CN205882204U - Reserve core of more adaptability cable extends and connects - Google Patents

Abstract

The utility model relates to a multi-adaptive cable spare core extension joint, which is characterized in that it includes a hollow cylindrical insulating shell, a power test line plug, a horizontal metal disc, an upper metal disc, a conductive metal rod, and a lower metal disc , a metal probe and an insulating sleeve; the power test line plug is embedded in the upper part of the inner wall of the hollow cylindrical insulating shell, and its lower end is fixedly connected with the upper surface of the horizontal metal disc, and passes through the horizontal metal disc They are respectively fixedly connected to the upper surfaces of multiple upper metal discs, and the center of the lower surface of each upper metal disc is sequentially connected with a conductive metal rod, a lower metal disc and an insulating sleeve; the bottom end of each insulating sleeve is provided with a There is a measured line interface, and a metal probe is made in it, and the upper end of the metal probe is fixedly connected with the lower surface of the corresponding lower metal disc. The utility model can lead out test joints for cables of different sizes, and can effectively improve the line checking efficiency.

Description

A multi-adaptive cable spare core extension joint

technical field

The utility model belongs to the technical field of relay protection, and relates to a cable organizer, in particular to a multi-adaptive cable spare core extension joint.

Background technique

During the construction process of the secondary cable in the substation, due to errors in the design drawings or construction personnel not following the correct construction drawings, errors in the secondary wiring will result. The transmission of the control loop also needs to carry out pressure and current work on the voltage and current loops to determine the correctness of the secondary loop. During this process, if it is found that the signal is not uploaded, the control fails, or the sample is not received, etc., it is necessary to check the secondary cable, that is, to check the line. Due to the quality of the cable and the quality of the construction, the designer dare not choose the required cable. The number of cores is the same as the actual number of cores, so as to prevent problems in the wiring after the cable laying is completed, and the cable needs to be replaced again. During the line checking process, it is often necessary to find the corresponding secondary line in the spare core of the secondary cable.

Because the spare core generally does not expose the copper core part, it brings great inconvenience to the wire inspection. The previous method is to use needle-nose pliers or wire stripper to peel off the plastic sheath of the spare core to expose the metal part of the spare core. Check the wire again, because there are many spare cores in the cable when checking the wire, and each spare core needs to be stripped off, so this method is inefficient. To work, it is necessary to cut off the exposed copper core of the cable temporarily reserved as a spare, resulting in a significant reduction in work efficiency.

Utility model content

The purpose of the utility model is to overcome the deficiencies of the prior art and provide a multi-adaptive cable spare core extension joint with reasonable design, simple structure, convenience and practicality.

The utility model solves its technical problem and realizes by taking the following technical solutions:

A multi-adaptive cable spare core extension joint, comprising a hollow cylindrical insulating shell, a power test line plug, a horizontal metal disc, an upper metal disc, a conductive metal rod, a lower metal disc, a metal probe and an insulating sleeve; The power test line plug is embedded in the upper part of the inner wall of the hollow cylindrical insulating shell, and its lower end is fixedly connected with the upper surface of the horizontal metal disc, and the horizontal metal disc is respectively connected to the upper metal discs. The upper surface is fixed, and the center of the lower surface of each upper metal disc is sequentially connected with a conductive metal rod, a lower metal disc and an insulating sleeve; the bottom end of each insulating sleeve is provided with an interface for the measured line, and there are A metal probe is made, and the upper end of the metal probe is fixedly connected with the lower surface of the corresponding lower metal disc.

Moreover, the insulating sleeve is made of plastic material, and the cross-sectional area of the interface of the tested line provided at the bottom end is different, and the cross-sectional area of the interface of the tested line is between 0.7 and 4.0 square millimeters.

Advantage and positive effect of the present utility model are:

1. The utility model leads the experimental metal terminal for the spare core of the cable without destroying the outer plastic skin of the spare core, which is convenient for debugging personnel to debug and use, improves the efficiency of line inspection, and reduces damage to the spare core at the same time.

2. The cross-sectional areas of multiple measured line interfaces of the utility model are different, and the test joints can be drawn out for cables of different sizes. When using, it only needs to be inserted into the corresponding measured line interface according to the different cross-sectional areas of the cable spare cores. It is convenient and can effectively improve the line checking efficiency.

Description of drawings

Fig. 1 is the structural representation of the utility model.

Explanation of reference signs:

1-power test line plug; 2-hollow cylindrical insulating shell; 3-horizontal metal disc; 4-first metal disc; 5-conductive metal rod; 6-second metal disc; 7-metal probe; 9-Insulation sleeve; 9-Interface of the measured line.

detailed description

Below in conjunction with accompanying drawing, the utility model embodiment is described in further detail:

A multi-adaptive cable spare core extension joint, as shown in Figure 1, includes a hollow cylindrical insulating shell, a power test line plug, a horizontal metal disc, an upper metal disc, a conductive metal rod, a lower metal disc, and a metal probe. Needles and insulating sleeves; the power test line plug is embedded in the upper part of the inner wall of the hollow cylindrical insulating shell, and its lower end is fixedly connected with the upper surface of the horizontal metal disc, and through the horizontal metal disc, it is connected with multiple The upper surface of each upper metal disc is fixedly connected, and the center of the lower surface of each upper metal disc is sequentially connected with a conductive metal rod, a lower metal disc and an insulating sleeve; the bottom of each insulating sleeve is equipped with a measured Each wire interface has a metal probe inside, and the upper end of the metal probe is fixedly connected with the lower surface of the corresponding lower metal disc.

In this embodiment, there are 5 insulating sleeves, all of which are made of plastic materials, and the cross-sectional areas of the interface of the measured line at the bottom end are different, which are 0.7 square millimeters, 1.0 square millimeters, 1.7 square millimeters, 2, 7 square millimeters, respectively. square millimeters and 4.0 square millimeters.

The working principle of the utility model is:

When in use, first insert the cable spare core into the interface of the tested line with different cross-sectional areas such as 0.7 square millimeters or 1.0 square millimeters corresponding to the utility model according to the cross-sectional area of the cable spare core; Check the plug of the above-mentioned electric power test line, etc.

It should be emphasized that the embodiments described in the utility model are illustrative rather than restrictive, so the utility model includes but not limited to the embodiments described in the specific implementation, and those skilled in the art according to the utility model Other implementations derived from the new technical solution also belong to the scope of protection of the utility model.

Claims (2)

1. A multi-adaptive cable spare core extension joint is characterized in that it includes a hollow cylindrical insulating shell, a power test line plug, a horizontal metal disc, an upper metal disc, a conductive metal rod, a lower metal disc, and a metal probe. Needles and insulating sleeves; the power test line plug is embedded in the upper part of the inner wall of the hollow cylindrical insulating shell, and its lower end is fixedly connected with the upper surface of the horizontal metal disc, and through the horizontal metal disc, it is connected with multiple The upper surface of each upper metal disc is fixedly connected, and the center of the lower surface of each upper metal disc is sequentially connected with a conductive metal rod, a lower metal disc and an insulating sleeve; the bottom of each insulating sleeve is equipped with a measured Each wire interface has a metal probe inside, and the upper end of the metal probe is fixedly connected with the lower surface of the corresponding lower metal disc. 2. A multi-adaptive cable spare core extension joint according to claim 1, characterized in that: the insulating sleeve is made of plastic material, and the cross-sectional area of the interface of the tested line provided at the bottom end is different. The cross-sectional area of the tested line interface is between 0.7 and 4.0 square millimeters.