CN215340270U - Cable core checking device - Google Patents

Abstract

The utility model relates to the technical field of ship engineering, and discloses a cable core checking device which comprises a light-emitting diode, a current-limiting resistor, a power supply, a switch, a wire and wire clamps, wherein a group of the wire clamps, the light-emitting diode and the current-limiting resistor are respectively connected in series through the wire to form paired branch cables, the wire clamps are used for clamping and connecting core wires of cables to be checked, and a plurality of paired branch cables are connected in parallel through a single end of the wire and are connected in series with the switch and the power supply and then connected with the wire for grounding. The cable core checking device has a key effect on improving the cable alignment efficiency by adopting a multi-core parallel circuit; the light emitting diode is used as a light emitting indicating component for selecting the components, so that the identification is clear and the working stability is high; the power supply can effectively avoid unnecessary discharge loss when the device is idle by controlling the switch of the power supply; the whole device is simple to manufacture, perfect in function, simple to operate, low in cost and high in practicability.

Description

Cable core checking device

Technical Field

The utility model relates to the technical field of ship engineering, in particular to a cable core checking device.

Background

Along with popularization and development of ship automation technology, a large number of equipment and the like in the shipbuilding industry need to be applied to a large number of aviation plug cables, so that the checking workload of cable cores of field debugging professionals is increased, the debugging progress of a ship mooring test is adversely affected, generally, the traditional line checking method is that one end of each core wire is opposite to the ground, the other end of each core wire is sequentially measured by a universal meter, and the method needs to be operated for many times, wastes time and energy and is low in efficiency.

SUMMERY OF THE UTILITY MODEL

The purpose of the utility model is: the cable core checking device is simple in operation and capable of efficiently improving the cable core checking efficiency of the aviation plug core.

In order to solve the technical problem, the utility model provides a cable core checking device.

The utility model provides a device is checked to cable core, includes emitting diode, current-limiting resistor, power, switch, wire and fastener, a set of the fastener emitting diode with current-limiting resistor establishes ties into the heart yearn of checking the cable through the wire respectively, the fastener is used for the clamp to connect the heart yearn of waiting to check the cable, the several to the heart yearn pass through the wire single-ended parallel connection with the switch with reconnection after the power is established ties is used for ground connection the wire.

According to the preferable scheme of the utility model, the diameter of the light-emitting diode is 5mm, the rated voltage of the light-emitting diode is 1.8-2.5V, the rated current is 10-20 mA, and the consumed power is 0.4W.

As a preferred embodiment of the present invention, a calculation formula of the current limiting resistor is (U-Ue)/Ie, where U is a rated voltage of the power supply, Ue is a rated voltage of the light emitting diode, and Ie is a rated current of the light emitting diode.

In a preferred embodiment of the present invention, the power source is one or at least two dry batteries No. 5 connected in series.

Compared with the prior art, the cable core checking device provided by the embodiment of the utility model has the beneficial effects that: the cable core checking device plays a key role in improving the cable alignment efficiency by adopting a multi-core parallel circuit; the light emitting diode is used as a light emitting indicating component for selecting the components, so that the identification is clear and the working stability is high; the power supply can be connected in series by dry batteries, has small volume and convenient use, and can effectively avoid unnecessary discharge loss when the device is idle by controlling the switch of the power supply; the whole device is simple to manufacture, perfect in function, simple to operate, low in cost, strong in practicability and easy to popularize.

Drawings

FIG. 1 is a schematic diagram of the structure and application of an embodiment of the present invention.

Detailed Description

The following detailed description of embodiments of the present invention is provided in connection with the accompanying drawings and examples. The following examples are intended to illustrate the utility model but are not intended to limit the scope of the utility model.

In the description of the present invention, it is to be understood that the terms "mounted," "connected," and "connected" are used broadly and are defined as, for example, either fixedly connected, detachably connected, or integrally connected, unless otherwise explicitly stated or limited; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In the description of the present invention, it is to be further understood that the terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the machine or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.

Referring to fig. 1, a cable core checking device according to an embodiment of the present invention includes light emitting diodes, current limiting resistors, a power supply, a switch, wires, and wire clamps, wherein a set of the wire clamps, the light emitting diodes, and the current limiting resistors are respectively connected in series by the wires to form paired branched cables, the wire clamps are configured to clamp core wires of cables to be checked, each paired branched cable clamps a core wire of a cable to be checked by the wire clamp, and a plurality of paired branched cables are connected in parallel at one end thereof by a single end of the wire and are connected in series with the switch and the power supply and then connected to the wires for grounding, the cable core checking device uses the principle of conducting light emission, uses the light emitting diodes as a display element, and matches the resistors, and uses the power supply to turn off a multi-core parallel circuit, and can monitor the core wires of a plurality of cables to be checked at the same time, and can efficiently improve the wire matching efficiency of the aviation plug core, the cable core checking device has the advantages of stable performance, small size, simplicity in operation, low cost and the like, and meanwhile, the switch is used for controlling the on-off of a core wire loop of a cable to be checked in a connecting mode, so that the power source discharge loss caused by random placement or idling when the cable core checking device is not used can be prevented.

Referring to fig. 1, for example, the diameter of the light emitting diode is 5mm, the rated voltage of the light emitting diode is 1.8-2.5V, the rated current is 10-20 mA, and the power consumption is 0.4W, so that a plurality of light emitting diodes can be installed simultaneously, the light emitting diodes with the diameter of 5mm are flexible and small, the size of the light emitting diodes with the diameter of 5mm is small, the working life of the light emitting diodes with the diameter of 5mm is 50000 hours, the number of times of turn-off is more than 100000 times, the performance is excellent, the light emitting diodes are light, wear-resistant, not easy to break, do not generate heat, work stably, and have high safety.

Referring to fig. 1, for example, a calculation formula R of the current limiting resistor is (U-Ue)/Ie, where U is a rated voltage of the power supply, Ue is a rated voltage of the light emitting diode, and Ie is a rated current of the light emitting diode.

Referring to fig. 1, the power supply is exemplarily one or at least two number 5 dry batteries connected in series, the dry batteries have the characteristic of small volume, and the dry batteries can meet the voltage requirement through several series connections, and can be replaced randomly on site when power is off, the dry batteries have the characteristics of small volume and flexible replacement, and most of the working cabins on the ship are fully distributed with electrical equipment, the dry batteries have low power, cannot cause potential safety hazards, and are low in cost.

The design ensures that the insulation between each cable is good, and the phenomena of cable skin breaking, short circuit and the like do not exist, the two ends of each cable core wire are in one-to-one correspondence, the conduction light-emitting principle is utilized, independent light indicating components, such as light-emitting diodes, are configured for all the cable core wires, when any one core of the cable and the ground form a passage, the light indicating components can be lightened, and if two or more light indicating components are lightened simultaneously, the condition that the cable core and the core are directly poorly insulated or have a short circuit is indicated; in order to improve the wire aligning efficiency, a plurality of single-end parallel-connection channels are adopted, and an optical indicating component is additionally arranged on each channel and used for monitoring a plurality of core wires of the cable simultaneously, on the basis, a small switch is additionally arranged in front of a dry battery and used for controlling the on-off of a loop, the discharge loss of the dry battery caused by random placement when the device is not used can be prevented, all electronic components are connected according to a schematic diagram shown in figure 1, and the device is simple to manufacture.

The operation steps of the cable core checking device are as follows:

opening the switch of the cable core checking device to connect a circuit;

secondly, the common end of the cable core checking device is reliably grounded through a lead;

connecting and clamping all core wires of the cable to be checked by the pair of branch cables through the wire clamps;

fourthly, grounding the core wire of any cable to be checked, observing the cable core wire checking device, if only one light-emitting diode is lighted, determining that the core wires of the pair of wire branch cables correspondingly clamped and the grounded cable to be checked are the same cable core, if the core wire of one cable to be checked is grounded, and simultaneously lighting a plurality of light-emitting diodes, indicating that the insulation between the core wires of the cables to be checked on the wire clamp with a lighted lamp is poor, and the cable can not be normally used;

and fifthly, checking the core wires of all the cables by analogy with the core wires of other checked cables in sequence.

The cable core checking device plays a key role in improving the cable alignment efficiency by adopting a multi-core parallel circuit; the light emitting diode is used as a light emitting indicating component for selecting the components, so that the identification is clear and the working stability is high; the power supply can be connected in series by 2 sections of 1.5V Nanfu batteries, the size is small, the use is convenient, and a small power supply control switch is arranged, so that unnecessary discharge loss caused when the wire aligning device is idle can be effectively avoided; the whole alignment device is simple to manufacture, perfect in function, simple to operate, low in cost, strong in practicability and easy to popularize.

The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and substitutions can be made without departing from the technical principle of the present invention, and these modifications and substitutions should also be regarded as the protection scope of the present invention.

Claims (4)

1. A cable core checking device is characterized in that: the wire clamp, the light emitting diode and the current limiting resistor are connected in series through the wire to form paired branch cables, the wire clamp is used for clamping and connecting core wires of cables to be checked, and the paired branch cables are connected in parallel through single ends of the wire and are connected with the switch and the power supply in series and then connected with the wire used for grounding.

2. The cable core verification device of claim 1, wherein: the diameter of the light-emitting diode is 5mm, the rated voltage of the light-emitting diode is 1.8-2.5V, the rated current of the light-emitting diode is 10-20 mA, and the power consumption is 0.4W.

3. The cable core verification device of claim 1, wherein: and a calculation formula R of the current-limiting resistor is (U-Ue)/Ie, wherein U is the rated voltage of the power supply, Ue is the rated voltage of the light-emitting diode, and Ie is the rated current of the light-emitting diode.

4. The cable core verification device of claim 1, wherein: the power supply is one or at least two No. 5 dry batteries connected in series.

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