A distribution network cable fault locator

Abstract

The present invention discloses a distribution network cable fault locator, comprising: a detection instrument body; a C-shaped detection end, the C-shaped detection end is connected to the detection instrument body through a wire; a U-shaped frame, the C-shaped detection end is located 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 has a long frame and a short frame, a fixed shaft is rotatably connected to the inner side of the long frame, a hinge plate is hinge-connected to the top of the short frame, and a movable shaft is rotatably connected to the inner side of the hinge plate; a frame-shaped body, the frame-shaped body is fixedly connected to the outer side of the short frame, a sliding plate is slidably connected to the inner side of the frame-shaped body, and a long groove is formed in the side surface of the sliding plate. To solve the problem that the detection end frame body of the current cable fault locator has a simple structure, adopts a C-shaped or hook shape, and the user holds the detection end for detection, which is very laborious during the use process.

Description

Technical Field

[0001] The present invention relates to the technical field of cable detection, and particularly to a distribution network cable fault locator. Background Art

[0002] A cable fault locator is a comprehensive cable fault detection instrument. It can test high-resistance flashover faults, high and low resistance grounding, short circuits, cable breaks, poor contacts and other faults of cables, and is widely used in the field of power cables.

[0003] The cable fault locator includes a detection end and a detection instrument body. The detection end senses the surrounding magnetic field changes and transmits the signals to the detection instrument body. The user controls the detection end to move along the power grid line, and according to the electromagnetic field changes around the cable, the disconnection position is confirmed, and the fault point can be accurately located.

[0004] At present, the detection end frame structure of the cable fault locator is simple, in the shape of C or a hook. The user holds the detection end for detection, and the use process is very laborious. Therefore, the present invention provides a new type of distribution network cable fault locator. Summary of the Invention

[0005] In order to solve the above-mentioned shortcomings and deficiencies of the prior art, the purpose of the present invention is to provide a distribution network cable fault locator.

[0006] The technical solution of the present invention is a distribution network cable fault locator, including:

[0007] A detection instrument body;

[0008] A C-shaped detection end, and the C-shaped detection end is connected to the detection instrument body through a wire;

[0009] A U-shaped frame, the C-shaped detection end is located 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 has a long frame and a short frame, a fixed shaft is rotatably connected to the inner side of the long frame, a hinge plate is hinged to the top of the short frame, and a movable shaft is rotatably connected to the inner side of the hinge plate;

[0010] A frame-shaped frame body, the frame-shaped frame body is fixedly connected to the outer side of the short frame, a sliding plate is slidably connected to the inner side of the frame-shaped frame body, a long groove is formed in the side surface 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 above the limiting nail inside the long groove;

[0011] A steel wire rope, one end of the steel wire rope is fixedly connected to the bottom of the sliding plate.

[0012] Optionally, the long rod includes: a rod body, a handle portion is provided at the bottom of the rod body, and a threaded head is provided at the top of the rod body.

[0013] Optionally, a threaded connection cylinder is fixedly connected to the bottom of the U-shaped frame, and the threaded head is in threaded cooperation with the threaded connection cylinder.

[0014] Optionally, a wire rack is fixedly connected to the side surface of the threaded connection cylinder, a guide hole is provided on the wire rack, and the steel wire rope passes through the guide hole.

[0015] 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.

[0016] Optionally, a conical surface is provided at one end of the second limiting block facing the movable shaft, and a conical surface is provided at one end of the first limiting block facing the fixed shaft.

[0017] Optionally, both the fixed shaft and the movable shaft are made of bakelite material.

[0018] Optionally, the long rod is a telescopic rod.

[0019] The beneficial effects of the present invention are: compared with the prior art, the present invention improves the structure of the detection end frame body of the cable fault locator, adopts a U-shaped frame, and a fixed shaft and a movable shaft are provided at the top. The movable shaft can be opened along with the hinge plate. After 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, and the frame body is suspended by using the fixed shaft and the movable shaft. When moving, the user only needs to pull the frame body to move, which is very labor-saving. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is a schematic diagram of the present invention;

[0021] Figure 2 is a perspective view of the U-shaped frame of the present invention;

[0022] Figure 3 is a front view of the long rod of the present invention;

[0023] Figure 4 is a front view of the U-shaped frame of the present invention;

[0024] Figure 5 is a right view of the U-shaped frame of the present invention.

[0025] Legend:

[0026] 1. Detection instrument body; 2. C-shaped detection end; 3. Wire; 4. Long rod; 41. Rod body; 42. Handle part; 43. Threaded head; 5. U-shaped frame; 51. Long frame; 52. Short frame; 6. Hinged plate; 7. Fixed shaft; 8. Movable shaft; 9. First limit block; 10. Second limit block; 11. Threaded connection cylinder; 12. Wire rack; 13. Steel wire rope; 14. Frame-shaped body; 15. Sliding plate; 16. Elastic block; 17. Long groove; 18. Limit nail. Detailed implementation manner

[0027] The invention will be further introduced below in conjunction with the attached drawings and specific embodiments:

[0028] Refer to Figures 1 to 5 , a distribution network cable fault locator, comprising: a detection instrument body 1, a C-shaped detection end 2, a U-shaped frame 5, and a frame-shaped body 14.

[0029] The C-shaped detection end 2 is connected to the detection instrument body 1 through a wire 3. The C-shaped detection end 2 detects the electromagnetic field around the power cable and transmits the electromagnetic field strength signal to the detection instrument body 1 through the wire 3. The user observes the detection result to obtain the position of the fault point.

[0030] The C-shaped detection end 2 is located at the inner bottom of the U-shaped frame 5. The bottom of the U-shaped frame 5 is detachably connected with a long rod 4. The top of the U-shaped frame 5 has a long frame 51 and a short frame 52. 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 hinged plate 6. The inner side of the hinged plate 6 is rotatably connected with a movable shaft 8.

[0031] The user controls the movement of the U-shaped frame 5 through the long rod 4, and then controls the C-shaped detection end 2 to move along the power cable.

[0032] The hinged plate 6 can be opened outward in a hinged manner. When rotating inward, the fixed shaft 7 and the movable shaft 8 abut against each other to prevent the rotation of the hinged plate 6. When the hinged plate 6 is opened outward, the gap between the fixed shaft 7 and the movable shaft 8 becomes larger, allowing the cable to enter the inner side of the U-shaped frame 5.

[0033] The frame-shaped body 14 is fixedly connected to the outer side of the short frame 52. The inner side of the frame-shaped body 14 is slidably connected with a sliding plate 15. A long groove 17 is opened on the side of the sliding plate 15. A limit nail 18 is fixedly connected to the inner side of the frame-shaped body 14 and inside the long groove 17. An elastic block 16 is arranged above the limit nail 18 inside the long groove 17.

[0034] Under the action of the elastic block 16, the sliding plate 15 is usually in the upper position, which can limit the outward rotation of the hinged plate 6.

[0035] Steel wire rope 13, one end of the steel wire rope 13 is fixedly connected to the bottom of the sliding plate 15. The user can pull the steel wire rope 13, then drive the sliding plate 15 to slide downward, compress the elastic block 16, and the hinge plate 6 rotates outward. The cable passes through the gap between the fixed shaft 7 and the movable shaft 8 and enters the inner side of the U-shaped frame 5. After releasing the steel wire rope 13, under the action of the elastic block 16, the sliding plate 15 slides upward to its original position.

[0036] Reference appendix Figure 3 , the long rod 4 includes: a rod body 41, a handle portion 42 is provided at the bottom of the rod body 41, a threaded head 43 is provided at the top of the rod body 41, and a threaded connection cylinder 11 is fixedly connected to the bottom of the U-shaped frame 5. The threaded head 43 is in threaded cooperation with the threaded connection cylinder 11.

[0037] After connecting the long rod 4 to the U-shaped frame 5, the operator can control the movement of the U-shaped frame 5 located at a high altitude on the ground, and for the detection of overhead power cables, there is no need to use high-altitude operations.

[0038] In a preferred embodiment, the long rod 4 is a telescopic rod, and the length of the long rod 4 can be adjusted according to actual needs, and the application range is more extensive.

[0039] A wire rack 12 is fixedly connected to the side of the threaded connection cylinder 11. The wire rack 12 has a guide hole, and the steel wire rope 13 passes through the guide hole for guiding the steel wire rope 13, which is more convenient to use.

[0040] A second limit block 10 is fixedly connected to the side of the fixed shaft 7, and a first limit block 9 is fixedly connected to the side of the movable shaft 8. The end of the second limit block 10 facing the movable shaft 8 is provided with a conical surface, and the end of the first limit block 9 facing the fixed shaft 7 is provided with a conical surface.

[0041] The power cable is located in the area between the first limit block 9 and the second limit block 10, just corresponding to the C-shaped detection end 2, and the use effect is better.

[0042] Both the fixed shaft 7 and the movable shaft 8 are made of bakelite material. Bakelite is an excellent insulating material, and it is safer to use.

[0043] The above content is a further detailed description of the present invention in combination with specific preferred embodiments, and it cannot be determined that the specific implementation of the present invention is only limited to these descriptions. For those of ordinary skill in the technical field to which the present invention belongs, without departing from the concept of the present invention, several simple deductions or substitutions can still be made, and all should be regarded as belonging to the protection scope of the present invention.

Claims

1. A distribution network cable fault locator, comprising: a detection instrument body (1); characterized in that it further comprises: a C-shaped detection end (2), the C-shaped detection end (2) is connected to the detection instrument body (1) through a wire (3); a U-shaped frame (5), 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), the top of the U-shaped frame (5) has a long frame (51) and a short frame (52), a fixed shaft (7) is rotatably connected to the inner side of the long frame (51), a hinge plate (6) is hinge-connected 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); a frame-shaped body (14), the frame-shaped body (14) is fixedly connected to the outer side of the short frame (52), a sliding plate (15) is slidably connected to the inner side of the frame-shaped body (14), a long groove (17) is formed in the side of the sliding plate (15), a limiting nail (18) is fixedly connected to the inner side of the frame-shaped body (14) and located inside the long groove (17), and an elastic block (16) is arranged above the limiting nail (18) inside the long groove (17); a steel wire rope (13), one end of the steel wire rope (13) is fixedly connected to the bottom of the sliding plate (15).

2. The distribution network cable fault locator according to claim 1, characterized in that the long rod (4) comprises: a rod body (41), 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, characterized in that a threaded connection cylinder (11) is fixedly connected to the bottom of the U-shaped frame (5), and the threaded head (43) is in threaded cooperation with the threaded connection cylinder (11).

4. The distribution network cable fault locator according to claim 3, characterized in that a wire frame (12) is fixedly connected to the side of the threaded connection cylinder (11), the wire frame (12) has a guide hole, and the steel wire rope (13) passes through the guide hole.

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

6. The distribution network cable fault locator according to claim 5, characterized in that a conical surface is arranged at one end of the second limit block (10) facing the movable shaft (8), and a conical surface is arranged at one end of the first limit block (9) facing the fixed shaft (7).

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

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

Images