Cable line loss checking device and method
The cable line loss inspection device composed of dye detection liquid and bending parts solves the accuracy and positioning problems of cable sheath damage detection, and realizes efficient and safe cable sheath damage detection.
Patent Information
- Application Number
- CN202510989781.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-07-17
- Publication Date
- 2025-09-19
AI Technical Summary
In the prior art, shallow damage to the cable sheath surface cannot be detected, and the conductive liquid detection cannot accurately locate the damage position, resulting in poor detection accuracy.
The cable loss inspection device consists of a dye detection liquid and a bending part. The bending part opens the cracks in the cable skin, allowing the dye detection liquid to penetrate and form a color mark for easy positioning. The excess dye liquid is scraped off with a scraper, and the use of non-conductive liquid reduces safety risks.
The accuracy and stability of cable sheath damage detection are improved, the damage position can be accurately located, costs are reduced, safety is improved, and risks caused by electrification of conductive fluid are avoided.
Smart Images
Figure CN120668673A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the field of cable line loss detection, and in particular to a cable line loss detection device and method. Background Art
[0002] Cables are made of conductive materials and are used to transmit power, communication signals, or data. To ensure proper operation and safe use, cables must be tested and inspected to check for damage to the cable sheath and prevent leakage during subsequent use. In the prior art, when judging whether the cable sheath is damaged and the insulation quality, the cable is generally immersed in a conductive liquid to energize the inside of the cable, and then the test result is obtained by testing whether the water pool is charged.
[0003] However, in actual application, when the damage on the surface of the cable sheath is shallow, even if the cable is energized, the conductive liquid will not contact the conductor at the cable core, so the damage to the cable sheath cannot be detected. At the same time, the existing technology uses conductive liquid to detect whether the cable sheath is damaged. During the detection process, in order to improve the detection efficiency, a certain length of cable needs to be placed in the conductive liquid. When a certain part of the cable is damaged and the conductive liquid is detected to be energized, due to the long length of the cable in the conductive liquid, the damaged position cannot be accurately located, and the detection accuracy is poor. Summary of the Invention
[0004] The present invention provides a cable line loss detection device and method, which can solve the following problems existing in the prior art: 1) When the damage on the cable sheath is shallow, the conductive liquid will not come into contact with the conductor at the cable core even if the cable is energized, so the damage to the cable sheath cannot be detected. 2) When a part of the cable is damaged and the conductive liquid is charged during detection, the damaged part cannot be accurately located due to the long length of cable in the conductive liquid.
[0005] A cable line loss detection device includes a detection box for storing a dye detection liquid; An inlet slot for inputting the cable body is provided on one side of the detection box, and an outlet slot for outputting the cable body is provided on the other side thereof; The outlet groove is fixedly provided with a scraper cylinder on one side close to the inlet groove for removing the dye detection liquid attached to the surface of the cable body. The axial end of the scraper cylinder is provided with a scraper groove for inserting the cable body, and the cable sheath of the cable body slides and fits with the groove wall of the scraper groove.
[0006] Preferably, the cable sheath of the cable body is circumferentially and equiangularly divided into a first area, a second area, a third area and a fourth area; Among them, the detection box is sequentially provided with a first bending portion for bending the cable skin at the first area, a second bending portion for bending the cable skin at the second area, a third bending portion for bending the cable skin at the third area, and a fourth bending portion for bending the cable skin at the fourth area.
[0007] Preferably, a feed guide wheel is rotatably arranged on one side of the inlet trough close to the outlet trough, and the first bending portion includes a first bending wheel rotatably arranged on one side of the bottom of the feed guide wheel.
[0008] Preferably, a second bending wheel is rotatably arranged on one side of the first bending wheel.
[0009] Preferably, the third bending portion includes a third bending wheel rotatably arranged on one side of the second bending wheel.
[0010] Preferably, the third bending portion includes a fourth bending wheel rotatably arranged on one side of the third bending wheel.
[0011] Preferably, a first discharge guide wheel is rotatably arranged on one side of the fourth bending wheel, a second discharge guide wheel is rotatably arranged on the first discharge guide wheel, and the second discharge guide wheel receives the outlet slot.
[0012] Preferably, two sets of guide rods are symmetrically fixed on the top of the detection box, and adjustment seats are slidably sleeved on the guide rods on both sides, and the third bending wheel and the fourth bending wheel are rotatably arranged on the bottom of the adjustment seat respectively; Wherein, a telescopic spring is further provided on the guide rod, one end of the telescopic spring is fixed to the adjustment seat, and the other end is fixed to the box wall of the detection box.
[0013] Preferably, a detection ring is fixedly arranged on one side of the detection box, and monitoring cameras corresponding to each area are arranged in a circumferential array on the detection ring for photographing the surface of the cable body being delivered.
[0014] A cable line loss detection method, applied to the above-mentioned cable line loss detection device, comprises the following steps: The cable body to be inspected is fed into the inspection box through the inlet slot and comes into contact with the dyed inspection liquid in the inspection box; The dyed test liquid in the test box adheres to the cable body; The cable body is transported through the scraping groove at the axis end of the scraping tube. The dye test liquid attached to the cable body is scraped off through the scraping groove and falls back into the test box. However, the dye test liquid that penetrates into the cracks of the cable skin cannot be scraped off. The cable body passing through the scraper groove is output from the outlet groove; After the cable body is output, the dye detection liquid in the crack forms a color mark on the cable sheath of the cable body, and the crack can be located by the color mark.
[0015] The present invention provides a cable line loss detection device and method, which have the following beneficial effects: 1) Before the cable body of the present invention passes through the outlet groove, the cable body is first passed through the scraping liquid groove at the axial end of the scraping liquid cylinder. The dye detection liquid attached to the cable body is scraped off by the groove wall of the scraping liquid groove and falls back into the detection box. The scraped dye detection liquid can be reused, which reduces the cost. Correspondingly, when the cable body is transported in the dye detection liquid in the detection box, the dye detection liquid will not only adhere to the cable sheath of the cable body, but also penetrate into the cracks and damages of the cable sheath. Although the dye detection liquid attached to the cable sheath can be scraped off by setting the scraping liquid cylinder, the dye detection liquid that penetrates into the cracks of the cable sheath cannot be removed. After the cable body is discharged from the outlet slot, the dyed detection liquid in the crack forms a color mark on the cable sheath of the cable body, so that the existence of the crack on the cable body can be more intuitively seen. Compared with the solution of using conductive liquid detection in the prior art, the present invention can more accurately locate the crack on the cable body, so as to facilitate immediate repair. At the same time, even if the crack is shallow, it will not affect the formation of the color mark on the cable body. For such shallow cracks, the prior art cannot detect them. The detection accuracy of the present invention is higher and more comprehensive, and there is no need to energize the conductive liquid, which is also safer. 2) When the cable body of the present invention is transported in the dye detection liquid in the detection box, the cable body first passes through the first bend, which can bend the cable sheath in the first area so that the crack damage of the cable sheath in the first area is opened at a larger angle, so that the dye detection liquid can fully and quickly enter the crack. Correspondingly, the cable body can sequentially pass through the second bend, the third bend, and the fourth bend, respectively, so that the crack damage of the cable sheath in the second area, the third area, and the fourth area is opened at a larger angle, thereby ensuring that the dye detection liquid can effectively and fully enter the crack damage of the entire cable sheath, eliminating the phenomenon of detection blind spots, and effectively improving detection accuracy and stability. 3) In the process of conveying the cable body, the present invention can sequentially bend the first, second, third, and fourth regions of the cable body using the first, second, third, and fourth bending wheels. The present invention does not require the use of other servo drive devices to bend each region of the cable body. As the cable body is normally conveyed, the effect of synchronously bending each region can be achieved. This not only improves stability but also does not affect the normal conveyance of the cable body, thereby ensuring the efficiency of cable body inspection. 4) In the present invention, based on the setting of the telescopic spring, an elastic force can be given to the adjustment seats on both sides to slide on the guide rod. The directions of the elastic forces on both sides are opposite, and the third bending wheel and the fourth bending wheel can be driven to move in opposite directions through the adjustment seat. Therefore, when the cable body becomes loose during transportation in the detection box, the third bending wheel and the fourth bending wheel can be used to tension the cable body to ensure that when each area of the cable body is bent, the crack can be smoothly opened to a larger angle. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 A schematic diagram of the structure of a cable loss detection device provided by the present invention Figure 1 ; Figure 2 A schematic diagram of the structure of a cable loss detection device provided by the present invention Figure 2 ; Figure 3 A schematic diagram of the top view of a cable loss detection device provided by the present invention; Figure 4 A schematic diagram of the cross-section structure of a cable loss detection device provided by the present invention; Figure 5 A schematic structural diagram of a guide rod in a cable loss detection device provided by the present invention; Figure 6 A schematic structural diagram of a detection ring in a cable loss detection device provided by the present invention; Figure 7 It is a schematic diagram of the structure of each area on the cable body; Figure 8 It is a schematic diagram of the structure when each area on the cable body is bent; Figure 9 Schematic diagram of the crack structure of the cable body.
[0017] Description of reference numerals: 1. Inspection box; 2. Cable body; 3. Feed guide wheel; 4. Scraping trough; 5. Drying box; 6. Scraping cylinder; 101. Inlet trough; 102. Outlet trough; 103. Guide rod; 104. Adjustment seat; 105. Telescopic spring; 301. First bending wheel; 302. Second bending wheel; 303. Third bending wheel; 304. Fourth bending wheel; 305. First discharging guide wheel; 306. Second discharging guide wheel; 501. Inspection ring; 502. Monitoring camera. DETAILED DESCRIPTION
[0018] The specific embodiments of the present invention are described in detail below, but it should be understood that the protection scope of the present invention is not limited by the specific embodiments.
[0019] Example 1
[0020] like Figures 1 to 4 As shown, an embodiment of the present invention provides a cable loss inspection device, including a detection box 1 for storing a dye detection liquid. Specifically, the dye detection liquid of this embodiment can be a non-conductive liquid, for example, transformer oil or silicone oil, which is mixed with a red or green dye to form a dye transformer oil or silicone oil. This embodiment does not limit the specific type of the dye detection liquid, as long as it meets the detection requirements. It should be noted that the color of the dye used in this embodiment needs to be significantly different from the color of the cable sheath to improve the detection effect.
[0021] In this embodiment, an inlet slot 101 for inputting the cable body 2 is provided on one side of the detection box 1, and an outlet slot 102 for outputting the cable body 2 is provided on the other side. Specifically, the cable body 2 to be inspected is input into the detection box 1 through the inlet slot 101, and comes into contact with the dye detection liquid in the detection box 1. The dye detection liquid adheres to the cable body 2, and then the cable body 2 is discharged from the outlet slot 102 to facilitate subsequent inspection.
[0022] In addition, the cable body 2 of this embodiment can be transported by conveying rollers (not shown in the figure) arranged on both sides of the detection box 1 during the process of being input from the inlet groove 101 and output from the outlet groove 102. The technology of using the conveying rollers of this embodiment to transport the cable body 2 is existing technology, and its specific structure and principle will not be elaborated on.
[0023] As a further solution of this embodiment, a scraper cylinder 6 is fixedly arranged on one side of the outlet groove 102 close to the inlet groove 101 for removing the dye detection liquid attached to the surface of the cable body 2. The axial end of the scraper cylinder 6 is provided with a scraper groove 4 for inserting the cable body 2. The cable sheath of the cable body 2 slides and fits with the groove wall of the scraper groove 4. It should be noted that, before the cable body 2 of this embodiment passes through the outlet groove 102, the cable body 2 is first passed through the scraping groove 4 at the axial end of the scraping tube 6, and the dye detection liquid attached to the cable body 2 is scraped off by the groove wall of the scraping groove 4 and falls back into the detection box 1. The scraped dye detection liquid can be reused, which reduces the cost. Accordingly, when the cable body 2 is transported in the dye detection liquid in the detection box 1, the dye detection liquid will not only adhere to the cable sheath of the cable body 2, but also penetrate into the cracks and damages of the cable sheath. Although the dye detection liquid attached to the cable sheath can be scraped off by setting the scraping tube 6, the dye detection liquid that penetrates into the cracks of the cable sheath cannot be scraped off. After the cable body 2 is output from the outlet groove 102, the dye detection liquid located in the crack forms a color mark on the cable sheath of the cable body 2 (please refer to Figure 9), and the presence of cracks on the cable body 2 can be more intuitively seen. Compared with the solution of using conductive liquid detection in the prior art, this embodiment can more accurately locate the cracks on the cable body 2, so as to facilitate immediate repair. At the same time, even if the crack depth is shallow, it will not affect the generation of color marks on the cable body 2. For such shallow cracks, the prior art cannot detect them. The detection accuracy of this embodiment is higher and more comprehensive, and there is no need to energize the conductive liquid, which is also safer.
[0024] In addition, in order to improve the scraping effect of the scraping groove 4 on the dye detection liquid attached to the surface of the cable body 2, a flexible pad can be set on the groove wall of the scraping groove 4, so that it can be in close contact with the surface of the cable body 2, thereby improving the scraping effect.
[0025] Example 2
[0026] Based on Example 1, please refer to Figure 7-Figure 8 When the cable body 2 is transported in the dye detection liquid in the detection box 1, in order to allow the dye detection liquid to fully and quickly enter the cracks, in this embodiment, the cable sheath of the cable body 2 is circumferentially and equiangularly divided into a first area, a second area, a third area and a fourth area, wherein the detection box 1 is sequentially provided with a first bending portion for bending the cable sheath in the first area, a second bending portion for bending the cable sheath in the second area, a third bending portion for bending the cable sheath in the third area and a fourth bending portion for bending the cable sheath in the fourth area; it should be noted that when the cable body 2 is transported in the dye detection liquid in the detection box 1, the cable body 2 first passes through the first bending portion, and the cable sheath in the first area can be bent by the first bending portion, so that the crack damage of the cable sheath in the first area opens at a larger angle (see Figure 8 ), so that the dye detection liquid can fully and quickly enter the crack. Accordingly, the cable body 2 can pass through the second bend, the third bend and the fourth bend in sequence, so that the cracks and damages of the cable sheath in the second area, the third area and the fourth area are opened at a larger angle, thereby ensuring that the dye detection liquid can effectively and fully enter the cracks and damages of the entire cable sheath, without the phenomenon of detection blind spots, and effectively improving the detection accuracy and stability.
[0027] In this embodiment, please refer to Figure 1-Figure 5, a feed guide wheel 3 is rotatably arranged on one side of the inlet groove 101 close to the outlet groove 102, and the first bending portion includes a first bending wheel 301 rotatably arranged on one side of the bottom of the feed guide wheel 3; specifically, after the cable body 2 is horizontally input from the inlet groove 101, it first passes through the feed guide wheel 3 and is vertically transported downward into the dye detection liquid. The feed guide wheel 3 in this embodiment is located above the liquid surface of the dye detection liquid. Therefore, the cable body 2 does not come into contact with the dye detection liquid during the process of being transported toward the feed guide wheel 3. The cable body 2 can enter the dye detection liquid after bypassing the feed guide wheel 3. When the cable body 2 bypasses the first bending wheel 301 for transportation, it bends the first area of the cable body 2 at the wheel body of the first bending wheel 301; Furthermore, a second bending wheel 302 is rotatably arranged on one side of the first bending wheel 301. Specifically, after the first area of the cable body 2 is bent by the first bending wheel 301, the cable body 2 can move upward in the vertical direction to the position of the second bending wheel 302 as the cable body 2 is normally conveyed. Similarly, the second bending wheel 302 can be used to bend the second area on the cable body 2. The third bending portion includes a third bending wheel 303 rotatably arranged on one side of the second bending wheel 302. Specifically, after the second region of the cable body 2 is bent by the second bending wheel 302, the cable body 2 can be moved horizontally to the position of the third bending wheel 303 as the cable body 2 is transported, and the third region on the cable body 2 is bent by the third bending wheel 303. Furthermore, the third bending portion includes a fourth bending wheel 304 rotatably arranged on one side of the third bending wheel 303. Specifically, after the third region of the cable body 2 is bent by the third bending wheel 303, as the cable body 2 is conveyed, it can move horizontally to the position of the fourth bending wheel 304, and the fourth region on the cable body 2 is bent by the fourth bending wheel 304. To sum up, in the process of conveying the cable body 2, this embodiment can sequentially bend the first area, the second area, the third area and the fourth area on the cable body 2 through the first bending wheel 301, the second bending wheel 302, the third bending wheel 303 and the fourth bending wheel 304. This embodiment does not require the use of other servo drive equipment to bend the various areas of the cable body 2. As the cable body 2 is normally conveyed, the effect of synchronously bending each area can be achieved, which not only improves the stability, but also does not affect the normal conveyance of the cable body 2, thereby ensuring the inspection efficiency of the cable body 2.
[0028] In addition, after the cable body 2 is bent by the fourth bending wheel 304, in order to allow the cable body 2 to be smoothly output from the outlet groove 102, in this embodiment, reference can be made to FIG. Figure 3-Figure 4, a first discharging guide wheel 305 is rotatably arranged on one side of the fourth bending wheel 304, and a second discharging guide wheel 306 is rotatably arranged on the first discharging guide wheel 305, and the second discharging guide wheel 306 receives the outlet groove 102; it can be explained that after the cable body 2 is bent by the fourth bending wheel 304, it can be transported to the first discharging guide wheel 305 in the horizontal direction, and after bypassing the first discharging guide wheel 305, it can be transported to the second discharging guide wheel 306 in the vertical direction, and finally horizontally pass through the scraping groove 4 and be transported to the outlet groove 102.
[0029] In order to improve the tension of the cable body 2 when transported in the detection box 1, in this embodiment, reference may be made to Figure 2 and Figure 5 , two sets of guide rods 103 are symmetrically fixed on the top of the detection box 1, and adjustment seats 104 are slidably sleeved on the guide rods 103 on both sides. The third bending wheel 303 and the fourth bending wheel 304 are rotatably arranged on the bottom of the adjustment seat 104, respectively. Among them, a telescopic spring 105 is also provided on the guide rod 103, one end of the telescopic spring 105 is fixed to the adjustment seat 104, and the other end is fixed to the box wall of the detection box 1; It can be explained that, based on the arrangement of the telescopic spring 105, this embodiment can give the adjustment seats 104 on both sides an elastic force to slide on the guide rod 103, and the directions of the elastic forces on both sides are opposite, thereby driving the third bending wheel 303 and the fourth bending wheel 304 to move in opposite directions through the adjustment seat 104 (for details, please refer to Figure 3 ), so when the cable body 2 becomes loose during transportation in the inspection box 1, the cable body 2 can be tensioned by the third bending wheel 303 and the fourth bending wheel 304 to ensure that when each area of the cable body 2 is bent, the crack can be smoothly opened to a larger angle.
[0030] As a further solution of this embodiment, please refer to Figure 1-Figure 3 as well as Figure 6 In order to facilitate automatic monitoring of cracks on the cable body 2 after dyeing, a detection ring 501 is fixedly arranged on one side of the detection box 1. Monitoring cameras 502 corresponding to each area are arranged in a circumferential array on the detection ring 501 to be used for photographing the surface of the cable body 2 delivered thereto. Specifically, after the cable body 2 is output from the outlet slot 102, it enters the detection ring 501. Each group of monitoring cameras 502 photographs each area. The photographed images are compared with the color of the normal cable body 2 to locate the cracks after dyeing. Accordingly, in order to achieve the effect of automatically identifying cracks after dyeing, a colorimeter is integrated into the monitoring camera 502 to judge the color that is different from the cable body 2 itself, thereby automatically identifying cracks after dyeing.
[0031] In addition, a drying box 5 is provided between the outlet slot 102 and the detection ring 501. After the cable body 2 is output from the outlet slot 102, it passes through the drying box 5 and enters the detection ring 501. Specifically, the drying box 5 can dry the cable body 2 to ensure that the surface of the cable body 2 is dry to avoid affecting the subsequent detection accuracy.
[0032] A cable line loss detection method comprises the following steps: See also Figure 1-Figure 3 S1, the cable body 2 to be inspected is input into the inspection box 1 through the inlet slot 101, and is in contact with the dye detection liquid in the inspection box 1; S2, the dyed detection liquid in the detection box 1 adheres to the cable body 2; S3, the cable body 2 is transported through the scraping groove 4 at the axial end of the scraping tube 6. The dye detection liquid attached to the cable body 2 is scraped off through the scraping groove 4 and falls back into the detection box 1. However, the dye detection liquid that has penetrated into the cracks in the cable skin cannot be scraped off; S4, the cable body 2 passing through the scraping groove 4 is output from the outlet groove 102; S5. After the cable body 2 is output, the dye detection liquid in the crack forms a color mark on the cable sheath of the cable body 2 (see Figure 9 ), the cracks can be located by the color marks.
[0033] The above disclosures are only a few specific embodiments of the present invention. However, the embodiments of the present invention are not limited thereto. Any changes that can be conceived by those skilled in the art should fall within the scope of protection of the present invention.
Claims
1. A cable loss detection device, comprising a detection box (1) for storing a dye detection liquid; It is characterized by: An inlet slot (101) for inputting the cable body (2) is provided on one side of the detection box (1), and an outlet slot (102) for outputting the cable body (2) is provided on the other side. A scraper cylinder (6) for removing the dye detection liquid attached to the surface of the cable body (2) is fixedly arranged on one side of the outlet groove (102) close to the inlet groove (101). A scraper groove (4) for inserting the cable body (2) is provided at the axial end of the scraper cylinder (6). The cable sheath of the cable body (2) is slidably fitted with the groove wall of the scraper groove (4).
2. A cable loss detection device according to claim 1, characterized in that: The cable sheath of the cable body (2) is circumferentially and equiangularly divided into a first area, a second area, a third area and a fourth area; The detection box (1) is provided with a first bending portion for bending the cable sheath at the first area, a second bending portion for bending the cable sheath at the second area, a third bending portion for bending the cable sheath at the third area, and a fourth bending portion for bending the cable sheath at the fourth area in sequence.
3. A cable loss detection device according to claim 2, characterized in that: A feed guide wheel (3) is rotatably arranged on one side of the inlet trough (101) facing the outlet trough (102), and the first curved portion comprises a first curved wheel (301) rotatably arranged on one side of the bottom of the feed guide wheel (3).
4. A cable loss detection device according to claim 3, characterized in that: A second bending wheel (302) is rotatably arranged on one side of the first bending wheel (301).
5. A cable loss detection device according to claim 4, characterized in that: The third bending portion comprises a third bending wheel (303) rotatably arranged on one side of the second bending wheel (302).
6. A cable loss detection device according to claim 5, characterized in that: The third bending portion comprises a fourth bending wheel (304) rotatably arranged on one side of the third bending wheel (303).
7. A cable loss detection device according to claim 6, characterized in that: A first discharge guide wheel (305) is rotatably arranged on one side of the fourth bending wheel (304), a second discharge guide wheel (306) is rotatably arranged on the first discharge guide wheel (305), and the second discharge guide wheel (306) receives the outlet slot (102).
8. A cable loss detection device according to claim 6, characterized in that: Two sets of guide rods (103) are symmetrically fixedly arranged on the top of the detection box (1), and adjustment seats (104) are slidably sleeved on the guide rods (103) on both sides, and the third bending wheel (303) and the fourth bending wheel (304) are rotatably arranged on the bottom of the adjustment seat (104); The guide rod (103) is further provided with a telescopic spring (105), one end of the telescopic spring (105) is fixed to the adjustment seat (104), and the other end is fixed to the box wall of the detection box (1).
9. A cable loss detection device according to any one of claim 1, characterized in that: A detection ring (501) is fixedly arranged on one side of the detection box (1), and monitoring cameras (502) corresponding to each area are arranged in a circumferential array on the detection ring (501) for photographing the surface of the delivered cable body (2).
10. A cable line loss detection method, characterized in that: A cable loss detection device according to any one of claims 1 to 9, comprising the following steps: The cable body (2) to be inspected is fed into the inspection box (1) through the inlet slot (101) and brought into contact with the dyed inspection liquid in the inspection box (1); The dyed detection liquid in the detection box (1) is attached to the cable body (2); The cable body (2) is transported through the scraping groove (4) at the axial end of the scraping tube (6), and the dyeing test liquid attached to the cable body (2) is scraped off through the scraping groove (4) and falls back into the test box (1). However, the dyeing test liquid that has penetrated into the cracks in the cable skin cannot be scraped off; The cable body (2) passing through the scraping groove (4) is output from the outlet groove (102); After the cable body (2) is output, the dye detection liquid located in the crack forms a color mark on the cable sheath of the cable body (2), and the crack can be located through the color mark.