Cable detection device

Abstract

The utility model discloses a cable detection device, which is characterized in that one ends of two oppositely arranged annular shells are rotationally hinged, the other ends of the two oppositely arranged annular shells are locked and connected, a magnetic ring is arranged in each of the two annular shells, a wire is wound on the circumferential outer wall of each magnetic ring, one annular shell is fixedly arranged at the top of a base, and the other annular shell is fixedly arranged at the bottom of the base. A plurality of universal wheels are arranged at the bottom of the base, a coaxial connector is arranged on the outer wall of the other annular shell, a through hole for a cable to penetrate through is formed in the center of the two annular shells, a plurality of mounting blocks are arranged on the circumferential inner wall of the through hole, and the two sides of each mounting block are each provided with a stand column. A plurality of roller shafts are rotationally connected between the two stand columns, and a plurality of protrusions are arranged in the middles of the roller shafts. According to the cable detection device provided by the utility model, on the basis of realizing detection of the cable, the convenience of multi-point detection of the cable is improved, and the situation that the cable skin is damaged in the moving process of the device is also greatly reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of cable detection, in particular to a cable detection device. Background Art

[0002] With the development of power system technology and urban construction, underground cables are becoming increasingly common. Current transformers are required during power cable installation, relocation, maintenance, and troubleshooting to locate and identify cables in dense cable trenches. Current transformers operate on the principle of electromagnetic induction. The magnetic lines of force generated by the AC current passing through the power cable core induce a voltage at both ends of the metal sheath hinge, thus forming an induced current. Alternatively, a generator can generate periodic unipolar voltage pulses that are fed into the cable to be identified. Current transformers can be used for measurement and identification without power outages.

[0003] In the prior art, when performing multi-point detection on a cable, the current transformer is generally installed and disassembled multiple times, and the cable is re-clamped for measurement. This is very inconvenient in actual operation, and multiple operations also increase the risk of damaging the cable. Utility Model Content

[0004] The purpose of the utility model is to provide a cable detection device, which improves the convenience of multi-point detection of the cable on the basis of realizing cable detection, and greatly reduces the situation where the device damages the cable sheath during movement.

[0005] To achieve the above-mentioned object, the technical solution adopted by the present invention is as follows: a cable detection device, comprising: an annular housing, wherein the annular housing is provided with two annular housings, one end of the two annular housings arranged opposite to each other is rotatably hinged, and the other end is locked and connected, and a magnetic ring is provided inside each of the two annular housings, and a wire is wound around the circumferential outer wall of the magnetic ring, one of the annular housings is fixedly mounted on the top of a base, and a plurality of universal wheels are provided at the bottom of the base, and a coaxial connector is provided on the outer wall of the other annular housing, and one end of the coaxial connector is electrically connected to the wire, and when the two annular housings are in a locked state, a through hole for the cable to pass through is formed at the central position of the two annular housings;

[0006] A plurality of mounting blocks are arranged on the circumferential inner wall of the through hole, a column is arranged on both sides of the mounting block, and a plurality of roller shafts are rotatably connected between the two columns, and a plurality of protrusions are arranged in the middle of the roller shafts.

[0007] The further improved scheme in the above technical scheme is as follows:

[0008] 1. In the above solution, an electric contact plate is provided at both ends of the magnetic ring and on opposite side surfaces of the two annular shells.

[0009] 2. In the above solution, the mounting blocks are arranged at equal intervals along the circumference of the through hole.

[0010] 3. In the above solution, the mounting block is provided with an arc-shaped structure that matches the surface of the cable on the side opposite to the annular housing.

[0011] 4. In the above solution, the ratio of the thickness of the mounting block to the diameter of the protrusion is 0.8~1.2.

[0012] Due to the application of the above technical solution, the utility model has the following advantages compared with the prior art:

[0013] The cable detection device of the present invention has two annular shells arranged opposite to each other, one end of which is rotatably hinged, and the other end is locked and connected, and a magnetic ring is respectively provided inside the two annular shells, and a wire is wound around the circumferential outer wall of the magnetic ring. One annular shell is fixedly installed on the top of the base, and a plurality of universal wheels are provided at the bottom of the base. A through hole for the cable to pass through is formed at the central position of the two annular shells, and a plurality of mounting blocks are provided on the circumferential inner wall of the through hole. A column is provided on both sides of the mounting block, and a roller shaft is rotatably connected between the two columns. A plurality of protrusions are provided in the middle of the roller shaft. By clamping the cable inside the through hole, the cable can be detected, and the movement of the entire device is facilitated by the universal wheels of the base and the roller shaft on the inner wall of the through hole, thereby improving the convenience of multi-point detection of the cable, greatly reducing the situation where the device damages the cable skin during movement, improving the safety of the cable, and improving the detection efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Attachment Figure 1 This is a front view of the overall structure of the cable detection device of the utility model;

[0015] Attachment Figure 2 This is a schematic diagram of the internal structure of the cable detection device of the utility model;

[0016] Attachment Figure 3 For this utility model Figure 1 Enlarged view of point A.

[0017] In the above figures: 1. annular shell; 2. mounting plate; 3. lock; 4. through hole; 5. electric contact plate; 6. wire; 7. magnetic ring; 8. coaxial connector; 9. column; 10. roller shaft; 11. base; 12. universal wheel; 13. mounting block; 14. protrusion. DETAILED DESCRIPTION

[0018] The present invention can be further understood through the specific embodiments given below, but they are not intended to limit the present invention.

[0019] Embodiment 1: A cable detection device, comprising: an annular housing 1, wherein two annular housings 1 are provided, one end of the two annular housings 1 being rotatably hinged and the other end being locked and connected, and a magnetic ring 7 is provided inside each of the two annular housings 1, and a conductor 6 is wound around the circumferential outer wall of the magnetic ring 7, one of the annular housings 1 is fixedly mounted on the top of a base 11, and a plurality of universal wheels 12 are provided at the bottom of the base 11, and a coaxial connector 8 is provided on the outer wall of the other annular housing 1, and one end of the coaxial connector 8 is electrically connected to the conductor 6, and when the two annular housings 1 are in a locked state, a through hole 4 for the cable to pass through is formed at the central position of the two annular housings 1;

[0020] The cable to be tested is placed on the annular housing, and then the annular housing is fixed by holding the base. Then the other annular housing is rotated around the hinge axis, so that the cable is clamped between the two annular housings and the electrical contact plates of the two annular housings are in contact and connected. The tester then locks the two sets of housings together by cooperating with the hinge and the lock buckle to achieve the locking of the two annular housings.

[0021] A plurality of mounting blocks 13 are provided on the circumferential inner wall of the through hole 4. A column 9 is provided on both sides of the mounting block 13. A plurality of roller shafts 10 are rotatably connected between the two columns 9. A plurality of protrusions 14 are provided in the middle of the roller shafts 10.

[0022] At the same time, there is a roller shaft between the two columns of the mounting plate. Since the roller shaft can roll, after the inspection of one part of the cable is completed, the device can be slid on the cable through it. There is no need for the inspector to disassemble it and then install it in another place, which improves the overall inspection efficiency and greatly reduces the labor intensity of the inspector.

[0023] An electric contact plate 5 is provided at both ends of the magnetic ring 7 and on opposite side surfaces of the two annular shells 1 .

[0024] There are two mounting blocks 13 , which are symmetrically arranged in the upper and lower parts of the through hole 4 .

[0025] The mounting block 13 is provided with an arc-shaped structure on the side opposite to the annular housing 1 to match the surface of the cable; and arc chamfers are provided on both sides of the arc-shaped structure to further reduce the risk of damaging the cable sheath.

[0026] The ratio of the thickness of the mounting block 13 to the diameter of the protrusion 14 is 0.8.

[0027] The plurality of roller shafts 10 are distributed at intervals along the length direction of the column 9 .

[0028] Embodiment 2: A cable detection device, comprising: an annular housing 1, wherein two annular housings 1 are provided, one end of the two annular housings 1 being rotatably hinged and the other end being locked and connected, and a magnetic ring 7 is provided inside each of the two annular housings 1, and a conductor 6 is wound around the circumferential outer wall of the magnetic ring 7, one of the annular housings 1 is fixedly mounted on the top of a base 11, and a plurality of universal wheels 12 are provided at the bottom of the base 11, and a coaxial connector 8 is provided on the outer wall of the other annular housing 1, and one end of the coaxial connector 8 is electrically connected to the conductor 6, and when the two annular housings 1 are in a locked state, a through hole 4 for the cable to pass through is formed at the central position of the two annular housings 1;

[0029] A plurality of mounting blocks 13 are provided on the circumferential inner wall of the through hole 4. A column 9 is provided on both sides of the mounting block 13. A plurality of roller shafts 10 are rotatably connected between the two columns 9. A plurality of protrusions 14 are provided in the middle of the roller shafts 10.

[0030] By clamping the cable inside the through-hole, the cable can be tested. The universal wheels on the base and the roller shafts on the inner wall of the through-hole facilitate the movement of the entire device, thereby improving the convenience of multi-point detection of the cable, greatly reducing the risk of damage to the cable sheath during movement, improving the safety of the cable, and improving the detection efficiency.

[0031] An electric contact plate 5 is provided at both ends of the magnetic ring 7 and on opposite side surfaces of the two annular shells 1 .

[0032] The above-mentioned mounting blocks 13 are arranged at equal intervals along the circumference of the through hole 4; four of the above-mentioned mounting blocks 13 are provided.

[0033] The ratio of the thickness of the mounting block 13 to the diameter of the protrusion 14 is 1.2.

[0034] A mounting plate 2 is provided on one end of the annular housing 1 away from the hinge shaft.

[0035] The mounting plate 2 is provided with a lock buckle 3 that cooperates with each other.

[0036] The working principle is:

[0037] When in use, the cable to be tested is placed on the annular housing, and then the annular housing on the base is fixed. Then the other annular housing is rotated around the hinge axis, so that the cable is clamped between the two annular housings, and the electrical contact plates of the two annular housings are in contact and connected. The tester then locks the two sets of housings together by cooperating with the hinge and the lock buckle to achieve the locking of the two annular housings.

[0038] At the same time, there is a roller shaft between the two columns of the mounting plate. Since the roller shaft can roll, after the inspection of one part of the cable is completed, the device can be slid on the cable through it. There is no need for the inspector to disassemble it and then install it in another place, which improves the overall inspection efficiency and greatly reduces the labor intensity of the inspector.

[0039] When using the above-mentioned cable detection device, on the basis of realizing cable detection, the universal wheels on the base and the roller shafts on the inner wall of the through hole facilitate the movement of the entire device, thereby improving the convenience of multi-point detection of the cable, and greatly reducing the situation where the device damages the cable skin during movement, thereby improving the safety of the cable and improving the detection efficiency.

[0040] The above embodiments are intended only to illustrate the technical concepts and features of the present invention. Their purpose is to enable those familiar with the art to understand the contents of the present invention and implement them accordingly. They are not intended to limit the scope of protection of the present invention. Any equivalent changes or modifications based on the spirit of the present invention are intended to be included in the scope of protection of the present invention.

Claims

1. A cable detection device, comprising: An annular shell (1), characterized in that: the annular shells (1) are provided with two, one end of the two annular shells (1) arranged opposite to each other is rotatably hinged, and the other end is locked and connected, and a magnetic ring (7) is provided inside each of the two annular shells (1), and a wire (6) is wound around the circumferential outer wall of the magnetic ring (7), one of the annular shells (1) is fixedly mounted on the top of a base (11), and a plurality of universal wheels (12) are provided at the bottom of the base (11), and a coaxial connector (8) is provided on the outer wall of the other annular shell (1), and one end of the coaxial connector (8) is electrically connected to the wire (6), and when the two annular shells (1) are in a locked state, a through hole (4) for the cable to pass through is formed at the central position of the two annular shells (1); A plurality of mounting blocks (13) are provided on the circumferential inner wall of the through hole (4), a column (9) is provided on both sides of the mounting block (13), and a plurality of roller shafts (10) are rotatably connected between the two columns (9), and a plurality of protrusions (14) are provided in the middle of the roller shafts (10).

2. The cable detection device according to claim 1, characterized in that: An electric contact plate (5) is provided at both ends of the magnetic ring (7) and on opposite side surfaces of the two annular shells (1).

3. The cable detection device according to claim 1, characterized in that: The mounting blocks (13) are arranged at equal intervals along the circumference of the through hole (4).

4. The cable detection device according to claim 1, characterized in that: The mounting block (13) is provided with an arc-shaped structure that matches the surface of the cable on a side opposite to the annular housing (1).

5. The cable detection device according to claim 1, characterized in that: The ratio of the thickness of the mounting block (13) to the diameter of the protrusion (14) is 0.8-1.2.

Images