CN115728599A

CN115728599A - Distribution network cable fault locator

Info

Publication number: CN115728599A
Application number: CN202211551606.5A
Authority: CN
Inventors: 吴寿长; 方曦; 杨秋; 杨锴; 喻群; 姚锋; 伍宏桢; 禹天润; 陈星宇
Original assignee: Guizhou Power Grid Co Ltd
Current assignee: Guizhou Power Grid Co Ltd
Priority date: 2022-12-05
Filing date: 2022-12-05
Publication date: 2023-03-03

Abstract

The invention discloses a distribution network cable fault locator, which comprises: detecting the instrument body; the C-shaped detection end is connected with the detection instrument body through a lead; the detection device comprises a U-shaped frame, a C-shaped detection end, a long rod, a short frame, a hinge plate and a movable shaft, wherein the C-shaped detection end is positioned at the inner bottom of the U-shaped frame; the frame-shaped frame body is fixedly connected to the outer side face of the short frame, the inner side of the frame-shaped frame body is connected with a sliding plate in a sliding mode, and the side face of the sliding plate is provided with a long groove. With the detection end support body simple structure who solves present cable fault locater and dispose, adopt C type or couple shape, the user is lifting the detection end and is detecting, the very hard problem of use.

Description

Distribution network cable fault locator

Technical Field

The invention relates to the technical field of cable detection, in particular to a distribution network cable fault locator.

Background

The cable fault locator is a comprehensive cable fault detecting instrument, can test the faults of high-resistance flashover fault, high-resistance and low-resistance grounding, short circuit, cable disconnection, poor contact and the like of a cable, and is widely applied to the field of power cables.

The cable fault locator comprises a detection end and a detection instrument body, wherein the detection end senses the change of a surrounding magnetic field and transmits a signal to the detection instrument body, a user controls the detection end to move along a power grid line, and a disconnection position is confirmed according to the change of the electromagnetic field around a cable, so that an accurate positioning fault point can be realized.

The detection end frame body arranged on the existing cable fault locator is simple in structure, adopts a C-shaped or hook shape, and a user lifts the detection end to carry out detection, so that great effort is consumed in the using process, and therefore the invention provides a novel distribution network cable fault locator.

Disclosure of Invention

In order to solve the defects and shortcomings of the prior art, the invention aims to provide a distribution network cable fault locator.

The technical scheme of the invention is that a distribution network cable fault locator comprises:

detecting the instrument body;

the C-shaped detection end is connected with the detection instrument body through a lead;

the C-shaped detection end is positioned at the inner bottom of the U-shaped frame, the bottom of the U-shaped frame is detachably connected with a long rod, the top of the U-shaped frame is provided with a long frame and a short frame, the inner side of the long frame is rotatably connected with a fixed shaft, the top of the short frame is hinged with a hinge plate, and the inner side of the hinge plate is rotatably connected with a movable shaft;

the frame-shaped frame body is fixedly connected to the outer side face of the short frame, a sliding plate is connected to the inner side of the frame-shaped frame body in a sliding mode, a long groove is formed in the side face of the sliding plate, a limiting nail is fixedly connected to the inner side of the frame-shaped frame body and located inside the long groove, and an elastic block is arranged inside the long groove and located above the limiting nail;

and one end of the steel wire rope is fixedly connected with the bottom of the sliding plate.

Optionally, the elongate bar comprises: the novel fishing rod comprises a rod body, wherein a handle part is arranged at the bottom of the rod body, and a threaded head is arranged at the top of the rod body.

Optionally, a threaded connection cylinder is fixedly connected to the bottom of the U-shaped frame, and the threaded head is in threaded fit with the threaded connection cylinder.

Optionally, a wire frame is fixedly connected to a side surface of the threaded connection cylinder, the wire frame is provided with a guide hole, and the steel wire rope penetrates through the guide hole.

Optionally, a second limiting block is fixedly connected to the side surface of the fixed shaft, and a first limiting block is fixedly connected to the side surface of the movable shaft.

Optionally, one end of the second limiting block facing the movable shaft is provided with a conical surface, and one end of the first limiting block facing the fixed shaft is provided with a conical surface.

Optionally, the fixed shaft and the movable shaft are both made of bakelite.

Optionally, the long rod is a telescopic rod.

The beneficial effects of the invention are: compared with the prior art, the cable fault locator is provided with the detection end frame body structure by improving the cable fault locator, the U-shaped frame is adopted, the fixed shaft and the movable shaft are arranged at the top, the movable shaft can be opened along with the hinge plate, the cable is clamped into the inner side of the U-shaped frame, the positions of the fixed shaft and the movable shaft are fixed, the frame body is suspended by the fixed shaft and the movable shaft, and a user only needs to pull the frame body to move when moving, so that the labor is saved.

Drawings

FIG. 1 is a schematic view of the present invention;

FIG. 2 is a perspective view of a U-shaped frame of the present invention;

FIG. 3 is a front elevational view of the elongate rod of the present invention;

FIG. 4 is a front view of the U-shaped frame of the present invention;

FIG. 5 is a right side view of the U-shaped frame of the present invention.

Illustration of the drawings:

1. detecting the instrument body; 2. a C-type detection end; 3. a wire; 4. a long rod; 41. a rod body; 42. a handle portion; 43. a screw head; 5. a U-shaped frame; 51. a long frame; 52. a short frame; 6. a hinge plate; 7. a fixed shaft; 8. a movable shaft; 9. a first stopper; 10. a second limiting block; 11. a threaded connection barrel; 12. a wire frame; 13. a wire rope; 14. a frame-shaped frame body; 15. a sliding plate; 16. an elastic block; 17. a long groove; 18. the nail is restrained.

Detailed Description

The invention is further described with reference to the following figures and specific embodiments:

referring to fig. 1 to 5, a distribution network cable fault locator includes: the detection instrument comprises a detection instrument body 1, a C-shaped detection end 2, a U-shaped frame 5 and a frame-shaped frame body 14.

The C-shaped detection end 2 is connected with the detection instrument body 1 through a lead 3, the C-shaped detection end 2 detects an electromagnetic field around the power cable, the electromagnetic field strength signal is transmitted to the detection instrument body 1 through the lead 3, and a user observes a detection result to obtain the position of a fault point.

The C-shaped detection end 2 is positioned at the inner bottom of the U-shaped frame 5, the top of the long rod 4,U type frame 5 is detachably connected to the bottom of the U-shaped frame 5, a long frame 51 and a short frame 52 are arranged on the top of the U-shaped frame 5, the inner side of the long frame 51 is rotatably connected with a fixed shaft 7, the top of the short frame 52 is hinged with a hinge plate 6, and the inner side of the hinge plate 6 is rotatably connected with a movable shaft 8.

The user controls the U-shaped frame 5 to move through the long rod 4, and then controls the C-shaped detection end 2 to move along the power cable.

When the hinge plate 6 is opened outward, the fixed shaft 7 and the movable shaft 8 abut against each other to block the rotation of the hinge plate 6, and when the hinge plate 6 is opened outward, the gap between the fixed shaft 7 and the movable shaft 8 is increased to allow a cable to enter the inside of the U-shaped frame 5.

The frame-shaped frame body 14 is fixedly connected to the outer side surface of the short frame 52, the sliding plate 15 is connected to the inner side of the frame-shaped frame body 14 in a sliding mode, the long groove 17 is formed in the side surface of the sliding plate 15, the limiting nail 18 is fixedly connected to the inner side of the frame-shaped frame body 14 and located inside the long groove 17, and the elastic block 16 is arranged inside the long groove 17 and located above the limiting nail 18.

Under the action of the elastic block 16, the sliding plate 15 is always in an upper position, and can limit the hinge plate 6 from rotating outwards.

One end of the steel wire rope 13 is fixedly connected with the bottom of the sliding plate 15, a user can pull the steel wire rope 13 and then drive the sliding plate 15 to slide downwards to compress the elastic block 16, the hinge plate 6 rotates outwards, the cable penetrates through a gap between the fixed shaft 7 and the movable shaft 8 and enters the inner side of the U-shaped frame 5, and after the steel wire rope 13 is loosened, the sliding plate 15 slides upwards to the original position under the action of the elastic block 16.

With reference to fig. 3, the long rod 4 comprises: the handle part 42 is arranged at the bottom of the rod body 41, the threaded head 43 is arranged at the top of the rod body 41, the threaded connecting cylinder 11 is fixedly connected to the bottom of the U-shaped frame 5, and the threaded head 43 is in threaded fit with the threaded connecting cylinder 11.

After long-pole 4 is connected with U type frame 5, operating personnel can be on the ground control and lie in the U type frame 5 removal of high latitude, to the overhead power cable detection, need not adopt high altitude construction.

One kind is preferred, and stock 4 is the telescopic link, can adjust the length of stock 4 according to actual need, and application scope is more extensive.

The side surface of the threaded connection cylinder 11 is fixedly connected with a wire frame 12, the wire frame 12 is provided with a guide hole, and the steel wire rope 13 penetrates through the guide hole to be used for guiding the steel wire rope 13, so that the use is convenient.

The side fixedly connected with second stopper 10 of fixed axle 7, the side fixedly connected with first stopper 9 of loose axle 8, the one end of second stopper 10 towards loose axle 8 is provided with the awl profile, and the one end of first stopper 9 towards fixed axle 7 is provided with the awl profile.

The power cable is located in the area between the first limiting block 9 and the second limiting block 10 and just corresponds to the C-shaped detection end 2, and the using effect is good.

The fixed shaft 7 and the movable shaft 8 are both made of bakelite which is an excellent insulating material and is safer to use.

The foregoing is a more detailed description of the invention in connection with specific preferred embodiments and it is not intended that the invention be limited to these specific details. For those skilled in the art to which the invention pertains, several simple deductions or substitutions can be made without departing from the spirit of the invention, and all shall be considered as belonging to the protection scope of the invention.

Claims

1. A distribution network cable fault locator comprises:

a detecting instrument body (1);

it is characterized by also comprising:

the C-shaped detection end (2), the C-shaped detection end (2) is connected with the detection instrument body (1) through a lead (3);

the C-shaped detection end (2) is located at the inner bottom of the U-shaped frame (5), a long rod (4) is detachably connected to the bottom of the U-shaped frame (5), a long frame (51) and a short frame (52) are arranged at the top of the U-shaped frame (5), a fixed shaft (7) is rotatably connected to the inner side of the long frame (51), a hinge plate (6) is hinged to the top of the short frame (52), and a movable shaft (8) is rotatably connected to the inner side of the hinge plate (6);

the limiting device comprises a frame-shaped frame body (14), wherein the frame-shaped frame body (14) is fixedly connected to the outer side surface of a short frame (52), the inner side of the frame-shaped frame body (14) is connected with a sliding plate (15) in a sliding manner, the side surface of the sliding plate (15) is provided with a long groove (17), a limiting nail (18) is fixedly connected to the inner side of the frame-shaped frame body (14) and positioned in the long groove (17), and an elastic block (16) is arranged in the long groove (17) and positioned above the limiting nail (18);

and one end of the steel wire rope (13) is fixedly connected with the bottom of the sliding plate (15).

2. The distribution network cable fault locator according to claim 1, wherein the long rod (4) comprises: the handle structure comprises a rod body (41), wherein a handle part (42) is arranged at the bottom of the rod body (41), and a threaded head (43) is arranged at the top of the rod body (41).

3. The distribution network cable fault locator according to claim 2, wherein a threaded connection barrel (11) is fixedly connected to the bottom of the U-shaped frame (5), and the threaded head (43) is in threaded fit with the threaded connection barrel (11).

4. The distribution network cable fault locator according to claim 3, wherein a wire frame (12) is fixedly connected to the side surface of the threaded connection barrel (11), and the wire frame (12) is provided with a guide hole through which the steel wire rope (13) passes.

5. The distribution network cable fault locator according to claim 1, wherein a second limiting block (10) is fixedly connected to the side surface of the fixed shaft (7), and a first limiting block (9) is fixedly connected to the side surface of the movable shaft (8).

6. The distribution network cable fault locator according to claim 5, wherein the second limiting block (10) is provided with a conical surface at one end facing the movable shaft (8), and the first limiting block (9) is provided with a conical surface at one end facing the fixed shaft (7).

7. The distribution network cable fault locator according to claim 6, wherein the fixed shaft (7) and the movable shaft (8) are made of bakelite.

8. The distribution network cable fault locator according to claim 1, wherein the long rod (4) is a telescopic rod.