Sheath type cable detection device and detection method

Abstract

The invention belongs to the technical field of cable sheath insulation detection, and particularly relates to a sheath type cable detection device and detection method.The sheath type cable detection device comprises a container, a detection device and conductive liquid are arranged in a containing cavity of the container, and the detection device comprises a first rotating disc assembly, a second rotating disc assembly and a frame body; the frame body is at least provided with a group of bending components and a liquid guide mechanism; the first rotating disc assembly comprises a first fixing piece, the first fixing piece is fixedly connected with the container bottom, a rotatable first rotating disc is arranged on one side of the first fixing piece, the second rotating disc assembly comprises a second fixing piece, the second fixing piece is fixedly connected with the container bottom, and the first rotating disc is arranged on one side of the second fixing piece. Conductive liquid sprayed by a spray head of the liquid guide mechanism is jetted to the stretching side opening, so that the speed of the conductive liquid entering the opening is increased, and the detection efficiency and precision of the insulating property of the sheath are improved; no detection blind area exists on the circumferential surface of the cable, and insulation detection is more thorough.

Description

Technical Field

[0001] The present invention relates to the technical field of cable sheath insulation detection, and in particular to a sheath type cable detection device and a detection method. Background Art

[0002] Cable is a wire made of conductive material used to transmit electricity, communication signals or data. When using cables, in order to ensure their normal operation and safe use, various tests and inspections are required. Among them, 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; In order to improve the detection efficiency and accuracy, the conductive liquid can be pressurized by a booster component so that the conductive liquid can enter the tiny cable defect sites. However, the booster will also cause the tiny defects to close under the action of pressure, thus affecting the detection results. Summary of the invention

[0003] The present invention provides a sheath type cable detection device and detection method, which solves the technical problem in the prior art that pressurization may also cause small defects to close under the action of pressure, thereby affecting the detection result.

[0004] The present invention provides the following technical solutions: On the one hand, the present application provides a sheathed cable detection device, including a container, wherein a cable stretching device, an alarm and a conductive liquid are arranged in a accommodating chamber of the container, and the cable stretching device includes a first rotating disk assembly, a second rotating disk assembly and a frame; at least one group of bending components and a liquid guiding mechanism are arranged on the frame; the first rotating disk assembly includes a first fixing member fixedly connected to the bottom of the container, a rotatable first rotating disk is arranged on one side of the first fixing member, the second rotating disk assembly includes a second fixing member fixedly connected to the bottom of the container, a second rotating disk driven to rotate by a motor is arranged on one side of the second fixing member, and ... A frame is fixed between the first rotating disk and the second rotating disk, and the bending assembly is installed on the frame. The bending assembly at least includes a supporting wheel assembly in the middle and limiting wheel assemblies symmetrically arranged on both sides, so that the cable is tensioned into a curved section when passing through the bending assembly, and the nozzle of the liquid guiding mechanism is facing the outer side surface of the tip of the curved section. When the first rotating disk, the second rotating disk and the frame rotate, they are arranged to avoid the container. The first rotating disk, the second rotating disk, the frame and the cable curved section are coaxial, and the first fixing member, the second fixing member, the first rotating disk and the second rotating disk are provided with through holes for the cable to pass through in the axial direction.

[0005] In a possible embodiment, the frame is formed with a channel adapted to the cable bending section, and the inlet and outlet of the channel coincide with the centers of the first through hole and the second through hole, so that the cable bending section can avoid the frame, the first rotating disk, and the second rotating disk when rotating circumferentially.

[0006] In a possible embodiment, the bending assembly includes a support wheel assembly in the middle and a limiting wheel assembly symmetrically arranged on both sides, the support wheel assembly includes a first support wheel and a second support wheel which are laterally symmetrically arranged below both sides of the bending section cable, the first support wheel and the second support wheel are tangent to the bending section cable, and the first support wheel and the second support wheel support the bending section cable outward to form a tip.

[0007] In a possible implementation, a first gear ring is fixed to the first fixing member, a second gear ring is fixed to the second fixing member, the first gear ring and the second gear ring are coaxial with the first rotating disk and the second rotating disk, the wheel axes of the first supporting wheel and the second supporting wheel extend to both sides and are fixedly connected to driven wheels, and the driven wheels on both sides are respectively meshed with the first gear ring and the second gear ring.

[0008] In a possible embodiment, a third gear ring is installed on the second rotating disk, and the third gear ring is meshed with a driving gear. The driving gear is fixed to the end of the motor output shaft. A third through hole for avoiding the motor output shaft is opened on the second mounting disk. The motor is arranged outside the container, and the output shaft of the motor is sealed and rotatably connected to the container.

[0009] In a possible implementation manner, a plurality of bearing seats are disposed on the frame, and both sides of the wheel axles of the first support wheel and the second support wheel are rotatably connected to the frame through the bearing seats.

[0010] In a possible implementation, a liquid guiding mechanism is installed on the frame, and the liquid guiding mechanism includes a water collecting cover and a nozzle facing the cable stretching surface. When the water collecting cover rotates with the frame, the conductive liquid is guided to the nozzle for spraying.

[0011] On the other hand, the present application also provides a sheathed cable detection method, comprising the following steps: Step 1, a cable unwinding mechanism is arranged at the front side of the cable detection device, a cable rewinding mechanism is arranged at the rear side of the cable detection device, and the detected cable is energized at the same time, so that the cable continuously passes through the cable detection device in the energized state; Step 2, start the motor, and drive the bending assembly to rotate circumferentially by the motor, so that the cable passing through forms at least one outward bending section at this location, the tip of the bending section is supported by the support wheel, the outer side of the tip is the stretching side, and the crushing notch on the stretching side opens under the stretching action; Step 3, the bending component rotates circumferentially while driving the liquid guiding mechanism to guide the liquid, thereby spraying the conductive liquid into the opening; Step 4, driving the support wheel to drive the bending section to rotate, and the rotation speed is adapted to the circumferential rotation speed so that the bending section will not be twisted; Step 5: When the bending assembly rotates circumferentially, the reeling mechanism and the unreeling mechanism drive the cable to move forward continuously, and the cable movement distance is adapted to the length of the stretching surface per unit time.

[0012] It is to be understood that the foregoing general description and the following detailed description are exemplary only and are not restrictive of the invention.

[0013] The cable stretching device of the present invention is used to form at least one outward bending section at the location of the cable being transmitted, the tip of the bending section is supported by a support wheel, the outer side of the tip is the stretching side, the broken notch on the stretching side opens under the stretching action, and a liquid guiding mechanism facing the stretching side is also provided on the outer side of the bending section, the conductive liquid sprayed by the nozzle of the liquid guiding mechanism is sprayed toward the opening of the stretching side, thereby accelerating the speed at which the conductive liquid enters the opening, thereby improving the detection efficiency and accuracy of the insulation performance of the sheath; And by continuously conveying the cable and rotating synchronously, a continuous spiral stretching surface is formed. By adjusting the coverage length of the nozzle, the width of the spiral surface can be adjusted. By adjusting the cable transmission speed, the formed spiral surface can be bent to cover the circumferential surface of the cable, so that there is no blind spot on the circumferential surface of the cable, and the insulation detection is more thorough. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 A schematic diagram of the internal structure of a sheathed cable detection device provided by an embodiment of the present invention; Figure 2 A schematic structural diagram of a cable stretching device of a sheath type cable detection device provided in an embodiment of the present invention; Figure 3 A schematic diagram of the explosion structure of a cable stretching device of a sheath type cable detection device provided by an embodiment of the present invention; Figure 4 This is one of the structural schematic diagrams of a first rotating disk assembly of a sheath type cable detection device provided by an embodiment of the present invention; Figure 5 A second structural schematic diagram of a first rotating disk assembly of a sheathed cable detection device provided by an embodiment of the present invention; Figure 6 One of the structural schematic diagrams of the second rotating disk assembly of a sheath type cable detection device provided by an embodiment of the present invention; Figure 7A second structural schematic diagram of a second rotating disk assembly of a sheath type cable detection device provided by an embodiment of the present invention; Figure 8 A schematic structural diagram of a frame of a sheathed cable detection device provided by an embodiment of the present invention; Fig. 9 A schematic diagram of the exploded structure of a frame and a bending component of a sheath type cable detection device provided by an embodiment of the present invention; Fig.10 This is one of the structural schematic diagrams of a bending component of a sheathed cable detection device provided in an embodiment of the present invention; Fig.11 A second structural schematic diagram of a bending assembly of a sheathed cable detection device provided in an embodiment of the present invention; Fig.12 A schematic structural diagram of a support wheel assembly of a sheath type cable detection device provided by an embodiment of the present invention; Fig.13 A schematic structural diagram of a limiting wheel assembly of a sheath type cable detection device provided by an embodiment of the present invention; Fig.14 A schematic structural diagram of a cable bending section of a sheath type cable detection device provided by an embodiment of the present invention; Fig.15 This is one of the structural schematic diagrams of a liquid guiding mechanism of a sheath type cable detection device provided in an embodiment of the present invention; Fig.16 This is a second structural schematic diagram of a liquid guiding mechanism of a sheathed cable detection device provided in an embodiment of the present invention.

[0015] Reference numerals: 1. Container; 2. Guide wheel; 3. Cable stretching device; 4. First leg support; 5. First rotating disk assembly; 501. First gear ring; 502. First mounting disk; 503. First bearing; 504. First rotating disk; 505. First through hole; 506. First extension tube; 6. frame; 601. top mounting plate; 602. third mounting seat; 603. fourth mounting seat; 604. bottom mounting plate; 605. arched portion; 606. straight portion; 607. arched connecting rod; 608. transverse mounting hole; 7. Liquid guiding mechanism; 701. Water collecting cover; 702. Opening side of water collecting cover; 703. Tube body; 704. Sprinkler; 705. Strip nozzle; 8. Second rotating disk assembly; 801. Second rotating disk; 802. Third extension cylinder; 803. Third gear ring; 804. Second bearing; 805. Second extension cylinder; 806. Second mounting disk; 807. Second gear ring; 808. Motor output shaft; 809. Driving gear; 9. cable; 901. curved section; 902. tip; 903. stretching surface; 10. Bending assembly; 101. Support wheel assembly; 102. Position limiting wheel assembly; 1001. First mounting seat; 1002. First driven wheel; 1003. Second driven wheel; 1004. First bearing seat; 1005. First supporting wheel; 1006. Second supporting wheel; 1007. Second bearing seat; 1008. First position limiting wheel; 1009. Second position limiting wheel; 1010. Second mounting seat; 11. Second leg support; 12. Motor. DETAILED DESCRIPTION

[0016] The embodiments of the present invention are described below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0017] During the cable 9 detection process, a cable unwinding mechanism is set at the front side of the cable detection device, and a cable winding mechanism is set at the rear side of the cable detection device. At the same time, the detected cable 9 is energized so that the cable 9 continues to pass through the cable detection device in the energized state.

[0018] Furthermore, the present application proposes a sheathed cable detection device, including a container 1, a receiving chamber is provided in the container 1, a conductive liquid is contained in the receiving chamber, a cable stretching device 3 is also installed in the receiving chamber, and the cable stretching device 3 is submerged below the conductive liquid level during operation. Figure 1 As shown, the container 1 is rectangular, and two wire wheels 2 are respectively arranged on the left and right inner walls of the container 1 to convert the cable 9 entering from the top of the container 1 from horizontal entry to be transmitted downward along the inner wall, and then horizontally transmitted into one side of the cable stretching device 3, and then extended from the other side of the cable stretching device 3. The extended cable 9 is transmitted upward along the inner wall on the other side, and finally led out from the top of the container 1. The extension direction of the cable 9 horizontally entering and passing through the cable stretching device 3 in the container 1 is the horizontal direction, and the horizontal and vertical directions are the longitudinal directions.

[0019] like Figure 1-3 , Fig.14As shown, the cable stretching device 3 is used to form at least one outward bending section 901 of the cable 9 passing through there, the tip 902 of the bending section 901 is supported by the support wheel, the outer side of the tip 902 is the stretching side, the broken notch on the stretching side opens under the stretching action, and the outer side of the bending section 901 is also provided with a liquid guiding mechanism 7 facing the stretching side, the nozzle 704 of the liquid guiding mechanism 7 sprays the conductive liquid toward the stretching side opening, thereby accelerating the speed of the conductive liquid entering the opening, thereby improving the detection efficiency and accuracy of the insulation performance of the sheath; And by continuously conveying the cable 9, a continuous spiral stretching surface is formed by synchronous rotation. By adjusting the coverage length of the nozzle 704, the width of the spiral surface can be adjusted. By adjusting the transmission speed of the cable 9, the formed spiral surface can be bent to cover the circumferential surface of the cable 9, so that there is no detection blind spot on the circumferential surface of the cable 9, and the insulation detection is more thorough.

[0020] In addition, the cable stretching device 3 drives the curved section 901 to rotate circumferentially, and the axis of the circumferential rotation coincides with the transmission direction of the cable 9, and during the rotation process, the support wheel drives the curved section 901 to rotate, and the rotation speed is adapted to the circumferential rotation speed, so that the curved section 901 of the cable 9 will not be twisted, and when the curved section 901 of the cable 9 rotates circumferentially, the cable 9 is continuously conveyed and synchronously rotated to form a continuous spiral stretching surface, and the formed spiral surface can be bent to cover the circumferential surface of the cable 9, so that the entire circumferential surface of the cable 9 is stretched. At the broken notch, the broken notch will open under the action of tension, and the liquid guiding mechanism 7 can spray the conductive liquid into the opening, so that the conductive liquid is connected to the internal current of the cable 9, and the alarm set in the conductive liquid triggers the alarm, and at the same time, the cable winding mechanism, the cable unwinding mechanism and the motor 12 are turned off. At this time, the position of the broken notch is on the outer surface of the tip 902; if there is no notch on the circumferential surface of the cable 9, it will continue to move forward under the action of the unwinding mechanism and the winding mechanism, and the liquid guiding mechanism 7 will form at least one spiral spraying track on the cable 9, and the spraying track covers the entire circumferential surface of the cable 9.

[0021] Furthermore, a sheathed cable detection device includes a first rotating disk assembly 5, a second rotating disk assembly 8, and a frame 6; at least one set of bending assemblies 10 and a liquid guide mechanism 7 are arranged on the frame 6; the first rotating disk assembly 5 includes a first fixing member, the first fixing member is fixedly connected to the bottom surface of the container 1, and a rotatable first rotating disk 504 is arranged on one side of the first fixing member; the second rotating disk assembly 8 includes a second fixing member, the second fixing member is fixedly connected to the bottom surface of the container 1, and a second rotating disk 801 driven to rotate by a motor 12 is arranged on one side of the second fixing member; the frame 6 is fixed between the first rotating disk 504 and the second rotating disk 801, and the bending assembly 10 includes at least Two limiting wheels and a set of supporting wheels are provided so that the cable 9 is tensioned into a curved section 901 when passing through the curved component 10. The nozzle 704 of the liquid guiding mechanism 7 is directly opposite to the outer side of the tip 902 of the curved section 901, and passes through the first rotating disk 504. The cable 9 of the second rotating disk assembly 8 only contacts the curved component 10. The first rotating disk 504, the second rotating disk 801 and the frame 6 are arranged to avoid the container 1. The first rotating disk 504, the second rotating disk 801, the frame 6 and the curved section 901 of the cable 9 are coaxial. The first fixing member, the second fixing member, the first rotating disk 504 and the second rotating disk 801 are provided with through holes in the axial direction for the cable 9 to pass through.

[0022] Specifically, in the present application, only one set of cable 9 bending components 10 is provided, and the cable 9 in the frame 6 only forms a bending section 901, and the first rotating disk component 5 includes a first fixing member, and the lower side of the first fixing member is fixedly connected to the bottom of the container 1, and the first fixing member is provided with a first through hole 505 for the cable 9 to pass through, and a first extension tube 506 for installing the first rotating disk 504 is fixed at the first through hole 505, and the hollow part of the first extension tube 506 is connected to the first through hole 505, and a first gear ring 501 is also fixed on the first fixing member, and the first gear ring 501 is coaxial with the first extension tube 506, and a first bearing 503 is installed on the outer side of the first extension tube 506, and a first rotating disk 504 is installed on the outer side of the first bearing 503, so that the first rotating disk 504 can rotate on the outer side of the first extension tube 506.

[0023] like Figure 6-7As shown, the second rotating disk assembly 8 includes a second fixing member, the lower side of which is fixedly connected to the bottom of the container 1, the second fixing member is provided with a second through hole for the cable 9 to pass through, a second extension tube 805 for installing the second rotating disk 801 is fixed at the second through hole, the hollow portion of the second extension tube 805 is connected to the second through hole, a second bearing 804 is installed on the second extension tube 805, and the second rotating disk 801 is rotatably installed outside the second bearing 804 so that the second rotating disk 801 can rotate outside the second extension tube 805, a second gear ring 807 is fixed on the second fixing member, the second gear ring 807 is coaxial with the second extension tube 805, and a frame 6 is fixed between the first rotating disk 504 and the second rotating disk 801.

[0024] Specifically, Figure 4-Figure 5 As shown, in the present application, the first fixing member is set to be a disc-shaped first mounting plate 502, and the second fixing member is set to be a disc-shaped second mounting plate 806 to reduce material costs, and the outer edge of the first mounting plate 502 is co-centered with the first through hole 505, and the outer edge of the second mounting plate 806 is co-centered with the second through hole. In order to facilitate the installation of the first gear ring 501, the outer diameter of the first mounting plate 502 is adapted to the inner diameter of the first gear ring 501, so that the first gear ring 501 is fixed to the first mounting plate 502. The outer edge of the plate 502, in order to facilitate the installation of the second toothed ring 807, the outer diameter of the second mounting plate 806 is adapted to the inner diameter of the second toothed ring 807, so that the second toothed ring 807 is fixed to the outer edge of the second mounting plate 806, the left side of the first mounting plate 502 is fixedly connected to the first foot support 4 by bolts, the bottom of the first foot support 4 is fixedly connected to the bottom of the container 1, the right side of the second mounting plate 806 is fixedly connected to the second foot support 11 by bolts, and the bottom of the second foot support 11 is fixedly connected to the bottom of the container 1.

[0025] Furthermore, a third gear ring 803 is installed on the second rotating disk 801, and the third gear ring 803 is meshed with a driving gear 809. The driving gear 809 is fixed to the end of the motor output shaft 808. A third through hole for avoiding the motor output shaft 808 is opened on the second mounting disk 806. The motor 12 is arranged outside the container 1, and the output shaft of the motor 12 is sealed and rotatably connected to the container 1.

[0026] Specifically, a third extension tube 802 facing right is provided on the outer side of the second rotating disk 801, and a third gear ring 803 is fixed on the inner wall of the third extension tube 802. The output shaft of the motor passes through the second mounting disk 806 and is fixedly connected to the driving gear 809, and the driving gear 809 is meshed with the third gear ring 803, so that when the output shaft of the motor rotates, the third gear ring 803 can be driven to rotate through the driving gear 809. The rotation of the third gear ring 803 will drive the second rotating disk 801 to rotate around the axis, and the second rotating disk 801 will drive the first rotating disk 504 to rotate around the axis through the frame 6.

[0027] Further, such as Figure 8 As shown, the frame 6 is formed with a channel adapted to the bending section 901 of the cable 9, and the left side of the frame 6 is fixedly connected to the first rotating disk 504, and the right side is fixedly connected to the second rotating disk 801, and the centers of the channel inlet and outlet coincide with the centers of the first through hole 505 and the second through hole, so that the cable bending section 901 only contacts the bending component 10 when it rotates circumferentially.

[0028] Specifically, Fig. 9 As shown, in the present application, the frame 6 is composed of four mutually parallel arched connecting rods 607, and the four arched connecting rods 607 form a continuous rectangular channel. The arched connecting rods 607 include an arched portion 605 in the middle and straight portions 606 on both sides. A top mounting plate 601 is arranged in the middle of the upper arched connecting rods 607, and a bottom mounting plate 604 is arranged in the middle of the lower arched connecting rods 607. A third mounting seat 602 on the front side and a fourth mounting seat 603 on the rear side are fixed between the top mounting plate 601 and the bottom mounting plate 604. A space for the cable 9 to pass through is reserved between the third mounting seat 602 and the fourth mounting seat 603, and the third mounting seat 602 and the fourth mounting seat 603 are parallel to each other. A transverse through-hole is provided on the third mounting seat 602 and the fourth mounting seat 603. The mounting hole 608, the axle of the first supporting wheel 1005 passes through the transverse mounting hole 608 of the third mounting seat 602, the axle of the second supporting wheel 1006 passes through the transverse mounting hole 608 of the fourth mounting seat 603, and the four mutually parallel arch connecting rods 607 can be fixedly connected into a whole through the top mounting plate 601, the bottom mounting plate 604, the third mounting seat 602 and the fourth mounting seat 603; the first mounting seat 1001 and the second mounting seat 1010 are installed on the straight portion 606, and the first mounting seat 1001 and the second mounting seat 1010 are provided with longitudinal mounting holes running longitudinally therethrough, the axle of the first limiting wheel 1008 passes through the longitudinal mounting hole of the first mounting seat 1001, and the axle of the second limiting wheel 1009 passes through the longitudinal mounting hole of the second mounting seat 1010.

[0029] Specifically, the first mounting seat 1001 and the second mounting seat 1010 have the same structure, and both include first mounting plates arranged in parallel front and back, the upper portion of the first mounting plate on the front side is fixedly connected to the arched connecting rod 607 on the upper portion of the front side, the lower portion of the first mounting plate on the front side is fixedly connected to the arched connecting rod 607 on the lower portion of the front side, the upper portion of the first mounting plate on the rear side is fixedly connected to the arched connecting rod 607 on the upper portion of the rear side, and the lower portion of the first mounting plate on the rear side is fixedly connected to the arched connecting rod 607 on the lower portion of the rear side, a longitudinal mounting hole is provided on the first mounting plates arranged in parallel front and back, a limiting wheel is arranged between the first mounting plates arranged in parallel front and back, and the wheel axle of the limiting wheel penetrates into the longitudinal mounting hole. The third mounting seat 602 and the fourth mounting seat 603 have the same structure and both include second mounting plates arranged in parallel on the left and the right. The upper end of the second mounting plate on the left is fixedly connected to the left side of the top mounting plate 601, the lower end of the second mounting plate on the left is fixedly connected to the left side of the bottom mounting plate 604, the upper end of the second mounting plate on the right is fixedly connected to the right side of the top mounting plate 601, the lower end of the second mounting plate on the right is fixedly connected to the right side of the bottom mounting plate 604, and a transverse mounting hole 608 that runs horizontally through the second mounting plates arranged in parallel on the left and the right is opened. The support wheel is arranged between the second mounting plates arranged in parallel on the left and the right, and the wheel axle of the support wheel extends into the transverse mounting hole 608.

[0030] Further, such as Figure 10-13 As shown, the bending assembly 10 includes a supporting wheel assembly 101 in the middle and a limiting wheel assembly 102 symmetrically arranged on both sides. The supporting wheel assembly 101 includes a first supporting wheel 1005 and a second supporting wheel 1006 which are laterally symmetrically arranged below both sides of the bending section 901 cable 9. The first supporting wheel 1005 and the second supporting wheel 1006 are tangent to the bending section 901 of the cable 9. The first supporting wheel 1005 and the second supporting wheel 1006 support the bending section 901 of the cable 9 outward to form a tip portion 902. The limiting wheel assembly 102 includes a first mounting seat 1001 and a second mounting seat 1010 which are fixedly mounted on the frame 6. The first mounting seat 1001 and the second mounting seat 1009 are rotatably mounted with a first limiting wheel 1008 and a second limiting wheel 1009, respectively. Fig.13 As shown, by setting the limiting wheel, the inlet and outlet ends of the cable 9 of the curved section 901 are both located on the axis of circumferential rotation.

[0031] Furthermore, the wheel axes of the first support wheel 1005 and the second support wheel 1006 extend to both sides and are fixedly connected to the driven wheels, and the driven wheels on both sides are respectively meshed with the first gear ring 501 and the second gear ring 807.

[0032] Specifically, the wheel axis of the first support wheel 1005 extends to both sides and is fixedly connected to the first driven wheel 1002, the first driven wheel 1002 on the left side is meshed with the first gear ring 501, and the first driven wheel 1002 on the right side is meshed with the second gear ring 807; the wheel axis of the second support wheel 1006 extends to both sides and is fixedly connected to the second driven wheel 1003, the second driven wheel 1003 on the left side is meshed with the first gear ring 501, and the second driven wheel 1003 on the right side is meshed with the second gear ring 807.

[0033] Furthermore, a plurality of bearing seats are provided on the frame body 6, the number of the bearing seats is adapted to the axles of the first support wheel 1005 and the second support wheel 1006, and both sides of the axles of the first support wheel 1005 and the second support wheel 1006 are rotatably connected to the frame body 6 through the bearing seats.

[0034] Specifically, in the present application, a first bearing seat 1004 and a second bearing seat 1007 are installed on the frame body 6. The first bearing seat 1004 and the second bearing seat 1007 are located on both sides of the first support wheel 1005 and the second support wheel 1006. The first bearing seat 1004 and the second bearing seat 1007 have the same structure and both include a base fixed on the frame body 6. Two bearings are fixed on the base. The two bearings are rotatably connected to the axles of the first support wheel 1005 and the second support wheel 1006.

[0035] Further, such as Figure 15-16 As shown, a liquid guiding mechanism 7 is installed on the frame 6, and the liquid guiding mechanism 7 includes a water collecting cover 701 and a nozzle 704 facing the stretching surface 903 of the cable 9. When the water collecting cover 701 rotates with the frame 6, the conductive liquid is guided to the nozzle 704 for spraying.

[0036] Specifically, the water collecting cover 701 is fixed on the top mounting plate 601, and the opening side 702 of the water collecting cover is consistent with the rotation direction of the frame 6. The water collecting cover 701 is a conical structure. The bottom of the water collecting cover 701 is connected to a tube body 703, so that the conductive liquid can be smoothly guided to the tube body 703. The tube body 703 passes through the top mounting plate 601 and is connected to the nozzle 704. The lower side surface of the nozzle 704 is an arc surface that is adapted to the stretching surface 903 of the cable 9, and a plurality of strip nozzles 705 are provided on the arc surface.

[0037] The above are only specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art can easily think of changes or substitutions within the technical scope disclosed by the present invention, which should be included in the protection scope of the present invention; the embodiments of the present invention and the features in the embodiments can be combined with each other without conflict. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. A sheathed cable detection device, characterized in that: The invention comprises a container, wherein a cable stretching device, an alarm and a conductive liquid are arranged in a receiving cavity of the container, wherein the cable stretching device comprises a first rotating disk assembly, a second rotating disk assembly and a frame; wherein at least one group of bending assemblies and a liquid guiding mechanism are arranged on the frame; wherein the first rotating disk assembly comprises a first fixing member fixedly connected to the bottom of the container, wherein a rotatable first rotating disk is arranged on one side of the first fixing member, wherein the second rotating disk assembly comprises a second fixing member fixedly connected to the bottom of the container, wherein a second rotating disk driven to rotate by a motor is arranged on one side of the second fixing member, wherein a frame is fixed between the first rotating disk and the second rotating disk, wherein the bending assembly is installed on the frame, wherein the bending assembly comprises at least a supporting wheel assembly in the middle and a limiting wheel assembly symmetrically arranged on both sides, so that the cable is tensioned into a curved section when passing through the bending assembly, wherein the nozzle of the liquid guiding mechanism is directly opposite to the outer side surface of the tip of the curved section, wherein the first rotating disk, the second rotating disk and the frame are arranged to avoid the container when rotating, wherein the first rotating disk, the second rotating disk, the frame and the cable curved section are coaxial, and the first fixing member, the second fixing member, the first rotating disk and the second rotating disk are provided with through holes for the cable to pass through in the axial direction.

2. A sheathed cable detection device according to claim 1, characterized in that: The frame is formed with a channel adapted to the cable bending section, and the inlet and outlet of the channel coincide with the centers of the first through hole and the second through hole, so that the cable bending section avoids the frame, the first rotating disk and the second rotating disk when rotating circumferentially.

3. A sheathed cable detection device according to claim 2, characterized in that: The bending assembly includes a support wheel assembly in the middle and a limiting wheel assembly symmetrically arranged on both sides, the support wheel assembly includes a first support wheel and a second support wheel laterally symmetrically arranged below both sides of the bending section cable, the first support wheel and the second support wheel are tangent to the bending section cable, and the first support wheel and the second support wheel support the bending section cable outward to form a tip.

4. A sheathed cable detection device according to claim 1, characterized in that: A first gear ring is also fixed on the first fixing member, and a second gear ring is fixed on the second fixing member. The first gear ring and the second gear ring are coaxial with the first rotating disk and the second rotating disk. The wheel axes of the first supporting wheel and the second supporting wheel extend to both sides and are fixedly connected to the driven wheels. The driven wheels on both sides are respectively meshed with the first gear ring and the second gear ring.

5. A sheathed cable detection device according to claim 4, characterized in that: A third gear ring is installed on the second rotating disk, and the third gear ring is meshed with a driving gear. The driving gear is fixed to the end of the motor output shaft. A third through hole for avoiding the motor output shaft is opened on the second mounting disk. The motor is arranged outside the container, and the output shaft of the motor is sealed and rotatably connected to the container.

6. A sheathed cable detection device according to claim 4, characterized in that: The frame is provided with a plurality of bearing seats, and both sides of the wheel axles of the first supporting wheel and the second supporting wheel are rotatably connected to the frame through the bearing seats.

7. A sheathed cable detection device according to claim 1, characterized in that: The frame is provided with a liquid guiding mechanism, which comprises a water collecting cover and a nozzle facing the cable stretching surface. When the water collecting cover rotates with the frame, the conductive liquid is guided to the nozzle for spraying.

8. A sheathed cable detection method, based on the cable detection device according to any one of claims 1 to 7, comprising the following steps: Step 1, a cable unwinding mechanism is arranged at the front side of the cable detection device, a cable rewinding mechanism is arranged at the rear side of the cable detection device, and the detected cable is energized at the same time, so that the cable continuously passes through the cable detection device in the energized state; Step 2, start the motor, and drive the bending assembly to rotate circumferentially by the motor, so that the cable passing through forms at least one outward bending section at this location, the tip of the bending section is supported by the support wheel, the outer side of the tip is the stretching side, and the crushing notch on the stretching side opens under the stretching action; Step 3, the bending component rotates circumferentially while driving the liquid guiding mechanism to guide the liquid, thereby spraying the conductive liquid into the opening; Step 4, driving the support wheel to drive the bending section to rotate, and the rotation speed is adapted to the circumferential rotation speed so that the bending section will not be twisted; Step 5: When the bending assembly rotates circumferentially, the reeling mechanism and the unreeling mechanism drive the cable to move forward continuously, and the cable movement distance is adapted to the length of the stretching surface per unit time.

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