Cable fault detector

Abstract

The utility model discloses a cable fault detector which is used for rapidly and accurately positioning cable faults. A conveying cavity is formed in the middle of the detector body, can convey a cable and is provided with a conveying structure, and the cable is clamped through conveying rollers and driven by driving equipment to move at a constant speed. Annular grooves and non-slip mats are arranged on the surfaces of the conveying rollers, so that the clamping stability is enhanced; the audio signal generator injects signals into the cable through the cable clamping piece, the fault sensing probe receives the signals, the shielding cover shields external interference, and the detection accuracy is ensured. A display screen and a control panel are arranged on the upper side of the detector and used for displaying fault information and operation control. During detection, a cable is placed from the two ends of the conveying cavity, an audio signal is transmitted in the cable, and signal change indicates a fault position and is displayed through the display screen; the device improves the cable fault detection efficiency and accuracy, and has a high practical value.

Description

Technical Field

[0001] This utility model relates to the field of cable testing instrument technology, specifically a cable fault detector. Background Technology

[0002] Early cables suffered from poor material quality and funding shortages. Coupled with a lack of awareness of cable installation and protection, cable installation lacked standards and markings, cable aging, and termite infestation, resulting in a large number of cables suffering varying degrees of damage, frequent power outages, and the need for timely repairs. This seriously affects people's work and lives. Therefore, cables need to be inspected and maintained frequently.

[0003] Utility model patent CN220188639U discloses a rapid cable fault location detector, including a detection host. A mounting groove is provided on one side of the detection host, and an electromagnet is fixedly connected to the inner wall of the mounting groove. A heat sink is fixedly connected to each side of the detection host. The electromagnet includes an electric slot, a battery, wires, a metal rod, a winding groove, and a fixing hole. The battery is electrically connected to the inner wall of the electric slot, and a wire is fixedly connected to each end of the battery. The metal rod is fixedly connected to the inner wall of the mounting groove, and a winding groove is provided on the outer side of the metal rod. A wire is electrically connected to the outer side of the winding groove. A fixing hole is provided on one side of the metal rod, and a cable is movably connected to the inner cavity of the fixing hole. An identifier is movably connected to the outer side of the cable. This facilitates automatic detection of cable breaks, enabling accurate repair of the cable break points, saving manpower, shortening repair time, and significantly improving repair efficiency.

[0004] However, the device uses electromagnetic attraction to drive the recognition unit to move, which is not very reliable. Utility Model Content

[0005] In view of the technical problems in the prior art, the present invention provides a cable fault detector, the purpose of which is to solve the above problems.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A cable fault detector includes a detector body with a transversely opened conveying cavity at both ends for cable transport in the middle of the detector body. The conveying cavity is provided with a conveying structure that can drive the cable to move at a constant speed along the direction of the conveying cavity. An audio signal generator is provided on the side wall of the detector body. One end of the audio signal generator clamps the battery cell at one end of the cable through a cable clamp, and the other end is electrically connected to the detector body. A fault sensing probe that receives the signal from the audio signal generator is provided at the corresponding position of the cable in the conveying cavity.

[0008] Preferably, the conveying structure includes a plurality of conveying rollers arranged horizontally and longitudinally within the conveying cavity. The plurality of conveying rollers are symmetrically arranged on the upper and lower sides of the cable and abut against the upper and lower surfaces of the cable. The plurality of conveying rollers are driven by a driving device.

[0009] Preferably, the surfaces of the plurality of conveying rollers are provided with annular grooves that are adapted to the outer surface of the cable at the locations corresponding to the cable.

[0010] Preferably, an anti-slip pad is adhered inside the annular groove.

[0011] Preferably, the fault sensing probe in the conveying cavity is provided with a shielding cover that is sleeved around the cable, and the shielding cover is fixed in the conveying cavity by a support frame.

[0012] Preferably, the detector body is equipped with a display screen and a control panel on its upper side.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] This invention provides a cable fault detector. The cable is clamped by a conveying roller in the conveying chamber and driven and rotated by a drive device to achieve cable conveying with high reliability. At the same time, an audio signal generator injects a specific frequency audio signal into the end of the cable. The generated signal can propagate in the cable and produce obvious signal changes at the break point. The fault sensing probe receives the signal of the moving cable, and the location where the signal disappears is the break point, thus enabling quick and accurate location of the cable fault. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall front view structure of a cable fault detector according to the present invention;

[0016] Figure 2 This is a schematic diagram of the internal structure of a cable fault detector according to the present invention;

[0017] Figure 3 This is a top view schematic diagram of the conveyor roller structure of a cable fault detector according to this utility model.

[0018] In the diagram: 1. Detector body; 2. Conveying cavity; 3. Conveying structure; 31. Conveying roller; 311. Annular groove; 312. Anti-slip pad; 32. Drive device; 4. Audio signal generator; 5. Cable clamp; 6. Fault detection probe; 7. Shielding cover; 8. Support frame; 9. Display screen; 10. Control panel. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] Please see Figure 1-3 This application proposes a cable fault detector, including a detector body 1. The detector body 1 has a transversely opened conveying cavity 2 with openings at both ends for cable conveying. The conveying cavity 2 is provided with a conveying structure 3 for driving the cable to move at a uniform speed along the direction of the conveying cavity 2. An audio signal generator 4 is provided on the side wall of the detector body 1. One end of the generator 4 clamps the battery core of one end of the cable through a cable clamp 5, and the other end is electrically connected to the detector body 1. A fault sensing probe 6 is provided in the conveying cavity 2 at the corresponding position of the cable for receiving the signal emitted by the audio signal generator 4.

[0021] To ensure reliable cable transport, the transport structure 3 includes multiple horizontally and longitudinally arranged transport rollers 31 within the transport cavity 2. These rollers 31 are symmetrically arranged on the upper and lower sides of the cable and abut against the upper and lower surfaces of the cable. The transport rollers 31 are driven to rotate by a drive device 32 (which can be a motor, belt drive, or other similar devices), thereby causing the cable to move at a uniform speed. To better clamp the cable, the surfaces of the multiple transport rollers 31 are provided with annular grooves 311 that are adapted to the outer surface of the cable. Anti-slip pads 312 are adhered inside the annular grooves 311, further improving the stability and reliability of cable transport.

[0022] To improve the accuracy of fault detection, a shielding cover 7 is provided inside the conveying cavity 2 corresponding to the fault sensing probe 6, which is sleeved around the cable. The shielding cover 7 is fixed inside the conveying cavity 2 by the support frame 8 to shield external interference signals and ensure that the fault sensing probe 6 can accurately receive the signal emitted by the audio signal generator 4.

[0023] To facilitate operation and result display, the detector body 1 is equipped with a display screen 9 and a control panel 10 on its upper side. The display screen 9 is used to display relevant information about fault detection, such as signal strength and fault location. The control panel 10 is used by the operator to input commands to control the working status of the detector body 1, such as starting or stopping the conveying structure 3 and adjusting the parameters of the audio signal generator 4.

[0024] As described above, the cable fault detector of this invention can effectively achieve rapid and accurate location of cable faults. During cable fault detection, the cable is placed into the conveying chamber 2 through the openings at both ends. The cable is then moved at a constant speed by the clamping of the conveying roller 31 and the driving device 32. The audio signal generator 4 injects a specific frequency audio signal into the cable end through the cable clamping member 5. The signal propagates through the cable and produces a significant signal change at the break point. The fault sensing probe 6 receives the signal and displays the signal strength change on the display screen 9. When the signal disappears, the break point is located, thus achieving rapid and accurate fault location. This device greatly improves the efficiency and accuracy of cable fault detection and has high practical value.

[0025] Additionally: the operating mode of the audio signal generator 4, the receiving mode of the fault sensing probe 6, the processing and internal control mode of the detector body 1, and the control mode of the operation panel 10 by adjusting each component through the internal controller are all existing technologies and will not be elaborated on here.

[0026] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0027] In the description of this utility model, unless otherwise stated, "a plurality of" means two or more; the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0028] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A cable fault locator comprising a locator body (1), characterised in that, The detector body (1) has a transversely opened conveying cavity (2) with two openings in the middle for cable conveying. The conveying cavity (2) is provided with a conveying structure (3) that can drive the cable to move at a constant speed along the direction of the conveying cavity (2). The detector body (1) has an audio signal generator (4) on its side wall. One end of the audio signal generator (4) clamps the battery core of one end of the cable through a cable clamp (5), and the other end is electrically connected to the detector body (1). The conveying cavity (2) is provided with a fault sensing probe (6) that receives the signal from the audio signal generator (4) at the corresponding position of the cable.

2. The cable fault locator of claim 1, wherein, The conveying structure (3) includes multiple conveying rollers (31) arranged horizontally and longitudinally in the conveying cavity (2). The multiple conveying rollers (31) are symmetrically arranged on the upper and lower sides of the cable and abut against the upper and lower surfaces of the cable. The multiple conveying rollers (31) are driven by a driving device (32).

3. The cable fault locator of claim 2 wherein, The surfaces of the multiple conveying rollers (31) are provided with annular grooves (311) that are adapted to the outer surface of the cable.

4. The cable fault locator of claim 3 wherein, An anti-slip pad (312) is adhered inside the annular groove (311).

5. The cable fault locator of claim 1 wherein, The conveying cavity (2) is equipped with a shield (7) that is sleeved around the cable corresponding to the fault sensing probe (6). The shield (7) is fixed in the conveying cavity (2) by a support frame (8).

6. The cable fault locator according to any one of claims 1-5, wherein, The detector body (1) is equipped with a display screen (9) and a control panel (10) on its upper side.

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