A cable insulation monitoring device

Abstract

This utility model relates to the field of cable insulation monitoring technology, and proposes a cable insulation monitoring device, including a device housing. Inside the housing are a guide wheel assembly and a detection structure. The guide wheel assembly includes a first guide wheel and a second guide wheel. The first guide wheel has first rollers on both sides, rotatably connected to the device housing. The second guide wheel has second rollers on both sides, slidably connected to the device housing. The second guide wheel has a first telescopic structure that abuts against the device housing. The detection structure includes an upper arc-shaped detection plate and a lower arc-shaped detection plate. The upper arc-shaped detection plate has a fixing rod fixedly connected to the device housing. The lower arc-shaped detection plate has a second telescopic structure that abuts against the device housing. This technical solution solves the problem in existing technologies where the distance between the rollers needs to be adjusted each time, leading to increased installation steps, cumbersome operation, and reduced detection efficiency.

Description

Technical Field

[0001] This utility model relates to the field of cable insulation monitoring technology, specifically to a cable insulation monitoring device. Background Technology

[0002] Cable insulation monitoring devices are equipment used to detect and evaluate the insulation condition of cables, and are widely used in power, communication, and industrial automation fields. With the increasing complexity of cable systems and the diversification of application environments, cable insulation monitoring devices are playing an increasingly important role in ensuring the safe and reliable operation of cable systems.

[0003] The prior art discloses a high-voltage cable insulation fault monitoring and early warning device, including a support mechanism, within which symmetrically arranged traveling mechanisms are provided. The high-voltage cable is located between the traveling mechanisms. The traveling mechanism includes first lifting components arranged on both sides of the support mechanism, wherein a first motor is provided on either of the first lifting components, and the first motor is driven to a rolling wheel. The side of the rolling wheel away from the first motor is rotatably connected to the first lifting component, and the high-voltage cable is located between the two rolling wheels. The support mechanism is provided with a second lifting component, on which a clamping component is provided. Two symmetrically arranged electric telescopic rods are provided within the clamping component. The fixed end of the electric telescopic rod is fixedly connected to the clamping component, and the movable end of the electric telescopic rod is fixedly connected to an arc-shaped plate. A detection element is provided on the arc-shaped plate, and the arc-shaped plate is in contact with the high-voltage cable.

[0004] The aforementioned prior art requires the first lifting component to adjust the distance between the two rollers during use, thereby adapting the two rollers to cables of different sizes. This means that when the device tests cables of different sizes, the distance between the rollers needs to be adjusted each time through the first lifting component, increasing the installation steps of the device, making the device operation cumbersome, and thus reducing the testing efficiency. Utility Model Content

[0005] This invention proposes a cable insulation monitoring device that solves the problem in related technologies where the distance between the rolling wheels needs to be adjusted each time, leading to increased installation steps, cumbersome operation, and reduced detection efficiency.

[0006] The technical solution of this utility model is as follows:

[0007] A cable insulation monitoring device includes a device housing, within which a guide wheel assembly and a detection structure are provided. A connection opening is provided on one side of the device housing. The guide wheel assembly includes a first guide wheel and a second guide wheel. The wheel surface of the first guide wheel abuts against the wheel surface of the second guide wheel. First rollers are provided on both sides of the first guide wheel and are rotatably connected to the device housing. Second rollers are provided on both sides of the second guide wheel and are slidably connected to the device housing. The second guide wheel is provided with a first telescopic structure that allows it to move away from the first guide wheel and return to its original position. The first telescopic structure abuts against the device housing.

[0008] The detection structure includes an upper arc-shaped detection plate and a lower arc-shaped detection plate, which abut against each other. The upper arc-shaped detection plate is provided with a fixing rod, which is fixedly connected to the device housing. The lower arc-shaped detection plate is provided with a second telescopic structure that allows the lower arc-shaped plate to move away from the upper arc-shaped detection plate and to return to its original position. The second telescopic structure abuts against the device housing. The device housing is provided with a handle structure that facilitates the operator to move the second guide wheel and the lower arc-shaped plate away from their corresponding first guide wheel or upper arc-shaped plate. The device housing is provided with a warning device and a drive structure for driving the first guide wheel to rotate. The upper arc-shaped detection plate, the lower arc-shaped detection plate and the warning device are electrically connected.

[0009] Furthermore, the first telescopic structure includes a first guide rod, a first return spring, and two limiting rods. Each of the two second rollers is fitted with a connecting bearing. One end of each of the two limiting rods is fixedly connected to the two connecting bearings. The end of each limiting rod away from the second guide wheel extends away from the first guide wheel and out of the device housing. A first limiting plate is provided between the two limiting rods. The first limiting plate is fixedly connected to the two limiting rods. One end of the first guide rod is fixedly connected to the first limiting plate. The end of the first guide rod away from the first limiting plate extends away from the second guide wheel and out of the device housing. Both the limiting rods and the first guide rod are slidably connected to the device housing. The first return spring is fitted outside the first guide post, and both ends of the first return spring abut against the first limiting plate and the device housing, respectively.

[0010] Furthermore, the second telescopic structure includes a second guide rod and a second return spring. One end of the second guide rod is fixedly connected to the lower arc-shaped detection plate, and the end of the second guide rod away from the lower arc-shaped detection plate extends away from the upper arc-shaped detection plate and extends out of the device housing. The second guide rod is fixedly connected to a second limiting plate, and the two ends of the second return spring abut against the second limiting plate and the device housing, respectively.

[0011] Furthermore, the handle structure includes a first handle rod and a second handle rod. The first handle rod is fixedly connected to one end of the first guide rod and the second guide rod located outside the device housing. The second handle rod is located on the side of the device housing opposite to the first handle rod and is fixedly connected to the device housing. The cross-section of the second handle rod is U-shaped.

[0012] Furthermore, the drive structure includes a motor and a synchronous belt. The motor is embedded in the device housing and fixedly connected to the device housing. The rotating shaft of the motor is fixedly connected to a synchronous shaft. The synchronous shaft extends away from the motor and extends out of the device housing. The motor has a motor cover on the side facing the synchronous shaft. The motor cover is snapped into the device housing. The synchronous shaft is provided with a synchronous belt. The synchronous belt is sleeved on the synchronous shaft and the first roller.

[0013] Furthermore, the device housing is embedded with a driving battery, which is detachably connected to the device housing. The device housing is snapped with a battery cover, which abuts against the driving battery cover. The driving battery is electrically connected to the motor.

[0014] The working principle and beneficial effects of this utility model are as follows:

[0015] This invention utilizes a first and a second telescopic structure to allow the second guide wheel and the lower arc-shaped detection plate to extend away from the first guide wheel and the upper arc-shaped detection plate. This allows the device to simultaneously insert the cable between the first and second guide wheels, the upper arc-shaped detection plate, and the lower arc-shaped detection plate through the connection opening. Simultaneously, the first and second telescopic structures also have a reset function. After the cable is inserted between the first and second guide wheels, the upper arc-shaped detection plate, and the lower arc-shaped detection plate, the second guide wheel and the lower arc-shaped detection plate reset to clamp the cable, completing the installation of the monitoring device. When connected to cables of different sizes, this invention can automatically adapt to the cable size and clamp the cable, allowing the device to move stably on the cable, thus achieving rapid installation. The handle structure allows the operator to quickly pull the first and second telescopic structures, thereby separating the second guide wheel and the lower arc-shaped detection plate from the first guide wheel and the upper arc-shaped detection plate, and thus installing the device on the cable. This invention uses a drive structure to rotate the first guide wheel, thereby enabling the device to move on the cable. This allows the upper and lower arc-shaped detection plates to monitor the insulation of the entire cable. This invention solves the problem in related technologies where the distance between the rolling wheels needs to be adjusted each time, leading to increased installation steps, cumbersome operation, and reduced detection efficiency. Attached Figure Description

[0016] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0017] Figure 1 This is a schematic diagram of the structure of this utility model;

[0018] Figure 2 This is a front view of the present invention;

[0019] Figure 3 This is a rear view of the present invention;

[0020] Figure 4 This is a side view of the present invention;

[0021] Figure 5 for Figure 2 Sectional view at point AA;

[0022] Figure 6 for Figure 4 Sectional view at BB.

[0023] In the diagram: 1. Device housing; 2. Guide wheel assembly; 3. Detection structure; 4. Warning device; 11. First handle; 12. Second handle; 13. Battery cover; 14. Connection opening; 21. First guide wheel; 22. Second guide wheel; 23. Connecting bearing; 24. First roller; 25. Second roller; 26. Limiting rod; 27. First guide rod; 31. Upper arc-shaped detection plate; 32. Lower arc-shaped detection plate; 51. Motor cover; 52. Synchronous shaft; 53. Synchronous belt; 261. First limiting plate; 262. First return spring; 311. Fixing rod; 321. Second guide rod; 322. Second limiting plate; 323. Second return spring. Detailed Implementation

[0024] The technical solutions of this utility model will be clearly and completely described below with reference to the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this utility model.

[0025] like Figures 1-6As shown, this embodiment proposes a cable insulation monitoring device, including a device housing 1. A guide wheel assembly 2 and a detection structure 3 are disposed inside the device housing 1. A connection opening 14 is provided on one side of the device housing 1. The guide wheel assembly 2 includes a first guide wheel 21 and a second guide wheel 22. The wheel surface of the first guide wheel 21 abuts against the wheel surface of the second guide wheel 22. A first roller 24 is provided on both sides of the first guide wheel 21. The first roller 24 is rotatably connected to the device housing 1. A second roller 25 is provided on both sides of the second guide wheel 22. The second roller 25 is slidably connected to the device housing 1. The second guide wheel 22 is provided with a first telescopic structure for moving the second guide wheel 22 away from the first guide wheel 21 and being able to return to its original position. The first telescopic structure abuts against the device housing 1.

[0026] The housing 1 provides support and protection for the overall structure. The guide wheel assembly 2 guides and moves the device along the cable, enabling the detection structure 3 to stably detect the cable. The connection opening 14 allows the cable to enter the housing 1. The first guide wheel 21 and the second guide wheel 22 abut against each other, forming a clamping structure; their rotation drives the device to move along the cable. The first roller 24 is rotatably connected to the housing 1, allowing the first guide wheel 21 to rotate freely. The second roller 25 is slidably connected to the housing 1, allowing the second guide wheel 22 to slide and adjust its position. Adjusting the position of the second guide wheel 22 allows for adaptation to cables of different diameters, increasing the device's applicability. The first telescopic structure allows the second guide wheel 22 to move away from the first guide wheel 21 and return to its original position when not in use; the first telescopic structure provides flexible adjustment, enabling the device to adapt to cables of different specifications while ensuring appropriate clamping force on the cable during detection.

[0027] The detection structure 3 includes an upper arc-shaped detection plate 31 and a lower arc-shaped detection plate 32. The upper arc-shaped detection plate 31 and the lower arc-shaped detection plate 32 abut against each other. The upper arc-shaped detection plate 31 is provided with a fixing rod 311, which is fixedly connected to the device housing 1. The lower arc-shaped detection plate 32 is provided with a second telescopic structure that allows the lower arc-shaped plate to move away from the upper arc-shaped detection plate 31 and to return to its original position. The second telescopic structure abuts against the device housing 1. The device housing 1 is provided with a handle structure that facilitates the operator to move the second guide wheel 22 and the lower arc-shaped plate away from their corresponding first guide wheel 21 or upper arc-shaped plate. The device housing 1 is provided with a warning device 4 and a drive structure for driving the first guide wheel 21 to rotate. The upper arc-shaped detection plate 31, the lower arc-shaped detection plate 32 and the warning device 4 are electrically connected.

[0028] The upper arc-shaped detection plate 31 and the lower arc-shaped detection plate 32 form a clamping structure that wraps around and detects the insulation condition of the cable. The upper arc-shaped detection plate 31 and the lower arc-shaped detection plate 32 can contact the cable from all directions, providing accurate insulation detection and improving detection accuracy and reliability. One of the upper arc-shaped detection plate 31 and the lower arc-shaped detection plate 32 should be equipped with a connecting strip. The connecting strip extends to the other detection plate and can be embedded in the other detection plate, so that the upper arc-shaped detection plate 31 and the lower arc-shaped detection plate 32 can be connected to each other after clamping the cable, thereby forming a closed loop. The working principle of the upper arc-shaped detection plate 31 and the lower arc-shaped detection plate 32 is that they are in contact with the cable. If there is a problem with the insulation layer of the cable (such as cracks, aging, damage, etc.), the cable will have current leakage. After the leakage current comes into contact with the upper arc-shaped detection plate 31 or the lower arc-shaped detection plate 32, the current will be conducted to the upper arc-shaped detection plate 31 or the lower arc-shaped detection plate 32. Because the upper arc-shaped detection plate 31 and the lower arc-shaped detection plate 32 are electrically connected to the warning device 4, the current will trigger the warning device 4 through the upper arc-shaped detection plate 31 or the lower arc-shaped detection plate 32, and issue an alarm signal to remind the operator that there is an insulation problem in the cable. This inspection method can sensitively detect minute leakage currents and promptly identify insulation defects; it allows for real-time monitoring of the entire cable length, ensuring thorough insulation checks; it does not damage the cable structure and is suitable for various cable types and specifications. The fixing rod 311 is used to fix the upper arc-shaped detection plate 31 to the device housing 1. The second telescopic structure allows the lower arc-shaped detection plate 32 to move away from the upper arc-shaped detection plate 31 and reset when not in use; the second telescopic structure provides flexible adjustment, enabling the device to adapt to cables of different diameters while ensuring appropriate clamping force on the cable during testing. The handle structure simplifies operation, facilitating quick installation and disassembly of the device and improving work efficiency. The warning device 4 issues a warning signal when the upper arc-shaped detection plate 31 and lower arc-shaped detection plate 32 detect cable insulation problems, promptly reminding the operator of the insulation issues, improving safety, and facilitating timely maintenance measures; the warning signal can be an audible alarm, a visual alarm, a simultaneous audible and visual alarm, or a transmission of an alarm signal to the operator's terminal. The drive structure is used to drive the first guide wheel 21 to rotate, thereby driving the device to move on the cable through the first guide wheel 21.

[0029] In this embodiment, the first telescopic structure includes a first guide rod 27, a first return spring 262, and two limiting rods 26. Two second rollers 25 are each fitted with connecting bearings 23. One end of each of the two limiting rods 26 is fixedly connected to the two connecting bearings 23. The end of the limiting rod 26 away from the second guide wheel 22 extends away from the first guide wheel 21 and extends out of the device housing 1. A first limiting plate 261 is provided between the two limiting rods 26 and is fixedly connected to the two limiting rods 26. One end of the first guide rod 27 is fixedly connected to the first limiting plate 261. The end of the first guide rod 27 away from the first limiting plate 261 extends away from the second guide wheel 22 and extends out of the device housing 1. The limiting rods 26 and the first guide rod 27 are slidably connected to the device housing 1. The first return spring 262 is fitted outside the first guide post, and both ends of the first return spring 262 abut against the first limiting plate 261 and the device housing 1, respectively.

[0030] The first guide rod 27 provides guidance and support for the second guide wheel 22, enabling it to slide in a specific direction. The first return spring 262 provides a restoring force, allowing the second guide wheel 22 to return to its original position after the cable enters between the first guide wheel 21 and the second guide wheel 22, thus clamping the cable. The limiting rod 26 ensures that the second guide wheel 22 remains stable during the moving and resetting process, while maintaining stable rotation of the second guide wheel 22 during device movement, preventing positional deviation. The connecting bearing 23 connects the second roller 25 and the limiting rod 26, providing smooth rotation, reducing friction, improving the movement and rotation flexibility of the second guide wheel 22, and extending the service life of the device. The first limiting plate 261 connects to the first guide rod 27, making the first guide rod 27 and the two limiting rods 26 form a whole, ensuring synchronous movement of the limiting rods 26 and the guide rods, maintaining the coordination and stability of the entire structure.

[0031] In this embodiment, the second telescopic structure includes a second guide rod 321 and a second return spring 323. One end of the second guide rod 321 is fixedly connected to the lower arc-shaped detection plate 32, and the other end of the second guide rod 321 extends away from the lower arc-shaped detection plate 32 and away from the upper arc-shaped detection plate 31, extending out of the device housing 1. A second limiting plate 322 is fixedly connected to the second guide rod 321, and both ends of the second return spring 323 abut against the second limiting plate 322 and the device housing 1, respectively. The second guide rod 321 provides sliding guidance, enabling the lower arc-shaped detection plate 32 to move smoothly. The second return spring 323 provides restoring force, causing the lower arc-shaped detection plate 32 to return to its original position after the cable enters between the upper and lower arc-shaped detection plates 31, thereby clamping the cable. The second limiting plate 322 is fixedly connected to the second guide rod 321, providing stable support and ensuring that the movement of the second guide rod 321 is controlled, maintaining the coordination and stability of the entire structure.

[0032] In this embodiment, the handle structure includes a first handle rod 11 and a second handle rod 12. The first handle rod 11 is fixedly connected to the end of the first guide rod 27 and the second guide rod 321 located outside the device housing 1. The second handle rod 12 is located on the side of the device housing 1 opposite to the first handle rod 11 and is fixedly connected to the device housing 1. The cross-section of the second handle rod 12 is U-shaped. The first handle rod 11 is used to connect and fix the end of the first guide rod 27 and the second guide rod 321 located outside the device housing 1, providing a gripping point for manual operation. The operator can conveniently control the movement of the first guide rod 27 and the second guide rod 321 by gripping the first handle rod 11, thereby realizing the movement of the second guide wheel 22 and the lower arc-shaped detection plate 32, simplifying the operation process and improving work efficiency. The second handle rod 12 provides an additional operating support point, making it more stable and convenient for the operator to install the device, improving the comfort and safety of operation. The U-shaped structure of the second handle rod 12 enhances the structural strength and operational comfort of the handle.

[0033] In this embodiment, the drive structure includes a motor (not shown in the figure) and a synchronous belt 53. The motor is embedded in and fixedly connected to the device housing 1. The motor shaft is fixedly connected to a synchronous shaft 52, which extends away from the motor and out of the device housing 1. A motor cover 51 is provided on the side of the motor facing the synchronous shaft 52, and the motor cover 51 is snapped into the device housing 1. The synchronous belt 53 is provided on the synchronous shaft 52 and is sleeved on the synchronous shaft 52 and the first roller 24. The motor provides a power source, providing stable and continuous power output. The motor cover 51 covers and protects one side of the synchronous shaft 52 of the motor, protecting the motor and its transmission components from the influence of the external environment, increasing the service life of the motor, and facilitating maintenance and repair. The synchronous shaft 52 is used to achieve effective power transmission, ensure the stable operation of the synchronous belt 53, and improve the overall transmission efficiency and reliability of the device. The synchronous belt 53 is used to transmit the power of the motor through the synchronous shaft 52, drive the first roller 24 to rotate, and then drive the first guide wheel 21 to rotate, thereby realizing the movement of the device on the cable.

[0034] In this embodiment, a drive battery (not shown in the figure) is embedded in the device housing 1. The drive battery is detachably connected to the device housing 1. A battery cover 13 is snapped onto the device housing 1, and the drive battery abuts against the battery cover 13. The drive battery is electrically connected to the motor. The drive battery provides power to the motor. The detachable design provides a portable power solution, ensuring that the device can work normally in various environments, facilitating replacement and maintenance, and improving the flexibility and ease of use of the device. The detachable connection between the drive battery and the device housing 1 means that the drive battery is embedded in the corresponding battery slot in the device housing 1. The battery cover 13 is used to cover and protect the drive battery from the influence of the external environment, increase the service life of the drive battery, and facilitate battery replacement and maintenance.

[0035] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A cable insulation monitoring device, comprising a device housing (1), wherein a guide wheel assembly (2) and a detection structure (3) are provided inside the device housing (1), characterized in that, The device housing (1) has a connection opening (14) on one side. The guide wheel assembly (2) includes a first guide wheel (21) and a second guide wheel (22). The wheel surface of the first guide wheel (21) abuts against the wheel surface of the second guide wheel (22). The first guide wheel (21) has a first roller (24) on both sides. The first roller (24) is rotatably connected to the device housing (1). The second guide wheel (22) has a second roller (25) on both sides. The second roller (25) is slidably connected to the device housing (1). The second guide wheel (22) has a first telescopic structure for moving the second guide wheel (22) away from the first guide wheel (21) and returning to its original position. The first telescopic structure abuts against the device housing (1). The detection structure (3) includes an upper arc-shaped detection plate (31) and a lower arc-shaped detection plate (32). The upper arc-shaped detection plate (31) and the lower arc-shaped detection plate (32) abut against each other. The upper arc-shaped detection plate (31) is provided with a fixing rod (311). The fixing rod (311) is fixedly connected to the device housing (1). The lower arc-shaped detection plate (32) is provided with a second telescopic structure for moving the lower arc-shaped plate away from the upper arc-shaped detection plate (31) and resetting. The second telescopic structure abuts against the device housing (1). The device housing (1) is provided with a handle structure for facilitating the operator to move the second guide wheel (22) and the lower arc-shaped plate away from their corresponding first guide wheel (21) or upper arc-shaped plate. The device housing (1) is provided with a warning device (4) and a drive structure for driving the first guide wheel (21) to rotate. The upper arc-shaped detection plate (31), the lower arc-shaped detection plate (32) and the warning device (4) are electrically connected.

2. A cable insulation monitoring device according to claim 1, characterised in that, The first telescopic structure includes a first guide rod (27), a first return spring (262), and two limiting rods (26). Each of the two second rollers (25) is fitted with a connecting bearing (23). One end of each of the two limiting rods (26) is fixedly connected to the two connecting bearings (23). The end of the limiting rod (26) away from the second guide wheel (22) extends away from the first guide wheel (21) and extends out of the device housing (1). A first limiting plate (261) is provided between the two limiting rods (26). The first limiting plate (261) and the two limiting rods... The rod (26) is fixedly connected, one end of the first guide rod (27) is fixedly connected to the first limiting plate (261), the end of the first guide rod (27) away from the first limiting plate (261) extends away from the second guide wheel (22) and extends out of the device housing (1), the limiting rod (26) and the first guide rod (27) are both slidably connected to the device housing (1), the first return spring (262) is sleeved outside the first guide post, and the two ends of the first return spring (262) abut against the first limiting plate (261) and the device housing (1) respectively.

3. A cable insulation monitoring device according to claim 2, characterised in that, The second telescopic structure includes a second guide rod (321) and a second return spring (323). One end of the second guide rod (321) is fixedly connected to the lower arc-shaped detection plate (32). The end of the second guide rod (321) away from the lower arc-shaped detection plate (32) extends away from the upper arc-shaped detection plate (31) and extends out of the device housing (1). The second guide rod (321) is fixedly connected to a second limiting plate (322). The two ends of the second return spring (323) abut against the second limiting plate (322) and the device housing (1) respectively.

4. A cable insulation monitoring device according to claim 3, characterised in that, The handle structure includes a first handle bar (11) and a second handle bar (12). The first handle bar (11) is fixedly connected to the first guide rod (27) and the second guide rod (321) at one end outside the device housing (1). The second handle bar (12) is located on the side of the device housing (1) away from the first handle bar (11). The second handle bar (12) is fixedly connected to the device housing (1). The cross-section of the second handle bar (12) is U-shaped.

5. The apparatus of claim 1 wherein, The drive structure includes a motor and a synchronous belt (53). The motor is embedded in the device housing (1) and fixedly connected to the device housing (1). The rotating shaft of the motor is fixedly connected to a synchronous shaft (52). The synchronous shaft (52) extends away from the motor and extends out of the device housing (1). The motor has a motor cover (51) on the side facing the synchronous shaft (52). The motor cover (51) is snapped into the device housing (1). The synchronous shaft (52) is provided with a synchronous belt (53). The synchronous belt (53) is sleeved on the synchronous shaft (52) and the first roller (24).

6. A cable insulation monitoring device according to claim 2, wherein The device housing (1) is fitted with a driving battery, which is detachably connected to the device housing (1). The device housing (1) is snapped with a battery cover (13), which abuts against the battery cover (13). The driving battery is electrically connected to the motor.

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