Aircraft cable fault positioning device

Abstract

The utility model discloses an aircraft cable fault positioning device which comprises an ampere meter, a detection mechanism used for detecting an aircraft cable is arranged at the upper end of the ampere meter, the detection mechanism comprises a fixed tube, a fixed frame, a movable block, a movable tube, a detection clamp and a transmission rod, and the fixed tube is arranged at the upper end of the ampere meter. A fixed frame is fixedly arranged at the upper end of the fixed pipe, a movable block is movably clamped at the lower end in the fixed frame, a movable pipe is movably inserted into the fixed pipe, detection pliers are movably arranged on the two sides of the upper end in the fixed frame through rotating shafts, and a transmission rod is movably arranged on the surface of the outer side of the movable block through a rotating shaft. According to the utility model, the detection mechanism can be inserted into a slit of an airplane, so that the detection mechanism can be conveniently sleeved on the outer side surface of a detected cable, whether the connection of the cable is short-circuited or open-circuited can be known, and the damaged cable can be conveniently and rapidly positioned to facilitate subsequent maintenance work.

Description

Technical Field

[0001] The utility model relates to the technical field of fault location, in particular to an aircraft cable fault location device. Background Art

[0002] Aircraft cable fault location is an important part of aircraft maintenance. Aircraft cables are complex in type, including various radio frequency cables, data cables, low-voltage power cables, etc., and the cables are short and spread across various parts of the aircraft like "blood vessels". They are often placed in bundles in the aircraft's walls according to their categories, making it inconvenient to manually determine the fault point.

[0003] In the prior art, a clamp-on ammeter is often used to cover the surface of aircraft cables to detect the quality of the cables; a clamp-on ammeter, also known as a clamp-on ammeter or current clamp, is an instrument used to measure the current value in a circuit. The characteristic of this ammeter is that it has two openable clamp-on probes, which are used to clamp the electrical conductors around the electrical equipment without contacting the conductive parts of the equipment, that is, there is no need to disconnect the equipment wires for probe insertion. The principle is that the clamp-on ammeter is equivalent to a current transformer. The measured wire passing through the jaws is equivalent to the primary side of the transformer. When there is current on the primary side, the secondary side will induce voltage and generate current.

[0004] However, with respect to the above-mentioned clamp-on ammeter structure, since such clamp-on ammeters in the prior art are relatively large in size, it is very inconvenient to insert them into the wall of an aircraft. Therefore, an improved aircraft cable fault locating device is needed to address this problem. Utility Model Content

[0005] The utility model aims to provide an aircraft cable fault locating device to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an aircraft cable fault locating device, comprising an ammeter, a detection mechanism for detecting aircraft cables is arranged on the upper end of the ammeter, the detection mechanism comprises a fixed tube, a fixed frame, a movable block, a movable tube, a detection clamp, and a transmission rod, a fixed tube is arranged on the upper end of the ammeter, a fixed frame is fixedly arranged on the upper end of the fixed tube, a movable block is movably engaged with the lower end of the fixed frame, a movable tube is movably inserted inside the fixed tube, detection clamps are movably arranged on both sides of the upper end of the fixed frame through a rotating shaft, and a transmission rod is movably arranged on the outer surface of the movable block through a rotating shaft.

[0007] Preferably, a wire is fixedly provided at the lower end of the detection clamp, and the wire passes through the hollow movable tube and extends to the lower end of the movable tube. A connection interface is provided on the outer surface of the ammeter, and the detection clamp is electrically connected to the ammeter through the wire and the connection interface; the two detection clamps are connected to the ammeter through the wire, and when the two detection clamps are close together; the circuit, wire and detection clamp inside the ammeter can form a coil, and when the cable set by the detection clamp is energized, if current passes through the cable, the corresponding current is also induced inside the above-mentioned detection coil, at this time, it can be judged that the cable is not broken, and vice versa, if the cable is broken, a larger current will be generated, and at this time the ammeter will also sense a larger current, so that it can be judged that the cable is short-circuited, so that the faulty cable can be found quickly and conveniently.

[0008] Preferably, contact points are fixedly provided on the outer surface of the detection clamp, and through the contact points, when the two detection clamps are close to each other, an electrical connection can be completed between the two detection clamps; so that the wire plus the two detection clamps can form a detection coil sleeved on the outer surface of the cable under test.

[0009] Preferably, a limiting ring is fixedly provided on the outer surface of the movable tube, and a spring is sleeved between the limiting ring and the fixed tube on the outer surface of the movable tube, so that the movable tube can be automatically pushed downward to reset by the spring.

[0010] Preferably, the end of the transmission rod close to the detection clamp is movably connected to the detection clamp through a rotating shaft. When the movable block moves upward, the transmission rod can push the detection clamp to rotate around the rotating shaft, so that the two detection clamps can be close to each other and closed, thereby forming a detection loop in conjunction with the wire.

[0011] Preferably, the upper end of the movable tube is fixedly connected to the movable block, and the movable block can be driven to move up and down inside the fixed frame by the movable tube moving up and down; thereby, the detection clamp can be pushed to rotate around the rotating shaft through the transmission rod; so that the two detection clamps rotate and close to contact each other.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] 1. The utility model can conveniently insert the detection clamp into the narrow gap of the aircraft, and then put the detection clamp on the outer surface of the cable to be tested. Then the staff can hold the fixed tube with one hand to keep the fixed tube still, and then push the movable tube upward to move the movable block upward. When the movable block moves upward, the transmission rod can push the detection clamp to rotate around the rotating shaft, so that the two detection clamps can be close to each other and closed, so that they can form a detection loop with the wire, so that the cable detection can be convenient.

[0014] 2. The utility model is easy to operate as a whole. You only need to hold the fixed tube with one hand to keep it still, and then push the movable tube upward to move the movable block upward to control the closing of the detection clamp. After releasing the movable tube, the detection clamp can be automatically opened under the action of the spring. This is easy to operate and is easy to promote and use. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the overall structure of an aircraft cable fault locating device of the utility model;

[0016] Figure 2 This is an overall structural view of a detection mechanism in an aircraft cable fault locating device of the utility model;

[0017] Figure 3 This utility model is an aircraft cable fault location device Figure 2 Magnified view at A in the middle.

[0018] In the figure: 1. ammeter; 2. fixed tube; 3. fixed frame; 4. movable block; 5. movable tube; 6. detection clamp; 7. transmission rod; 8. wire; 9. connection interface; 10. contact contact; 11. limit ring; 12. spring. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] See also Figure 1-3 The utility model provides a technical solution: an aircraft cable fault locating device, comprising an ammeter 1, a detection mechanism for detecting aircraft cables is arranged on the upper end of the ammeter 1, the detection mechanism comprises a fixed tube 2, a fixed frame 3, a movable block 4, a movable tube 5, a detection clamp 6, and a transmission rod 7, a fixed tube 2 is arranged on the upper end of the ammeter 1, a fixed frame 3 is fixedly arranged on the upper end of the fixed tube 2, a movable block 4 is movably engaged with the lower end of the fixed frame 3, a movable tube 5 is movably inserted inside the fixed tube 2, detection clamps 6 are movably arranged on both sides of the upper end of the fixed frame 3 through a rotating shaft, and a transmission rod 7 is movably arranged on the outer surface of the movable block 4 through a rotating shaft.

[0021] A wire 8 is fixedly provided at the lower end of the detection clamp 6, and the wire 8 passes through the hollow movable tube 5 and extends to the lower end of the movable tube 5. A connection interface 9 is provided on the outer surface of the ammeter 1, and the detection clamp 6 is electrically connected to the ammeter 1 through the wire 8 and the connection interface 9; the two detection clamps 6 are connected to the ammeter 1 through the wire 8, and when the two detection clamps 6 are close together; the circuit inside the ammeter 1, the wire 8, and the detection clamp 6 can form a coil, and when the cable set by the detection clamp 6 is energized, if there is current passing through the cable, the corresponding current is also induced inside the above-mentioned detection coil, at this time, it can be judged that the cable is not broken, and vice versa, and if the cable is broken, a large current will be generated, and at this time the ammeter 1 will also sense a large current, so that it can be judged that the cable is short-circuited, so that the faulty cable can be found quickly and conveniently;

[0022] The outer surface of the detection clamp 6 is fixedly provided with a contact point 10, and when the two detection clamps 6 are close to each other, the two detection clamps 6 can be electrically connected through the contact point 10; so that the wire 8 plus the two detection clamps 6 can form a detection coil sleeved on the outer surface of the cable under test;

[0023] A limit ring 11 is fixedly arranged on the outer surface of the movable tube 5, and a spring 12 is sleeved between the limit ring 11 and the fixed tube 2 on the outer surface of the movable tube 5, so that the movable tube 5 can be automatically pushed downward and reset by the spring 12;

[0024] The end of the transmission rod 7 close to the detection clamp 6 is movably connected to the detection clamp 6 through the rotating shaft. When the movable block 4 moves upward, the transmission rod 7 can push the detection clamp 6 to rotate around the rotating shaft, so that the two detection clamps 6 can be close to each other and closed, so as to form a detection loop with the wire 8;

[0025] The upper end of the movable tube 5 is fixedly connected to the movable block 4. The movable tube 5 can move up and down to drive the movable block 4 to move up and down inside the fixed frame 3; thereby, the transmission rod 7 can be used to push the detection clamp 6 to rotate around the rotating shaft; so that the two detection clamps 6 rotate and close to contact each other.

[0026] Working principle: When using this device, the detection clamp 6 can be easily inserted into the narrow gap of the aircraft, and then the detection clamp 6 is set on the outer surface of the cable to be tested. Then the staff can hold the fixed tube 2 with one hand to keep the fixed tube 2 motionless, and then push the movable tube 5 upward so that the movable block 4 can move up. When the movable block 4 moves up, the transmission rod 7 can push the detection clamp 6 to rotate around the rotating shaft, so that the two detection clamps 6 can be close to each other and closed, so as to form a detection loop with the wire 8; at this time, when the cable set by the detection clamp 6 is energized, if there is current passing through the inside of the cable, the corresponding current is also induced inside the above-mentioned detection coil. At this time, it can be judged that the cable is not broken, and vice versa. If the cable is broken, a large current will be generated. At this time, the ammeter 1 will also sense a large current, so it can be judged that the cable is short-circuited, so that the faulty cable can be found quickly and conveniently.

[0027] 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.

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

Claims

1. An aircraft cable fault location device, comprising an ammeter (1), characterized in that: The upper end of the ammeter (1) is provided with a detection mechanism for detecting aircraft cables, and the detection mechanism comprises a fixed tube (2), a fixed frame (3), a movable block (4), a movable tube (5), a detection clamp (6), and a transmission rod (7). The upper end of the ammeter (1) is provided with a fixed tube (2), the upper end of the fixed tube (2) is fixedly provided with a fixed frame (3), the lower end of the fixed frame (3) is movably engaged with a movable block (4), the fixed tube (2) is movably interlaced with a movable tube (5), the upper ends of the fixed frame (3) are movably provided with detection clamps (6) on both sides of the upper end thereof via a rotating shaft, and the outer surface of the movable block (4) is movably provided with a transmission rod (7) via a rotating shaft.

2. The aircraft cable fault location device according to claim 1, characterized in that: A wire (8) is fixedly arranged at the lower end of the detection clamp (6), and the wire (8) passes through the hollow movable tube (5) and extends to the lower end of the movable tube (5). A connection interface (9) is arranged on the outer surface of the ammeter (1), and the detection clamp (6) is electrically connected to the ammeter (1) via the wire (8) and the connection interface (9).

3. The aircraft cable fault location device according to claim 1, characterized in that: A contact point (10) is fixedly arranged on the outer surface of the detection clamp (6).

4. The aircraft cable fault location device according to claim 1, characterized in that: A limiting ring (11) is fixedly arranged on the outer surface of the movable tube (5), and a spring (12) is sleeved on the outer surface of the movable tube (5) between the limiting ring (11) and the fixed tube (2).

5. The aircraft cable fault location device according to claim 1, characterized in that: One end of the transmission rod (7) close to the detection clamp (6) is movably connected to the detection clamp (6) via a rotating shaft.

6. The aircraft cable fault location device according to claim 1, characterized in that: The upper end of the movable tube (5) is fixedly connected to the movable block (4).

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