Cable breakage-proof monitoring device

Abstract

The utility model discloses a cable breakage-proof monitoring device, and relates to the technical field of cable detection devices. The device comprises a base, the upper side of the base is provided with a high-voltage detector, a fixing frame and a leveling assembly, and the upper part of the fixing frame is provided with a power assembly; the upper end face of the power assembly is provided with a square inserting rod, the periphery of the square inserting rod is sleeved with a winding roller, the upper end face of the winding roller is provided with an operation box, a pressing plate is elastically matched in the operation box, the upper end face of the pressing plate is provided with a handle, the lower end face of the pressing plate is provided with a fixing barrel, and the upper side of the square inserting rod is provided with a groove hole corresponding to the fixing barrel. And a pressing rod and two inserting blocks are elastically matched in the fixed barrel. The pressing rod is pressed downwards, the inserting block slides into the fixing barrel under the action of elastic force, the fixing barrel is pulled upwards through the handle, fixation of the winding roller is relieved, and therefore the winding roller can be replaced conveniently, the operation process is more convenient, and the replacement efficiency of the winding roller is improved.

Description

Technical Field

[0001] This utility model belongs to the field of cable testing devices, specifically, it relates to a cable damage prevention monitoring device. Background Technology

[0002] Cables are generally covered with an insulation layer. During actual use, the insulation layer is easily damaged by the external environment, which can lead to electrical safety accidents. Therefore, before a cable is put into use, it is necessary to conduct a damage location inspection on the cable sheath.

[0003] Chinese Patent No. CN220933110U discloses a power cable damage positioning device, comprising: the winding assembly includes a drive motor fixedly installed at the center of the bottom of the mounting frame, the output shaft of the drive motor passing through the top of the mounting frame and fixedly connected to an insertion rod, the top of the mounting frame is provided with a winding roller, the winding roller is provided with an insertion hole for the insertion rod to pass through, and the top of the insertion rod is threadedly connected with a cover for preventing the winding roller from disengaging from the insertion rod.

[0004] The power cable damage locating device disclosed in this application requires the cap to be unscrewed from the threaded groove at the top of the plug rod using a ring handle, thereby releasing the restriction on the take-up roller and allowing for replacement. Therefore, each time the take-up roller is replaced, the cap must be screwed to release the restriction on the take-up roller or to fix the take-up roller. The process of screwing the cap is time-consuming and laborious, which can easily affect the efficiency of the take-up roller replacement. Utility Model Content

[0005] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide a cable damage prevention monitoring device, which solves the problems mentioned in the background art.

[0006] To solve the above-mentioned technical problems, the basic concept of the technical solution adopted by this utility model is as follows:

[0007] A cable damage prevention monitoring device includes: a base, a high-voltage detector, a fixing frame and a leveling component mounted on the upper side of the base, the high-voltage detector being located between the fixing frame and the leveling component, and a power component being provided on the upper part of the fixing frame;

[0008] A square insert rod is mounted on the upper surface of the power assembly. A take-up roller is fitted around the square insert rod. The take-up roller has a square groove that runs through it. The square insert rod is located inside the square groove. An operation box is placed on the upper surface of the take-up roller. A pressure plate is elastically fitted inside the operation box. A handle is mounted on the upper surface of the pressure plate. A fixed barrel is mounted on the lower surface of the pressure plate. The operation box is fitted around the fixed barrel. The upper side of the square insert rod has a slot corresponding to the fixed barrel. The lower end of the fixed barrel is slidably fitted into the slot. A pressing rod and two insert blocks are elastically fitted inside the fixed barrel. The pressure plate and the handle are both located around the pressing rod. The side of the pressing rod has two inclined grooves. One end of the insert block is slidably fitted into the corresponding inclined groove. The side of the fixed barrel has a slot corresponding to the insert block. The insert block passes through the slot. The inner wall of the slot has an insertion hole corresponding to the insert block.

[0009] Optionally, a force-bearing plate is installed on the lower side of the insert block, and a spring is installed between the force-bearing plate and the inner wall side of the fixed barrel. The force-bearing plate is located between the spring and the pressing rod. A spring is installed between the pressing rod and the lower end face of the inner wall of the fixed barrel. Two springs are installed between the pressure plate and the lower end face of the inner wall of the operating box. The fixed barrel is located between the two springs.

[0010] Optionally, the fixed barrel is provided with two guide blocks on its side. The guide blocks are located below the insert block. The inner wall of the slot is provided with a guide groove corresponding to the guide blocks. The guide blocks slide in the guide groove, and the guide groove passes through the upper side of the square insert rod.

[0011] Optionally, the power assembly includes a turntable, the lower end of which is rotatably fitted within a fixed frame. A square insert is mounted on the upper surface of the turntable. A driven gear is mounted on the circumference of the turntable. A motor is mounted on the upper side of the inner wall of the fixed frame. The motor output shaft passes vertically through the fixed frame. A driving gear is fixedly connected to the motor output shaft. Both the driving gear and the driven gear are rotatably fitted on the upper side of the fixed frame, and the driving gear and the driven gear mesh in the same direction.

[0012] Optionally, the upper side of the fixed frame is provided with a circular groove, and a bearing is installed on the periphery of the circular groove. The bearing is installed on the periphery of the turntable, and the lower end of the turntable is rotatably fitted in the circular groove.

[0013] Optionally, an L-shaped bracket is mounted on the upper side of the fixed frame, and a reciprocating screw is rotatably fitted thereon. The L-shaped bracket is located between the take-up roller and the high-pressure detector. A connecting block is threaded around the reciprocating screw. A traction ring is mounted on one side of the connecting block, and a slider is mounted on the other side. A vertical groove corresponding to the slider is provided on one side of the inner wall of the L-shaped bracket. The slider slides in the vertical groove. A driven gear two is mounted around the reciprocating screw. The driven gear two is rotatably fitted on the upper side of the fixed frame and meshes with the driving gear.

[0014] Optionally, the upper side of the inner wall of the L-shaped bracket is provided with a groove one corresponding to the reciprocating lead screw, and the upper end of the reciprocating lead screw is rotatably fitted in the groove one. The upper side of the fixed bracket is provided with a groove two corresponding to the reciprocating lead screw, and the lower end of the reciprocating lead screw is rotatably fitted in the groove two.

[0015] Optionally, the leveling component includes two mounting brackets mounted on the upper side of the base, with two straightening cylinders rotatably fitted between the two mounting brackets. The two straightening cylinders are vertically distributed, and each mounting bracket has two rotating holes on its opposite inner side. Bearings are installed around the rotating holes, and rotating columns are installed on both ends of the straightening cylinders. Bearings are installed around the rotating columns.

[0016] By adopting the above technical solution, the present invention has the following beneficial effects compared with the prior art. Of course, any product implementing the present invention does not necessarily need to achieve all of the following advantages at the same time:

[0017] By pressing down the pressing lever, the insert block slides into the fixed barrel under the action of elastic force. By pulling the fixed barrel upward with the handle, the fixing of the take-up roller is released, which facilitates the replacement of the take-up roller and makes the operation more convenient and improves the replacement efficiency of the take-up roller. By pressing down the handle and pressing lever, the fixed barrel slides into the slot, and the inclined slot squeezes the insert block, which makes it easy for the insert block to be locked into the insertion hole, thereby realizing the quick fixing of the take-up roller.

[0018] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings. Attached Figure Description

[0019] The accompanying drawings described below are merely some embodiments. Those skilled in the art can obtain other drawings based on these drawings without any creative effort. In the drawings:

[0020] Figure 1 This is a schematic diagram of the three-dimensional structure of the monitoring device;

[0021] Figure 2 This is a schematic diagram of the cross-sectional structure of the monitoring device;

[0022] Figure 3 This is a schematic diagram of the cross-sectional structure of a square insertion rod.

[0023] The attached diagram lists the components represented by each number as follows:

[0024] 1. Base, 2. High-pressure detector, 3. Mounting bracket, 4. Straightening cylinder, 5. Fixing bracket, 6. Turntable, 7. Square insert rod, 8. Winding roller, 9. Operation box, 10. Pressure plate, 11. Handle, 12. Pressing rod, 13. Fixing barrel, 14. Slot, 15. Inclined slot, 16. Insert block, 17. Insert hole, 18. Force plate, 19. Spring 1, 20. Spring 2, 21. Spring 3, 22. Motor, 23. Driven gear 1, 24. Driven gear 2, 25. L-shaped bracket, 26. Connecting block, 27. Vertical slide groove, 28. Traction ring, 29. Reciprocating screw, 30.

[0025] It should be noted that these accompanying drawings and textual descriptions are not intended to limit the scope of the present invention in any way, but rather to illustrate the concept of the present invention to those skilled in the art by referring to specific embodiments. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0028] Cables, as crucial carriers of electrical energy and signals, are widely used in various fields, from everyday household electricity to complex industrial control systems, from signal transmission in communication base stations to precision instruments in aerospace—cables are ubiquitous. Their performance directly affects the stability, reliability, and operational efficiency of the entire system. With the rapid development of technology, various industries are placing increasingly higher demands on cable performance, driving continuous innovation and progress in cable technology.

[0029] Cables typically consist of a conductor, insulation layer, shielding layer, and sheath layer. The conductor is the core component of the cable, responsible for transmitting current or signals. Common conductor materials include copper and aluminum. Copper has good electrical conductivity, thermal conductivity, and mechanical properties, making it the most commonly used conductor material; aluminum, due to its lower cost and lighter weight, is also widely used in some power transmission applications.

[0030] The insulation layer surrounds the conductor, its function being to prevent current leakage and ensure the directional transmission of current within the conductor. The performance of the insulation material directly affects the electrical and safety performance of the cable. Besides materials such as PVC and PE mentioned earlier, there are also high-performance insulation materials such as cross-linked polyethylene (XLPE) and polytetrafluoroethylene (PTFE). XLPE has excellent insulation, heat resistance, and mechanical properties, and is widely used in medium and high voltage power cables; PTFE, on the other hand, has extremely low dielectric constant and coefficient of friction, and is often used in cables operating in high-frequency and high-temperature environments.

[0031] The shielding layer is mainly used to prevent external electromagnetic interference from affecting the signals inside the cable, while also preventing the signals inside the cable from interfering with the outside world. Common shielding methods include copper wire braiding shielding and aluminum foil shielding. Copper wire braiding shielding has good flexibility and shielding effect, making it suitable for mobile devices and cables that require frequent bending; aluminum foil shielding has higher shielding efficiency and is often used for communication cables with high shielding requirements.

[0032] The sheath layer is located on the outermost layer of the cable and mainly serves a protective function, preventing the cable from being damaged by mechanical forces, chemical corrosion, or moisture intrusion. Sheath materials include PVC and rubber, with the appropriate material selected based on the specific operating environment. For example, rubber sheaths, which offer good UV resistance and weather resistance, are commonly used in outdoor environments; while PVC sheaths are widely used indoors due to their low cost and ease of processing.

[0033] Surface damage during cable manufacturing can be caused by a variety of factors, such as raw material quality issues, mechanical friction from production equipment, and uneven stress during the stretching process. Timely detection of these surface damages is crucial for ensuring cable product quality and improving production efficiency.

[0034] (a) Visual inspection technology

[0035] 1. Camera-based 2D visual inspection

[0036] Principle: A high-resolution industrial camera is used to photograph the surface of the cable. Image processing algorithms are then used to analyze the acquired images and compare them with pre-set standard images to identify whether there are scratches, cracks, dents, bumps, or other damage on the surface. For example, when features such as discontinuous lines or abnormal color changes appear in the image, the system can determine that there may be surface damage.

[0037] Application scenarios: Widely used in the production lines of various cables, especially communication cables and precision electronic cables with high requirements for surface quality. For example, in the production process of optical fibers, real-time two-dimensional visual inspection can promptly detect minute defects on the surface of the optical fiber, avoiding signal transmission problems caused by fiber damage.

[0038] 2. 3D laser scanning visual inspection

[0039] Principle: By emitting a laser beam onto the cable surface and measuring the time or phase difference of the reflected light, the three-dimensional contour information of the cable surface is obtained. Comparison with a standard three-dimensional model allows for precise detection of surface deformation, wear, and other damage. For example, if the three-dimensional contour of a certain area on the cable surface deviates significantly from the standard model, damage in that area can be determined.

[0040] Application scenarios: Suitable for cables with high shape accuracy requirements, such as special cables used in the aerospace industry. During the production of these cables, 3D laser scanning vision inspection can effectively detect subtle shape changes and surface damage that may occur during the manufacturing process.

[0041] (II) Ultrasonic Testing Technology

[0042] 1. Pulse-echo ultrasonic testing

[0043] Principle: High-frequency ultrasonic pulses are emitted towards the cable surface. When the pulses encounter surface damage (such as cracks or delamination), reflected echoes are generated. By receiving and analyzing the time, amplitude, and frequency characteristics of the reflected echoes, the location, size, and depth of the damage can be determined. For example, the axial location of the damage within the cable can be determined based on the echo time delay, and the magnitude of the echo amplitude is related to the severity of the damage.

[0044] Application scenarios: Commonly used in the production and testing of large cables such as power cables and submarine cables. In power cable production, pulse-echo ultrasonic testing can detect internal defects in the insulation and sheath layers, as well as tiny surface cracks, ensuring the safety and reliability of the cable during long-term operation.

[0045] 2. Ultrasonic guided wave testing

[0046] Principle: This method utilizes the property that ultrasonic guided waves, when encountering defects while propagating in a cable, undergo reflection, refraction, and mode conversion. Surface damage is detected by analyzing the received guided wave signals. Since ultrasonic waves can propagate over long distances along the length of the cable, rapid inspection of long cables is possible.

[0047] Application scenarios: Particularly suitable for online inspection of long-distance cables, such as heat tracing cables in oil and gas pipelines. During the production of these long-distance cables, ultrasonic testing can quickly detect surface damage along the cable's length, improving inspection efficiency.

[0048] (III) Electromagnetic Induction Detection Technology

[0049] 1. Eddy current testing

[0050] Principle: When a detection coil carrying alternating current approaches the surface of a cable, induced eddy currents are generated on the cable surface. If there is damage to the cable surface, the distribution and magnitude of the eddy currents will change, causing a change in the impedance of the detection coil. By measuring the change in the impedance of the detection coil, it is possible to determine whether there is damage to the cable surface. For example, when there is a crack in the cable surface, the eddy currents at the crack will be distorted, resulting in a significant change in the impedance of the detection coil.

[0051] Application scenarios: Commonly used for surface inspection of metal cables, such as copper and aluminum conductor cables. During the wire manufacturing process, eddy current testing can quickly detect defects such as scratches and pits on the conductor surface, ensuring the conductivity and mechanical strength of the wire.

[0052] 2. Magnetic particle testing

[0053] Principle: Magnetic powder is applied to the surface of the cable. When the cable surface is damaged and placed in a magnetic field, a leakage magnetic field is generated at the damaged area, attracting the magnetic powder to accumulate, thus revealing the location and shape of the damage. For example, when inspecting some magnetized metal cables, cracks, gaps, and other damaged areas on the surface will attract magnetic powder, forming obvious magnetic traces.

[0054] Application scenarios: Primarily used for surface inspection of ferromagnetic cable materials, such as some special-purpose steel cables. During the production of these cables, magnetic particle testing can visually detect surface defects, facilitating timely repair.

[0055] Please see Figure 1-3 As shown, this embodiment provides a cable damage prevention monitoring device, including: a base 1, a high voltage detector 2, a fixing frame 5 and a leveling component mounted on the upper side of the base 1, the high voltage detector 2 being located between the fixing frame 5 and the leveling component, and a power component being provided on the upper part of the fixing frame 5;

[0056] A square insert rod 7 is mounted on the upper surface of the power assembly. A take-up roller 8 is sleeved around the square insert rod 7. The take-up roller 8 has a square groove that runs through it. The square insert rod 7 is located inside the square groove. An operation box 9 is placed on the upper surface of the take-up roller 8. A pressure plate 10 is elastically fitted inside the operation box 9. A handle 11 is mounted on the upper surface of the pressure plate 10. A fixing barrel 13 is mounted on the lower surface of the pressure plate 10. The operation box 9 is sleeved around the fixing barrel 13. The upper side of the square insert rod 7 has a corresponding part on the fixing barrel 13. The lower end of the fixed barrel 13 is slidably fitted in the slot 14. The fixed barrel 13 is elastically fitted with a pressing rod 12 and two insert blocks 16. The pressure plate 10 and the handle 11 are both located on the periphery of the pressing rod 12. The side of the pressing rod 12 is provided with two inclined grooves 15. One end of the insert block 16 is slidably fitted in the corresponding inclined groove 15. The side of the fixed barrel 13 is provided with a slot corresponding to the insert block 16. The insert block 16 passes through the slot. The inner wall of the slot 14 is provided with an insertion hole 17 corresponding to the insert block 16.

[0057] One application of this embodiment is as follows: In use, the take-up roller 8 is fitted onto the square insert rod 7, then the operation box 9 is placed on the take-up roller 8, and the fixed barrel 13 is aligned with the slot 14. Simultaneously, the pressing rod 12 is pressed down to slide the inclined groove 15 downwards. At the same time, the insert block 16 is subjected to elastic force, and the groove opening restricts the sliding direction of the insert block 16, causing the insert block 16 to slide horizontally into the fixed barrel 13. Then, the handle 11 is pressed down to drive the pressure plate 10 and the fixed barrel 13 down. When the insert block 16 slides into the slot 14 along with the fixed barrel 13, the pressing rod 12 is released. The pressing rod 12 rebounds upwards under the elastic force, and the insert block 16 is pressed outwards by the inclined groove 15, sliding against the inner wall of the slot 14 and continuing to slide down with the fixed barrel 13. When the insert block 16 slides to be horizontally aligned with the insert hole 17, the pressing rod 12 is quickly reset under the elastic force. The insert 16 continues to be squeezed and slides outward toward the fixed barrel 13, so that one end of the insert 16 is engaged in the insertion hole 17. Then, the pressure on the handle 11 is released, and the installation and fixation of the take-up roller 8 is completed. After the fixation is completed, one end of the cable is passed through the leveling component and the high-voltage detector 2 in sequence and wound around the take-up roller 8. Then, the high-voltage detector 2 is activated to detect cable damage. At the same time, the power component is activated to drive the square insert rod 7 to rotate. The rotation of the square insert rod 7 drives the take-up roller 8 to rotate and wind up the cable. When the winding is completed, the power component and the high-voltage detector 2 are stopped. Then, the pressing rod 12 is pressed down to release the limit of the insert 16 on the fixed barrel 13. Then, the handle 11 is pulled up to pull the fixed barrel 13 upward. When the insert 16 slides out of the slot 14, the handle 11 and the pressing rod 12 are released. The pressing rod 12 and the pressure plate 10 are spring back to their original positions under the action of elastic force, thereby releasing the fixation of the take-up roller 8. It should be noted that all electrical devices involved in this application can be powered by batteries or external power sources.

[0058] By pressing down the pressing rod 12, the insert 16 slides into the fixed barrel 13 under the action of elastic force, and the fixed barrel 13 is pulled up by the handle 11 to release the fixation of the take-up roller 8, thereby facilitating the replacement of the take-up roller 8, making the operation more convenient and improving the replacement efficiency of the take-up roller 8. By pressing down the handle 11 and the pressing rod 12, the fixed barrel 13 slides into the slot 14, and the insert 16 is squeezed by the inclined slot 15, so that the insert 16 can be locked into the insertion hole 17, thereby realizing the quick fixation of the take-up roller 8.

[0059] like Figure 3As shown, in this embodiment, a force plate 18 is installed on the lower side of the insert block 16. A spring 19 is installed between the force plate 18 and the inner wall side of the fixed barrel 13. The force plate 18 is located between the spring 19 and the pressing rod 12. A spring 20 is installed between the pressing rod 12 and the lower end face of the inner wall of the fixed barrel 13. Two springs 31 are installed between the pressure plate 10 and the lower end face of the inner wall of the operation box 9. The fixed barrel 13 is located between the two springs 321. When the pressing rod 12 is pressed down, the spring 19 rebounds and pushes the force plate 18 to move, thereby causing the force plate 18 to drive the insert block 16 to slide into the fixed barrel 13. The spring 20 facilitates the rapid reset of the pressing rod 12 after it is released. The inclined groove 15 is used to squeeze the insert block 16 so that the insert block 16 can be locked in the insertion hole 17. The spring 321 rebounds and pushes the pressure plate 10 to quickly move the fixed barrel 13 upward and reset, thereby making the disassembly of the winding roller 8 more convenient.

[0060] like Figure 3 As shown, the fixed barrel 13 of this embodiment is provided with two guide blocks on its side. The guide blocks are located below the insert block 16. The inner wall of the slot 14 is provided with a guide groove corresponding to the guide block. The guide block slides in the guide groove. The guide groove passes through the upper side of the square insert rod 7. By cooperating with the guide block and the guide groove, the insert block 16 and the insertion hole 17 are kept on the same vertical line when the fixed barrel 13 enters the slot 14, which improves the convenience of horizontal alignment between the insert block 16 and the insertion hole 17.

[0061] like Figure 1 , 2 As shown, the power assembly of this embodiment includes a turntable 6, the lower end of which is rotatably fitted within a fixed frame 5. A square insert 7 is mounted on the upper surface of the turntable 6. A driven gear 24 is mounted on the periphery of the turntable 6. A motor 22 is mounted on the upper side of the inner wall of the fixed frame 5. The output shaft of the motor 22 vertically penetrates the fixed frame 5. A drive gear 23 is fixedly connected to the output shaft of the motor 22. Both the drive gear 23 and the driven gear 24 are rotatably fitted on the upper side of the fixed frame 5. The drive gear 23 meshes with the driven gear 24. In use, the motor 22 drives the drive gear 23 to rotate. The rotation of the drive gear 23 drives the driven gear 24, the turntable 6, and the square insert 7 to rotate. The rotation of the square insert 7 drives the winding roller 8 to rotate, thereby achieving the winding of the cable.

[0062] like Figure 2 As shown, the upper side of the fixed frame 5 in this embodiment is provided with a circular groove, and a bearing is installed on the periphery of the circular groove. The bearing is installed on the periphery of the turntable 6, and the lower end of the turntable 6 is rotatably fitted in the circular groove. The bearing reduces the friction between the turntable 6 and the circular groove when the turntable 6 rotates, and at the same time improves the stability of the turntable 6 when it rotates.

[0063] like Figure 1 , 2As shown, in this embodiment, an L-shaped bracket 26 is mounted on the upper side of the fixed frame 5, and a reciprocating screw 30 is rotatably fitted thereon. The L-shaped bracket 26 is located between the take-up roller 8 and the high-pressure detector 2. A connecting block 27 is threaded around the reciprocating screw 30. A traction ring 29 is mounted on one side of the connecting block 27, and a slider is mounted on the other side. A vertical groove 28 corresponding to the slider is provided on one side of the inner wall of the L-shaped bracket 26. The slider slides within the vertical groove 28. A driven gear 25 is mounted around the reciprocating screw 30. Gear 25 is rotatably fitted on the upper side of the fixed frame 5. Driven gear 25 meshes with driving gear 23. Through the meshing of driven gear 25 and driving gear 23, driving gear 23 to rotate drives driven gear 25 and reciprocating screw 30 to rotate, thereby driving connecting block 27, slider and traction ring 29 to slide up and down. Through the cooperation of vertical groove 28 with slider, the stability of connecting block 27 when sliding is improved and the probability of connecting block 27 rotating with reciprocating screw 30 is reduced.

[0064] like Figure 1 , 2 As shown, the upper side of the inner wall of the L-shaped bracket 26 in this embodiment is provided with a groove 1 corresponding to the reciprocating lead screw 30. The upper end of the reciprocating lead screw 30 is rotatably fitted in the groove 1. The upper side of the fixing frame 5 is provided with a groove 2 corresponding to the reciprocating lead screw 30. The lower end of the reciprocating lead screw 30 is rotatably fitted in the groove 2. The stability of the reciprocating lead screw 30 during rotation is improved by the groove 1 and the groove 2.

[0065] like Figure 1 , 2 As shown, the leveling component of this embodiment includes two mounting brackets 3 mounted on the upper side of the base 1. Two straightening cylinders 4 are rotatably fitted between the two mounting brackets 3. The two straightening cylinders 4 are vertically distributed. Each of the two mounting brackets 3 has two rotating holes on its inner side. Bearings are installed around the rotating holes. Rotating columns are installed on both ends of the straightening cylinders 4. Bearings are installed around the rotating columns. By cooperating with the rotating holes and rotating columns, the stability of the straightening cylinders 4 when rotating is improved. By using bearings, the friction between the straightening cylinders 4 and the mounting brackets 3 when rotating is reduced, so that the straightening cylinders 4 rotate more smoothly.

[0066] This utility model is not limited to the above-described embodiments. Anyone should know that structural changes made under the guidance of this utility model, and any technical solutions that are the same as or similar to this utility model, fall within the protection scope of this utility model. Technical aspects, shapes, and structures not described in detail in this utility model are all publicly known technologies.

Claims

1. A cable breakage prevention monitoring device, characterized in that, include: The base (1) is equipped with a high-voltage detector (2), a fixing frame (5) and a flat assembly on the upper side of the base (1), and a power assembly is provided on the upper part of the fixing frame (5); A square insert rod (7) is installed on the upper end of the power assembly. A take-up roller (8) is sleeved around the square insert rod (7). An operation box (9) is placed on the upper end of the take-up roller (8). A pressure plate (10) is elastically fitted inside the operation box (9). A handle (11) is installed on the upper end of the pressure plate (10). A fixed bucket (13) is installed on the lower end of the pressure plate (10). A slot (14) corresponding to the fixed bucket (13) is provided on the upper side of the square insert rod (7). A pressing rod (12) and two insert blocks (16) are elastically fitted inside the fixed bucket (13). Two inclined grooves (15) are provided on the side of the pressing rod (12). One end of the insert block (16) is slidably fitted in the corresponding inclined groove (15). A slot corresponding to the insert block (16) is provided on the side of the fixed bucket (13). An insertion hole (17) corresponding to the insert block (16) is provided on the inner wall side of the slot (14).

2. The cable breakage prevention monitoring device according to claim 1, characterized in that, A force plate (18) is installed on the lower side of the insert (16). A spring (19) is installed between the force plate (18) and the inner wall side of the fixed bucket (13). A spring (20) is installed between the pressing rod (12) and the lower end face of the inner wall of the fixed bucket (13). Two springs (21) are installed between the pressure plate (10) and the lower end face of the inner wall of the operation box (9).

3. The cable breakage monitoring device according to claim 2, characterized in that, The fixed bucket (13) has two guide blocks on its side. The guide blocks are located below the insert block (16). The inner wall of the slot (14) has a guide groove corresponding to the guide blocks.

4. The cable breakage prevention monitoring device according to claim 1, characterized in that, The power assembly includes a turntable (6), the lower end of which is rotatably fitted in a fixed frame (5), a square insert (7) is installed on the upper surface of the turntable (6), a driven gear (24) is installed on the circumference of the turntable (6), a motor (22) is installed on the upper side of the inner wall of the fixed frame (5), and a drive gear (23) is fixedly connected to the output shaft of the motor (22), and the drive gear (23) meshes with the driven gear (24).

5. The cable breakage monitoring device according to claim 4, characterized in that, The upper side of the fixed frame (5) is provided with a circular groove, and a bearing is installed on the circumference of the circular groove. The bearing is installed on the circumference of the turntable (6).

6. The cable breakage prevention monitoring device according to claim 1, characterized in that, The upper side of the fixed frame (5) is equipped with an L-shaped bracket (26) and a reciprocating screw (30) is rotatably fitted. A connecting block (27) is threaded around the reciprocating screw (30). A traction ring (29) is installed on one side of the connecting block (27) and a slider is installed on the other side. A vertical groove (28) corresponding to the slider is provided on one side of the inner wall of the L-shaped bracket (26). A driven gear (25) is installed around the reciprocating screw (30). The driven gear (25) meshes with the driving gear (23).

7. The cable breakage monitoring device according to claim 6, characterized in that, The upper side of the inner wall of the L-shaped bracket (26) is provided with a groove corresponding to the reciprocating screw (30), and the upper side of the fixed bracket (5) is provided with a groove corresponding to the reciprocating screw (30).

8. The cable breakage prevention monitoring device according to claim 1, characterized in that, The leveling component includes two mounting brackets (3) mounted on the upper side of the base (1), and two straightening cylinders (4) are rotatably engaged between the two mounting brackets (3).

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