Portable low-altitude low-voltage power cable maintenance equipment

Abstract

The utility model discloses a portable low-altitude low-voltage power cable maintenance device, which comprises a sensor, a mobile platform for carrying the sensor is slidably hung on a low-voltage cable, the mobile platform comprises a mounting rack and a fixing plate, two first rollers are rotatably mounted between the fixing plate and the mounting rack, and the two first rollers are rotatably mounted on the mounting rack. A servo motor is fixedly installed on the outer side of the fixing plate, the output end of the servo motor is fixedly connected with one end of one first rolling wheel, a limiting wheel assembly is installed on the installation frame, and a control box and a support are arranged on the left side and the right side of the limiting wheel assembly respectively. According to the portable low-altitude and low-voltage power cable maintenance equipment, the mobile platform for carrying the sensor is slidably hung on the low-voltage cable, and the position of the sensor on the low-voltage cable can be rapidly adjusted by means of the cooperation of the two first rollers driven by the servo motor and the limiting wheel assembly.

Description

Technical Field

[0001] The utility model relates to the technical field of low-voltage cable equipment, in particular to portable low-altitude low-voltage power cable maintenance equipment. Background Art

[0002] The line fault tester is a commonly used equipment for the inspection and maintenance of low-altitude low-voltage power cables. The line fault tester is also called the overhead line grounding fault locator. It is suitable for overhead lines in small current grounding systems. After the line is shut down due to a single-phase grounding fault, the device can be used to accurately locate the docking location. The line fault tester has good portability and can locate faults in multiple lines. The whole set of equipment consists of a transmitter, a sensor, a receiver and accessories. After the faulty line is shut down, the transmitter applies an ultra-low frequency high-voltage signal to the line to reproduce the fault. Along the line, the sensor is hung on the line with an insulating rod to detect the signal and transmit the data to the receiver on the ground wirelessly. The receiver displays the measurement results. Before the fault point, the current continues to exist, and after the fault point, the current disappears. Rough segmentation can be performed first, and then the point can be determined, so as to quickly determine the fault location.

[0003] When determining the precise fault point, the binary method or the 0.618 method is often used to gradually approach the approximate range of the fault point. During the specific operation, the tester needs to frequently adjust the hanging position of the sensor, which is cumbersome. For this reason, the applicant has designed a portable low-altitude low-voltage power cable maintenance equipment to solve the above problem. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides a portable low-altitude low-voltage power cable maintenance device, which solves the problem that when accurately determining the fault point, the test personnel need to frequently adjust the hanging position of the sensor during the specific operation process, which is cumbersome to operate.

[0005] To achieve the above objectives, the utility model is implemented through the following technical solutions: a portable low-altitude low-voltage power cable maintenance device, comprising a sensor mounted on a low-voltage cable for fixed-point fault detection, a mobile platform for carrying the sensor being slidably mounted on the low-voltage cable,

[0006] The mobile platform includes an L-shaped mounting frame and a fixed plate parallelly mounted on the front side of the mounting frame through two connecting rods, two first rollers are rotatably mounted between the fixed plate and the mounting frame, the straight lines where the axes of the two first rollers are located are in the same plane and the two are connected by a belt mechanism, a servo motor is fixedly mounted on the outer side of the fixed plate, the output end of the servo motor rotates through the fixed plate and is fixedly connected to one end of one of the first rollers, a lifting and lowering adjustable limiting wheel assembly is installed on the mounting frame, and a control box and a bracket for sensor assembly are respectively provided on the left and right sides of the limiting wheel assembly.

[0007] Preferably, the limiting wheel assembly includes a second roller and a wheel frame for rotatably mounting the second roller, and an adjusting screw with a vertical thread passing through a horizontal panel of the mounting frame, two baffles respectively arranged on both sides of the wheel frame are welded on the vertical panel of the mounting frame, and the top end of the adjusting screw passes through the wheel frame and is rotatably connected to the wheel frame.

[0008] Preferably, it also includes a ceramic handle vertically mounted on the middle part of the outer side of the fixing plate, and the outer wall of the ceramic handle is provided with anti-slip patterns.

[0009] Preferably, the bracket is welded to a horizontal panel of the mounting frame, a slot for embedding the sensor is provided on the right side of the bracket, and a limiting screw is penetrated through the outer side thread at the opening of the slot.

[0010] Preferably, a rubber gasket is glued on the inner wall of the card slot away from its opening.

[0011] Beneficial Effects

[0012] The utility model provides a portable low-altitude low-voltage power cable maintenance device. Compared with the prior art, it has the following beneficial effects:

[0013] This portable low-altitude low-voltage power cable maintenance equipment, by slidingly hanging a mobile platform for carrying sensors on the low-voltage cable, with the help of two first rollers driven by a servo motor and a limiting wheel assembly, can achieve rapid adjustment of the position of the sensor on the low-voltage cable, and is easy to operate. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural schematic diagram of the utility model;

[0015] Figure 2 This is a schematic diagram of the split structure of the utility model;

[0016] Figure 3 This is a schematic diagram of the structure of the limiting wheel assembly of the utility model;

[0017] Figure 4 This is a schematic diagram of the installation structure of the ceramic handle of the utility model;

[0018] Figure 5 This is a schematic diagram of the installation structure of the sensor of the utility model;

[0019] In the figure:

[0020] 100. Low voltage cables;

[0021] 200, sensor;

[0022] 300, mobile platform;

[0023] 310, mounting frame; 320, connecting rod; 330, fixing plate; 340, belt mechanism; 350, first roller; 360, servo motor; 370, limiting wheel assembly; 380, control box; 390, bracket;

[0024] 3110, stop bar;

[0025] 3310, ceramic handle;

[0026] 3710, second roller; 3720, wheel frame; 3730, adjusting screw;

[0027] 3910, card slot; 3920, limit screw; 3930, rubber gasket. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0029] See also Figure 1-5 The utility model provides a technical solution: a portable low-altitude low-voltage power cable maintenance device, comprising a sensor 200 mounted on a low-voltage cable 100 for fixed-point fault detection, a mobile platform 300 for carrying the sensor 200 is slidably mounted on the low-voltage cable 100, the mobile platform 300 comprises an L-shaped mounting frame 310 and a fixing plate 330 parallelly mounted on the front of the mounting frame 310 through two connecting rods 320, and two first rollers 350 are rotatably mounted between the fixing plate 330 and the mounting frame 310 0, the straight lines where the axes of the two first rollers 350 are located are in the same plane and the two are connected through a belt mechanism 340, a servo motor 360 is fixedly installed on the outer side of the fixed plate 330, the output end of the servo motor 360 rotates and passes through the fixed plate 330 and is fixedly connected to one end of one of the first rollers 350, a lifting and lowering adjustable limiting wheel assembly 370 is installed on the mounting frame 310, and a control box 380 and a bracket 390 for assembling the sensor 200 are respectively provided on the left and right sides of the limiting wheel assembly 370.

[0030] Based on the above-mentioned structural setting, the portable low-altitude low-voltage power cable maintenance equipment is composed of a sensor 200 and a mobile platform 300, wherein the sensor 200 is movably mounted on the low-voltage cable 100 for fixed-point fault detection of the low-voltage cable 100, and the mobile platform 300 is slidably mounted on the low-voltage cable 100 for carrying the sensor 200. Specifically, during the working process, the tester can mount the mobile platform 300 on the low-voltage cable 100 to be repaired with the help of the gap reserved between the fixed plate 330 and the horizontal panel of the mounting frame 310, and the two first rollers 350 are mounted on the top of the low-voltage cable 100. Then, the tester adjusts the height of the limiting wheel assembly 370 so that the low-voltage cable 100 is clamped between the two first rollers 350 and the limiting wheel assembly 370. Then, the tester mounts the sensor 200 on the low-voltage cable 100 and uses the bracket 390 to realize the mounting of the sensor 200 on the mobile platform 300. At this time, the mobile platform 3 is completed. 00 and the sensor 200 are hung on the low-voltage cable 100. During the test phase, the ground test personnel hold the remote control matched with the control box 380 and the receiver matched with the sensor 200 to adjust the position of the sensor 200 along the line and receive the measurement results of the point. For example, the ground test personnel can control the forward and reverse rotation of the servo motor 360 through the remote control, so that the mobile platform 300 can drive the sensor 200 forward and backward on the low-voltage cable 100. For example, the sensor 200 is hung somewhere on the low-voltage cable 100 to detect the signal and transmit the data to the receiver wirelessly. The receiver displays the detection result. The portable low-altitude low-voltage power cable maintenance equipment, by slidingly hanging a mobile platform 300 for carrying the sensor 200 on the low-voltage cable 100, with the help of two first rollers 350 driven by the servo motor 360 and the limiting wheel assembly 370, can realize the rapid adjustment of the position of the sensor 200 on the low-voltage cable 100, and is easy to operate.

[0031] Furthermore, the limiting wheel assembly 370 includes a second roller 3710 and a wheel frame 3720 for rotatably mounting the second roller 3710, and an adjusting screw 3730 with a vertical thread passing through the horizontal panel of the mounting frame 310. Two baffle bars 3110 are welded on the vertical panel of the mounting frame 310 and are arranged on both sides of the wheel frame 3720. The top end of the adjusting screw 3730 passes through the wheel frame 3720 and is rotatably connected to the wheel frame 3720. Among them, when the limit wheel assembly 370 that can be raised and lowered is in a low position, with the help of the gap between the fixed plate 330 and the horizontal panel of the mounting frame 310, it is helpful for the tester to hang the mobile platform 300 on the low-voltage cable 100. When the limit wheel assembly 370 is adjusted to a high position, the two first rollers 350 can be used to realize the limited sliding clamping of the mobile platform 300 on the low-voltage cable 100. Preferably, a second roller 3710 rotatably installed on the top of the adjusting screw 3730 is used, and two baffles 3110 are provided on both sides of the wheel frame 3720. The lifting and lowering of the limit wheel assembly 370 can be guided and limited. Specifically, the operator can quickly realize the lifting and lowering adjustment of the limit wheel assembly 370 by rotating the adjusting screw 3730, and the operation is convenient.

[0032] Furthermore, it also includes a ceramic handle 3310 vertically mounted on the middle of the outer side of the fixing plate 330, and an anti-slip pattern is provided on the outer wall of the ceramic handle 3310. The ceramic handle 3310 provides an insulating grip structure for the tester when installing the mobile platform 300.

[0033] Furthermore, the bracket 390 is welded to the horizontal panel of the mounting frame 310, and a slot 3910 for embedding the sensor 200 is provided on the right side of the bracket 390, and the outer side thread of the opening of the slot 3910 penetrates the limit screw 3920. Among them, the bracket 390 welded to the mounting frame 310 is an assembly part of the sensor 200. Specifically, after the tester hangs the sensor 200 on the low-voltage cable 100, the sensor 200 can be embedded in the slot 3910 by rotating and moving the sensor 200. Finally, by twisting the limit screw 3920, the inner end of the limit screw 3920 blocks the opening of the slot 3910, so as to realize the limit loading of the sensor 200 in the slot 3910.

[0034] Furthermore, a rubber gasket 3930 is formed on the inner wall of the slot 3910 away from the opening thereof. Since the slot 3910 is open on one side, the sensor 200 can only be inserted into the slot 3910 by rotating at the opening of the slot 3910. The provision of the rubber gasket 3930 provides effective protection for the sensor 200 during the insertion process.

[0035] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0036] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A portable low-altitude low-voltage power cable inspection and repair device, comprising a sensor (200) mounted on a low-voltage cable (100) for detecting a fixed-point fault thereof, characterized in that: A mobile platform (300) for carrying the sensor (200) is slidably mounted on the low-voltage cable (100); The mobile platform (300) comprises a mounting frame (310) of an L-shaped structure and a fixing plate (330) which is parallelly mounted on the front of the mounting frame (310) via two connecting rods (320); two first rollers (350) are rotatably mounted between the fixing plate (330) and the mounting frame (310); the straight lines where the axes of the two first rollers (350) are located are in the same plane and the two are connected by a belt mechanism (340); a servo motor (360) is fixedly mounted on the outer side of the fixing plate (330); the output end of the servo motor (360) is rotatably passed through the fixing plate (330) and is fixedly connected to one end of one of the first rollers (350); a lifting and lowering adjustable limiting wheel assembly (370) is mounted on the mounting frame (310); a control box (380) and a bracket (390) for mounting a sensor (200) are respectively provided on the left and right sides of the limiting wheel assembly (370).

2. The portable low-altitude low-voltage power cable maintenance equipment according to claim 1 is characterized in that: The limiting wheel assembly (370) comprises a second roller (3710) and a wheel frame (3720) for rotatably mounting the second roller (3710), and an adjusting screw (3730) having a vertical thread penetrating a horizontal panel of the mounting frame (310); two retaining bars (3110) respectively arranged on both sides of the wheel frame (3720) are welded to the vertical panel of the mounting frame (310); the top end of the adjusting screw (3730) penetrates the wheel frame (3720) and is rotatably connected to the wheel frame (3720).

3. The portable low-altitude low-voltage power cable maintenance equipment according to claim 1 is characterized in that: It also includes a ceramic handle (3310) vertically mounted on the middle part of the outer side of the fixing plate (330), and the outer wall of the ceramic handle (3310) is provided with anti-slip patterns.

4. The portable low-altitude low-voltage power cable maintenance equipment according to claim 1 is characterized in that: The bracket (390) is welded to a horizontal panel of the mounting frame (310), and a slot (3910) for embedding the sensor (200) is provided on the right side of the bracket (390), and a limiting screw (3920) is penetrated through the outer side thread at the opening of the slot (3910).

5. The portable low-altitude low-voltage power cable maintenance equipment according to claim 4 is characterized in that: The slot (3910) has a built-in rubber gasket (3930) on the inner wall away from the opening thereof.

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