SU1272383A1 - Unit for connecting multipole-conductor cables - Google Patents

Abstract

The invention relates to electrical engineering, in particular to a node of stranded wire connection. The purpose of the invention is to increase reliability. The assembly contains a tubular insulating body (K), consisting of two detachable parts 3 and 4, which can be rotated one relative to the other, the connecting element 7 and the drive (P) 1 and 2 located therein. The connecting element 7 is installed with a clearance relative to K and has two end sections 8 and 9 of conical shape, interconnected by a cylindrical bridge 10. The ends of the conductors P 1 and 2 are located on the cylindrical bridge 10 and are covered by an elastic tube 11. The helical coil spring 13 is rigidly attached with ends to parts 3 and 4 K, when parts 3 and 4 are rotated and the spring 13 is twisted, compressing P 1 and 2, cores P 1 and 2, evenly distributed along the end sections 8 and 9, and elastic tube I. As a result, a reliable connection of the wires as a whole with the tubular case. 3 il. (L

Description

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The invention relates to electrical engineering, mainly to cable technology, namely to a node for connecting stranded wires.

The purpose of the invention is to increase the reliability of the site.

Figure 1 shows the connection assembly of stranded wires in a secured state, general view, section; Figure 2 is the same, in a loose state; in FIG. 3, view A in FIG.

The node connecting the stranded wires 1 and 2 consists of a tubular insulating body, made of two parts 3 and 4, facing each other whose ends have respectively an end groove 5 (there may be several grooves) and a protrusion 6 interacting with it, the connecting element 7 sec. two reversed tip to the wires 1 and 2 end sections 8 and 9 of conical shape, interconnected by a cylindrical bridge 10, an elastic tube 11 with a longitudinal section 12, a helical cylindrical spring 13. The elastic tube 11 covers cylindrical The jumper 10 together with the cores of wires 1 and 2 uncovered on it, compresses the cores elastically, thereby fixing them on the connecting element 7. A helical coil spring 13 is installed in the cavity of the tubular insulating body, covering the inside diameter of the connecting element 7 together with an elastic tube 11 and wires 1 and 2. A helical coil spring 13 with its ends 14 and 15 is rigidly fixed, respectively, on opposite ends of parts 3 and 4 of the tubular insulating body.

The assembly of the joint assembly is as follows.

A tubular insulating body is attached to one of the wires, for example 1, together with a helical cylindrical spring 13 fixed therein, the inner diameter of which in the undeformed state is larger than the wire diameters of the elastic tube 11 and the connecting element 7. Then one loose end of the stranded wire 1 is taken and , evenly wrapping the end section 8, slides over the connecting element 7, where the ends of the wire wires are fed to the elastic tube 11, which with its elastic forces fixes the ends of the wires on the cylindrical foot The plug 10 of the connecting element 7. The same is done with the other wire 2, which is already mounted from the other end portion 9. Thus, both wires 1 and 2 are fixed to the connecting element 7 by their elastic ends 11 at their ends of the wires, where the wires) of wires 1 and 2 is monitored visually, which ensures reliable contact of the wires to the connector. Thereafter, the tubular insulating body

pulls into place of the junction of the wires symmetrically to the connecting element 7. Then, parts 3 and 4 of the tubular insulating body are slightly moved apart along the axis from one another, overcoming the elastic forces of the helical coil spring 13, to release the protrusion 6 from engagement with the end groove 5. Then rotate one part 3 relative to the other part 4, thereby twisting the helical coil spring 13.

At the same time, the inner diameter of the spring 13 begins to decrease. Rotate part 3 relative to part 4 until the spring 13 with its internal diameter forces the external surfaces of the elastic tube 11, the connecting element 7 together with the conductors of wires 1 and 2, as well as the isolated sections of wires (figure 2). After that, by a slight turning, the protrusion 6 is engaged in the end groove 5 (if there are several

0 then to the nearest one along the turn). The result is a reliable connection of the wires as a whole with the tubular body. Disassembly is carried out in the reverse order.

The invention makes it possible to increase the reliability of the connection of stranded wires, since the installation of the wires is carried out with visual control of the process, with good access to the point of contact of the cores of the wires with the connecting element. In addition, the wires with their insulating diameter are also securely fastened. At the same time, the helical coil spring itself is additionally a conductor of electrical current.

Claims (1)

Invention Formula The node connecting the stranded wires containing a tubular insulating body, in the cavity of which are located the connecting element, made in the form of two interconnected end sections conical shape, and wires, the fluffy veins of which are evenly distributed over the surface of the end sections, characterized in that, in order to increase reliability, it is equipped with a helical coil spring and an elastic tube 5 with a longitudinal slit, located in a tubular insulating body, the body consists of two detachable parts with the possibility of rotation one relative to another, the connecting element is installed with a gap relative to the body, the ends of the connecting element are connected by a cylindrical jumper, the ends of the wire leads are located on the last , the elastic tube covers the ends of the wires, and the coil spring coils the wires, the loose wires of the wires and the elastic tube, while its ends are rigidly fixed on the inside of each part of the case. 1b Figure 2 // 12 FIG.