A sheathed cable detection device and a detection method

Abstract

The present invention belongs to the technical field of cable sheath insulation detection, and in particular relates to a sheath-type cable detection device and a detection method, including a container. A detection device and a conductive liquid are arranged in the accommodating cavity of the container. The detection device includes a first rotating disc assembly, a second rotating disc assembly, and a frame body. At least one set of bending assemblies and a liquid guiding mechanism are arranged on the frame body. The first rotating disc assembly includes a first fixing member, which is fixedly connected to the bottom of the container. A rotatable first rotating disc is arranged on one side of the first fixing member. The second rotating disc assembly includes a second fixing member, which is fixedly connected to the bottom of the container. In the present invention, the conductive liquid sprayed by the nozzle of the liquid guiding mechanism is sprayed towards the stretching-side opening, thereby accelerating the speed of the conductive liquid entering the opening, and thus improving the detection efficiency and accuracy of the sheath insulation performance; it can ensure that there is no detection blind area on the circumferential surface of the cable, and the insulation detection is more thorough.

Description

Technical Field

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

[0002] A cable is a wire made of conductive material for transmitting electric power, communication signals or data. When using a cable, various tests and inspections are required to ensure its normal operation and safe use. Among them, when judging whether the outer skin of the cable is damaged and the insulation property, generally, the cable is immersed in a conductive liquid to energize the inside of the cable, and then it is detected whether the water tank is charged to obtain the detection result;

[0003] In order to improve the detection efficiency and accuracy, the conductive liquid can be pressurized through a pressurizing component so that the conductive liquid can enter the tiny cable defect parts. However, the pressurization will also cause the tiny defects to close under the pressure, thus affecting the detection result. Summary of the Invention

[0004] The present invention provides a sheath-type cable detection device and a detection method, which solve the technical problem in the prior art that the pressurization will also cause the tiny defects to close under the pressure, thus affecting the detection result.

[0005] The present invention provides the following technical solutions:

[0006] On the one hand, the present application provides a sheath-type cable detection device, including a container. A cable stretching device, an alarm and a conductive liquid are arranged in the accommodating cavity of the container. The cable stretching device includes a first rotating disk assembly, a second rotating disk assembly and a frame. At least one set of bending assembly 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 by a motor to rotate is arranged on one side of the second fixing member. A frame is fixed between the first rotating disk and the second rotating disk. The bending assembly is installed on the frame. The bending assembly at least includes a support wheel assembly in the middle and limiting wheel assemblies symmetrically arranged on both sides, so that the cable is tensioned into a bent section when passing through the bending assembly. The nozzle of the liquid guiding mechanism faces the outer side of the tip of the bent 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 bent section are coaxial. Through holes for the cable to pass through are formed in the first fixing member, the second fixing member, the first rotating disk and the second rotating disk in the axial direction.

[0007] In a possible implementation manner, a channel adapted to the cable bending section is formed on the frame body, and the inlets and outlets of the channel coincide with the centers of the first through hole and the second through hole, so that when the cable bending section rotates circumferentially, it is arranged to avoid the frame body, the first rotating disc, and the second rotating disc.

[0008] In a possible implementation manner, the bending assembly includes a support wheel assembly in the middle and limiting wheel assemblies symmetrically arranged on both sides. The support wheel assembly includes a first support wheel and a second support wheel symmetrically arranged horizontally below both sides of the cable in the bending section. The first support wheel and the second support wheel are tangent to the cable in the bending section, and the first support wheel and the second support wheel support the cable in the bending section outward to form a pointed end.

[0009] In a possible implementation manner, a first toothed ring is further fixed on the first fixing member, and a second toothed ring is fixed on the second fixing member. The first toothed ring and the second toothed ring are coaxial with the first rotating disc and the second rotating disc. The wheel shafts of the first support wheel and the second support wheel extend to both sides and are fixedly connected to driven wheels. The driven wheels on both sides are respectively meshed with the first toothed ring and the second toothed ring.

[0010] In a possible implementation manner, a third toothed ring is installed on the second rotating disc. The third toothed ring is meshed with a driving gear. The driving gear is fixed at the end of the output shaft of the motor. A third through hole for avoiding the output shaft of the motor is formed on the second mounting disc. The motor is arranged outside the container, and the output shaft of the motor is rotatably and sealingly connected to the container.

[0011] In a possible implementation manner, a plurality of bearing seats are arranged on the frame body. Both sides of the wheel shafts of the first support wheel and the second support wheel are rotatably connected to the frame body through the bearing seats.

[0012] In a possible implementation manner, a liquid guiding mechanism is installed on the frame body. The liquid guiding mechanism includes a water collecting cover and a spray head facing the cable stretching surface. When the water collecting cover rotates with the frame body, the conductive liquid is guided to the spray head and sprayed out.

[0013] On the other hand, the present application also provides a sheathed cable detection method, including the following steps:

[0014] Step 1, a cable unwinding mechanism is arranged on the front side of the cable detection device, a cable winding mechanism is arranged on the rear side of the cable detection device, and at the same time, the cable to be detected is electrified, so that the cable continuously passes through the cable detection device in an electrified state.

[0015] Step 2: Start the motor to drive the bending assembly to rotate circumferentially, so that at least one outward bending section is formed in the cable passing through the transmission. The tip of the bending section is supported by the supporting wheel, the outer side of the tip is the stretching side, and the breaking notch on the stretching side opens under the stretching action.

[0016] Step 3: While the bending assembly rotates circumferentially, drive the liquid guiding mechanism to guide the liquid, so as to spray the conductive liquid into the opening.

[0017] Step 4: Drive the supporting wheel to drive the bending section to rotate self - rotatably, and the self - rotation speed is adapted to the circumferential rotation speed, so that the bending section will not be twisted.

[0018] Step 5: When the bending assembly rotates circumferentially, the winding mechanism and the unwinding mechanism drive the cable to move forward continuously, and the moving distance of the cable is adapted to the length of the stretching surface per unit time.

[0019] It should be understood that the above general description and the following detailed description are only exemplary and do not limit the present invention.

[0020] In the present invention, the cable stretching device is used to form at least one outward bending section in the cable passing through the transmission. The tip of the bending section is supported by the supporting wheel, the outer side of the tip is the stretching side, and the breaking notch on the stretching side opens under the stretching action. Moreover, a liquid guiding mechanism facing the stretching side is arranged outside the bending section, and the conductive liquid sprayed by the nozzle of the liquid guiding mechanism is shot at the opening of the stretching side, so as to accelerate the speed of the conductive liquid entering the opening, thereby improving the detection efficiency and accuracy of the sheath insulation performance.

[0021] And by continuously conveying the cable, a continuous spiral stretching surface is formed synchronously by rotation. By adjusting the covering 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 detection blind area on the circumferential surface of the cable, and the insulation detection is more thorough. Brief Description of the Drawings

[0022] Figure 1 It is a schematic internal structure diagram of a sheath - type cable detection device provided by an embodiment of the present invention;

[0023] Figure 2 It is a schematic structure diagram of a cable stretching device of a sheath - type cable detection device provided by an embodiment of the present invention;

[0024] Figure 3 It is an exploded structure schematic diagram of a cable stretching device of a sheath - type cable detection device provided by an embodiment of the present invention;

[0025] Figure 4One of the schematic structural diagrams of the first rotating disk assembly of a sheath-type cable detection device provided by an embodiment of the present invention;

[0026] Figure 5 Another schematic structural diagram of the first rotating disk assembly of a sheath-type cable detection device provided by an embodiment of the present invention;

[0027] Figure 6 One of the schematic structural diagrams of the second rotating disk assembly of a sheath-type cable detection device provided by an embodiment of the present invention;

[0028] Figure 7 Another schematic structural diagram of the second rotating disk assembly of a sheath-type cable detection device provided by an embodiment of the present invention;

[0029] Figure 8 Schematic structural diagram of the frame of a sheath-type cable detection device provided by an embodiment of the present invention;

[0030] Figure 9 Schematic explosion structure diagram of the frame and bending assembly of a sheath-type cable detection device provided by an embodiment of the present invention;

[0031] Figure 10 One of the schematic structural diagrams of the bending assembly of a sheath-type cable detection device provided by an embodiment of the present invention;

[0032] Figure 11 Another schematic structural diagram of the bending assembly of a sheath-type cable detection device provided by an embodiment of the present invention;

[0033] Figure 12 Schematic structural diagram of the support wheel assembly of a sheath-type cable detection device provided by an embodiment of the present invention;

[0034] Figure 13 Schematic structural diagram of the limit wheel assembly of a sheath-type cable detection device provided by an embodiment of the present invention;

[0035] Figure 14 Schematic structural diagram of the cable bending section of a sheath-type cable detection device provided by an embodiment of the present invention;

[0036] Figure 15 One of the schematic structural diagrams of the liquid guiding mechanism of a sheath-type cable detection device provided by an embodiment of the present invention;

[0037] Figure 16 Another schematic structural diagram of the liquid guiding mechanism of a sheath-type cable detection device provided by an embodiment of the present invention.

[0038] Reference numerals:

[0039] 1. Container; 2. Cable pulley; 3. Cable stretching device; 4. First footrest;

[0040] 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 cylinder;

[0041] 6. Frame body; 601. Top mounting plate; 602. Third mounting seat; 603. Fourth mounting seat; 604. Bottom mounting plate; 605. Arch part; 606. Straight part; 607. Arch connecting rod; 608. Transverse mounting hole;

[0042] 7. Liquid guiding mechanism; 701. Water collecting cover; 702. Open side of water collecting cover; 703. Pipe body; 704. Sprinkler head; 705. Strip-shaped nozzle;

[0043] 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;

[0044] 9. Cable; 901. Bending section; 902. Tip end; 903. Stretching surface;

[0045] 10. Bending assembly; 101. Support wheel assembly; 102. Limiting wheel assembly; 1001. First mounting seat; 1002. First driven wheel; 1003. Second driven wheel; 1004. First bearing seat; 1005. First support wheel; 1006. Second support wheel; 1007. Second bearing seat; 1008. First limiting wheel; 1009. Second limiting wheel; 1010. Second mounting seat;

[0046] 11. Second footrest; 12. Motor. Detailed implementation mode

[0047] The embodiments of the present invention will be described below with reference to the accompanying drawings in the embodiments of the present invention.

[0048] During the detection of the cable 9, a cable unwinding mechanism is arranged on the front side of the cable detection device, a cable winding mechanism is arranged on the rear side of the cable detection device, and the detected cable 9 is energized at the same time, so that the cable 9 continuously passes through the cable detection device in the energized state.

[0049] Furthermore, the present application proposes a sheathed cable detection device, including a container 1. An accommodation cavity is arranged in the container 1, a conductive liquid is accommodated in the accommodation cavity, and a cable stretching device 3 is also installed in the accommodation cavity. During operation, the cable stretching device 3 is submerged below the liquid level of the conductive liquid, as Figure 1As shown, the container 1 is rectangular. On the left and right inner walls of the container 1, two wire wheels 2 are respectively arranged to change the cable 9 entering from above the container 1 from horizontal entry to downward transmission along the inner wall. Subsequently, after horizontally transmitting into one side of the cable stretching device 3 and then extending out from the other side of the cable stretching device 3, the extended cable 9 transmits upward along the other inner wall and finally is exported from above the container 1. Taking the extension direction of the cable 9 entering and exiting the cable stretching device 3 horizontally in the container 1 as the transverse direction, the horizontal and vertical directions are the longitudinal directions.

[0050] As Figures 1-3 , Figure 14 shown, the cable stretching device 3 is used to make the cable 9 passing through form at least one outwardly curved section 901 at this place. The pointed end 902 of the curved section 901 is supported by a support wheel. The outer side of the pointed end 902 is the stretching side. The broken notch on the stretching side opens under the stretching action. And on the outside of the curved section 901, a liquid guiding mechanism 7 facing the stretching side is also arranged. The conductive liquid sprayed by the spray head 704 of the liquid guiding mechanism 7 shoots towards the opening of the stretching side, thereby accelerating the speed of the conductive liquid entering the opening, and thus improving the detection efficiency and accuracy of the sheath insulation performance;

[0051] And by continuously conveying the cable 9, a continuous spiral stretching surface is synchronously formed by rotation. By adjusting the coverage length of the spray head 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 area on the circumferential surface of the cable 9, and the insulation detection is more thorough.

[0052] In addition, the cable stretching device 3 drives the curved section 901 to rotate circumferentially. The axis line 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 self - rotatively, and the self - 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, by continuously conveying the cable 9, a continuous spiral stretching surface is synchronously formed by rotation. The formed spiral surface can be bent to cover the circumferential surface of the cable 9. Therefore, the entire circumferential surface of the cable 9 is stretched once. If there is a broken notch on the circumferential surface, the broken notch will open under the stretching action, and the liquid guiding mechanism 7 can spray the conductive liquid into the opening, so that the conductive liquid is connected to the current inside the cable 9. The alarm arranged in the conductive liquid triggers an alarm, and at the same time, the cable winding mechanism, the cable unwinding mechanism and the motor 12 are closed. At this time, the damaged notch position is on the outer side of the pointed end 902; if there is no notch on the circumferential surface of the cable 9, it continues to move forward under the action of the unwinding mechanism and the winding mechanism, and the liquid guiding mechanism 7 forms at least one spiral spraying track on the cable 9, and the spraying track covers the entire circumferential surface of the cable 9.

[0053] 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.

[0054] 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.

[0055] like Figures 6-7As shown, the second rotating disc assembly 8 includes a second fixing member. The lower side of the second fixing member 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. At the second through hole, a second extension cylinder 805 for installing the second rotating disc 801 is fixed. The hollow part of the second extension cylinder 805 communicates with the second through hole. A second bearing 804 is installed on the second extension cylinder 805. The second rotating disc 801 is rotatably installed on the outer side of the second bearing 804, so that the second rotating disc 801 can rotate on the outer side of the second extension cylinder 805. A second gear ring 807 is fixed on the second fixing member. The second gear ring 807 and the second extension cylinder 805 are coaxial. A frame 6 is fixed between the first rotating disc 504 and the second rotating disc 801.

[0056] Specifically, as Figures 4-5 shown, in the present application, the first fixing member is set as a disc shape, namely the first mounting disc 502, and the second fixing member is set as a disc shape, namely the second mounting disc 806, so as to reduce the material cost. Moreover, the outer edge of the first mounting disc 502 and the first through hole 505 are concentric, and the outer edge of the second mounting disc 806 and the second through hole are concentric. In order to facilitate the installation of the first gear ring 501, the outer diameter of the first mounting disc 502 is adapted to the inner diameter of the first gear ring 501, so that the first gear ring 501 is fixed on the outer edge of the first mounting disc 502. In order to facilitate the installation of the second gear ring 807, the outer diameter of the second mounting disc 806 is adapted to the inner diameter of the second gear ring 807, so that the second gear ring 807 is fixed on the outer edge of the second mounting disc 806. The left side of the first mounting disc 502 is fixedly connected to the first footrest 4 through bolts, and the bottom of the first footrest 4 is fixedly connected to the bottom of the container 1. The right side of the second mounting disc 806 is fixedly connected to the second footrest 11 through bolts, and the bottom of the second footrest 11 is fixedly connected to the bottom of the container 1.

[0057] Further, a third gear ring 803 is installed on the second rotating disc 801. The third gear ring 803 meshes with the driving gear 809. The driving gear 809 is fixed to the end of the output shaft 808 of the motor. A third through hole for avoiding the output shaft 808 of the motor is provided on the second mounting disc 806. The motor 12 is arranged outside the container 1, and the output shaft of the motor 12 is rotatably and sealingly connected to the container 1.

[0058] Specifically, a third extension cylinder 802 facing right is arranged on the outer side of the second rotating disc 801. The third gear ring 803 is fixed on the inner wall of the third extension cylinder 802. The output shaft of the motor passes through the second mounting disc 806 and is fixedly connected to the driving gear 809. The driving gear 809 meshes 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. When the third gear ring 803 rotates, the second rotating disc 801 will be driven to rotate around the axis, and the second rotating disc 801 will drive the first rotating disc 504 to rotate around the axis through the frame 6.

[0059] Further, as Figure 8 shown, the frame body 6 is formed with a channel adapted to the bent section 901 of the cable 9, and the left side of the frame body 6 is fixedly connected to the first rotating disk 504, and the right side is fixedly connected to the second rotating disk 801. Moreover, the centers of the inlet and outlet of the channel coincide with the centers of the first through hole 505 and the second through hole, so that when the circumferential rotation of the cable bent section 901 occurs, it only contacts the bending assembly 10.

[0060] Specifically, as Figure 9 shown, in this application, the frame body 6 is composed of four mutually parallel arched connecting rods 607. The four arched connecting rods 607 form a continuous rectangular channel. The arched connecting rod 607 includes 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 front third mounting seat 602 and a rear fourth mounting seat 603 are fixed between the top mounting plate 601 and the bottom mounting plate 604. A spacing for the cable 9 to pass through is left 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. Transverse mounting holes 608 penetrating transversely are formed in the third mounting seat 602 and the fourth mounting seat 603. The axle of the first support wheel 1005 passes through the transverse mounting hole 608 of the third mounting seat 602, and the axle of the second support wheel 1006 passes through the transverse mounting hole 608 of the fourth mounting seat 603. Through the top mounting plate 601, the bottom mounting plate 604, the third mounting seat 602 and the fourth mounting seat 603, the four mutually parallel arched connecting rods 607 can be fixedly connected into a whole; first mounting seats 1001 and second mounting seats 1010 are mounted on the straight portions 606. Longitudinal mounting holes penetrating longitudinally are formed in the first mounting seats 1001 and the second mounting seats 1010. 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.

[0061] Specifically, the first mounting seat 1001 and the second mounting seat 1010 have the same structure and both consist of first mounting plates arranged parallel to each other in the front and rear. The upper part of the front first mounting plate is fixedly connected to the arched connecting rod 607 at the upper part of the front side, and the lower part of the front first mounting plate is fixedly connected to the arched connecting rod 607 at the lower part of the front side. The upper part of the rear first mounting plate is fixedly connected to the arched connecting rod 607 at the upper part of the rear side, and the lower part of the rear first mounting plate is fixedly connected to the arched connecting rod 607 at the lower part of the rear side. Longitudinally penetrating longitudinal mounting holes are formed in the first mounting plates arranged parallel to each other in the front and rear. The limiting wheels are arranged between the first mounting plates arranged parallel to each other in the front and rear, and the wheel shafts of the limiting wheels penetrate into the longitudinal mounting holes. The third mounting seat 602 and the fourth mounting seat 603 have the same structure and both consist of second mounting plates arranged parallel to each other on the left and right. The upper end of the left second mounting plate is fixedly connected to the left side of the top mounting plate 601, and the lower end of the left second mounting plate is fixedly connected to the left side of the bottom mounting plate 604. The upper end of the right second mounting plate is fixedly connected to the right side of the top mounting plate 601, and the lower end of the right second mounting plate is fixedly connected to the right side of the bottom mounting plate 604. Transversely penetrating transverse mounting holes 608 are formed in the second mounting plates arranged parallel to each other on the left and right. The supporting wheels are arranged between the second mounting plates arranged parallel to each other on the left and right, and the wheel shafts of the supporting wheels extend into the transverse mounting holes 608.

[0062] Further, as Figures 10-13 shown, the bending assembly 10 includes a supporting wheel assembly 101 in the middle and limiting wheel assemblies 102 symmetrically arranged on both sides. The supporting wheel assembly 101 includes a first supporting wheel 1005 and a second supporting wheel 1006 that are symmetrically arranged horizontally below both sides of the cable 9 in the bending section 901. The first supporting wheel 1005 and the second supporting wheel 1006 are tangent to the bending section 901 of the cable 9, and the first supporting wheel 1005 and the second supporting wheel 1006 support the bending section 901 of the cable 9 outward to form a pointed end 902. The limiting wheel assembly 102 includes a first mounting seat 1001 and a second mounting seat 1010 fixedly installed on the frame 6. A first limiting wheel 1008 and a second limiting wheel 1009 are respectively rotatably installed on the first mounting seat 1001 and the second mounting seat 1010. As Figure 13 shown, by setting the limiting wheels, both the inlet end and the outlet end of the cable 9 in the bending section 901 are on the circumferential rotation axis.

[0063] Further, the wheel shafts of the first supporting wheel 1005 and the second supporting wheel 1006 extend to both sides and are fixedly connected to driven wheels, and the driven wheels on both sides are respectively engaged with a first toothed ring 501 and a second toothed ring 807.

[0064] Specifically, the wheel axles of the first support wheels 1005 extend to both sides and are fixedly connected to the first driven wheels 1002. The first driven wheel 1002 on the left side meshes with the first toothed ring 501, and the first driven wheel 1002 on the right side meshes with the second toothed ring 807. The wheel axles of the second support wheels 1006 extend to both sides and are fixedly connected to the second driven wheels 1003. The second driven wheel 1003 on the left side meshes with the first toothed ring 501, and the second driven wheel 1003 on the right side meshes with the second toothed ring 807.

[0065] Furthermore, a plurality of bearing seats are provided on the frame body 6. The number of bearing seats is adapted to the wheel axles of the first support wheels 1005 and the second support wheels 1006. Both sides of the wheel axles of the first support wheels 1005 and the second support wheels 1006 are rotatably connected to the frame body 6 through the bearing seats.

[0066] 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 to the frame body 6. Two bearings are fixed on the base, and the wheel axles of the first support wheel 1005 and the second support wheel 1006 are rotatably connected by the two bearings.

[0067] Furthermore, as Figures 15-16 shown, a liquid guiding mechanism 7 is installed on the frame body 6. 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 body 6, the conductive liquid is guided to the nozzle 704 and sprayed out.

[0068] Specifically, the water collecting cover 701 is fixed on the top mounting plate 601. The opening side 702 of the water collecting cover is in the same direction as the rotation direction of the frame body 6. The water collecting cover 701 is of a conical structure. A pipe body 703 is communicated with the bottom of the water collecting cover 701, so that the conductive liquid can be smoothly guided to the pipe body 703. The pipe 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 adapted to the stretching surface 903 of the cable 9, and a plurality of strip-shaped nozzles 705 are arranged on the arc surface.

[0069] The above is only the specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention can easily think of changes or substitutions, which should all be covered within the protection scope of the present invention; without conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other. Therefore, the protection scope of the present invention should 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 3, 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 fixing member. 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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