Power transmission line fault positioning and sensing device

Abstract

The utility model relates to the technical field of cable detection, in particular to a power transmission line fault positioning and sensing device, which comprises a detector body, a detection end, an operating rod and a guide mechanism, the detection end is connected with the detector body through a wire, and the detection end comprises a connecting seat, a movable seat, a reset mechanism and an anti-loosening mechanism; the operating rod is detachably connected with the detection end; the guiding mechanisms are arranged on the operating rod, and the connecting rope is connected with the operating rod through the guiding mechanisms. According to the utility model, the reset mechanism and the anti-loosening mechanism are arranged between the connecting seat and the movable seat, and the opening between the movable seat and the connecting seat can be opened by pulling the connecting rope, so that a cable to be detected can conveniently enter the space between the connecting seat and the movable seat, and the connecting hook is inserted into the connecting hook of the connecting seat under the action of the pre-tightening spring; the detection end is prevented from loosening during movement, the cable is effectively prevented from being separated from the detection end in the detection process, the detection efficiency is guaranteed, and potential safety hazards are reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to cable detection technical field, concretely relates to a power transmission line fault location sensing device. BACKGROUND

[0002] The cable fault locator is a comprehensive cable fault detection instrument, which can test high-resistance flashover faults, high and low resistance grounding, short circuit and cable breakage, poor contact and other faults of the cable, and is widely used in the field of power cables. The cable fault locator comprises a detection end and a detection instrument body. The detection end senses the change of the magnetic field around it and transmits the signal to the detection instrument body. The user controls the detection end to move along the power grid line, confirms the disconnection position according to the change of the electromagnetic field around the cable, and can realize accurate positioning of the fault point.

[0003] A distribution network cable fault locator is disclosed in Chinese Patent No. CN115728599A, which comprises a detection instrument body, a C-shaped detection end connected to the detection instrument body by a wire, a U-shaped bracket, a long rod detachably connected to the bottom of the U-shaped bracket, a long bracket and a short bracket on the top of the U-shaped bracket, a fixed shaft rotatably connected to the inner side of the long bracket, a hinge plate hingedly connected to the top of the short bracket, and an activity shaft rotatably connected to the inner side of the hinge plate. A frame body is fixedly connected to the outer side of the short bracket, and a sliding plate is slidably connected to the inner side of the frame body. A long slot is formed in the side of the sliding plate. The detection end bracket of the cable fault locator is simple in structure, adopts a C-shaped or hook-shaped shape, and the user holds the detection end for detection, which is very laborious during use.

[0004] However, the above technical solution has the following disadvantages: the detection end only relies on the elastic block to realize the connection between the fixed shaft and the activity shaft, lacks the necessary limiting device to ensure the effective connection between the fixed shaft and the activity shaft, and when moving the detection end, the activity shaft is easily separated from the fixed shaft, causing the cable to slide out of the U-shaped bracket, which not only affects the detection efficiency, but also has certain safety hazards. UTILITY MODEL CONTENTS

[0005] The utility model aims at the problems in the background art and provides a power transmission line fault location sensing device.

[0006] The technical scheme of the utility model is a power transmission line fault location sensing device, which comprises:

[0007] A detection instrument body;

[0008] The detection end is connected with the detection instrument body through a wire, and comprises a connecting seat, a movable seat, a reset mechanism and an anti-loosening mechanism; one end of the movable seat is rotatably connected with the connecting seat, one end of the reset mechanism is connected with the connecting seat, the other end of the reset mechanism is connected with the movable seat, one end of the anti-loosening mechanism is connected with the other end of the connecting seat, and the other end of the anti-loosening mechanism is connected with the other end of the movable seat; the reset mechanism and the anti-loosening mechanism are drivingly connected through a connecting rope;

[0009] An operating rod is detachably connected with the detection end;

[0010] A plurality of guide mechanisms are arranged on the operating rod, and the connecting rope is connected with the operating rod through the guide mechanisms.

[0011] Preferably, the reset mechanism comprises a supporting plate, a fixing plate and a reset spring; the supporting plate is fixedly connected with the connecting seat, the fixing plate is fixedly connected with the movable seat, one end of the reset spring is fixedly connected with the supporting plate, and the other end of the reset spring is fixedly connected with the fixing plate.

[0012] Preferably, the anti-loosening mechanism comprises a limiting plate, a movable plate, a pre-tightening spring and a connecting hook; the limiting plate is fixedly connected with the movable seat, one end of the movable plate is rotatably connected with the movable seat, one end of the pre-tightening spring is fixedly connected with the limiting plate, the other end of the pre-tightening spring is fixedly connected with the movable plate, one end of the connecting hook is fixedly connected with the movable plate, and the connecting seat is provided with a connecting groove matched with the connecting hook.

[0013] Preferably, one end of the connecting rope is fixedly connected with the movable plate, the connecting rope penetrates through the reset mechanism and is slidably connected with the reset mechanism, the outer circumferential surface of the movable seat is provided with a guide ring, and the connecting rope is arranged outside the movable seat through the guide ring.

[0014] Preferably, a limiting ring is fixedly connected with the surface of the connecting rope, and the limiting ring is located between the anti-loosening mechanism and the reset mechanism.

[0015] Preferably, the bottom of the connecting seat is fixedly connected with a threaded sleeve, and the top end of the operating rod is fixedly connected with a threaded joint matched with the threaded sleeve.

[0016] Preferably, each guide mechanism comprises a movable ring and a guide ring; the movable ring is sleeved on the surface of the operating rod and is rotatably connected with the operating rod, the guide ring is fixedly connected with the movable ring, and the connecting rope penetrates through the movable ring and is slidably connected with the guide ring.

[0017] Preferably, the operating rod is designed in multiple sections, and each section of the operating rod is provided with a guide mechanism.

[0018] Compared with the prior art, the above technical scheme of the utility model has the following beneficial technical effects:

[0019] This utility model incorporates a reset mechanism and an anti-loosening mechanism between the connecting seat and the movable seat. Pulling the connecting rope opens the opening between the movable seat and the connecting seat, allowing the cable to be tested to enter between them. The connecting hook, under the action of the pre-tightening spring, is inserted into the connecting hook of the connecting seat, preventing loosening when the testing end moves. This effectively prevents the cable from detaching from the testing end during the testing process, ensuring testing efficiency while reducing safety hazards. Attached Figure Description

[0020] Figure 1 This is a perspective view of one embodiment of the present invention;

[0021] Figure 2 This is a perspective view of the detection end and the operating lever in one embodiment of the present invention;

[0022] Figure 3 This utility model Figure 2 A magnified view of a section at point A in the middle;

[0023] Figure 4 This is a perspective view of the detection end in one embodiment of the present invention;

[0024] Figure 5 This is a perspective view of the operating lever in one embodiment of the present invention.

[0025] Reference numerals in the attached drawings: 1. Detector body; 2. Detection end; 21. Connecting seat; 22. Movable seat; 23. Reset mechanism; 231. Support plate; 232. Fixing plate; 233. Reset spring; 24. Anti-loosening mechanism; 241. Limiting plate; 242. Movable plate; 243. Pre-tightening spring; 244. Connecting hook; 245. Connecting groove; 25. Guide ring; 3. Operating rod; 4. Guiding mechanism; 41. Movable ring; 42. Guide ring; 5. Connecting rope; 6. Limiting ring; 7. Threaded sleeve; 8. Threaded joint. Detailed Implementation

[0026] Example 1

[0027] like Figures 1-5 As shown, the present invention proposes a fault location sensing device for transmission lines, which includes a detector body 1, a detection end 2, an operating lever 3, and a guiding mechanism 4.

[0028] The detection end 2 is connected with the detection instrument body 1 through a wire, and the detection end 2 comprises a connecting seat 21, a movable seat 22, a reset mechanism 23 and an anti-loosening mechanism 24; one end of the movable seat 22 is rotatably connected with the connecting seat 21, one end of the reset mechanism 23 is connected with the connecting seat 21, the other end of the reset mechanism 23 is connected with the movable seat 22, one end of the anti-loosening mechanism 24 is connected with the other end of the connecting seat 21, the other end of the anti-loosening mechanism 24 is connected with the other end of the movable seat 22, the reset mechanism 23 and the anti-loosening mechanism 24 are drivingly connected through a connecting rope 5, the surface of the connecting rope 5 is fixedly connected with a limiting ring 6, and the limiting ring 6 is located between the anti-loosening mechanism 24 and the reset mechanism 23.

[0029] The operating rod 3 is detachably connected with the detection end 2, the bottom of the connecting seat 21 is fixedly connected with a threaded sleeve 7, and the top end of the operating rod 3 is fixedly connected with a threaded joint 8 matched with the threaded sleeve 7.

[0030] The guiding mechanism 4 is provided in multiple groups, and the guiding mechanism 4 is arranged on the operating rod 3 and connected with the operating rod 3 through the connecting rope 5.

[0031] Embodiment two

[0032] As Figures 1-4 shown, the utility model discloses a kind of transmission line fault positioning sensing devices, compared with embodiment one, the structure of reset mechanism 23 is further specifically disclosed in the present embodiment;Reset mechanism 23 includes support plate 231, fixed plate 232 and reset spring 233;Support plate 231 is fixedly connected with connecting seat 21, fixed plate 232 is fixedly connected with movable seat 22, one end of reset spring 233 is fixedly connected with support plate 231, the other end of reset spring 233 is fixedly connected with fixed plate 232, connecting rope 5 observes support plate 231 and fixed plate 232.

[0033] Embodiment three

[0034] As Figures 1-3As shown in the utility model discloses a kind of transmission line fault location sensing devices, compared to embodiment two, the structure of the anti-loosening mechanism 24 is further specifically disclosed in the present embodiment;The anti-loosening mechanism 24 includes limiting plate 241, movable plate 242, pre-tightening spring 243 and connecting hook 244;The limiting plate 241 is fixedly connected with the movable seat 22, one end of the movable plate 242 is rotatably connected with the movable seat 22, one end of the pre-tightening spring 243 is fixedly connected with the limiting plate 241, the other end of the pre-tightening spring 243 is fixedly connected with the movable plate 242, one end of the connecting hook 244 is fixedly connected with the movable plate 242, the connecting seat 21 is provided with connecting groove 245 matched with the connecting hook 244, one end of the connecting rope 5 is fixedly connected with the movable plate 242, the connecting rope 5 penetrates the limiting plate 241, the connecting rope 5 penetrates the reset mechanism 23 and is slidably connected with the reset mechanism 23, the outer circumferential surface of the movable seat 22 is provided with a plurality of guide rings 25, and the connecting rope 5 passes through the guide ring 25 and is arranged on the outside of the movable seat 22.

[0035] Embodiment four

[0036] As Figures 1-5 shown, the utility model discloses a kind of transmission line fault location sensing devices, compared to embodiment three, the structure of the guide mechanism 4 is further specifically disclosed in the present embodiment;Each group of guide mechanism 4 includes movable ring 41 and guide ring 42, movable ring 41 is set on the surface of operating lever 3 and is rotatably connected with operating lever 3, guide ring 42 is fixedly connected with movable ring 41, connecting rope 5 penetrates movable ring 41 and is slidably connected with guide ring 42, operating lever 3 adopts multi-section design, and each operating lever 3 is provided with guide mechanism 4.

[0037] The overall length of operating lever 3 is adjusted according to the height of transmission line, the detection end 2 is lifted to the line to be measured by holding one end of operating lever 3, the connecting rope 5 is pulled, the connecting rope 5 moves first to drive movable plate 242 to rotate, movable plate 242 rotates to drive connecting hook 244 to disengage from connecting groove 245, the connecting rope 5 is continuously pulled to drive fixed plate 232 to move through limiting ring 6, fixed plate 232 moves to drive movable seat 22 to rotate around connecting seat 21, so that the opening between movable seat 22 and connecting seat 21 is opened, the cable to be detected is conveniently entered between connecting seat 21 and movable seat 22, the connecting rope 5 is loosened, the reset spring 233 drives the movable seat 22 to rotate and butt joint with the connecting seat 21 through the supporting plate 231, the connecting hook 244 is inserted into the connecting hook 244 of the connecting seat 21 under the action of the pre-tightening spring 243, to avoid loosening when the detection end 2 moves, and the detector body 1 works to detect whether the cable has fault.

[0038] The embodiments of the utility model are described in detail above in combination with the drawings, but the utility model is not limited to this, within the knowledge range possessed by the person skilled in the art, various changes can be made without departing from the purpose of the utility model.

Claims

1. A power line fault location sensing device, characterized by, Include: Detection instrument body (1); Detection end (2) is connected with detection instrument body (1) through wire, detection end (2) includes connecting seat (21), movable seat (22), reset mechanism (23) and anti-loosening mechanism (24); one end of movable seat (22) is rotatably connected with connecting seat (21), one end of reset mechanism (23) is connected with connecting seat (21), the other end of reset mechanism (23) is connected with movable seat (22), one end of anti-loosening mechanism (24) is connected with the other end of connecting seat (21), the other end of anti-loosening mechanism (24) is connected with the other end of movable seat (22), reset mechanism (23) and anti-loosening mechanism (24) are drivingly connected through connecting rope (5); Operating rod (3) is detachably connected with detection end (2); Guide mechanism (4) is provided with multiple groups, guide mechanism (4) is arranged on operating rod (3), connecting rope (5) is connected with operating rod (3) through guide mechanism (4).

2. A power line fault location sensing device according to claim 1, wherein, Reset mechanism (23) includes support plate (231), fixed plate (232) and reset spring (233); support plate (231) is fixedly connected with connecting seat (21), fixed plate (232) is fixedly connected with movable seat (22), one end of reset spring (233) is fixedly connected with support plate (231), the other end of reset spring (233) is fixedly connected with fixed plate (232).

3. A power line fault location sensing device according to claim 1, wherein, Anti-loosening mechanism (24) includes limiting plate (241), movable plate (242), pre-tightening spring (243) and connecting hook (244); limiting plate (241) is fixedly connected with movable seat (22), one end of movable plate (242) is rotatably connected with movable seat (22), one end of pre-tightening spring (243) is fixedly connected with limiting plate (241), the other end of pre-tightening spring (243) is fixedly connected with movable plate (242), one end of connecting hook (244) is fixedly connected with movable plate (242), connecting seat (21) is provided with connecting groove (245) matched with connecting hook (244).

4. A power line fault location sensing device according to claim 3, wherein, One end of connecting rope (5) is fixedly connected with movable plate (242), connecting rope (5) penetrates reset mechanism (23) and is slidably connected with reset mechanism (23), the outer circumferential surface of movable seat (22) is provided with guide ring (25), connecting rope (5) is arranged outside movable seat (22) through guide ring (25).

5. A power line fault location sensing device according to claim 1, wherein, It also includes a limiting ring (6) fixedly connected with the surface of the connecting rope (5), the limiting ring (6) is located between the anti-loosening mechanism (24) and the reset mechanism (23).

6. A power line fault location sensing device according to claim 1, wherein, The bottom of the connecting seat (21) is fixedly connected with a threaded sleeve (7), and the top end of the operating rod (3) is fixedly connected with a threaded joint (8) matched with the threaded sleeve (7).

7. A power line fault location sensing device according to claim 1, wherein Each group of guide mechanisms (4) includes a movable ring (41) and a guide ring (42), the movable ring (41) is sleeved on the surface of the operating rod (3) and rotatably connected with the operating rod (3), the guide ring (42) is fixedly connected with the movable ring (41), the connecting rope (5) penetrates the movable ring (41) and is slidably connected with the guide ring (42).

8. A power line fault location sensing device according to claim 1, wherein, The operation lever (3) is designed in multiple sections, and each section of the operation lever (3) is provided with a guide mechanism (4).

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