a guiding manner. The liquid suction block (813) is located on the side of the mounting base (812) close to the detector (19). The two ends of the third connecting strip (814) are respectively connected to the mounting base (812) and the disc (816). The third connecting strip (814) is rotatably connected to one end of the disc (816). The second motor (815) is located inside the first guiding groove (214). The disc (816) is drivingly connected to the second motor (815).

10. A method for X-ray flaw detection, based on a handheld X-ray flaw detection gun according to any one of claims 1-9, characterized in that, It includes the following steps: Carry the handheld X-ray flaw detection gun to the side of the cable line to be flaw detected, extend the receiving surface of the detector (19), the X-ray emitting device emits X-ray rays to the cable line to be flaw detected, and the detector (19) receives the X-ray rays and converts them into electrical signals; After the flaw detection is completed, retract the detector (19); Obtain the graphic data of the receiving surface of the detector (19), compare the graphic data with the preset reference image data to obtain a cleanliness coefficient, and determine whether the receiving surface of the detector (19) conforms to the standard. If the cleanliness coefficient of the receiving surface of the detector (19) is greater than the set value, end the work; if the cleanliness coefficient of the receiving surface of the detector (19) is less than or equal to the set value, inject the treatment liquid to treat the impurities on the receiving surface of the detector (19), and the treatment liquid is sprayed onto the receiving surface of the detector (19) by the liquid spraying head (412); Push the treatment liquid and impurities to the side of the detector (19), and the detector (19) expands and contracts intermittently for the staff to judge whether the treatment is completed; Stop working after the treatment is completed.

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