Cable core breakage detection device

Abstract

The invention discloses a cable broken core detection device, and belongs to the technical field of cable detection, the cable broken core detection device comprises a detection box, a cable body is inserted in the detection box, a sealing mechanism is arranged in the detection box, and the sealing mechanism comprises an air pump which is fixedly installed at the top end of the detection box and is protected by a protection plate; the inner wall, close to the cable body, of the detection box is provided with a sealed air bag, the sealed air bag is communicated with the input end and the output end of an air pump through an air inlet pipe and an air outlet pipe, and the position, close to the middle of the cable body, of the detection box is provided with a partition plate. Therefore, the gap between the detection box and the cable is effectively sealed, and external moisture, dust and the like are prevented from entering the detection box to interfere with detection. And meanwhile, the inflatable folding plate can separate the cable at the partition plate, so that the sealing performance is further enhanced, and a stable and pure detection environment is created for detection equipment.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of cable detection, in particular to a cable core breakage detection device. BACKGROUND

[0002] In many fields such as power transmission and communication, the normal operation of cables as the key transmission medium is crucial. The traditional cable core breakage detection method needs to be checked manually, which is not only inefficient, but also difficult for manual detection of cables in complex environments, such as buried cables and high-altitude erected cables. At the same time, although some existing detection equipment can realize core breakage detection to a certain extent, the sealing of the detection device is poor, which will cause external moisture, dust and other impurities to enter the detection area, interfere with the detection signal, and easily cause misjudgment or omission. Even it may cause damage to the detection equipment itself and shorten its service life. SUMMARY

[0003] The purpose of the present application is to provide a cable core breakage detection device to solve the problem of poor sealing of the detection device in the background art, which will cause external moisture, dust and other impurities to enter the detection area and interfere with the detection signal.

[0004] To achieve the above purpose, the present application provides the following technical scheme: a cable core breakage detection device, comprising a detection box, a cable body is inserted in the inside of the detection box, a sealing mechanism is arranged in the inside of the detection box, the sealing mechanism comprises a gas pump fixedly installed at the top end of the detection box and protected by a protection plate, a sealing air bag is arranged on the inner wall of the detection box close to the cable body, the sealing air bag is in communication with the input end and the output end of the gas pump through the air inlet pipe and the air outlet pipe respectively, a partition plate is arranged at the middle position of the detection box close to the cable body, a groove is formed in the inside of the partition plate, an air-filled folding plate for partitioning the cable body is arranged in the inside of the groove, an annular pipe is fixedly installed on the outer surface of the partition plate, the air inlet pipe is in communication with the inside of the air-filled folding plate through the annular pipe, a drying mechanism is arranged in the inside of the detection box, the drying mechanism comprises a detection cylinder installed in the inside of the detection box, and an infrared detection device is fixedly installed at one end of the detection cylinder close to the cable body.

[0005] As a preferred technical scheme of the present application, a pressing plate is arranged in the inside of the detection box close to the sealing air bag, a plurality of first springs are fixedly installed between the pressing plate and the inner wall of the detection box, and the sealing air bag is arranged between the inner wall of the detection box and the pressing plate.

[0006] As a preferred technical scheme of the present application, two telescopic members are symmetrically arranged inside the detection box close to the inner side of the cable body, the output end of the telescopic member is fixedly connected with a limiting plate, the cross section of the limiting plate is arc-shaped, the cable body is located between the two limiting plates, and the inner side of the telescopic member is communicated with the air inlet pipe.

[0007] As a preferred technical scheme of the present application, a sliding groove is arranged inside the partition plate, a sliding block is fixedly arranged at one end of the inflatable folding plate, the sliding block is slidingly arranged inside the sliding groove, and an elastic rope for resetting the inflatable folding plate is fixedly arranged between the inflatable folding plate and the inner wall of the groove.

[0008] As a preferred technical scheme of the present application, a guide plate with elastic deformation is fixedly arranged on the outer side of the detection box close to the cable body, and the cable body slidingly penetrates through the guide plate, and the cross section of the guide plate is conical.

[0009] As a preferred technical scheme of the present application, a heat dissipation mechanism is arranged on one side of the detection box, the heat dissipation mechanism comprises a motor fixedly arranged on the outer side of the detection box, a fan blade is fixedly arranged on the output shaft of the motor, a rotating plate is fixedly arranged on the output shaft of the motor close to the inner wall of the detection box, a baffle is fixedly arranged on the inner wall of the detection box close to the rotating plate, a plurality of air holes are arranged on the surface of the rotating plate and the baffle, and a plurality of ventilation holes are arranged on the inner wall of the detection box close to the fan blade.

[0010] As a preferred technical scheme of the present application, a plurality of drying rods for adsorbing moisture in the detection box are fixedly arranged on the inner wall of the detection cylinder close to the cable body, a plurality of carbon blocks are filled in the drying rods, a branch air pipe is arranged in the drying rods, the output end of the air pump is communicated with a connecting pipe, and the connecting pipe is communicated with the branch air pipe.

[0011] As a preferred technical scheme of the present application, air permeable cotton for accelerating moisture and odor adsorption is fixedly arranged on the outer surface of the drying rod, a spiral impeller for stirring airflow is fixedly arranged on the outer surface of the drying rod, and the output shaft of the motor is fixedly connected with the detection cylinder.

[0012] As a preferred technical scheme of the present application, a soft magnetic alloy rod is arranged between the connecting pipe and the branch air pipe, a first sealing ring and a second sealing ring are fixedly arranged on one end of the connecting pipe and the branch air pipe respectively, and a rubber gasket is arranged between the first sealing ring and the second sealing ring.

[0013] As a preferred technical scheme of the present application, a friction ring is fixedly arranged on the outer surface of the detection cylinder, a plurality of friction blocks are fixedly arranged on the outer surface of the friction ring, an electrically conductive ring is fixedly arranged on the surface of the detection box close to the friction ring, a discharge component for discharging current is arranged on the outer surface of the electrically conductive ring, and the friction blocks slidingly move on the inner wall of the electrically conductive ring.

[0014] Compared with the prior art, the present application has the following advantages: 1、The present application can inflate or deflate the sealing air bag according to the needs through the cooperation of the air pump, air inlet pipe, air outlet pipe and sealing air bag, so that the sealing air bag closely adheres to the cable body, effectively seals the gap between the detection box and the cable, and prevents external moisture, dust and the like from entering the detection box to interfere with the detection. At the same time, the inflatable folding plate can block the cable at the partition, further enhancing the sealing, creating a stable and pure detection environment for the detection equipment, and improving the accuracy of the detection results.

[0015] 2、The present application has multiple pressing plate structures arranged in the detection box. On the one hand, through the cooperation of the first spring and the pressing plate, when the sealing air bag is inflated and expanded, the pressing plate can better adhere to the cable under the action of the spring, enhancing the sealing and fixing effect. On the other hand, the combination of the telescopic member and the arc-shaped pressing plate can stably clamp the cable body of different thicknesses, and the telescopic member is in communication with the air inlet pipe, so that more flexible clamping operation can be realized by using gas pressure, meeting the diversified cable detection needs.

[0016] 3、The present application has a drying rod in the drying mechanism, and the inside is filled with carbon blocks, which can efficiently adsorb the moisture in the detection box. At the same time, the air outlet pipe is in communication with the output end of the air pump, which can accelerate the circulation of gas in the drying rod and improve the adsorption efficiency. The setting of the air-permeable cotton further accelerates the adsorption process of moisture and odor, and the spiral impeller can stir the airflow, so that the drying rod is in full contact with the surrounding air, and moisture and odor are removed in all directions, ensuring the dryness and cleanliness of the detection environment.

[0017] 4、The present application drives the fan blades to rotate by the motor to generate airflow, and the air-permeable holes designed on the surface of the rotating plate and the baffle make the airflow flow in an orderly manner in the detection box, effectively taking away the heat generated during the detection process. At the same time, the setting of the ventilation opening facilitates the discharge of hot air from the detection box, forming a good heat dissipation circulation, preventing the detection equipment from being damaged due to overheating, and ensuring the continuous and stable operation of the detection work.

[0018] 5、The present application has a friction ring and a friction block installed on the outer surface of the detection cylinder. During the relative sliding with the conductive ring, a friction electrification phenomenon occurs, and the generated static electricity is discharged in time through the discharge component arranged on the outer surface of the conductive ring through the attraction of electricity, avoiding the interference of static electricity accumulation on the detection equipment, even causing safety accidents, providing safety protection for the detection process, and improving the reliability and stability of the entire detection device. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the present application; Figure 2 It is a schematic diagram of the side view structure of the present application; Figure 3 It is the schematic diagram of the internal structure of the detection box of the present application; Figure 4 It is the schematic diagram of the sealed air bag structure of the present application; Figure 5 It is the schematic diagram of the inflatable folding board structure of the present application; Figure 6 It is the schematic diagram of the infrared detection equipment structure of the present application; Figure 7 It is the schematic diagram of the friction ring structure of the present application; Figure 8 It is the schematic diagram of the carbon block structure of the present application; Figure 9 It is the schematic diagram of the fan blade structure of the present application.

[0020] In the figure: 1, detection box; 2, protective plate; 3, cable body; 4, closing mechanism; 41, air pump; 42, air outlet pipe; 43, air inlet pipe; 44, pressing plate; 45, first spring; 46, sealed air bag; 47, limiting plate; 48, telescopic part; 49, partition; 410, annular pipe; 411, groove; 412, elastic rope; 413, inflatable folding board; 414, sliding groove; 5, guide plate; 6, drying mechanism; 61, detection cylinder; 62, infrared detection equipment; 63, connecting pipe; 64, discharge part; 65, conductive ring; 66, friction ring; 67, friction block; 68, first sealing ring; 69, second sealing ring; 610, drying rod; 611, air-permeable cotton; 612, carbon block; 613, air branch; 614, spiral impeller; 615, soft magnetic alloy rod; 7, heat dissipation mechanism; 71, baffle; 72, rotating plate; 73, fan blade; 74, motor; 75, ventilation opening. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without creative work fall within the protection scope of the present application.

[0022] Please refer to Figures 1-9The application provides a cable core breakage detection device, which comprises a detection box 1, a cable body 3 is arranged in the detection box 1, a sealing mechanism 4 is arranged in the detection box 1, the sealing mechanism 4 comprises an air pump 41 which is fixedly installed at the top end of the detection box 1 and is protected by a protection plate 2, a sealing air bag 46 is arranged on the inner wall of the detection box 1 close to the cable body 3, the sealing air bag 46 is in communication with the input end and the output end of the air pump 41 through an air inlet pipe 43 and an air outlet pipe 42 respectively, a partition plate 49 is arranged at the middle position of the detection box 1 close to the cable body 3, a groove 411 is formed in the partition plate 49, an inflatable folding plate 413 for partitioning the cable body 3 is arranged in the groove 411, an annular pipe 410 is fixedly installed on the outer surface of the partition plate 49, the air inlet pipe 43 is in communication with the inflatable folding plate 413 through the annular pipe 410, a drying mechanism 6 is arranged in the detection box 1, and the drying mechanism 6 comprises a detection cylinder 61 which is arranged in the detection box 1 and is fixedly installed with an infrared detection device 62 at one end close to the cable body 3.

[0023] One end of the cable body 3 is inserted into the detection box 1, then the air pump 41 controls the inflation and deflation of the sealing air bag 46 through the air inlet pipe 43 and the air outlet pipe 42, so that the sealing air bag 46 is attached to the cable body 3 to achieve preliminary sealing; at the same time, the air pump 41 inflates the inflatable folding plate 413 in the groove 411 of the partition plate 49 through the annular pipe 410, so that the inflatable folding plate 413 is unfolded to partition the cable body 3, forming a closed detection space, through the double sealing of the sealing air bag 46 and the inflatable folding plate 413, the interference of the external environment on the detection is effectively isolated, a stable detection environment is created for the detection device, and the accuracy and reliability of the detection result are improved; further, the infrared detection device in the detection cylinder 61 is used for core breakage detection of the cable.

[0024] In some embodiments, a pressing plate 44 is arranged in the detection box 1 close to the sealing air bag 46, a plurality of first springs 45 are fixedly installed between the pressing plate 44 and the inner wall of the detection box 1, and the sealing air bag 46 is arranged between the inner wall of the detection box 1 and the pressing plate 44.

[0025] When the air pump 41 inflates the sealing air bag 46, the sealing air bag 46 expands to push the pressing plate 44, the pressing plate 44 compresses the first spring 45, and the arrangement of the first spring 45 enhances the sealing effect of the sealing air bag 46 on the cable body 3, so that the sealing is more tight and the stability of the detection environment is further improved; when deflating, the elastic force of the first spring 45 pushes the pressing plate 44 to reset, which assists the sealing air bag 46 to better attach to the cable body 3.

[0026] In some embodiments, the detection box 1 is symmetrically mounted with two telescopic members 48 near the inner side of the cable body 3, the output end of the telescopic member 48 is fixedly mounted with a limiting plate 47, the cross section of the limiting plate 47 is arc-shaped, and the cable body 3 is located between the two limiting plates 47, and the inner side of the telescopic member 48 is in communication with the air inlet pipe 43.

[0027] Wherein, when the air pump 41 works, the gas enters the telescopic member 48 to make it elongate, and push the arc-shaped limiting plate 47 to clamp the cable body 3 located between the two limiting plates 47, which can automatically adjust the clamping force according to the thickness of the cable body 3, effectively fix different specifications of the cable body 3, and ensure the position stability of the cable body 3 during detection, facilitating accurate detection.

[0028] In some embodiments, the inner side of the partition plate 49 is provided with a sliding groove 414, one end of the inflatable folding plate 413 is fixedly mounted with a sliding block, the sliding block is slidingly mounted in the inner side of the sliding groove 414, and the inflatable folding plate 413 and the inner wall of the groove 411 are fixedly mounted with an elastic rope 412 for resetting the inflatable folding plate 413.

[0029] Wherein, when the inflatable folding plate 413 is inflated, the sliding block at one end of the inflatable folding plate 413 slides in the sliding groove 414 of the partition plate 49, so that the inflatable folding plate 413 is unfolded, realizing the separation function between the cable body 3 and the cable core break; after deflation, the tension of the elastic rope 412 makes the inflatable folding plate 413 reset and shrink back into the groove 411, ensuring the stability of the unfolding and shrinking of the inflatable folding plate 413.

[0030] In some embodiments, the detection box 1 is fixedly mounted with a guide plate 5 with elastic deformation near the outer side of the cable body 3, and the cable body 3 slidingly penetrates the guide plate 5, and the cross section of the guide plate 5 is conical.

[0031] Wherein, the guide plate 5 with conical cross section utilizes its elastic deformation characteristics, when the cable body 3 slidingly penetrates the guide plate 5, since the guide plate 5 adopts a soft rubber material to prepare a horn-shaped sleeve, therefore the guide plate 5 can guide the cable body 3 to smoothly enter the detection box 1, and play a certain sealing and fixing and guiding role to the cable body 3, facilitating the insertion and positioning of the cable body 3, reducing the shaking and deviation of the cable body 3 during the insertion process, so that the cable body 3 can accurately reach the detection position, improving the convenience and accuracy of detection.

[0032] In some embodiments, one side of the detection box 1 is provided with a heat dissipation mechanism 7, the heat dissipation mechanism 7 includes a motor 74 fixedly installed on the outer side of the detection box 1, the output shaft of the motor 74 is fixedly installed with a fan blade 73, and one end of the output shaft of the motor 74 close to the inner wall of the detection box 1 is fixedly installed with a rotating plate 72; The inner wall of the detection box 1 close to the rotating plate 72 is fixedly installed with a baffle 71, and a plurality of air holes are formed on the surfaces of the rotating plate 72 and the baffle 71, and a plurality of ventilation openings 75 are formed on the inner wall of the detection box 1 close to the fan blade 73.

[0033] Wherein, after the motor 74 is started, the output shaft drives the fan blade 73 to rotate to generate airflow, and drives the rotating plate 72 to rotate at the same time, the air holes on the surfaces of the rotating plate 72 and the baffle 71 make the airflow form an orderly flow in the detection box 1, and the hot air is discharged from the detection box 1 through the ventilation openings 75, effectively accelerating the circulation of air in the detection box 1, enhancing the heat dissipation effect, and preventing the detection equipment from being damaged due to overheating.

[0034] In some embodiments, a plurality of drying rods 610 for adsorbing moisture in the detection box 1 are fixedly installed on the inner wall of the detection cylinder 61 close to the cable body 3, the inside of the drying rod 610 is filled with a plurality of carbon blocks 612, the inside of the drying rod 610 is provided with a branch air pipe 613, the output end of the air pump 41 is communicated with a connecting pipe 63, and the connecting pipe 63 is communicated with the branch air pipe 613.

[0035] Wherein, the carbon blocks 612 in the drying rod 610 adsorb the moisture in the detection box 1, and at the same time, the air pump 41 sends gas to the branch air pipe 613 in the inside of the drying rod 610 through the connecting pipe 63, the gas flowing in the drying rod 610 promotes the adsorption of moisture, prevents the moisture from causing damage to the detection equipment and the cable body 3, ensures the dryness of the detection environment, and improves the reliability of the detection.

[0036] In some embodiments, the outer surface of the drying rod 610 is fixedly installed with air-permeable cotton 611 for accelerating the adsorption of moisture and odor, and the outer surface of the drying rod 610 is fixedly installed with a spiral impeller 614 for stirring airflow, and the output shaft of the motor 74 is fixedly connected with the detection cylinder 61.

[0037] Wherein, the output shaft of the motor 74 drives the detection cylinder 61 to rotate, improves the range of core break detection, and at the same time, the spiral impeller 614 fixedly installed on the outer surface of the drying rod 610 stirs the airflow, the air-permeable cotton 611 accelerates the adsorption of moisture and odor, and the stirring of the spiral impeller 614 and the adsorption of the air-permeable cotton 611 are combined, which greatly improves the adsorption efficiency of the drying rod 610 to moisture and odor, further improves the environmental quality in the detection box 1, and ensures the accuracy of the detection.

[0038] In some embodiments, a soft magnetic alloy rod 615 is arranged between the connecting pipe 63 and the branch pipe 613, and a first sealing ring 68 and a second sealing ring 69 are fixedly arranged at one end of the connecting pipe 63 and the branch pipe 613, respectively, and a rubber gasket is arranged between the first sealing ring 68 and the second sealing ring 69.

[0039] The soft magnetic alloy rod 615 is arranged between the connecting pipe 63 and the branch pipe 613, and plays a role in connecting and guiding the airflow, thereby enhancing the stability and flexibility of the connection; when the detection cylinder 61 rotates, the first sealing ring 68, the second sealing ring 69 and the rubber gasket ensure the sealing of the connection, prevent gas leakage, ensure smooth gas circulation of the drying mechanism 6, and improve the drying effect.

[0040] In some embodiments, a friction ring 66 is fixedly arranged on the outer surface of the detection cylinder 61, a plurality of friction blocks 67 are fixedly arranged on the outer surface of the friction ring 66, a conductive ring 65 is fixedly arranged on the surface of the detection box 1 close to the friction ring 66, and a discharge component 64 for discharging current is arranged on the outer surface of the conductive ring 65, and the friction blocks 67 slide on the inner wall of the conductive ring 65.

[0041] When the detection cylinder 61 rotates, the friction ring 66 and the friction blocks 67 fixed on the outer surface thereof slide on the inner wall of the conductive ring 65 to generate a friction electrification phenomenon, and the discharge component 64 on the outer surface of the conductive ring 65 discharges the generated static electricity in time, thereby eliminating the static electricity generated during the detection process in time, avoiding the interference of static electricity on the detection equipment and the cable, and improving the safety and accuracy of the detection.

[0042] Working principle: insert the end of the cable body 3 with a broken core into the detection box 1, then the air pump 41 controls the inflation and deflation of the sealed air bag 46 through the air inlet pipe 43 and the air outlet pipe 42 to make the sealed air bag 46 adhere to the cable body 3 to achieve preliminary sealing; at the same time, the air pump 41 inflates the inflatable folding plate 413 in the groove 411 of the partition plate 49 through the annular pipe 410 to make it unfold and separate the cable body 3, forming a closed detection space, which effectively isolates the external environment from interfering with the detection, creates a stable detection environment for the detection equipment, improves the accuracy and reliability of the detection result, and finally detects the broken core of the cable through the infrared detection equipment inside the detection cylinder 61.

[0043] The above is only a specific embodiment of the present application, but the technical features of the present application are not limited thereto. Any simple change, equivalent replacement or modification made on the basis of the present application to solve the basically same technical problem and achieve the basically same technical effect is covered by the protection scope of the present application.

Claims

1. A cable core breakage detection device comprising a detection box (1), characterized in that: The inside of the detection box (1) is provided with a cable body (3), the inside of the detection box (1) is provided with a sealing mechanism (4), the sealing mechanism (4) comprises a gas pump (41) which is fixedly installed at the top end of the detection box (1) and protected by the protection plate (2), the inner wall of the detection box (1) is provided with a sealed air bag (46) close to the cable body (3), the sealed air bag (46) is communicated with the input end and the output end of the gas pump (41) through the air inlet pipe (43) and the air outlet pipe (42) respectively, the partition plate (49) is arranged at the middle position of the cable body (3), the inside of the partition plate (49) is provided with a groove (411), the inside of the groove (411) is provided with an inflatable folding plate (413) for partitioning the cable body (3), the outer surface of the partition plate (49) is fixedly installed with an annular pipe (410), the air inlet pipe (43) is communicated with the inside of the inflatable folding plate (413) through the annular pipe (410), the inside of the detection box (1) is provided with a drying mechanism (6), the drying mechanism (6) comprises a detection cylinder (61) installed in the inside of the detection box (1), one end of the detection cylinder (61) close to the cable body (3) is fixedly installed with an infrared detection device (62).

2. A cable core breakage detection device according to claim 1, characterised in that: The inside of the detection box (1) is provided with a pressing plate (44) close to the sealed air bag (46), a plurality of first springs (45) are fixedly installed between the pressing plate (44) and the inner wall of the detection box (1), and the sealed air bag (46) is arranged between the inner wall of the detection box (1) and the pressing plate (44).

3. A cable open core detection device according to claim 1, characterised in that: The inside of the detection box (1) is symmetrically provided with two telescopic members (48) close to the cable body (3), the output end of the telescopic member (48) is fixedly installed with a limiting plate (47), the cross section of the limiting plate (47) is arc-shaped, and the cable body (3) is located between the two limiting plates (47), the inside of the telescopic member (48) is communicated with the air inlet pipe (43).

4. A cable open core detection device according to claim 1, characterised in that: The inside of the partition plate (49) is provided with a sliding groove (414), and one end of the inflatable folding plate (413) is fixedly installed with a sliding block, the sliding block is slidingly installed in the inside of the sliding groove (414), and the elastic rope (412) for resetting the inflatable folding plate (413) is fixedly installed between the inflatable folding plate (413) and the inner wall of the groove (411).

5. A cable open core detection device according to claim 1, characterised in that: The detection box (1) is fixedly installed with a guide plate (5) with elastic deformation close to the outside of the cable body (3), and the cable body (3) slidingly penetrates the guide plate (5), and the cross section of the guide plate (5) is conical.

6. A cable open core detection device according to claim 1, characterized in that: The detection box (1) is provided with a heat dissipation mechanism (7) on one side, the heat dissipation mechanism (7) comprises a motor (74) fixedly installed on the outer side of the detection box (1), the output shaft of the motor (74) is fixedly installed with a fan blade (73), one end of the output shaft of the motor (74) close to the inner wall of the detection box (1) is fixedly installed with a rotating plate (72), the inner wall of the detection box (1) close to the rotating plate (72) is fixedly installed with a baffle (71), and the surfaces of the rotating plate (72) and the baffle (71) are provided with a plurality of air holes, and the inner wall of the detection box (1) close to the fan blade (73) is provided with a plurality of ventilation openings (75).

7. A cable open core detection device according to claim 1, characterised in that: The detection cylinder (61) is fixedly installed with a plurality of drying rods (610) for adsorbing moisture in the detection box (1) on the inner wall close to the cable body (3), the inside of the drying rod (610) is filled with a plurality of carbon blocks (612), the inside of the drying rod (610) is provided with a branch air pipe (613), the output end of the air pump (41) is communicatedly installed with a connecting pipe (63), and the connecting pipe (63) and the branch air pipe (613) are communicated.

8. A cable open core detection device according to claim 7, characterised in that: The outer surface of the drying rod (610) is fixedly installed with air-permeable cotton (611) for accelerating moisture and odor adsorption, and the outer surface of the drying rod (610) is fixedly installed with a spiral impeller (614) for stirring airflow, and the output shaft of the motor (74) is fixedly connected with the detection cylinder (61).

9. A cable open core detection device according to claim 7, characterised in that: The connecting pipe (63) and the branch air pipe (613) are provided with a soft magnetic alloy rod (615), one end of the connecting pipe (63) and the branch air pipe (613) is fixedly installed with a first sealing ring (68) and a second sealing ring (69) respectively, and a rubber gasket is arranged between the first sealing ring (68) and the second sealing ring (69).

10. A cable open core detection device according to claim 1, characterized in that: The outer surface of the detection cylinder (61) is fixedly installed with a friction ring (66), the outer surface of the friction ring (66) is fixedly installed with a plurality of friction blocks (67), the surface of the detection box (1) close to the friction ring (66) is fixedly installed with a conductive ring (65), the outer surface of the conductive ring (65) is provided with a discharge part (64) for discharging current, and the friction blocks (67) slide on the inner wall of the conductive ring (65).

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