Cable detection equipment and method thereof

Abstract

The invention relates to the technical field of cable detection, and particularly discloses a cable detection device which comprises a detection box body, conductive liquid is arranged in the detection box body, a lifting frame slides in the detection box body, wire guide wheels used for limiting cables are arranged in the lifting frame and the detection box body, and the detection device further comprises a cable twisting mechanism, the cable twisting mechanism is arranged in the detection box body and comprises a fixed frame arranged in the detection box body, a sliding block is arranged in the fixed frame, a rotating rod is rotationally arranged in the sliding block, a twisting frame is arranged at the bottom of the rotating rod, a cable penetrates through the twisting frame, the twisting frame rotates to twist the cable, and conductive liquid conveniently enters the damaged cable. Through the cooperation of the above structures, the cable can be twisted, the opening of the damaged gap of the cable is facilitated, the conductive liquid can enter the damaged gap of the cable, and the detection efficiency can be improved.

Description

Technical Field

[0001] The present invention relates to the technical field of cable detection, and particularly to a cable detection device and method thereof. Background Art

[0002] A cable is a linear conductor made of conductive material, mainly used for power transmission or signal transmission. To ensure its safe operation, specific detection means are required to evaluate the integrity of the sheath and the insulation performance. The conventional detection method is to immerse the cable to be tested in an electrolyte solution and monitor the electrical property change of the solution under the energized state. If there is a crack in the outer sheath or the insulation layer fails, the current will leak to the solution through the defect. At this time, by detecting the conductivity of the liquid, it can be determined whether the cable protective layer is damaged and whether the insulation state meets the standard.

[0003] Using this detection method, there are certain limitations in the detection of minor damages. When the damage to the cable is small, it is difficult for the liquid to penetrate into the damaged area at a relatively fast speed, thus affecting the detection efficiency.

[0004] For example, in the "A Cable Detection Device" with the application publication number of "CN116540042A", through the setting of a pressurization box and a pressurization component, the detection water in the pressurization box can be pressurized, so that the detection water can quickly enter the defect position inside the cable, ensuring the accuracy of the cable insulation detection. At the same time, it can shorten the immersion time of the cable and improve the efficiency of the cable insulation detection. However, when pressurizing the conductive liquid, since the cable skin is flexible, there is a certain possibility that the flexible skin of the cable will be compressed during pressurization, enhancing the sealing effect at the damaged position of the cable, and thus it may be more difficult for the conductive liquid to enter the damaged notch of the cable. In order to obtain a higher detection accuracy, it is necessary to extend the soaking time, which affects the detection efficiency. And because the length of the cable immersed in water is relatively long, it is impossible to determine which section of the cable is damaged. When repairing the cable subsequently, the damaged position cannot be quickly found, thus affecting the efficiency of cable processing. Summary of the Invention

[0005] The purpose of the present invention is to provide a cable detection device and method thereof, which can twist the cable, facilitate the opening of the damaged notch of the cable, thereby facilitating the conductive liquid to enter the damaged notch of the cable, and thus facilitating the improvement of the detection efficiency, so as to solve the problems raised in the above background art.

[0006] To achieve the above purpose, the present invention provides the following technical solution: A cable detection device includes a detection box body, the inside of the detection box body is configured with a conductive liquid, a lifting frame slides inside the detection box body, and wire wheels for restricting the cable are configured inside both the lifting frame and the detection box body. It is characterized in that the detection device further includes:

[0007] The cable twisting mechanism is disposed inside the detection box body. The cable twisting mechanism includes a fixed frame disposed inside the detection box body. A sliding block is disposed inside the fixed frame. A rotating rod is rotated inside the sliding block. A twisting frame is disposed at the bottom of the rotating rod. The cable passes through the inside of the twisting frame. The twisting frame rotates to twist the cable, facilitating the entry of the conductive liquid into the damaged inside of the cable.

[0008] The driving assembly is disposed outside the fixed frame. The driving assembly is used to control the rotating rod to drive the twisting frame to rotate.

[0009] The lifting assembly is disposed inside the detection box body. The lifting assembly includes a lifting frame that linearly and arrayedly slides at the bottom of the lifting frame. The lifting frame moves upward to lift the cable so that the cable is higher than the liquid level, and the cable at the twisting frame is below the liquid level.

[0010] Preferably, the driving assembly includes:

[0011] A sliding frame is slidably connected to the outside of the lifting frame. The front end of the sliding frame is rotatably connected to the rotating rod. The rear end of the sliding frame is fixedly connected with a mounting plate.

[0012] There are two limiting bars. The two limiting bars are respectively fixedly connected to the front and rear ends of the top of the fixed frame. A limiting block is fixedly connected to the side of the two limiting bars close to each other. And the limiting blocks at the front and rear ends of the limiting bars are staggered.

[0013] A first rack is slidably connected to the top of the sliding block.

[0014] A first gear is fixedly connected to the outer wall top of the rotating rod. The first gear meshes with the first rack.

[0015] Preferably, the driving assembly further includes:

[0016] A motor is fixedly connected to the inner wall of the detection box body. The output shaft of the motor is fixedly connected with a screw rod. The outer wall of the screw rod is threadedly connected with the mounting plate.

[0017] Preferably, circular shafts are rotatably connected to both the front and rear ends of the first rack.

[0018] Preferably, the lifting assembly further includes:

[0019] An electric telescopic rod is fixedly connected to the outside of the fixed frame. The output shaft of the electric telescopic rod is fixedly connected with a fixing plate. The end of the fixing plate is fixedly connected with the lifting frame.

[0020] Preferably, the detection device further includes:

[0021] The flow component is arranged below the fixed frame. The flow component includes a connecting pipe fixedly inserted at the bottom of the sliding frame. Inside the connecting pipe, there is a circular ring frame connected. Inside the circular ring frame, there is a small shaft fixedly connected. On the outer wall of the small shaft, there are blades fixedly connected. At the bottom of the outer wall of the small shaft, it extends out from the bottom of the connecting pipe and is fixedly connected with a second gear;

[0022] The second rack is fixedly connected to the rear end of the lifting frame, and the second rack meshes with the second gear;

[0023] The connecting pipe is fixedly inserted between the twisting frame and the sliding frame.

[0024] Preferably, the inside of the sliding frame is hollow. When detecting, the bottom of the connecting pipe is below the liquid level, and the top of the connecting pipe is made of a section of hose material.

[0025] Preferably, the lifting component further includes:

[0026] A spring is fixedly connected between the lifting frame and the lifting support. On both sides of the lifting support, there are card slots. The middle part at the lower end of the lifting support is rod-shaped, reducing the wear on the cable;

[0027] A card frame is slidably connected inside the lifting frame. There are multiple card frames, which are respectively located between adjacent lifting supports and at the positions corresponding to the card slots. Inside the lifting frame, near the protruding position in the middle of the card frame, there is a small groove. A U-shaped elastic piece is fixedly connected between the inside of the small groove and the card frame. The top parts on both sides of the card frame and the inner top parts of the card slots are both inclined.

[0028] Preferably, a marking component is arranged at the top right of the twisting frame. The marking component is used to mark the damaged parts of the cable. The inside of the twisting frame is inclined. When the twisting frame rotates to twist the cable, it reduces the damage to the cable.

[0029] A cable detection method includes the following steps:

[0030] S1. Place the cable. The cable passes through the openings on both sides of the detection box body, and passes above the upper wire wheel and below the lower wire wheel, and passes through the twisting frame;

[0031] S2. Conduct power-on detection. Add conductive liquid to the inside of the detection box body, power on the cable, and use the device for detecting current to detect the current in the conductive liquid.

[0032] Compared with the prior art, the beneficial effects of the present invention are:

[0033] 1. Through the cooperation of the cable twisting mechanism and the driving component, the cable can be twisted, which is beneficial to the opening of the damaged notch of the cable, so that the conductive liquid can enter the damaged notch of the cable, thus being beneficial to improving the detection efficiency;

[0034] 2. By the action of the lifting component, segmented detection can be realized for different positions within the detection range, so as to more accurately find the leakage location, which is convenient for improving the efficiency of finding the leakage location subsequently. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings required for the description of the specific embodiments or the prior art. Obviously, the following drawings are some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0036] Figure 1 It is the overall structure view of the present invention;

[0037] Figure 2 It is the schematic half-sectional structure view of the present invention;

[0038] Figure 3 It is the schematic top view structure of the fixed frame of the present invention;

[0039] Figure 4 It is the schematic partial structure view of the rotating rod of the present invention;

[0040] Figure 5 For the present invention Figure 4 Enlarged view at A;

[0041] Figure 6 It is the schematic rear view structure of the lifting frame of the present invention;

[0042] Figure 7 It is the schematic rear cross-sectional structure view of the flowing component of the present invention;

[0043] Figure 8 It is the schematic half-sectional structure view of the lifting frame of the present invention;

[0044] Figure 9 It is the schematic partial structure view of the small shaft of the present invention;

[0045] Figure 10 It is the schematic side cross-sectional structure view of the sliding frame of the present invention;

[0046] Figure 11 It is the schematic cross-sectional structure view of the lifting frame of the present invention;

[0047] Figure 12 It is the schematic partial structure view of the card rack of the present invention.

[0048] Description of the reference numerals:

[0049] 1. Detection box; 2. Lifting frame; 3. Cable guide wheel; 4. Cable twisting mechanism; 41. Fixed frame; 42. Sliding block; 43. Rotating rod; 44. Twisting frame; 5. Driving assembly; 51. Sliding frame; 52. Mounting plate; 53. Limiting strip; 54. Limiting block; 55. First rack; 56. First gear; 57. Motor; 58. Screw; 59. Round shaft; 6. Lifting assembly; 61. Lifting bracket; 62. Electric telescopic rod; 63. Fixed plate; 64. Spring; 65. Card slot; 66. Card frame; 67. Small groove; 68. U-shaped elastic piece; 7. Flow assembly; 71. Connecting pipe; 72. Ring frame; 73. Blade; 74. Second gear; 75. Second rack; 76. Connecting pipe; 77. Small shaft; 8. Marking assembly. Detailed implementation mode

[0050] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present invention.

[0051] Embodiment 1: Please refer to Figures 1 to 9 , the present invention provides a technical solution: A cable detection device includes a detection box 1, the inside of the detection box 1 is configured with a conductive liquid, the inside of the detection box 1 is slidably connected with a lifting frame 2, and both the inside of the lifting frame 2 and the inside of the detection box 1 are configured with cable guide wheels 3 for restricting the cable. The cable guide wheel 3 includes a bracket and a wheel. During use, it passes through above the upper cable guide wheel 3 and passes through below the lower cable guide wheel 3, which is beneficial for the cable to be below the liquid level during detection. The detection device also includes a cable twisting mechanism 4 configured inside the detection box 1. The cable twisting mechanism 4 includes a fixed frame 41 fixed inside the detection box 1. A sliding block 42 slides inside the fixed frame 41. A rotating rod 43 rotates inside the sliding block 42. The bottom of the rotating rod 43 is fixed with a twisting frame 44. The cable passes through the inside of the twisting frame 44, and the twisting frame 44 rotates to twist the cable, facilitating the entry of the conductive liquid into the damaged interior of the cable. The detection device also includes a driving assembly 5 configured outside the fixed frame 41. The driving assembly 5 is used to control the rotating rod 43 to drive the twisting frame 44 to rotate. The detection device also includes a lifting assembly 6 configured inside the detection box 1. The lifting assembly 6 includes a lifting bracket 61 that linearly slides in an array at the bottom of the lifting frame 2. The lifting bracket 61 moves upward to lift the cable so that the cable is higher than the liquid level, and the cable at the position of the twisting frame 44 is below the liquid level.

[0052] The driving component 5 includes a sliding frame 51 slidably connected to the outside of the lifting frame 2. The front end of the sliding frame 51 is rotatably connected to the rotating rod 43. The rear end of the sliding frame 51 is fixedly connected with a mounting plate 52. The driving component 5 further includes limiting strips 53. There are two limiting strips 53, which are respectively fixedly connected to the front and rear ends of the top of the fixed frame 41. Limiting blocks 54 are fixedly connected to the sides of the two limiting strips 53 close to each other, and the limiting blocks 54 at the front and rear ends of the limiting strips 53 are arranged staggeredly. The limiting blocks 54 are inclined. The driving component 5 further includes a first rack 55 slidably connected to the top of the sliding block 42. The driving component 5 further includes a first gear 56 fixedly connected to the top outer wall of the rotating rod 43. The first gear 56 meshes with the first rack 55. The driving component 5 further includes a motor 57 fixedly connected to the inner wall of the detection box body 1. The output shaft of the motor 57 is fixedly connected with a screw rod 58. The outer wall of the screw rod 58 is threadedly connected with the mounting plate 52. Circular shafts 59 for reducing friction are rotatably connected to both the front and rear ends of the first rack 55. Both the sliding block 42 and the sliding frame 51 are rotatably connected to the rotating rod 43, and there is a gap between the sliding block 42 and the sliding frame 51.

[0053] By adopting the above technical solution, a box door is hinged to the top of the detection box body 1. During use, the box door is opened, and the cable passes through the openings on both sides of the detection box body 1. When passing through, the cable passes above the upper wire wheel 3 and below the lower wire wheel 3, and then passes through the twisting frame 44. Subsequently, a conductive liquid is added to the inside of the detection box body 1, and the conductive liquid can be water.

[0054] The cable moves from left to right. A winding frame for winding is arranged on the right side of the cable to wind the cable and provide a traction force to make the cable move from left to right.

[0055] A device for detecting current is installed inside the detection box body 1, and a streaming current meter can be used. It is a mature existing technology and will not be elaborated too much. When detecting, the left end of the cable is electrified. When there is a breakage, the current enters the conductive liquid, and the breakage can be detected through the device for detecting current.

[0056] In order to reduce the situation that the conductive liquid is difficult to enter the breakage notch of the cable, the cable twisting mechanism 4 is set in this scheme. By controlling the output shaft of the motor 57 to rotate reciprocally, the screw rod 58 can be rotated, so that the mounting plate 52 and the sliding frame 51 can be controlled to move reciprocally in the left - right direction.

[0057] When the sliding frame 51 moves left and right, the rotating rod 43 drives the sliding block 42 to move accordingly, so that the sliding block 42 moves left and right. At this time, a relative movement occurs between the sliding block 42 and the limiting strip 53 fixed on the fixed frame 41, causing a relative movement between the first rack 55 and the limiting block 54 on the limiting strip 53. During this process, under the limiting action of the limiting blocks 54 of the two-sided limiting strips 53, the first rack 55 can reciprocate in the front-back direction. Under the meshing action of the first gear 56 and the first rack 55, the first gear 56 can drive the rotating rod 43 to rotate, so that the rotating rod 43 drives the torsion frame 44 to reciprocate, thereby realizing the torsion of the cable inside the torsion frame 44 during detection, which is beneficial to the opening of the damaged notch of the cable, so that the conductive liquid can enter the damaged notch of the cable, thus facilitating the improvement of the detection efficiency.

[0058] At the same time, the situation where the conductive liquid cannot enter the damaged part can be reduced, thereby improving the detection accuracy.

[0059] It should be noted that the cable entering the conductive liquid is a detection interval. After one detection interval is completed, by winding the cable, the movement of the cable can be realized, so that the next detection interval can be immersed in the conductive liquid.

[0060] As the sliding block 42 reciprocates in the left-right direction, the torsion frame 44 twists the cable inside it. When the sliding block 42 moves, the cable in a detection interval can be twisted to improve the detection efficiency.

[0061] The lifting assembly 6 further includes an electric telescopic rod 62 fixedly connected to the outside of the fixed frame 41. The output shaft of the electric telescopic rod 62 is fixedly connected with a fixing plate 63, and the end of the fixing plate 63 is fixedly connected with the lifting frame 2.

[0062] By adopting the above technical solution, when a current is detected by the device for detecting current, it is known that there is a leakage phenomenon in this interval. At this time, the lifting assembly 6 is used to determine which specific section of this detection interval has the leakage phenomenon.

[0063] When detecting which section is leaking, the output shaft of the electric telescopic rod 62 contracts, so that the fixed plate 63 drives the lifting frame 2 and the lifting bracket 61 to move upward. With such a design, the lifting bracket 61 lifts the cable above the liquid level at this time, and the section of the cable inside the torsion frame 44 is above the liquid level under the limiting action of the torsion frame 44. At this time, the cable continues to be energized, and the current is continuously detected. By the output shaft of the motor 57 rotating reciprocally, the screw rod 58 can be rotated, so that the sliding frame 51, the rotating rod 43 and the sliding block 42 move left and right, making the torsion frame 44 located at different positions, so as to realize sectional detection of different positions within the detection range, and thus more accurately find the leaking part, which is convenient for improving the efficiency of finding the leaking position subsequently.

[0064] It should be noted that when the cable is lifted, the conductive liquid has already entered the damaged part of the cable. When the damaged position is above the liquid level, there may be a certain amount of moisture remaining on the surface of the cable. A small amount of insufficient water flow is difficult to form an effective path, resulting in a large resistance for conduction at this time and a small detected current. When the damaged position is below the liquid level, an effective path can be formed, the resistance is small, and the current is large. When the detected current is large, the damaged position is below the liquid level.

[0065] Embodiment 2: The technical solution of this embodiment is different from that of Embodiment 1 in that: as Figures 3 to 12 , the detection device further includes a flow component 7 disposed below the fixed frame 41. The flow component 7 includes a communicating pipe 71 fixedly inserted at the bottom of the sliding frame 51. A circular ring frame 72 is connected inside the communicating pipe 71. A small shaft 77 is fixedly connected to the inner side of the circular ring frame 72. Blades 73 are fixedly connected to the outer wall of the small shaft 77. A second gear 74 is fixedly connected to the bottom of the outer wall of the small shaft 77 and extends out from the bottom of the communicating pipe 71. The flow component 7 further includes a second rack 75 fixedly connected to the rear end of the lifting frame 2. The second rack 75 meshes with the second gear 74. The flow component 7 further includes a connecting pipe 76 fixedly inserted between the torsion frame 44 and the sliding frame 51. The inside of the sliding frame 51 is hollowly arranged, and the space inside the hollow part is small. When detecting, the bottom of the communicating pipe 71 is below the liquid level, and the top of the connecting pipe 76 is made of a hose material.

[0066] By adopting the above technical solution, when the output shaft of the motor 57 rotates reciprocally, the screw rod 58 can be rotated, so that while the sliding frame 51, the rotating rod 43 and the sliding block 42 move left and right, the communicating pipe 71 can move accordingly. Relative movement occurs between the communicating pipe 71, the second gear 74, the lifting frame 2, and the second rack 75. Under the action of the meshing of the second rack 75 and the second gear 74, the second gear 74 can drive the small shaft 77 and the ring frame 72 to rotate, thereby realizing the rotation of the blade 73. The communicating pipe 71 is located below the liquid level. When the blade 73 rotates, pressure fluctuations can exist in the space formed by the communicating pipe 71, the inside of the sliding frame 51, and the inside of the connecting pipe 76, which is beneficial to causing liquid fluctuations at the position inside the connecting pipe 76 close to the torsion frame 44, making the liquid inside the torsion frame 44 have a certain flowing effect. The flowing conductive liquid is more likely to enter the cable breakage, thereby further improving the detection efficiency.

[0067] The lifting component 6 further includes a spring 64 fixedly connected between the lifting frame 2 and the lifting bracket 61. Card slots 65 are formed on both sides of the lifting bracket 61. The middle part of the lower end of the lifting bracket 61 is rod-shaped to reduce wear on the cable. The lifting component 6 further includes a clamping frame 66. The clamping frame 66 is slidably connected to the inside of the lifting frame 2. A plurality of clamping frames 66 are provided, respectively located between adjacent lifting brackets 61 and corresponding to the positions of the card slots 65. A small groove 67 is formed in the inside of the lifting frame 2 at a position where the middle part of the clamping frame 66 protrudes. A U-shaped elastic sheet 68 is fixedly connected between the inside of the small groove 67 and the clamping frame 66. The top parts of both sides of the clamping frame 66 and the inner top parts of the card slots 65 are both inclined.

[0068] By adopting the above technical solution, components for clamping the cable to limit the movement of the cable can be installed at the positions where the detection box body 1 allows the cable to enter and exit. This is a mature prior art and will not be elaborated too much. When the lifting bracket 61 lifts the cable, since the lower wire wheel 3 moves upward, the cable becomes slack. The torsion frame 44 limits the lifting bracket 61 close to it, causing relative movement between the lifting bracket 61 at this position and the lifting frame 2. The spring 64 fixed to the lifting bracket 61 at this position deforms, so that the lifting bracket 61 at this position is located below the liquid level.

[0069] When one of the lifting brackets 61 is limited, due to its relative movement with the card slot 65, the inclined part of the card slot 65 opened by the lifting bracket 61 can squeeze the clamping frames 66 on both sides, so that the clamping frames 66 move away from the position of the lifting bracket 61 and insert into the card slots 65 of the lifting brackets 61 on both sides, preventing the situation where the lifting brackets 61 on both sides at this position are also pushed into the liquid level by the downward pressure of the cable against the elastic force of the spring 64, and further preventing the cable at other positions from being immersed in the liquid level, thereby further improving the detection accuracy.

[0070] Under the action of the spring 64, when the lifting frame 61 lifts the cable, it can play a certain jittering role, reducing the residual moisture on the cable surface, further reducing the possibility of the residual water on the cable forming an effective path, further increasing the resistance, and reducing the influence on the detection accuracy.

[0071] A marking component 8 is provided at the right top of the torsion frame 44. The marking component 8 is used to mark the damaged accessories of the cable. The inner side of the torsion frame 44 is inclined. When the torsion frame 44 rotates to twist the cable, the damage to the cable is reduced.

[0072] It should be noted that the production materials of the device above the liquid level are all insulating materials.

[0073] By adopting the above technical solution, the marking component 8 includes a cylinder fixed to the right top of the torsion frame 44. An air-powered telescopic rod is arranged inside the cylinder, and the output shaft of the air-powered telescopic rod is fixed with a special underwater marking paint pen for marking this section of the position, which is convenient for finding the damaged position subsequently, thus facilitating the improvement of the efficiency of subsequent cable repair.

[0074] A cable detection method includes the following steps:

[0075] S1. Place the cable. When in use, open the box door, and the cable passes through the openings on both sides of the detection box body 1. When passing through, the cable passes above the upper wire wheel 3 and below the lower wire wheel 3, and passes through the torsion frame 44.

[0076] S2. Conduct power-on detection. By adding a conductive liquid to the inside of the detection box body 1, the conductive liquid can be water. A device for detecting current is installed inside the detection box body 1, and a streaming current meter can be used. It is a mature existing technology and will not be elaborated too much. When detecting, the left end of the cable is powered on. When there is a break, the current enters the conductive liquid, and the detection is carried out through the device for detecting current, and the detection of the break can be realized.

[0077] Working principle: By controlling the output shaft of the motor 57 to rotate reciprocally, the screw 58 can be rotated, so that the mounting plate 52 and the sliding frame 51 can be controlled to move reciprocally in the left-right direction.

[0078] When the sliding frame 51 moves left and right, the rotating rod 43 drives the sliding block 42 to move accordingly, so that the sliding block 42 moves left and right. At this time, a relative movement occurs between the sliding block 42 and the limiting strip 53 fixed on the fixed frame 41, causing a relative movement between the first rack 55 and the limiting block 54 on the limiting strip 53. During this process, the first rack 55 can reciprocate in the front-back direction under the limiting action of the limiting blocks 54 on the two-sided limiting strips 53. Under the meshing action of the first gear 56 and the first rack 55, the first gear 56 can drive the rotating rod 43 to rotate, so that the rotating rod 43 drives the torsion frame 44 to reciprocate and rotate, thereby realizing the torsion of the cable inside the torsion frame 44 during detection, which is beneficial to the opening of the damaged notch of the cable, so that the conductive liquid can enter the damaged notch of the cable.

[0079] When a current is detected by the device for detecting current, it is known that there is a leakage phenomenon in this section. At this time, the lifting assembly 6 is used to judge which specific section in the detection section has the leakage phenomenon.

[0080] When detecting which section is leaking, the output shaft of the electric telescopic rod 62 contracts, so that the fixed plate 63 drives the lifting frame 2 and the lifting bracket 61 to move upward. With such a design, the lifting bracket 61 lifts the cable above the liquid level at this time, and the section of the cable inside the torsion frame 44 is above the liquid level under the limiting action of the torsion frame 44. At this time, the cable continues to be energized and the current is continuously detected. By the output shaft of the motor 57 reciprocatingly rotating, the screw rod 58 can be rotated, so that the sliding frame 51, the rotating rod 43 and the sliding block 42 move left and right, making the torsion frame 44 located at different positions, so as to realize segmented detection of different positions in the detection section.

[0081] By the output shaft of the motor 57 reciprocatingly rotating, the screw rod 58 can be rotated, so that while the sliding frame 51, the rotating rod 43 and the sliding block 42 move left and right, the communicating pipe 71 can move accordingly. A relative movement occurs between the communicating pipe 71, the second gear 74 and the lifting frame 2, the second rack 75. Under the meshing action of the second rack 75 and the second gear 74, the second gear 74 can drive the small shaft 77 and the ring frame 72 to rotate, so as to realize the rotation of the blade 73. The communicating pipe 71 is located below the liquid level. When the blade 73 rotates, a pressure fluctuation can exist in the space formed by the communicating pipe 71, the inside of the sliding frame 51 and the inside of the connecting pipe 76, which is beneficial to the liquid fluctuation at the position close to the torsion frame 44 inside the connecting pipe 76, making the liquid inside the torsion frame 44 have a certain flow effect, and the flowing conductive liquid is more likely to enter the damaged part of the cable.

[0082] When one of the lifting brackets 61 is limited, due to its relative movement with the clamping groove 65, the inclined portion of the clamping groove 65 formed in the lifting bracket 61 can squeeze the clamping brackets 66 on both sides, so that the clamping brackets 66 move away from the lifting bracket 61 and insert into the clamping grooves 65 of the two side lifting brackets 61, preventing the situation where the two side lifting brackets 61 at this position are pressed downward by the cable and overcome the elastic force of the spring 64 and extend below the liquid level, and further preventing the cables at other positions from being immersed below the liquid level.

[0083] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than limiting them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A cable detection device, comprising a detection box body (1), the interior of the detection box body (1) is configured with a conductive liquid, a lifting frame (2) slides inside the detection box body (1), and wire wheels (3) for restricting cables are configured inside both the lifting frame (2) and the detection box body (1), characterized in that, The detection device further includes: A cable twisting mechanism (4), disposed inside the detection box body (1). The cable twisting mechanism (4) includes a fixed frame (41) disposed inside the detection box body (1). A sliding block (42) is disposed inside the fixed frame (41). A rotating rod (43) is rotated inside the sliding block (42). A twisting frame (44) is disposed at the bottom of the rotating rod (43). The cable passes through the inside of the twisting frame (44). The twisting frame (44) rotates to twist the cable, facilitating the entry of the conductive liquid into the damaged inside of the cable. A driving assembly (5), disposed outside the fixed frame (41). The driving assembly (5) is used to control the rotating rod (43) to drive the twisting frame (44) to rotate. A lifting assembly (6), disposed inside the detection box body (1). The lifting assembly (6) includes a lifting frame (61) that linearly and arrayedly slides at the bottom of the lifting frame (2). The lifting frame (61) moves upward to lift the cable so that the cable is higher than the liquid level, and the cable at the position of the twisting frame (44) is below the liquid level.

2. The cable detection device according to claim 1, characterized in that, The driving assembly (5) includes: A sliding frame (51), slidably connected to the outside of the lifting frame (2). The front end of the sliding frame (51) is rotatably connected to the rotating rod (43). The rear end of the sliding frame (51) is fixedly connected to a mounting plate (52). Restriction bars (53), there are two restriction bars (53). The two restriction bars (53) are respectively fixedly connected to the front and rear ends of the top of the fixed frame (41). A restriction block (54) is fixedly connected to the side of the two restriction bars (53) close to each other. And the restriction blocks (54) at the front and rear ends of the restriction bars (53) are staggered. A first rack (55), slidably connected to the top of the sliding block (42). A first gear (56), fixedly connected to the outer wall top of the rotating rod (43). The first gear (56) meshes with the first rack (55).

3. A cable detection device according to claim 2, characterized in that, The driving assembly (5) further includes: A motor (57), fixedly connected to the inner wall of the detection box body (1). The output shaft of the motor (57) is fixedly connected to a screw rod (58). The outer wall of the screw rod (58) is threadedly connected to the mounting plate (52).

4. A cable detection device according to claim 3, characterized in that, Circular shafts (59) are rotatably connected to both the front and rear ends of the first rack (55).

5. A cable detection device according to claim 1, characterized in that: The lifting assembly (6) further includes: An electric telescopic rod (62), fixedly connected to the outside of the fixed frame (41). The output shaft of the electric telescopic rod (62) is fixedly connected to a fixing plate (63). The end of the fixing plate (63) is fixedly connected to the lifting frame (2).

6. The cable detection device according to claim 1, characterized in that, The detection device further includes: A flow assembly (7), disposed below the fixed frame (41). The flow assembly (7) includes a communication pipe (71) fixedly inserted at the bottom of the sliding frame (51). A circular ring frame (72) is connected inside the communication pipe (71). A small shaft (77) is fixedly connected to the inner side of the circular ring frame (72). A blade (73) is fixedly connected to the outer wall of the small shaft (77). The bottom of the outer wall of the small shaft (77) extends out from the bottom of the communication pipe (71) and is fixedly connected to a second gear (74). A second rack (75), fixedly connected to the rear end of the lifting frame (2). The second rack (75) meshes with the second gear (74). The connecting pipe (76) is fixedly inserted between the torsion frame (44) and the sliding frame (51).

7. A cable detection device according to claim 6, characterized in that: The interior of the sliding frame (51) is hollow. During detection, the bottom of the connecting pipe (71) is located below the liquid level, and the top of the connecting pipe (76) is made of a section of hose material.

8. A cable detection device according to claim 5, characterized in that , The lifting assembly (6) further includes: A spring (64) fixedly connected between the lifting frame (2) and the lifting bracket (61). Slots (65) are provided on both sides of the lifting bracket (61). The middle part of the lower end of the lifting bracket (61) is rod-shaped to reduce wear on the cable. A clamping frame (66) is slidably connected to the inside of the lifting frame (2). There are multiple clamping frames (66), which are respectively located between adjacent lifting brackets (61) and corresponding to the positions of the slots (65). A small slot (67) is provided inside the lifting frame (2) at a position protruding near the middle part of the clamping frame (66). A U-shaped elastic piece (68) is fixedly connected between the inside of the small slot (67) and the clamping frame (66). The top parts on both sides of the clamping frame (66) and the inner top parts of the slots (65) are both inclined.

9. A cable detection device according to claim 1, characterized in that, A marking assembly (8) is provided at the top right of the torsion frame (44). The marking assembly (8) is used to mark the damaged accessories of the cable. The inner side of the torsion frame (44) is inclined, which reduces damage to the cable when the torsion frame (44) rotates to twist the cable.

10. A cable detection method, characterized in that: This method is applicable to the cable detection device of any one of claims 1-9, and includes the following steps: S1. Place the cable. The cable passes through the openings on both sides of the detection box body (1), passes above the upper guide pulley (3), passes below the lower guide pulley (3), and passes through the torsion frame (44). S2. Conduct power-on detection. Add conductive liquid to the inside of the detection box body (1), power on the cable, and detect the current in the conductive liquid through a device for detecting current.

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