CN113848422B - Cable conduction testing device - Google Patents
Cable conduction testing device Download PDFInfo
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- CN113848422B CN113848422B CN202111105935.2A CN202111105935A CN113848422B CN 113848422 B CN113848422 B CN 113848422B CN 202111105935 A CN202111105935 A CN 202111105935A CN 113848422 B CN113848422 B CN 113848422B
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- base
- plug
- plug pin
- testing device
- central axis
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/08—Locating faults in cables, transmission lines, or networks
- G01R31/081—Locating faults in cables, transmission lines, or networks according to type of conductors
- G01R31/083—Locating faults in cables, transmission lines, or networks according to type of conductors in cables, e.g. underground
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/50—Testing of electric apparatus, lines, cables or components for short-circuits, continuity, leakage current or incorrect line connections
- G01R31/58—Testing of lines, cables or conductors
Abstract
A cable continuity testing device, comprising: the base is used for being detachably connected to a connector at one end of a tested cable, and a conductive guide rail is arranged in the base; the bolt positioning pieces are arranged in the base and can move relative to the base respectively; the bolt comprises a joint end which can move relative to the bolt positioning piece to joint or disconnect the contact piece in the connector, and when the joint end is jointed with the contact piece, the contact piece is electrically connected with the guide rail through the bolt. The cable continuity testing device according to the present invention facilitates the simultaneous connection of a plurality of cables or the switching of connections between different cables in a convenient manner.
Description
Technical Field
The invention relates to the field of cable conduction testing, in particular to a cable conduction testing device for an aircraft, especially an aviation cable of a civil aircraft, which is used for manual conduction testing of the cable.
Background
The aviation cable is an element which is related to each system of the airplane such as electricity, operation and the like and can provide power supply, control signals and/or data information for each part of the airplane, is equivalent to a neural network of the airplane and has very important function. Typically, the aircraft cable is connected to the corresponding equipment by connectors at the ends of the cable, which are typically standard components as required.
Therefore, the manufacturing quality and physical properties of the aircraft cable have a significant impact on the overall quality of the aircraft. Once a problem with the cable occurs, the flight safety of the aircraft may be directly compromised. Therefore, the detection of the aircraft cable is necessary, and the cable detection is highly regarded by various aviation manufacturing enterprises as a key link for ensuring the quality of the aviation cable.
After the aircraft cable is manufactured, the correctness, the on-off state and the cable insulation performance of the cable connection are comprehensively detected, and the normal work of each system of the aircraft after the connection is finished is ensured by judging whether the connection is correct or not, whether the disconnection (open circuit), the series connection (misconnection), the short circuit and the insulation damage occur or not.
In the full-machine cable detection stage, in order to improve the production efficiency, automatic detection equipment is adopted to carry out cable detection under the normal condition.
In the system function test and production test flight stage, when the system breaks down and needs to check a specific circuit, the manual test of the cable by using the universal meter is more flexible and rapid.
The universal meter is used for conducting test on the circuit, the red and black meter pens of the universal meter are directly connected to the beginning and the end of the circuit to be tested, the buzzer is triggered when the circuit is conducted, and meanwhile, the resistance value of the circuit can be displayed by using the universal meter display.
Because the aviation electrical system is required to be highly reliable, highly integrated, highly portable and limited by the space of the airplane body, the wiring of the electrical system is generally concentrated in narrow spaces such as the wall and the floor of the airplane body, most of the wires are bent and shuttled among metal frameworks, and the wires are almost spread on the wall, the floor and the top of the airplane body. Because the distribution positions of the equipment are different, two ends of the cable are usually arranged at different positions of the airplane, so that the red and black test pens of the multimeter cannot be directly connected to the beginning and the end of the circuit to be tested during testing. In order to solve the problem, when the on-board conduction test is actually performed, one end of a wire needs to be connected with a machine body (ground), a red and black pen of the multimeter needs to be connected with the other end of the wire and the machine body (ground) respectively, the conduction performance of the wire is indirectly measured through the machine body, and the test principle is shown in fig. 1.
When the general assembly site or the production test flight uses the universal meter to conduct and eliminate faults on the cable, because the two end connectors of the cable are distributed at different positions, and the two end connectors are very far away in many times, at least two workers are needed to complete the test work in a cooperative mode. During measurement, one worker is responsible for connecting one end binding post of the wire to be measured with organism (ground), and another worker is responsible for connecting the red pen and the black pen-shape metre of universal meter respectively with the other end binding post and the organism (ground) of the wire to be measured, is responsible for observing the universal meter reading and takes notes measuring result simultaneously. In the measuring process, two parties need to use communication equipment for real-time communication, and after one wire is tested, the two parties can change the wire to the next wire at the same time.
The above described manual measurement procedure has at least three problems:
1) At least two workers are needed to complete the operation, so that the labor cost is increased;
2) When the tested lead is replaced, the other worker needs to connect the corresponding tested lead with the ground besides the worker operating the universal meter, so that the working efficiency is low;
3) Two people operate and use communication equipment to communicate, so that the condition of unsmooth communication or inconsistent operation is easy to occur, and the measurement result is easy to be wrong.
For this reason, it is desirable to have a tool to enable one end of the wire under test to be connected to the ground without the presence of a worker, so that the above-mentioned manual troubleshooting can be performed by one worker himself.
A connector test socket and a connector test device are disclosed in chinese utility model CN 204129082U. The device is used for connector conduction testing, but the probe of the device is fixed and cannot move to contact only one or only part of the contacts in the connector, and the device is only suitable for testing under the condition that all the contacts of the connector can be contacted simultaneously. This is clearly not applicable to the above-mentioned field manual troubleshooting, especially in the case of a faulty wire connection correspondence.
A connector test socket and connector test device are also disclosed in US patent 6,081,124. The device is used for testing the rectangular connector. When the device is used, the device is connected with the connector through the screw, the operation is time-consuming, and the use is inconvenient. The efficiency requirement of manual troubleshooting on an airplane general assembly site or a production test flight site is difficult to meet.
Disclosure of Invention
In view of the above-mentioned problems in the prior art, it is an object of the present invention to provide a cable continuity testing device that facilitates simultaneous connection of a plurality of cables or switching of connection between different cables in a convenient manner. By the device itself it can be ensured that certain contacts of the connector are grounded while none of the other contacts are grounded.
Therefore, the invention provides a cable conduction testing device, which comprises:
a base for detachably coupling to a connector at one end of a cable under test, the base having an electrically conductive rail disposed therein;
a plurality of latch positioning members installed in the base and movable relative to the base, respectively;
a plug inserted in the plug positioning member, the plug including an engagement end that is movable relative to the plug positioning member to engage or disengage a contact in the connector,
the contact is electrically connected with the rail via the pin when the engagement end of the pin engages the contact.
According to a preferred but non-limiting embodiment of the cable continuity testing device according to the invention, the base defines a central axis oriented perpendicularly to a plane in which the contacts of the connector are distributed;
each bolt positioning piece is distributed along the central axis and can rotate around the central axis relative to the base so as to drive the bolt inserted into the bolt positioning piece to rotate relative to the base.
According to a preferred but non-limiting embodiment of the cable continuity testing device according to the invention, each pin is inserted in said pin locator at a different distance from said central axis.
According to a preferred but non-limiting embodiment of the cable continuity testing device according to the invention, the guide comprises a plurality of circular arc-shaped guides distributed in a same guide plane around the central axis, each circular arc-shaped guide having a radius corresponding to the distance of the respective plug pin from the central axis.
According to a preferred but non-limiting embodiment of the cable continuity testing device according to the invention, the bolt further comprises an extension end extending from the engagement end through the bolt positioning element in which it is inserted and extending from the guide rail parallel to the central axis, the extension end being arranged such that sliding the extension end of the bolt in the respective guide rail causes the bolt positioning element to rotate about the central axis.
According to a preferred but non-limiting embodiment of the cable continuity testing device according to the present invention, a plug pin guide portion for inserting a plug pin is provided in the plug pin positioning member, and the plug pin guide portion protrudes from the plug pin positioning member in a direction along the central axis out of the guide rail plane.
According to a preferred but non-limiting embodiment of the cable continuity testing device according to the invention, the bolt and the bolt guide are arranged so that the bolt is able to prevent the bolt from undesirably engaging the contact at least against the weight of the bolt itself.
According to a preferred but non-limiting embodiment of the cable conduction testing device of the present invention, the base is a hollow cylinder, and a viewing window is opened on the cylinder wall of the base, so as to observe and/or finely adjust the position of the joint end of each plug pin from the outside of the base.
According to a preferred but non-limiting embodiment of the cable continuity testing unit according to the invention, the engagement end of the pin has a self-adapting structure to be securely inserted into contacts having different apertures.
According to a preferred but non-limiting embodiment of the cable continuity testing device according to the invention, a rubber layer is provided at the surface of the base engaging the connector to provide an interference connection of the base with the connector.
In summary, the advantages of the invention are at least: the utility model provides a cable conduction testing arrangement, use the device can be according to many wires of actual conditions simultaneous test, at first ground connection simultaneously with many measured wires during the measurement, use the universal meter to accomplish the conduction test at the measured wire other end after the ground connection work is accomplished, whole test process is accomplished by an operation workman, the period need not to be surveyed wire earthing terminal repetitive operation.
Compared with the prior conduction testing technology, the cable conduction testing device can be simultaneously connected with a plurality of wires, is convenient to use, saves labor cost, improves conduction testing efficiency and ensures conduction testing accuracy.
Drawings
This document includes the accompanying drawings to provide a further understanding of various embodiments. The accompanying drawings are incorporated in and constitute a part of this specification. The drawings illustrate various embodiments described herein, and together with the description serve to explain the principles and operations of the claimed subject matter.
Technical features of the present invention are hereinafter clearly described with reference to the above objects, and advantages thereof are apparent from the following detailed description with reference to the accompanying drawings, which illustrate by way of example preferred embodiments of the present invention, without limiting the scope of the invention.
In the drawings:
FIG. 1 is an exploded perspective view of an exemplary preferred embodiment of a cable continuity testing arrangement in accordance with the present invention;
FIG. 2 is a schematic perspective view of the base of the exemplary preferred embodiment of the cable continuity testing device shown in FIG. 1 in accordance with the present invention;
FIG. 3 is a schematic front view of the base rail of the exemplary preferred embodiment of the cable continuity testing arrangement according to the present invention shown in FIG. 1;
FIG. 4 is an assembled perspective view of the exemplary preferred embodiment of the cable continuity testing unit shown in FIG. 1 in accordance with the present invention;
FIG. 5 is a cross-sectional view of one of the latches and corresponding latch positioning member of the exemplary preferred embodiment of the cable continuity testing device according to the present invention shown in FIG. 1, as assembled, taken along a cross-sectional plane passing through the latch guide and the central axis;
FIG. 6 is a schematic front view of a latching location of the exemplary preferred embodiment of the cable continuity testing arrangement shown in FIG. 5 in accordance with the present invention;
fig. 7 is a schematic view of a use state of the exemplary preferred embodiment of the cable continuity testing device according to the present invention shown in fig. 1.
List of reference numerals
10. Cable conduction testing device
100. Base seat
110. Guide rail
120. Observation window
130. Rubber layer
140. Guide rail pin shaft hole
200. Bolt positioning piece
210. Bolt guide part
220. Pin hole of bolt positioning piece
300. Bolt
310. Joint end
320. Extension end
400. Central pin shaft
20. Connector with a locking member
Central axis of X
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings and described below.
While the invention will be described in conjunction with the exemplary embodiments, it will be understood that this description is not intended to limit the invention to those embodiments illustrated. On the contrary, the invention is intended to cover not only these exemplary embodiments, but also various alternatives, modifications, equivalents and other embodiments, which may be included within the spirit and scope of the invention.
For convenience in explanation and accurate definition of the technical solutions of the present invention, the terms "upper", "lower", "inner" and "outer" are used to describe features of the exemplary embodiments with reference to the positions of these features as shown in the drawings.
Referring to the drawings, there is shown a cable continuity testing device 10 in accordance with a preferred embodiment of the present invention. The cable continuity testing device 10 includes: a base 100, a plurality of latch positioning members 200, and a latch 300.
The base 100 is used for a connector detachably coupled to one end of a cable to be tested. Also, an observation window 120 may be formed on the cylindrical wall of the base 100. As can be seen in the drawings, in a preferred embodiment, the viewing window 120 may be defined at the middle end of the barrel wall and may be divided into three small windows spaced approximately 120 apart from each other.
A conductive rail 110 is provided in the base 100. As used herein, electrically conductive generally means that the components that make up the associated structure are made of a material that is capable of conducting electricity so that electricity can be conducted by engagement with the components. In the preferred embodiment shown in the drawings, the base 100 may be in the form of a hollow cylinder. The base 100 defines a central axis X oriented perpendicular to the plane in which the contacts of the connector under test are distributed.
Preferably, as shown in the figures, the guide rail 110 may comprise a plurality of circular arc-shaped guide rails distributed in the same guide rail plane around the central axis X. In the cylindrical base 100 shown in the figures, this guide rail plane may be arranged near one end of the cylindrical base 100, in particular four circular arc-shaped guide rails each distributed in the guide rail plane in the radial direction with respect to the central axis X and opening out in the form of through slots on a thin plate-like piece perpendicular to the central axis X. In other words, the four circular arc-shaped openings with different radii are arranged on the thin plate-like member like concentric circles, so that after the base 100 is rotated through a certain angle around the central axis X, each circular arc-shaped opening is still located at the same radial position for the insertion of the plug pin 300 located at the corresponding radial position. Furthermore, as also shown in the figures, in order to obtain a plurality of guide rails in the form of through slots in a one-piece plate-like piece by means of etching or laser cutting or the like, these guide rails may be non-closed circular rings, as shown in the figures. In addition to the above-described circular arc-shaped guide rail, as clearly shown in fig. 3, at a position near the center of the base 100, a circular hole type guide rail is provided so that the insert pin 300 is inserted therein. Thus, the base 100 is shown to receive five pins 300 therein. However, the number of the guide rails and the pins is not limited thereto, but may be selected according to actual needs, and the number of the guide rails and the pins is not necessarily identical.
In a preferred embodiment, referring to fig. 1 and 4, a rubber layer 130 may be provided at the surface of the base 100 that engages the connector to provide an interference connection of the base 100 to the connector 20 under test. Although the rubber layer 130 is shown in the drawings as being located on the inner circumferential surface of the base 100, the rubber layer 130 may be located on the outer circumferential surface of the base 100. More preferably, a plurality of protrusions, such as elongated protrusions as shown in the drawings, may be provided on the rubber layer 130 at intervals, such as at circumferential intervals. The rubber layer 130 may be attached to the inner wall of the base 100 by liquid glue, for example, and this connection may fix the base 100 and the connector 20 together and protect the connector 20 from being damaged.
Continuing to refer to the drawings, the latching positioners 200 of the cable continuity testing apparatus according to the present invention are installed in the base 100 and can move relative to the base 100, respectively. As shown in the drawings, the latch positioning member 200 is preferably installed in the base through the center pin 400. The center pin 400 connects the plug pin positioners 200 to the base 100 through the base pin hole 140 provided at the center of the base 100 and the plug pin positioner pin holes 220 provided at the center of the respective plug pin positioners 200. The respective plug-pin positioners 200 are distributed axially of the central axis X, preferably on one side of the above-mentioned guide plane, and are able to rotate with respect to the base 100 about the central axis X, respectively.
Referring to fig. 5 and 6, a plug pin guide portion 210 for inserting the plug pin 300 may be provided in the plug pin positioning member 200. The plug pin guide portion 210 extends from the plug pin positioning member 200 in the direction of the central axis X from one side of the guide rail plane where the plug pin positioning member 200 is located to the other side of the guide rail plane. Specifically, as shown in the drawings, the plug pin guide portion 210 is a hollow tubular member extending from the plug pin positioning member 200 in the direction of the central axis X. The insert pin guide portion 210 of the insert pin positioning member 200 shown in fig. 5 and 6 is located at the guide rail 110 of the second turn of the base 100 in the radial direction from the outside to the inside, and a through groove structure similar to the guide rail 110 is provided at other positions of the insert pin positioning member 200. It will be appreciated that the latch pin guides 210 in other latch pin positioners 200 may be located at different radial positions. Thus, five pins 300 may also be received in the pin keeper 200 shown in fig. 5 and 6. Also in this case, the plug-pin guide 210 may be electrically conductive to conduct the potential of the plug pin 300 from its tubular interior to its tubular exterior and further through the guide rails at the plug-pin guide 210 to contact the respective guide rails. In this way, by grounding any point on the guide rail, it is ensured that the plug pin guides 210 of all plug pin locators 200 overlap with ground, so that the corresponding plug pins 300 and therefore the corresponding contact to be tested are connected to ground. Furthermore, this also makes it possible to compactly arrange each plug pin guide 200 in the direction of the central axis X.
Continuing to refer to the drawings, the plug pin 300 of the cable continuity testing device according to the present invention is inserted into the plug pin positioning member 200. Preferably, the plug 300 is pressable in relation to the base 100 at different axial positions in the direction of the central axis X, i.e. in the direction of the central axis X. Each of the pins 300 is inserted into the pin keeper 200 at different distances from the central axis X according to the guide rail. The pin 300 is, for example, in the form of an elongated needle.
As best shown in fig. 5, the latch 300 includes at least an engagement end 310, the engagement end 310 being movable relative to the latch positioning member 200 to engage or disengage a contact in a connector. In a preferred embodiment according to the present invention, since each of the insert pins 300 is inserted into the insert pin positioning member 200 at different distances from the central axis X to protrude through the guide rail 110 of the base 100 together with the insert pin guide portion 210, when the engagement end 310 of the insert pin 300 engages the contact, the contact is also electrically connected with the guide rail 110 via the insert pin 300. Preferably, the engagement end 310 of the plug 300 has a self-adaptive structure to be securely inserted into contacts having different apertures. Such as, but not limited to, a resilient ring as shown, a resilient bend not shown, or the like, which allows the engagement end 310 to stably engage a generally hole-shaped contact. Wherein the radius or distance from the central axis X of each guide rail 110 corresponds to the distance from the central axis X of the respective pin 300. Also with the above-described latch guide portion 210, rotation of each latch positioning member 200 about the central axis X relative to the base 100 can cause the latch 300 inserted therein to rotate relative to the base 100, and vice versa. It is further noted that the latch 300 may also rotate the latch positioning member 200 relative to the base 100, including but not limited to friction fit, etc
The plug pin 300 may also preferably include an extended end 320 extending from the engagement end 310 through the plug pin positioning member 200 in which it is inserted and extending from the guide rail 110 parallel to the central axis X. The protruding end 320 may be arranged such that sliding the protruding end 320 of the bolt 300 in the corresponding guide rail 110 causes the bolt positioning member 200 to rotate about the central axis X.
The latch 300 and the latch guide 210 are arranged such that the latch 300 at least prevents the latch 300 from undesirably engaging a contact against the weight of the latch 300 itself, such as by friction or the like.
Preferably, the viewing window 120 of the base 100 may be configured to view and/or fine tune the position of the engagement end 310 of each latch 300 from outside the base 100 to see if the latch 300 has rotated to the mating position of the contact being tested as the latch positioning member 200 is rotated.
According to a preferred embodiment, when the cable continuity testing device 10 according to the present invention is used, the cable continuity testing device 10 is first connected to an end connector 20 of a cable to be tested, as shown in fig. 7. The base 100 is fixedly connected to the connector 20 by means of its rubber layer 130. Pushing the plug pin guiding part 210 to rotate the plug pin positioning part 200, rotating the adaptive plug pin 300 to the contact position of the tested connector 20, and then inserting the corresponding plug pin 300 into the jack of the contact of the tested connector 20. All conductors under test of the connector 20 are connected to the body (i.e., grounded) by connecting the base 100 to the body through a ground patch cord (i.e., grounded). After the operation is completed by an operator, the operator can move to the other end of the tested cable to use the universal meter to carry out the conducting wire conduction test.
While the preferred embodiments of the present invention have been described in detail above, it should be understood that aspects of the embodiments can be modified, if necessary, to employ aspects, features and concepts of the various patents, applications and publications to provide yet further embodiments.
These and other changes can be made to the embodiments in light of the above detailed description. In general, in the claims, the terms used should not be construed to be limited to the specific embodiments disclosed in the specification and the claims, but should be construed to include all possible embodiments along with the full scope of equivalents to which such claims are entitled.
Claims (10)
1. A cable continuity testing device (10), comprising:
a base (100), the base (100) being for detachably coupling to a connector (20) at one end of a cable under test, the base (100) having an electrically conductive rail (110) disposed therein;
a plurality of latch positioners (200), the latch positioners (200) being installed in the base (100) and being movable relative to the base (100), respectively;
a plug (300), the plug (300) being inserted in the plug positioning member (200), the plug (300) comprising an engagement end (310), the engagement end (310) being movable relative to the plug positioning member (200) to engage or disengage a contact in the connector (20),
when the engagement end (310) of the plug (300) engages the contact, the contact is electrically connected with the rail (110) via the plug (300).
2. The cable continuity testing device (10) of claim 1,
the base (100) defining a central axis (X) oriented perpendicular to a plane in which the contacts of the connector (20) are distributed;
each plug pin positioning piece (200) is distributed along the central axis (X) and can rotate around the central axis (X) relative to the base (100) to drive the plug pin (300) inserted into the plug pin positioning piece to rotate relative to the base (100).
3. The cable continuity testing device (10) of claim 2,
each plug pin (300) is inserted in the plug pin positioning piece (200) at different distances from the central axis (X).
4. The cable continuity testing device (10) of claim 3,
the guide rail (110) comprises a plurality of circular arc-shaped guide rails distributed in the same guide rail plane around the central axis (X),
the radius of each circular arc-shaped guide rail corresponds to the distance of the respective bolt (300) from the central axis (X).
5. The cable continuity testing device (10) of claim 4,
the bolt (300) further comprises an extension end (320) extending from the engagement end (310) through the bolt positioning element (200) in which it is inserted and extending from the guide rail (110) parallel to the central axis (X), the extension end (320) being arranged such that sliding the extension end (320) of the bolt (300) in the respective guide rail (110) causes the bolt positioning element (200) to rotate about the central axis (X).
6. The cable continuity testing device (10) of claim 2,
the plug pin positioning piece (200) is internally provided with a plug pin guiding part (210) for inserting a plug pin (300), and the plug pin guiding part (210) extends out of the guide rail plane along the direction of the central axis (X) from the plug pin positioning piece (200).
7. The cable continuity testing device (10) of claim 6,
the plug pin (300) and the plug pin guide (210) are arranged such that the plug pin (300) prevents the plug pin (300) from undesirably engaging the contact member at least against the weight of the plug pin (300) itself.
8. The cable continuity testing device (10) of claim 1,
the base (100) is a hollow cylinder, and an observation window (120) is arranged on the cylinder wall of the base (100) so as to observe and/or finely adjust the position of the joint end (310) of each bolt (300) from the outside of the base (100).
9. The cable continuity testing device (10) of claim 1,
the engagement end (310) of the plug (300) has a self-adaptive structure to securely insert into contacts having different apertures.
10. The cable continuity testing device (10) of claim 1,
a rubber layer (130) is provided at the surface of the base (100) that engages the connector (20) to provide an interference connection of the base (100) with the connector (20).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111105935.2A CN113848422B (en) | 2021-09-22 | 2021-09-22 | Cable conduction testing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111105935.2A CN113848422B (en) | 2021-09-22 | 2021-09-22 | Cable conduction testing device |
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| Publication Number | Publication Date |
|---|---|
| CN113848422A CN113848422A (en) | 2021-12-28 |
| CN113848422B true CN113848422B (en) | 2023-04-18 |
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| CN202111105935.2A Active CN113848422B (en) | 2021-09-22 | 2021-09-22 | Cable conduction testing device |
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| CN113848422A (en) | 2021-12-28 |
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