Nondestructive testing device for cable flaw detection

Abstract

The invention discloses a nondestructive testing device for cable flaw detection, which belongs to the technical field of cable detection and comprises an upper mounting block and a lower mounting block. A connecting assembly is arranged on the upper mounting block, and the upper mounting block is connected with the lower mounting block through the connecting assembly. According to the scheme, bristles are arranged, an arc-shaped plate is driven to move in the moving process of an upper mounting block, the bristles can be driven to clean stains on the surface of a cable in the moving process of the arc-shaped plate, a rotating rod is driven to rotate through a second belt in the rotating process of a motor, and then a first bevel gear is driven to rotate in the rotating process of the rotating rod; a first bevel gear is driven to rotate, then a second bevel gear is driven to rotate in the rotation process of the first bevel gear, an arc-shaped plate is driven to rotate in the rotation process of the second bevel gear, and bristles can be driven to rotate in the rotation process of the arc-shaped plate to clean stains on the surface of the cable, so that the stains on the surface of the cable are prevented from influencing the detection accuracy; and the effect of improving the detection accuracy is achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of cable detection, and more particularly to a nondestructive detection device for cable flaw detection. Background Art

[0002] With the rapid development of industries such as electricity and communications, cables, as important transmission media, are critical to the operation of the entire system due to their safety and stability. However, cables may be affected by various factors during use, such as aging, wear, external force damage, etc., which may lead to degradation of cable performance or failure, or even cause fires and serious safety accidents. In order to detect potential defects, prevent short circuits, circuit breaks and other failures, and avoid safety accidents such as fires and electric shocks, it is usually necessary to conduct regular inspections of cables.

[0003] Existing cable detection devices mostly use handheld and fixed devices, but handheld devices require manual operation to detect cables point by point, which is not only labor-intensive but also inefficient. Although fixed devices can automatically detect, they can usually only detect cables in fixed positions and cannot adapt to the complex layout and changing environment of cables.

[0004] In view of the above problems, some solutions are also provided in the prior art. For example, the Chinese invention patent with the announcement number CN118624861B discloses a cable nondestructive testing device. The device sets a split splicing structure, and then uses a transmission seat to drive a plurality of first and second peristaltic columns to work, so that the device can walk autonomously on the cable surface, automatically walk along the cable surface and detect the damage of the cable surface and the inside, so that the detection box can perform a balanced motion scan on the cable surface, thereby improving the detection efficiency and accuracy. Although the prior art can improve the accuracy to a certain extent, the cable is generally exposed to the outside world for a long time, and the cable will generate static electricity due to friction in the air, which will cause more stains to adhere to the cable surface. If the stains on the cable surface cannot be cleaned before the flaw detection, the stains on the cable surface will interfere with the signal transmission of the flaw detector, reduce the image clarity and accuracy, and seriously affect the flaw detection effect. Summary of the invention

[0005] In view of the problems existing in the prior art, the object of the present invention is to provide a nondestructive testing device for cable flaw detection, which can achieve the purpose of improving the detection accuracy.

[0006] To solve the above problems, the present invention adopts the following technical solutions.

[0007] A nondestructive testing device for cable flaw detection comprises an upper mounting block and a lower mounting block; The upper mounting block is provided with a connecting assembly, and the upper mounting block is connected to the lower mounting block through the connecting assembly, a detector is fixedly mounted on the lower mounting block, the upper mounting block is provided with a walking assembly, and the upper mounting block walks on the cable through the walking assembly, and the upper mounting block is provided with a cleaning assembly; The cleaning component includes a first arc-shaped groove opened on the upper mounting block, a second arc-shaped groove opened on the lower mounting block, and the first arc-shaped groove and the second arc-shaped groove are connected to each other, and arc-shaped plates are slidably installed in the first arc-shaped groove and the second arc-shaped groove, and bristles are arranged on the arc-shaped plates.

[0008] Furthermore, the walking assembly includes a motor mounted on an upper mounting block, a first transmission wheel is rotatably mounted on the upper mounting block, a second transmission wheel cooperating with the first transmission wheel is provided on the lower mounting block, and a first belt is installed between the first transmission wheel and the output end of the motor.

[0009] Furthermore, a first bevel gear is fixedly mounted on the arc plate, a rotating rod is rotatably mounted on the upper mounting block, a second belt is installed between the rotating rod and the motor output end, and a second bevel gear meshing with the first bevel gear is fixedly mounted on the rotating rod.

[0010] Furthermore, a cleaning rod is rotatably mounted on the side wall of the upper mounting block, a combing rod is evenly and fixedly mounted on the cleaning rod, and a linkage assembly cooperating with the combing rod is provided on the arc plate.

[0011] Furthermore, the linkage assembly includes a slide groove evenly opened on the arc plate, a mounting plate is slidably installed in the slide groove, a first spring is jointly installed between the mounting plate and the slide groove, a linkage plate is installed at one end of the mounting plate away from the first spring, and the bristles are evenly fixedly installed on the linkage plate, a first magnet is fixedly installed on the mounting plate, a second magnet that repel each other with the first magnet is fixedly installed on the upper mounting block, and an air blowing assembly that cooperates with the bristles is provided on the slide groove.

[0012] Furthermore, the blowing assembly includes an air inlet valve inserted on the slide slot and connected to the outside at the input end, a cavity is opened on the arc plate, air holes are evenly opened on the cavity, and an exhaust valve is inserted on the slide slot and connected to the cavity at the output end.

[0013] Furthermore, the connecting assembly includes a fixing rod fixedly mounted on the upper bottom wall of the upper mounting block, a vertical groove cooperating with the fixing rod is provided on the lower mounting block, a horizontal rod extending into the vertical groove is horizontally slidably mounted on the lower mounting block, a second spring is commonly installed between the horizontal rod and the lower mounting block, and one end of the horizontal rod close to the fixing rod is an inclined surface, and a fixing groove cooperating with the horizontal rod is provided on the fixing rod.

[0014] Furthermore, a mounting groove is provided on the lower mounting block, a spring telescopic rod is vertically installed in the mounting groove, a mounting frame that slides with the mounting groove is fixedly installed on the output end of the spring telescopic rod, and the second transmission wheel is rotatably mounted on the mounting frame.

[0015] Compared with the prior art, the present invention has the following beneficial effects: (1) This scheme arranges bristles, and the upper mounting block drives the arc plate to move during its movement, and the arc plate can drive the bristles to clean the stains on the cable surface during its movement, and the second belt drives the rotating rod to rotate during the rotation of the motor, and then drives the first bevel gear to rotate during the rotation of the rotating rod, and then drives the second bevel gear to rotate during the rotation of the first bevel gear, and drives the arc plate to rotate during the rotation of the second bevel gear, and then drives the bristles to rotate and clean the stains on the cable surface during the rotation of the arc plate, thereby preventing the stains on the cable surface from affecting the detection accuracy, thereby improving the detection accuracy; (2) In this scheme, the first magnet and the second magnet cooperate with each other. In the process of the arc plate driving the bristles to rotate, the bristles gradually contact the combing rod and hit the combing rod. Then, under the action of the bristles, the combing rod can comb the bristles. In the process of the arc plate rotating, the mounting plate is driven to rotate. When the mounting plate rotates to the top of the cleaning rod, the repulsive force between the first magnet and the second magnet reaches the maximum. Then, under the action of the repulsive force, the first magnet drives the first spring to be stretched through the mounting plate, and in the process of the mounting plate moving, the bristles are driven to move through the linkage plate. At this time, the combing rod can further improve the combing effect of the bristles, thereby effectively avoiding the influence of the messy bristles on the cleaning effect of the cable, and further improving the accuracy of detection. (3) This scheme opens a cavity, and then when the first spring drives the mounting plate to reset, the gas in the slide groove is squeezed and flows into the cavity through the exhaust valve. Then the air flow passes through the air holes on the cavity and blows toward the contact point between the bristles and the cable, thereby improving the cleaning effect of the bristles. By making the side wall of the air hole at a 30-degree angle with the horizontal plane, the air flow can move to the outside of the linkage plate, and during the flow of the air flow, the dust that is out of contact with the bristles can be moved toward the linkage plate, thereby further improving the cleaning effect of the bristles on the cable, thereby improving the detection accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of the present invention; Figure 2 It is a combined diagram of the upper mounting block, the lower mounting block and the fixing rod of the present invention; Figure 3 It is a combined diagram of the motor, the first transmission wheel and the rotating rod of the present invention; Figure 4It is a combined diagram of the first bevel gear, the arc plate and the linkage plate of the present invention; Figure 5 It is a cross-sectional view of the arc plate, the mounting plate and the linkage plate of the present invention; Figure 6 It is a combined diagram of the fixed rod and the horizontal rod of the present invention; Figure 7 It is a combined diagram of the second transmission wheel and the spring telescopic rod of the present invention; Figure 8 This is a combination diagram of the upper mounting block, the lower mounting block and the detector of the present invention.

[0017] Description of the numbers in the figure: 1. Upper mounting block; 2. Lower mounting block; 3. Detector; 4. Cleaning assembly; 401. first arc-shaped groove; 402. second arc-shaped groove; 403. arc-shaped plate; 404. bristles; 5. Traveling assembly; 501. Motor; 502. First transmission wheel; 503. Second transmission wheel; 504. First belt; 505. First bevel gear; 506. Second belt; 507. Second bevel gear; 508. Rotating rod; 601, cleaning rod; 602, combing rod; 603, linkage assembly; 6031, mounting plate; 6032, first spring; 6033, linkage plate; 6034, first magnet; 6035, second magnet; 7. Blowing assembly; 701. Inlet valve; 702. Cavity; 703. Air hole; 704. Exhaust valve; 8. Connecting assembly; 801. Fixing rod; 802. Horizontal rod; 803. Second spring; 804. Fixing groove; 901. Spring telescopic rod; 902. Mounting frame. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention; it is obvious that the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments, and all other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making creative work are within the scope of protection of the present invention.

[0019] See also Figures 1 to 8 , a nondestructive testing device for cable flaw detection, comprising an upper mounting block 1 and a lower mounting block 2; The upper mounting block 1 is provided with a connecting component 8, and the upper mounting block 1 is connected to the lower mounting block 2 through the connecting component 8, a detector 3 is fixedly installed on the lower mounting block 2, the upper mounting block 1 is provided with a walking component 5, and the upper mounting block 1 walks on the cable through the walking component 5, and the upper mounting block 1 is provided with a cleaning component 4; The cleaning assembly 4 includes a first arc groove 401 opened on the upper mounting block 1, a second arc groove 402 opened on the lower mounting block 2, and the first arc groove 401 and the second arc groove 402 are connected to each other, and an arc plate 403 is slidably installed in the first arc groove 401 and the second arc groove 402, and bristles 404 are provided on the arc plate 403.

[0020] The walking assembly 5 includes a motor 501 mounted on the upper mounting block 1, on which a first transmission wheel 502 is rotatably mounted, and a second transmission wheel 503 cooperating with the first transmission wheel 502 is provided on the lower mounting block 2, and a first belt 504 is installed between the first transmission wheel 502 and the output end of the motor 501.

[0021] A first bevel gear 505 is fixedly mounted on the arc plate 403 , a rotating rod 508 is rotatably mounted on the upper mounting block 1 , a second belt 506 is installed between the rotating rod 508 and the output end of the motor 501 , and a second bevel gear 507 meshing with the first bevel gear 505 is fixedly mounted on the rotating rod 508 .

[0022] When in use, the cable is first clamped between the first transmission wheel 502 and the second transmission wheel 503, and then the upper mounting block 1 and the lower mounting block 2 are fixed by the connecting component 8. At this time, the cable is located between the first transmission wheel 502 and the second transmission wheel 503, and then the motor 501 drives the first transmission wheel 502 to rotate through the first belt 504. During the rotation of the first transmission wheel 502, the detection device can be driven to walk on the cable. At this time, the detector 3 on the lower mounting block 2 can perform flaw detection on the cable, thereby achieving the purpose of non-destructive detection. During the movement of the upper mounting block 1, the arc plate 403 is driven to move, and during the movement of the arc plate 403, the brush 404 can be driven to clean the stains on the surface of the cable, thereby avoiding the stains on the surface of the cable affecting the accuracy of the detection, thereby improving the detection accuracy. At the same time, by cleaning the surface of the cable, it is also possible to avoid the solid particles on the surface of the cable from moving and wearing the cable during the rolling of the first transmission wheel 502 and the second transmission wheel 503 on the cable surface, that is, while improving the accuracy of cable detection, the cable can also be protected.

[0023] After the upper mounting block 1 is connected to the lower mounting block 2, the first arc groove 401 and the second arc groove 402 are connected to each other and form an annular groove, and at this time, the arc plate 403 on the upper mounting block 1 and the lower mounting block 2 forms an annular plate, and the arc plate 403 can rotate in the first arc groove 401 and the second arc groove 402, and the second belt 506 drives the rotating rod 508 to rotate during the rotation of the motor 501, and then drives the first bevel gear 505 to rotate during the rotation of the rotating rod 508, and then drives the second bevel gear 507 to rotate during the rotation of the first bevel gear 505, and drives the arc plate 403 to rotate during the rotation of the second bevel gear 507, and then drives the bristles 404 to rotate during the rotation of the arc plate 403, thereby improving the cleaning effect of stains on the cable surface and further improving the accuracy of detection.

[0024] like Figure 1 , Figure 2 , Figure 4 , Figure 5 As shown, a cleaning rod 601 is rotatably mounted on the side wall of the upper mounting block 1 , a combing rod 602 is evenly fixedly mounted on the cleaning rod 601 , and a linkage assembly 603 cooperating with the combing rod 602 is provided on the arc plate 403 .

[0025] The linkage assembly 603 includes a slide groove evenly opened on the arc plate 403, a mounting plate 6031 is slidably installed in the slide groove, a first spring 6032 is installed between the mounting plate 6031 and the slide groove, a linkage plate 6033 is installed at one end of the mounting plate 6031 away from the first spring 6032, and the bristles 404 are evenly fixed on the linkage plate 6033, a first magnet 6034 is fixedly installed on the mounting plate 6031, a second magnet 6035 which repel each other with the first magnet 6034 is fixedly installed on the upper mounting block 1, and a blowing assembly 7 which cooperates with the bristles 404 is provided on the slide groove.

[0026] The blowing assembly 7 includes an inlet valve 701 inserted on the input end of the slide and connected to the outside, a cavity 702 is opened on the arc plate 403, air holes 703 are evenly opened on the cavity 702, and an exhaust valve 704 is inserted on the slide and connected to the cavity 702 at the output end.

[0027] By adopting the above technical solution, in the process of the arc plate 403 driving the bristles 404 to rotate, the bristles 404 gradually come into contact with the combing rod 602 and hit the combing rod 602, and then the combing rod 602 can comb the bristles 404 under the action of the bristles 404, thereby effectively improving the cleaning effect of the bristles 404, and in the process of the arc plate 403 rotating, the mounting plate 6031 is driven to rotate, and in the process of the mounting plate 6031 rotating, the first magnet 6034 is driven to gradually approach the second magnet 6035, and when the mounting plate 6031 rotates to above the cleaning rod 601 , the distance between the first magnet 6034 and the second magnet 6035 is closest, at this time the repulsive force between the first magnet 6034 and the second magnet 6035 reaches the maximum, and then under the action of the repulsive force, the first magnet 6034 drives the first spring 6032 to be stretched through the mounting plate 6031, and in the process of the movement of the mounting plate 6031, the bristles 404 are driven to move through the linkage plate 6033, at this time the combing rod 602 can further improve the combing effect of the bristles 404, thereby effectively avoiding the messy bristles 404 affecting the cleaning effect of the cable, and further improving the accuracy of detection.

[0028] After the first magnet 6034 and the second magnet 6035 move away from each other, the first spring 6032 contracts and drives the mounting plate 6031 to return to its original position. During the process of the mounting plate 6031 returning to its original position, the interlocking plate 6033 is driven to return to its original position, thereby preparing for the next operation.

[0029] In the process of the bristles 404 passing through the combing rod 602, the combing rod 602 can also clean the stains on the bristles 404. At the same time, the pressure in the slide groove decreases in the process of the first magnet 6034 driving the mounting plate 6031 to move. Then, under the action of the pressure, the slide groove inhales air from the outside through the air inlet valve 701. Then, in the process of the first spring 6032 driving the mounting plate 6031 to reset, the gas in the slide groove is squeezed and flows into the cavity 702 through the exhaust valve 704. Then, the air flow blows toward the bristles 404 through the air hole 703 on the cavity 702, thereby improving the cleaning effect of the bristles 404. By making the side wall of the air hole 703 at thirty degrees to the horizontal plane, the air flow can be moved to the outside of the linkage plate 6033, and in the process of the air flow, the dust that is out of contact with the bristles 404 can be moved toward the linkage plate 6033, thereby further improving the cleaning effect of the bristles 404 on the cable, thereby improving the detection accuracy.

[0030] like Figure 6As shown, the connecting assembly 8 includes a fixing rod 801 fixedly mounted on the upper bottom wall of the upper mounting block 1, a vertical groove cooperating with the fixing rod 801 is opened on the lower mounting block 2, a horizontal rod 802 extending into the vertical groove is horizontally slidably installed on the lower mounting block 2, and a second spring 803 is installed between the horizontal rod 802 and the lower mounting block 2, and the end of the horizontal rod 802 close to the fixing rod 801 is an inclined surface, and a fixing groove 804 cooperating with the horizontal rod 802 is opened on the fixing rod 801.

[0031] By adopting the above technical solution, after the cable is located between the first transmission wheel 502 and the second transmission wheel 503, the upper mounting block 1 drives the fixing rod 801 to be inserted into the vertical groove, and in the process of the fixing rod 801 being inserted into the vertical groove, it gradually contacts the inclined surface of the horizontal rod 802 and applies a thrust to the inclined surface of the horizontal rod 802, and then the horizontal rod 802 moves and stretches the second spring 803 under the action of the thrust, and when the horizontal rod 802 contacts the fixing groove 804, the second spring 803 contracts and drives the horizontal rod 802 to be inserted into the fixing groove 804, and when the user needs to separate the upper mounting block 1 from the lower mounting block 2, the user can first pull the horizontal rod 802 and separate the horizontal rod 802 from the fixing groove 804 again, and at this time the user can separate the upper mounting block 1 from the lower mounting block 2, which facilitates the connection between the upper mounting block 1 and the lower mounting block 2.

[0032] like Figure 7 As shown, a mounting groove is provided on the lower mounting block 2, a spring telescopic rod 901 is vertically installed in the mounting groove, a mounting frame 902 that slides with the mounting groove is fixedly installed at the output end of the spring telescopic rod 901, and the second transmission wheel 503 is rotatably installed on the mounting frame 902.

[0033] By adopting the above technical solution, when the upper mounting block 1 drives the fixing rod 801 to be inserted into the vertical groove, the upper mounting block 1 applies pressure to the second transmission wheel 503 through the first transmission wheel 502 and the cable, and then under the action of the pressure, the second transmission wheel 503 compresses the spring telescopic rod 901 through the mounting frame 902. Since the spring telescopic rod 901 is extensible, the detection device can detect cables of different sizes, thereby improving the practicality of the detection device.

[0034] Instructions for use: When in use, first clamp the cable between the first transmission wheel 502 and the second transmission wheel 503, then fix the upper mounting block 1 and the lower mounting block 2 through the connecting component 8, at this time the cable is located between the first transmission wheel 502 and the second transmission wheel 503, then the motor 501 drives the first transmission wheel 502 to rotate through the first belt 504, and during the rotation of the first transmission wheel 502, the detection device can be driven to move on the cable, at this time the detector 3 on the lower mounting block 2 can perform flaw detection on the cable, achieving the purpose of non-destructive testing, the upper mounting block 1 drives the arc plate 403 to move during the movement, and during the movement of the arc plate 403, the bristles 404 can be driven to remove stains on the surface of the cable After the upper mounting block 1 is connected to the lower mounting block 2, the first arc groove 401 and the second arc groove 402 are connected to each other and form an annular groove, and at this time, the arc plate 403 on the upper mounting block 1 and the lower mounting block 2 forms an annular plate, and the arc plate 403 can rotate in the first arc groove 401 and the second arc groove 402, and the rotating rod 508 is driven to rotate by the second belt 506 during the rotation of the motor 501, and then the first bevel gear 505 is driven to rotate during the rotation of the rotating rod 508, and then the second bevel gear 507 is driven to rotate during the rotation of the first bevel gear 505, and the arc plate 403 is driven to rotate during the rotation of the second bevel gear 507, and then the arc plate 403 is driven to rotate during the rotation of the second bevel gear 507, and then the arc plate 403 is driven to rotate. The rotation process can drive the bristles 404 to rotate; in the process of the arc plate 403 driving the bristles 404 to rotate, the bristles 404 gradually contact with the combing rod 602 and hit the combing rod 602, and then the combing rod 602 can comb the bristles 404 under the action of the bristles 404; when the mounting plate 6031 rotates to above the cleaning rod 601, the distance between the first magnet 6034 and the second magnet 6035 reaches the shortest, and at this time, the repulsive force between the first magnet 6034 and the second magnet 6035 reaches the maximum, and then under the action of the repulsive force, the first magnet 6034 drives the first spring 6032 to be stretched through the mounting plate 6031, and in the process of the mounting plate 6031 moving, the linkage plate 6033 drives The dynamic bristles 404 move, and at this time the combing rod 602 can further improve the combing effect of the bristles 404; in the process of the bristles 404 passing through the combing rod 602, the combing rod 602 can also clean the stains on the bristles 404. At the same time, the pressure in the slide groove decreases during the movement of the mounting plate 6031 driven by the first magnet 6034, and then the slide groove inhales air from the outside through the air inlet valve 701 under the action of the pressure, and then the first spring 6032 drives the mounting plate 6031 to reset, the gas in the slide groove is squeezed and flows into the cavity 702 through the exhaust valve 704, and then the air flow blows toward the bristles 404 through the air holes 703 on the cavity 702, thereby improving the cleaning effect of the bristles 404.

[0035] The above is only a preferred specific implementation of the present invention; however, the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solution and its improved conception within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A non-destructive testing device for cable flaw detection, comprising an upper mounting block (1) and a lower mounting block (2); Features: The upper mounting block (1) is provided with a connecting assembly (8), and the upper mounting block (1) is connected to the lower mounting block (2) via the connecting assembly (8); a detector (3) is fixedly mounted on the lower mounting block (2); the upper mounting block (1) is provided with a walking assembly (5), and the upper mounting block (1) walks on the cable via the walking assembly (5); and the upper mounting block (1) is provided with a cleaning assembly (4); The cleaning assembly (4) comprises a first arc-shaped groove (401) formed on the upper mounting block (1), a second arc-shaped groove (402) formed on the lower mounting block (2), the first arc-shaped groove (401) and the second arc-shaped groove (402) being connected to each other, an arc-shaped plate (403) being slidably mounted in each of the first arc-shaped groove (401) and the second arc-shaped groove (402), and bristles (404) being arranged on the arc-shaped plate (403).

2. A nondestructive testing device for cable flaw detection according to claim 1, characterized in that: The walking assembly (5) comprises a motor (501) mounted on an upper mounting block (1); a first transmission wheel (502) is rotatably mounted on the upper mounting block (1); a second transmission wheel (503) cooperating with the first transmission wheel (502) is provided on the lower mounting block (2); and a first belt (504) is installed between the first transmission wheel (502) and an output end of the motor (501).

3. A nondestructive testing device for cable flaw detection according to claim 2, characterized in that: A first bevel gear (505) is fixedly mounted on the arc plate (403), a rotating rod (508) is rotatably mounted on the upper mounting block (1), a second belt (506) is installed between the rotating rod (508) and an output end of the motor (501), and a second bevel gear (507) meshing with the first bevel gear (505) is fixedly mounted on the rotating rod (508).

4. A nondestructive testing device for cable flaw detection according to claim 3, characterized in that: A cleaning rod (601) is rotatably mounted on the side wall of the upper mounting block (1), a combing rod (602) is evenly fixedly mounted on the cleaning rod (601), and a linkage assembly (603) cooperating with the combing rod (602) is provided on the arc plate (403).

5. A nondestructive testing device for cable flaw detection according to claim 4, characterized in that: The linkage assembly (603) comprises a slide groove evenly arranged on the arc plate (403), a mounting plate (6031) being slidably mounted in the slide groove, a first spring (6032) being mounted between the mounting plate (6031) and the slide groove, a linkage plate (6033) being mounted on one end of the mounting plate (6031) away from the first spring (6032), and the bristles (404) being evenly fixedly mounted on the linkage plate (6033), a first magnet (6034) being fixedly mounted on the mounting plate (6031), a second magnet (6035) being fixedly mounted on the upper mounting block (1) and mutually repelling the first magnet (6034), and an air blowing assembly (7) cooperating with the bristles (404) being provided on the slide groove.

6. A nondestructive testing device for cable flaw detection according to claim 5, characterized in that: The blowing assembly (7) comprises an air inlet valve (701) inserted on the input end of the slide groove and connected to the outside, a cavity (702) is provided on the arc plate (403), air holes (703) are evenly provided on the cavity (702), and an air exhaust valve (704) is inserted on the slide groove and connected to the cavity (702) at the output end.

7. A nondestructive testing device for cable flaw detection according to claim 6, characterized in that: The connecting assembly (8) comprises a fixing rod (801) fixedly mounted on the upper bottom wall of the upper mounting block (1); a vertical groove cooperating with the fixing rod (801) is provided on the lower mounting block (2); a horizontal rod (802) extending into the vertical groove is horizontally slidably mounted on the lower mounting block (2); a second spring (803) is installed between the horizontal rod (802) and the lower mounting block (2); an end of the horizontal rod (802) close to the fixing rod (801) is an inclined surface; and a fixing groove (804) cooperating with the horizontal rod (802) is provided on the fixing rod (801).

8. A nondestructive testing device for cable flaw detection according to claim 7, characterized in that: The lower mounting block (2) is provided with a mounting groove, a spring telescopic rod (901) is vertically mounted in the mounting groove, a mounting frame (902) that is slidably matched with the mounting groove is fixedly mounted on the output end of the spring telescopic rod (901), and the second transmission wheel (503) is rotatably mounted on the mounting frame (902).

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