A current probe for cable fault detection

Abstract

The present invention belongs to the technical field of current probes, and specifically relates to a current probe for cable fault detection, comprising a probe body, one end of the probe body being connected to a storage mechanism via a disassembly and assembly mechanism, one side of the storage mechanism being provided with a retracting and releasing mechanism, and the inner side of the storage mechanism being provided with a detection mechanism; the problem to be solved in the present scheme is that currently, when the current probe is used corresponding to cables of different sizes, probe clamps of different sizes need to be prepared, resulting in the need to carry a variety of probe clamps of different sizes, which is rather troublesome; the present scheme uses a designed detection mechanism, which, when in use, is connected in series with each other through a movable detection seat of the detection mechanism, and when in use, the detection mechanism is pulled out of the storage mechanism and wrapped around the cable for detection, and when in use, a detection mechanism of corresponding length can be pulled out according to the thickness of the cable for detection, and a variety of cables of different thicknesses can be used when in use, thereby reducing the amount of equipment carried during detection, which is more convenient.

Description

Technical Field

[0001] The invention belongs to the technical field of current probes, and in particular relates to a current probe used for cable fault detection. Background Art

[0002] ‌A current probe is a device used to measure the current in a wire. It is designed based on the Faraday principle and is essentially a transformer with 1 turn. The current probe can convert the current signal flowing through the wire into a voltage signal for easy measurement using an oscilloscope. The current probe can monitor the current changes in the cable in real time, helping to quickly locate the fault point.

[0003] The existing current probe is used to detect the outside of the cable by clamping the probe when in use. The probe clamp is usually used. When using it, different sized probe clamps need to be prepared for use with cables of different sizes, which results in the need to carry multiple probe clamps of different sizes, which is quite troublesome. Therefore, it is necessary to design a current probe for cable fault detection to solve the above problem. Summary of the invention

[0004] The object of the present invention is to provide a current probe for cable fault detection to solve the problems raised in the above background technology.

[0005] To achieve the above object, the present invention provides the following technical solution: a current probe for cable fault detection, comprising a probe body, one end of the probe body is connected to a storage mechanism through a disassembly mechanism, one side of the storage mechanism is provided with a retracting mechanism, and the inner side of the storage mechanism is provided with a detection mechanism;

[0006] The detection mechanism comprises a fixed detection seat and a movable detection seat installed in the storage mechanism, the movable detection seats are rotatably connected by a connecting mechanism, one end of the movable detection seat is connected to a connecting hook, one end of the fixed detection seat is provided with a connecting groove, the inner side of the connecting groove is provided with a connecting column, and one end of the connecting hook is hooked on the connecting column;

[0007] The storage mechanism includes a storage box, a storage column is rotatably installed on the inner side of the storage box, a positioning plate is provided at one end of the storage box, an outlet is provided on the lower side of the end of the storage box, the outlet is connected to the positioning plate and the interior of the storage box, and one end of the storage column is connected to the storage mechanism.

[0008] Preferably, a magnetic core is disposed on the inner side of the fixed detection seat and the movable detection seat, coils are disposed at both ends of the magnetic core, and a coupling slit is formed on one side of the fixed detection seat and the movable detection seat.

[0009] Preferably, a heat dissipation film sleeve is provided on one side of the magnetic core, thermal conductive silicone oil is provided inside the heat dissipation film sleeve, a heat dissipation plate is provided on the outside of the heat dissipation film sleeve, a heat sink is provided on one side of the fixed detection seat and the movable detection seat, and one side of the heat sink is attached to the heat dissipation plate.

[0010] Preferably, limiting grooves are provided on the inner sides of the fixed detection seat and the movable detection seat, and the magnetic core and the coil are located in the limiting grooves.

[0011] Preferably, the retractable mechanism includes a transmission box fixed on the storage box, a transmission shaft is rotatably mounted on the inner side of the upper end of the transmission box, a retractable knob is fixedly mounted on the upper end of the transmission shaft, a retractable worm is fixedly mounted on the lower end of the transmission shaft, a retractable worm gear is meshed with a retractable worm wheel on one side of the retractable worm gear, and the retractable worm wheel is fixedly mounted on one end of the storage column.

[0012] Preferably, the connecting mechanism includes a rotating groove opened at both ends of the fixed detection seat and a rotating plate installed in the rotating groove, a rotating column is installed on the inner side of the rotating groove, and rotating holes are provided at both ends of the rotating plate. The rotating plate is rotatably installed in the rotating groove through the rotating holes and the rotating column.

[0013] Preferably, sliding grooves are provided at both ends of the rotating groove, a buffer spring is fixedly installed at one end of the sliding groove, a sliding seat is fixedly installed at one end of the buffer spring, the sliding seat is slidably installed in the sliding groove, and the rotating column is fixedly installed on the sliding seat.

[0014] Preferably, the disassembly and assembly mechanism comprises a mounting socket fixed at one end of the probe body, the mounting socket is inserted into a storage box, a knob screw is provided on one side of the storage box, and the mounting socket is fixed to the probe body by the knob screw.

[0015] Preferably, a junction box is fixedly installed on one side of the storage box, a probe wiring is arranged on the inner side of the junction box, one end of the probe wiring passes through the storage box and is fixedly installed with a connecting plug, a connecting socket is arranged on the inner side of the mounting socket, the connecting plug is plugged into the connecting socket, and a power connection ring is provided at the other end of the probe wiring, the power connection ring is fixed in the junction box, a brush is fixedly installed on one end of the storage column, the brush is located in the power connection ring, and a connecting wire at one end of the movable detection seat passes through the storage column and is connected to the brush.

[0016] Preferably, a positioning groove is provided on one side of the mounting socket, a positioning slide is provided on one side of the connecting plug, the connecting plug is slidably installed in the mounting socket through the positioning slide and the positioning groove, and the connecting wire of the fixed detection socket is connected to one end of the probe wiring.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] 1. Through the designed detection mechanism, the movable detection seats of the detection mechanism are rotated in series when in use. When in use, the detection mechanism is pulled out from the storage mechanism and wrapped around the cable for detection. When in use, the detection mechanism of corresponding length can be pulled out according to the thickness of the cable for detection. When in use, it can be suitable for cables of various thicknesses, thereby reducing the amount of equipment carried during detection.

[0019] 2. Through the designed retractable mechanism, when in use, the transmission of the retractable worm wheel and the retractable worm on the retractable mechanism drives the storage column to rotate, thereby completing the release and retraction of the detection mechanism, and the self-locking effect of the retractable worm wheel and the retractable worm ensures that the detection mechanism is more stable when moving and stopping during use.

[0020] 3. Through the designed disassembly and assembly mechanism, the storage mechanism and the probe body can be quickly disassembled and assembled through the disassembly and assembly mechanism during use, and the electrical connection between the detection mechanism and the probe body is conveniently connected in conjunction with the connection socket and the connection plug.

[0021] 4. Through the designed connecting mechanism, the detection mechanisms are connected by rotation during use. When the detection mechanism is clamped on the cable, it is supported by the sliding seat and the buffer spring to reduce fatigue damage to the connection of the detection mechanism due to long-term use and pulling. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a structural schematic diagram of the present invention;

[0023] Figure 2 It is a schematic diagram of the storage structure of the present invention;

[0024] Figure 3 It is a schematic diagram of the structure of the detection seat used in the present invention;

[0025] Figure 4 It is a schematic diagram of the structure of the detection seat of the present invention;

[0026] Figure 5 It is a schematic diagram of the inner structure of the detection seat of the present invention;

[0027] Figure 6 For the present invention Figure 4 The enlarged structural diagram at A in the middle;

[0028] Figure 7 It is a schematic diagram of the disassembly and assembly mechanism structure of the present invention;

[0029] Figure 8 It is a schematic diagram of the structure of the mounting socket of the present invention;

[0030] In the figure: 1. probe body; 2. storage mechanism; 21. storage box; 22. storage column; 23. outlet; 24. positioning plate; 3. retracting mechanism; 31. transmission box; 32. retracting knob; 33. transmission shaft; 34. retracting worm; 35. retracting worm wheel; 4. detection mechanism; 41. fixed detection seat; 42. movable detection seat; 43. coupling gap; 44. magnetic core; 441. heat dissipation film sleeve; 442. heat dissipation plate; 443. heat sink; 45. coil; 46. Connecting groove; 47, connecting column; 48, connecting hook; 5, connecting mechanism; 51, rotating plate; 52, rotating column; 53, sliding seat; 54, sliding groove; 55, buffer spring; 56, rotating groove; 57, rotating hole; 6, disassembly and assembly mechanism; 61, mounting socket; 62, knob screw; 63, connecting socket; 64, connecting plug; 641, positioning slide; 642, positioning slide; 65, junction box; 66, probe wiring; 67, connecting ring; 68, brush. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0032] Example 1: Please refer to Figures 1 to 8 The present invention provides a technical solution: a current probe for cable fault detection, comprising a probe body 1, one end of the probe body 1 is connected to a storage mechanism 2 through a disassembly mechanism 6, a retracting mechanism 3 is arranged on one side of the storage mechanism 2, and a detection mechanism 4 is arranged on the inner side of the storage mechanism 2;

[0033] The detection mechanism 4 includes a fixed detection seat 41 and a movable detection seat 42 installed in the storage mechanism 2. The movable detection seat 42 is rotatably connected by a connecting mechanism 5. One end of the movable detection seat 42 is connected to a connecting hook 48. One end of the fixed detection seat 41 is provided with a connecting groove 46. A connecting column 47 is provided on the inner side of the connecting groove 46. One end of the connecting hook 48 is hooked on the connecting column 47. The movable detection seat 42 is rotated into an annular hoop outside the cable by a rotating column 52 and a rotating plate 51. The movable detection seat 42 is connected to the fixed detection seat 41 by hooking the connecting hook 48 on the connecting column 47. The inner sides of the fixed detection seat 41 and the movable detection seat 42 are both provided with a magnetic core 44. The two ends of the magnetic core 44 are provided with a coil 45. A coupling seam 43 is provided on one side of the measuring seat 41 and the movable detecting seat 42; a heat dissipation film sleeve 441 is provided on one side of the magnetic core 44, and heat-conducting silicone oil is provided inside the heat dissipation film sleeve 441, and a heat dissipation plate 442 is provided on the outer side of the heat dissipation film sleeve 441; a heat sink 443 is provided on one side of the fixed detecting seat 41 and the movable detecting seat 42, and one side of the heat sink 443 is attached to the heat sink 442. When in use, the heat generated by the magnetic core 44 is absorbed by the heat dissipation film sleeve 441 and the internal silicone oil, and then quickly dissipated outwards in cooperation with the heat sink 442 and the heat sink 443; a limiting groove is provided on the inner side of the fixed detecting seat 41 and the movable detecting seat 42, and the magnetic core 44 and the coil 45 are located in the limiting groove, so that the installation and use of the magnetic core 44 and the coil 45 are more stable;

[0034] The storage mechanism 2 includes a storage box 21, a storage column 22 is rotatably installed inside the storage box 21, a positioning plate 24 is provided at one end of the storage box 21, an outlet 23 is provided at the lower side of the end of the storage box 21, the outlet 23 is connected to the positioning plate 24 and the inside of the storage box 21, one end of the storage column 22 is connected to the storage mechanism 3, and the movable detection seat 42 is rolled up and stored through the storage column 22; the storage mechanism 3 includes a transmission box 31 fixed on the storage box 21, a transmission shaft 33 is rotatably installed inside the upper end of the transmission box 31, and the transmission shaft 33 is A retractable knob 32 is fixedly installed on the upper end of the movable shaft 33, and a retractable worm 34 is fixedly installed on the lower end of the transmission shaft 33. A retractable worm wheel 35 is meshed with one side of the retractable worm 34, and the retractable worm wheel 35 is fixedly installed on one end of the storage column 22. When in use, the transmission shaft 33 is rotated by the retractable knob 32, and the transmission shaft 33 drives the retractable worm 34 to rotate, and the retractable worm 34 drives the retractable worm wheel 35 and the storage column 22 to rotate. The self-locking effect of the retractable worm 34 and the retractable worm wheel 35 ensures that the movable detection seat 42 is more stable after installation.

[0035] From the above description, it can be seen that the present invention has the following beneficial effects: when in use, the movable detection seat 42 of the detection mechanism 4 is rotated in series with each other, and when in use, the detection mechanism 4 is pulled out from the storage mechanism 2 and wrapped around the cable for detection. When in use, the detection mechanism 4 of the corresponding length can be pulled out according to the thickness of the cable for detection, and when in use, it can be suitable for cables of various thicknesses, thereby reducing the amount of equipment carried during detection.

[0036] The retracting and releasing mechanism 3 adopting the above-mentioned technical solution, when in use, drives the storage column 22 to rotate through the transmission of the retracting and releasing worm wheel 35 and the retracting and releasing worm screw 34 on the retracting and releasing mechanism 3, thereby completing the release and retraction of the detection mechanism 4, and the self-locking effect of the retracting and releasing worm wheel 35 and the retracting and releasing worm screw 34 ensures that the detection mechanism 4 is more stable when moving and stopping during use.

[0037] Example 2: Please refer to Figures 1 to 8 As shown, on the basis of the first embodiment, the present invention provides a technical solution: the disassembly and assembly mechanism 6 includes a mounting socket 61 fixed at one end of the probe body 1, the mounting socket 61 is inserted into the storage box 21, a knob screw 62 is provided on one side of the storage box 21, and the mounting socket 61 is fixed to the probe body 1 by the knob screw 62. When the storage mechanism 2 needs to be disassembled, inspected and replaced, it is only necessary to unscrew the knob screw 62 and pull out the mounting socket 61; a junction box 65 is fixedly installed on one side of the storage box 21, a probe wiring 66 is provided on the inner side of the junction box 65, one end of the probe wiring 66 passes through the storage box 21 and is fixedly installed with a connecting plug 64, a connecting socket 63 is provided on the inner side of the mounting socket 61, the connecting plug 64 is plugged into the connecting socket 63, and the other end of the probe wiring 66 is provided There is an electric connection ring 67, which is fixed in the junction box 65. A brush 68 is fixedly installed at one end of the storage column 22, and the brush 68 is located in the electric connection ring 67. The connecting wire at one end of the movable detection seat 42 passes through the storage column 22 and is connected to the brush 68. After removing and pulling out the mounting socket 61, the connecting plug 64 can be pulled out from the connecting socket 63; a positioning groove 642 is provided on one side of the mounting socket 61, and a positioning slide seat 641 is provided on one side of the connecting plug 64. The connecting plug 64 is slidably installed in the mounting socket 61 through the positioning slide seat 641 and the positioning groove 642. The connecting wire of the fixed detection seat 41 is connected to one end of the probe wiring 66. When in use, the guiding positioning of the positioning groove 642 and the positioning slide seat 641 facilitates the connection between the connecting plug 64 and the connecting socket 63.

[0038] The disassembly and assembly mechanism 6 of the above technical solution can quickly disassemble and assemble the storage mechanism 2 and the probe body 1 during use, and cooperate with the connection socket 63 and the connection plug 64 to facilitate the electrical connection between the detection mechanism 4 and the probe body 1.

[0039] For further information, see Figures 1 to 8The connecting mechanism 5 includes a rotating groove 56 provided at both ends of the fixed detection seat 41 and a rotating plate 51 installed in the rotating groove 56. A rotating column 52 is installed on the inner side of the rotating groove 56. Rotating holes 57 are provided at both ends of the rotating plate 51. The rotating plate 51 is rotatably installed in the rotating groove 56 through the rotating holes 57 and the rotating column 52. The movable detection seat 42 is rotatably connected by the rotating plate 51 and the rotating column 52 cooperating to rotate; sliding grooves 54 are provided at both ends of the rotating groove 56. A buffer spring 55 is fixedly installed at one end of the sliding groove 54. A sliding seat 53 is fixedly installed at one end of the buffer spring 55. The sliding seat 53 is slidably installed in the sliding groove 54, and the rotating column 52 is fixedly installed on the sliding seat 53. The rotating column 52 and the sliding seat 53 are driven by the rotating plate 51 to slide and press on the buffer spring 55 for buffering, thereby ensuring that the hoop is more stable on the cable, and buffering is performed when subjected to force to reduce fatigue damage.

[0040] The connecting mechanism 5 of the above technical solution is used, and the detection mechanisms 4 are rotatably connected through the connecting mechanism 5 when in use. When the detection mechanism 4 is clamped on the cable, it is supported by the sliding seat 53 and the buffer spring 55, thereby reducing fatigue damage to the connection of the detection mechanism 4 due to long-term use and pulling.

[0041] The working principle and use process of the present invention are as follows: when in use, the transmission shaft 33 is rotated by the retracting knob 32, the transmission shaft 33 drives the retracting worm 34 to rotate, the retracting worm 34 drives the retracting worm wheel 35 and the storage column 22 to rotate, thereby bringing out the movable detection seat 42, and the movable detection seat 42 is rotated into an annular hoop outside the cable by the rotating column 52 and the rotating plate 51, the movable detection seat 42 is connected to the fixed detection seat 41 by the connecting hook 48 hooked on the connecting column 47, and the rotating plate 51 drives the rotating column 52 and the sliding seat 53 to slide and press The buffer is applied on the buffer spring 55 to ensure that the hoop is more stable on the cable, and then the position is moved to detect the cable through the magnetic core 44 and the coil 45. During the detection, the heat generated by the magnetic core 44 is absorbed by the heat dissipation film sleeve 441 and the internal silicone oil, and then the heat is dissipated outwards quickly in conjunction with the heat dissipation plate 442 and the heat sink 443. When the storage mechanism 2 needs to be disassembled, repaired or replaced, it is only necessary to unscrew the knob screw 62, pull out the installation socket 61, and pull out the connecting plug 64 from the connecting socket 63, and then install the new storage mechanism 2 on the probe body 1 for continued use.

[0042] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0043] The above description is only used to illustrate the technical solution of the present invention rather than to limit it. Other modifications or equivalent substitutions made to the technical solution of the present invention by ordinary technicians in this field should be included in the scope of the claims of the present invention as long as they do not depart from the spirit and scope of the technical solution of the present invention.

Claims

1. A current probe for cable fault detection, comprising a probe body (1), characterized in that: One end of the probe body (1) is connected to a storage mechanism (2) via a disassembly mechanism (6); a retracting mechanism (3) is provided on one side of the storage mechanism (2); and a detection mechanism (4) is provided on the inner side of the storage mechanism (2); The detection mechanism (4) comprises a fixed detection seat (41) and a movable detection seat (42) installed in the storage mechanism (2); the movable detection seat (42) is rotatably connected to each other via a connecting mechanism (5); one end of the movable detection seat (42) is connected to a connecting hook (48); one end of the fixed detection seat (41) is provided with a connecting groove (46); a connecting column (47) is provided inside the connecting groove (46); one end of the connecting hook (48) is hooked on the connecting column (47); The storage mechanism (2) comprises a storage box (21), a storage column (22) is rotatably mounted inside the storage box (21), a positioning plate (24) is provided at one end of the storage box (21), an outlet (23) is provided at the lower side of the end of the storage box (21), the outlet (23) is communicated with the positioning plate (24) and the interior of the storage box (21), and one end of the storage column (22) is connected to the storage mechanism (3); The connecting mechanism (5) comprises a rotating groove (56) provided at both ends of the fixed detection seat (41) and a rotating plate (51) installed in the rotating groove (56); a rotating column (52) is installed inside the rotating groove (56); rotating holes (57) are provided at both ends of the rotating plate (51); and the rotating plate (51) is rotatably installed in the rotating groove (56) via the rotating holes (57) and the rotating column (52).

2. A current probe for cable fault detection according to claim 1, characterized in that: A magnetic core (44) is disposed on the inner side of the fixed detection seat (41) and the movable detection seat (42), a coil (45) is disposed at both ends of the magnetic core (44), and a coupling slit (43) is provided on one side of the fixed detection seat (41) and the movable detection seat (42).

3. A current probe for cable fault detection according to claim 2, characterized in that: A heat dissipation film sleeve (441) is provided on one side of the magnetic core (44), heat-conducting silicone oil is provided inside the heat dissipation film sleeve (441), a heat dissipation plate (442) is provided on the outside of the heat dissipation film sleeve (441), and a heat dissipation fin (443) is provided on one side of the fixed detection seat (41) and the movable detection seat (42), and one side of the heat dissipation fin (443) is attached to the heat dissipation plate (442).

4. A current probe for cable fault detection according to claim 2, characterized in that: Limiting grooves are provided on the inner sides of the fixed detection seat (41) and the movable detection seat (42), and the magnetic core (44) and the coil (45) are located in the limiting grooves.

5. A current probe for cable fault detection according to claim 1, characterized in that: The retractable mechanism (3) comprises a transmission box (31) fixed on the storage box (21); a transmission shaft (33) is rotatably mounted on the inner side of the upper end of the transmission box (31); a retractable knob (32) is fixedly mounted on the upper end of the transmission shaft (33); a retractable worm (34) is fixedly mounted on the lower end of the transmission shaft (33); a retractable worm wheel (35) is meshed with one side of the retractable worm wheel (34); and the retractable worm wheel (35) is fixedly mounted on one end of the storage column (22).

6. A current probe for cable fault detection according to claim 1, characterized in that: Sliding grooves (54) are provided at both ends of the rotating groove (56); a buffer spring (55) is fixedly mounted on one end of the sliding groove (54); a sliding seat (53) is fixedly mounted on one end of the buffer spring (55); the sliding seat (53) is slidably mounted in the sliding groove (54); and the rotating column (52) is fixedly mounted on the sliding seat (53).

7. A current probe for cable fault detection according to claim 1, characterized in that: The disassembly and assembly mechanism (6) comprises a mounting socket (61) fixed to one end of the probe body (1); the mounting socket (61) is inserted into a storage box (21); a knob screw (62) is provided on one side of the storage box (21); and the mounting socket (61) is fixed to the probe body (1) via the knob screw (62).

8. A current probe for cable fault detection according to claim 7, characterized in that: A junction box (65) is fixedly mounted on one side of the storage box (21), a probe wiring (66) is arranged on the inner side of the junction box (65), one end of the probe wiring (66) passes through the storage box (21) and is fixedly mounted with a connecting plug (64), a connecting socket (63) is arranged on the inner side of the mounting socket (61), the connecting plug (64) is plugged into the connecting socket (63), the other end of the probe wiring (66) is provided with an electric connection ring (67), the electric connection ring (67) is fixed in the junction box (65), one end of the storage column (22) is fixedly mounted with an electric brush (68), the electric brush (68) is located in the electric connection ring (67), and a connecting wire at one end of the movable detection seat (42) passes through the storage column (22) and is connected to the electric brush (68).

9. A current probe for cable fault detection according to claim 8, characterized in that: A positioning groove (642) is provided on one side of the mounting socket (61), and a positioning slide seat (641) is provided on one side of the connecting plug (64). The connecting plug (64) is slidably installed in the mounting socket (61) through the positioning slide seat (641) and the positioning groove (642), and the connecting wire of the fixed detection seat (41) is connected to one end of the probe wiring (66).

Images