SU691975A1 - Sealed cable inlet - Google Patents

Description

(54) HERMETIC CABLE INPUT

I

This invention relates to electrical engineering, in particular, to devices providing hermetic passage of conductors through the hull of underwater vehicles. Cable entry can be used as a connection node for external and internal devices of submersible vehicles.

A device is known comprising a housing, a yoke having a portion, a side. the walls of which are adjacent to the body, and the central rod 1.

However, the known device is not sufficiently reliable due to the lack of longitudinal tightness along the center conductor and the leakage inside the robust case arising from damage to the external cable path.

Closest to the proposed device according to the technical essence and the obtained result is a device comprising a housing, in the opening of which it is hermetically sealed through sealing. the elements are mounted with the contact elements and the knife 2. This device is designed to connect and ensure the tightness of the passage

single coaxial cable. If it is necessary to use the device case for connecting several cables, there are considerable structural and technological difficulties.

Claims (2)

The aim of the invention is to simplify the design of the input and the povyshenie its reliability when connecting cable bundle. This is achieved by the fact that the input is provided with additional sealing elements and clips, the body is made with a central hole, the knife attachment is installed in the last cup, in the wall of which radial holes are made with cutting edges, while the glass is installed in the hole with the formation of a cavity Between its bottom and the wall, the openings and on its outer surface are additional sealing elements, the sleeves are located around the circumference, and the dampness communicates with the openings in which Clamps are mounted. FIG. 1 shows cable entry in the working position, a longitudinal section in FIG. 2 - input in emergency position. The input housing 1 has holes 2 in which the clips 3 are installed. The clips are equipped with insulators 4 and central conductors 5. A cup 7 and a support sleeve 8 are installed in the center hole 6 of the housing. On the glass there are additional sealing elements 9 and 10 and holes 11 are made with a cutting edge 12. The glass is installed in the hole 6 with the formation of the cavity A between the bottom of the glass and the wall of the hole. The cavity A communicates with the opening 2 through the opening 13. In the housing 1 there is a radial slot 14 through which the cable 15 passes, the bowl 7 is axially supported by a shear stop 16. To limit the axial movement of the bowl 7 and the support sleeve 8, radial pins 17 are installed in the housing In a robust housing, the lead is sealed with a sealing element 18 and secured with a nut 19. Conductors 15 to eliminate condensate pass through the gland 20. The lead works as follows. When the outer cable duct is damaged, water enters hole 2 and through holes 13 into cavity A. Upon reaching a pressure sufficient to cut off the stopper 16, the bowl 7 moves, cut off the conductors 15, and reaches the stop in the pins 17. The sealing element 10 passes through slot 14 and seals the passage in a robust housing. Sealing element 9 eliminates leakage at the moment when sealing. element 10 passes in the zone of slot 14. A further increase in pressure, and then destruction of the insulators, cannot influence the quality of the sealing of the passage to the sturdy casing. The proposal allows reducing the number of passes through the robust underwater hull, reducing the number of welded necks for mounting the bushings, reducing the weight of the structures and increasing the overall reliability of the object. Claims An hermetic cable gland comprising a housing, in a hole of which a cage with contact elements is installed tightly through sealing elements, and a knife device, characterized in that, in order to increase its reliability when inserting a cable bundle, it is provided with additional sealing elements and additional clips, the body is made with a central hole, the knife attachment is in the form of a glass installed in the last, in the wall of which radial holes are made with a cutting and edges, wherein the cup is installed B holes with the formation of a cavity between the bottom of the cup and the wall of the hole and sealing elements are located on its surface, the clips are located around the circumference, and the cavity communicates with the holes in which the clips are installed. Sources of information taken into account during the examination 1. USSR author's certificate No. 228733, cl. H 01 H 17/26, 1958. 2. USSR author's certificate number 559287, cl. H 01 H 17/26, 1975.