(57) Abstract:The invention relates to electrical engineering. The inventive cable coupler includes a housing in the form of a split in the longitudinal direction of the pipe, with means for locking the joint, and including a groove of U-shaped profile, in which is placed a longitudinal seal is pressed by the protrusion. The ends of the pipe are closed by seals cable through holes and spaced around the circumference of the grooves in which o-ring seals. To prevent extrusion of the tube during closing of the coupling, the pipe in the area of both ends has a thickening of the wall, passing to the area of longitudinal separation, 5 C.p. f-crystals, 6 ill. The invention relates to a cable coupling for connecting and branching cables, particularly telecommunication cables.From  known cable coupling for connecting and branching cables, particularly telecommunication cables, comprising a housing in the form of a split in the longitudinal direction of the pipe, with means for locking the joint, including the groove of the U-shaped profile and a protrusion included in the cavity of the groove to compress the longitudinal seal, placed in the groove, closing the ends of the pipe seals with cable pass-through holes, the AMI, in which is placed an annular seal clamped between sealing and covering them with a pipe, and a groove of U-shaped profile formed: oriented in the direction of the circumference of the pipe, an outer lip and an inner ledge outside the area of intersection of the longitudinal and o-ring seals to ensure they are pressed to each other.In such cable boxes, which, as a rule, placed in the earth, understandable way should be reliable sealing of the housing of the coupling relative to the seals. To do this, on the one hand provided by o-ring seals, and on the other hand includes one or more locking tensioning devices that cover locking profiles, and tighten the seal not only the longitudinal seam, but also put pressure on the seals to hold the circumferential seals in their grooves. As pipe couplings made of plastic cuff relatively small thickness, e.g. 4 mm, when tightening the seals are not excluded tension and stretching of the pipe. Such expansion or extension may, however, lead to deterioration of the seal pipe couplings relative to the seals.The basis of the invention the task is to create the a, in order to achieve a reliable seal pipe couplings relative to the seal prevents stretching and expansion of the pipe coupling during closing of the clutch.The problem is solved in that the cable coupling for connecting and branching cables, particularly telecommunication cables, comprising a housing in the form of a split in the longitudinal direction of the pipe, with means for locking the joint, including the groove of the U-shaped profile and a protrusion included in the cavity of the groove to compress the longitudinal seal, placed in the groove, closing the ends of the pipe seals with cable pass-through holes made with the possibility of reconciliation with cables of different diameters and arranged around the circumference of the grooves in which o-ring seals, trapped between the seals and covering them with a pipe, moreover, the groove of the U-shaped profile formed oriented in the direction of the circumference of the pipe, an outer lip and an inner ledge outside the area of intersection of the longitudinal and o-ring seals to ensure they are pressed to each other, according to the invention the pipe in the area of both of the ends has a thickening of the wall, passing to the area of the longitudinal connector, while prodelin is the thickening prevents stretching and, finally, the expansion of the pipe in the region of its ends during the closing of the clutch by means of locking. According to a preferred form of execution of the invention the thickening of the walls of the pipe are thickening material is preferably given width and thickness as the outside and inside of the pipe. The width of the thickening may correspond to the width of the seal, whereas the thickness of the thickening may be approximately half the thickness of the rest of the pipe, in any case is selected so that the extension and expansion of the tube occurs. Thickening of the pipe or wall material from technological considerations easiest to do, as an external thickening from the same plastic material as the pipe.A longitudinal groove in places where there is no inner lip has a narrowing of the cavity. These measures according to the invention result in the fact that when closing pipe couplings and, hence, the introduction of the opposite profile to the profile of the groove, a longitudinal seal in the areas of narrowing of the camera are compressed in enhanced degree. Due to the strong compression of the longitudinal seal, it is in places where there is no protrusion from the groove and simultaneously pressed against the ring seal given lavage seals optimized, even taking into account the fact that the longitudinal and annular seals are just round cords without increasing forms in the zone of the intersection, which could be in these places. In order for the compression of the longitudinal seals in the area of narrowing the camera could reliably take considerable effort, the invention further proposes that the narrowing of the cavity of the groove was formed rising towards the internal cavity of the tube bottom of the groove.In a cable sleeve according to the invention, lifting the bottom of the groove can be formed in a wedge-shaped or arcuate thickening extending to the inner surface of the pipe with the formation of an acute angle. As well as in a cable sleeve according to the invention, the outer ledge of the longitudinal groove of the U-shaped profile in the area of intersection of the longitudinal and annular seals can be executed power, for example, by means of the same material.In the result according to the technical solution of the invention is made cable coupling for connecting and branching cables, particularly telecommunication cables, which in a simple way, even when using a simple sealing cords of circular cross section for longitudinal and circumferential seals, due to optimalnoe compression of the sealing material with high specific pressure without stretching or expansion of the pipe coupling in the course of its closing.The invention is illustrated by the following drawings in which are shown:
Fig. 1 Cable coupler according to the invention in schematic axial section.Fig. 2 the Subject according to Fig. 1 in schematic cross section.Fig. 3 a Section of a pipe coupling in the area of longitudinal separation.Fig. 4 the Subject according to Fig. 3 in side view.Fig. 5 a Section along the line 1 1 of the subject according to Fig. 4, and
Fig. 6 a top view of the object according to Fig. 4.Sketches cable coupler 1 for connecting and branching cables 2, in particular communication cables, in principle, consists of a casing in the form of a split in the longitudinal direction of the pipe 3 made of plastic and limiting the longitudinal joint locking means 4, as well as serving for end-closing pipe couplings 3 surround it seals with 5 matched with the different cable diameter cable through holes 6 and injected between the sleeve 3 and the seal 5 in the annular grooves 7 ring 8. Closing pipe coupling 3 is made by covering the locking means 4 locking clamps 9, so that the tube 3 is pulled together not only in the field of longitudinal joint, but also on the seals 5, and therefore, on the o-rings 8 and the expansion of the pipe 3, consisting of a plastic pipe coupling 3 in the area of both ends has a thickening of the wall 10 extending to the longitudinal joint. These thickenings 10 are thickenings of the pipe material width B and thickness S and overlapping the annular seal 8 from both sides. For example, the execution of the width B of the thickening of the wall 10 is approximately 50 mm, and the thickness S of approximately 2 mm, so that the pipe coupling 3, having a wall thickness of 4 mm, in the area of thickening 10 has an overall thickness of 6 mm of course, the dimensions may be different. Thickening of the wall 10 is made as an outer bulb, and therefore the construction can be easily realized.To close the longitudinal seam is provided by the connection 11, 12 from the groove of the U-shaped profile and the protrusion 11 for installation of the longitudinal seal 13 on one edge of the joint and extending into the groove of the protrusion 12 on the other side of the longitudinal seam for longitudinal compression of the seal 13. The closing force and clamp attached with locking clamps 9.U-shaped profile groove 11 is formed extending in the annular direction of the pipe coupling 3 internal ledge 14 and the outer ledge 15. At the intersection of the longitudinal seals 13 and o-ring 8 internal vimutti 3 longitudinal seal 13 is pressed against the ring seal 8. A longitudinal groove 16 in areas without internal ledge And has a narrowing of the chamber 17, in order to create a particularly intensive longitudinal compression of the seal 13 and fit it to the o-rings 8 with high specific pressure on the surface. The narrowing of the chamber 17 formed by lifting the bottom of the groove 18 of the profile 11 vs. free from internal ledge area. The rise of the bottom of the groove 18 in the example of execution is made in the form of arcuate venutolo thickening 19, which is an acute angle alpha on the inner surface of the pipe coupling 3. So you defect-free to take occurring with increased compression of the longitudinal seal 13 load, the outer protrusion 15 of the profile of the groove 11 in the area without internal protrusion has a thickness of 20, so this ledge is thickened. 1. Cable coupling for connecting and branching cables, particularly telecommunication cables, comprising a housing in the form of a split in the longitudinal direction of the pipe, with means for locking the joint, including the groove of the U-shaped profile and a protrusion included in the cavity of the groove to compress the longitudinal seal, placed in the groove, closing the ends of the pipe seals with cable pass-through holes made with the possibility of reconciliation with CB, trapped between the seals and covering them with a pipe, and a groove of U-shaped profile formed oriented in the direction of the circumference of the tube outer lip and an inner ledge outside the area of intersection of the longitudinal and annular seals to ensure they are pressed to each other, characterized in that the tube in the area of both ends has a thickening of the wall, passing to the area of the longitudinal connector, with a longitudinal groove U-shaped profile has a narrowing of the cavity in the region of intersection of the longitudinal and annular seals.2. Clutch under item 1, characterized in that the thickening of the walls are made in the form of thickening of the material of a given width and thickness S, overlying the o-ring seals on both sides.3. Clutch under item 1 or 2, characterized in that the thickening of the walls are made in the form of external additives from the same plastic material as the pipe coupling.4. Clutch under item 1, characterized in that the narrowing of the cavity of the groove formed rising towards the internal cavity of the tube bottom of the groove.5. The clutch on p. 4, characterized in that the lifting of the bottom of the groove formed wedge-shaped or arcuate thickening extending to the internal surface of the pipes is for the U-shaped profile in the region of intersection of longitudinal and circumferential seals made power, for example, by thickening of the same material.
FIELD: electric engineering.
SUBSTANCE: invention relates to electric engineering, particularly, to sectional protection box for cabling, which is composed of two covers (1, 3). The inner walls of covers form a cavity (7, 9) accommodating cabling. The covers (1, 3) are joined to form closed cavity. The inner walls (15, 17) of one cover limits sealing area partly surrounding the cavity (7, 9). So, the sealing material (27) can be placed in this area. At least, one inner wall of one cover may be pulled into the sealing area by means of the other cover so that the sealing material, if available in sealing area, is compressed when covers are joined.
EFFECT: different levels of protection from damping may be ensured for cabling in cavity by changing sealing areas to be provided with sealing material (27).
9 cl, 10 dwg
SUBSTANCE: sealing element or support sleeve with multi-layered construction for protective cable tubes with cables routed in them includes, as the upper layer of connection, for example perforated film; at that, a sealant located under it can pass through perforation, thus providing a seal between protective cable tube and support sleeve and at the same time the movement of sealing element or support sleeve for example for introducing new cables, etc.
EFFECT: invention allows performing easy replacement or new routing of cables and prevents indentation of thin-walled tubes of covers inside the tube cable channel.
7 cl, 4 dwg
SUBSTANCE: distributing cable box (100) comprises an organiser (200), installed inside a body for distribution of separate cables of a distribution cable. A cover (160) closes an organiser inside the body and comprises one or more latches (161, 162, 161a, 162a), arranged as capable of engagement with lock ledges (135). A bar (150, 150a), installed on the body as capable of sliding, comprises one or more diverting cams (153a, 153b) formed on it. A bar (150, 150a) is arranged as capable of shift into the first position, in which diverting cams unbending one and more latches (161, 162, 161a, 162a), disengaging them from one or more lock ledges (135). Besides, the bar (150, 150a) is made as capable of shift into the second position, in which hooks (155a, 155b) arranged on it are engaged with stop ledges arranged on latches (161, 162, 161a, 162a).
EFFECT: simplified mechanism of box opening and closing.
15 cl, 12 dwg
FIELD: machine building.
SUBSTANCE: invention proposes a coupling to protect cable junction. The coupling comprises a sheet sealing element (110) attached to the inner shell (120). The sealing element is fixed around the cable junction due to the shift of the outer rigid shell (140) which makes the latter be placed over the inner shell and be engaged with it. The inner shell has the topography of the outer surface determining the inner shell profile, and the outer shell has the topography of the inner surface determining the outer shell profile, and the outer shell profiles is identical with the inner shell profile.
EFFECT: invention provides for a coupling with small dimensions and easy to be installed in confined space.
10 cl, 18 dwg
SUBSTANCE: invention relates to telecommunication boxes, in particular, including splice plates for fibre-optic cables. Telecommunication device (100) includes box (103), having base (101) and cover (102), which are interconnected by leak-tight joint line. Box cover (102) can be fixed on box base (101). In box (103) inner part (104) splice plates unit (106) is arranged. Splice plates unit (106) includes splice plates (150) installed on base. Splitter (192) can be located on base. Splice plates unit base may also include plate (160) with slots, which is fixed on base (180). One or more input/output (107-109) nodes enable input and/or output of cables from box (103) via leak-tight ports (145-147). Input/output (107-109) nodes may contain cable reinforcing elements fixation facilities (214, 234) and/or guide devices (243, 244, 253, 254) for tubes with fibre.
EFFECT: invention provides creation of open to access device, and its high sealing.
23 cl, 63 dwg
FIELD: repairs of communication line cables laid in soils of all kinds in cable conduits, manifolds, and tunnels.
SUBSTANCE: proposed method includes installation of split lead bushing on aluminum sheath of each cable followed by shifting both bushings along cables away from spliced joint of cable conductors, running exposed sections of aluminum sheath over with tin, fitting bushings back in place, and soldering them to tinned sections of aluminum sheath; at the same time longitudinal seam on bushings is soldered, ends of bushings are sealed by thermosetting tape, junction box is installed above spliced joint, and its butt-ends are soldered to bushings. In order to repair outer shielding hose, junction box and adjacent cable sections are covered with sealing compound and moist-cured bandage.
EFFECT: improved repair quality, enhanced service life of junction box due to elimination of electrochemical corrosion.
3 cl, 1 dwg
FIELD: flexible coatings and method for cable splice sealing.
SUBSTANCE: flexible coating for sealing cable splice without external heating has gel layer and supporting layer; its flexibility is sufficient to enable manually making gathers around cable-to-splice transition sections of smaller size in case there is gel at this transition for packing resulting seal. Supporting layer preferably made of low-density polyethylene ensures mechanical strength and facilitates coating procedure. Evaporation preventing layer preferably made of aluminum may be applied to supporting layer. Protective layer may be applied to evaporation preventing layer. Adhesion reducing material may be used at least on one end of gel layer facing supporting layer to provide for regulating coating placed on cable splicing sections. Flexible or rubber band may be wound on applied coating for gel compression.
EFFECT: provision for reusing seal obtained; enhanced sealing length.
38 cl, 19 dwg
FIELD: devices for formation of electrical connections in vehicles; the repair kit is designated for repair of a failed electrical device of a vehicle connected to the vehicle electrical equipment system by several wires.
SUBSTANCE: the repair kit has a new electrical device installed instead of the failed one, several wires connected to the new electrical device and a built-up protective box designated for protection of the electrical connection made by joining of the wires of the new electrical device and the wires of the vehicle electrical equipment system. The built-up protective box has a body with several holes insulated from one another. The packing rings positioned in each hole of the body intended for arrangement of the new electrical device section of the connected respective wire of the vehicle electrical equipment system and the respective new electrical device form in fact a waterproof packing around the section of the wires connected to one another by joining. The protective built-up box has also a cover joined to the body. The claimed repair kit is preferably designated for replacement of the sensor of the content of oxygen in exhausted gases failed on the vehicle.
EFFECT: simplified aftersale servicing of the vehicle.
9 cl, 8 dwg
FIELD: electrical engineering.
SUBSTANCE: proposed water-and-gas-tight stuffing box designed for terminating ends of communication cable line, including plastic-sheathed telephone cables with polyethylene insulated conductors, in capacity of 100 to 600 pairs directly in switchgear cabinet on vertically mounted cables which can be or not held at gage pressure and with water-repelling material filled core has shield connector secured on aluminized polyethylene cable sheath in contact with conical surface of through hole at input end of body; plastic cable sheath is filled within stuffing box with cold-cured polyurethane sealing compound; each conductor is covered with plastic insulating layer throughout its entire length.
EFFECT: simplified design, enhanced reliability of cable box.
1 cl, 7 dwg
FIELD: electrical connector and method for connecting coaxial cable lead to terminal.
SUBSTANCE: proposed connector has nut incorporating receiving port for connection to terminal. Nut also has circular clip. Connector also has base member one of whose ends is provided with projection to be inserted through clip hole. Other end of base member incorporates part of inner surface. Connector also has support with flange and body. Support is free to move for compressing external cable conductor and shell with support body and part of inner surface to obtain distal compression. Tightening nut with terminal compresses projection between support flange and circular clip to obtain proximal tightness.
EFFECT: enhanced tightness, reduced manufacturing and maintenance charges.
10 cl, 11 dwg
FIELD: cable connectors for power transfer between power supply and borehole instrument modules of downhole telemetering system in the course of boring.
SUBSTANCE: proposed electrical connector has one or more contact pairs insulated from one another and electrical conductors connected to internal and external opposing contacts of contact pairs. External contacts of contact pairs are made in the form of semi-rings which are installed opposite one another within flexible insert and are free to move toward one another under impact of external pressure. Proposed method for manufacturing this electrical connector includes connection of electrical conductors to contacts, of which external ones are made in the form of semi-rings, integral with auxiliary bushing and wrapped with band made of polymerizing or curing material, such as raw rubber, on top of auxiliary bushing. Wrapping procedure includes filling of cavities followed by placing conductors along blank axis and final wrapping until diameter of blank becomes greater than outer diameter of electrical connector. Blank is fitted between top and bottom cases of mold, compressed at the same time heating it, whereupon auxiliary bushing is completely removed by boring inner diameter of blank until semi-rings are fully separated.
EFFECT: enhanced power capacity, reliability, and service life of power supply.
5 cl, 6 dwg
FIELD: subsurface laying of screened communication cables designed for local communication networks to operate at high frequencies and as "last-mile" cables.
SUBSTANCE: proposed terminator for copper-conductor communication cables designed for use in structured cable systems of categories 5 and 5e (up to 100 MHz and higher) has sleeve-shaped plastic body with round bottom on one end and cylindrical opening on opposite end, spliced conductors of cable ends being spliced which are potted in sealing compound within cable terminator; spliced insulated copper conductors are sealed with aid of type UY-2 connectors accommodating water-repelling filler; spliced conductors are disposed inside reticular screen made in the form of reticular copper sleeve reliably electrically connected to screens of cable ends being spliced in structured cable networks by winding sub-screen tinned copper wires of cable on sleeve and potting core splice of cable screened with reticular copper sleeve in terminator by cold-hardened polyurethane sealing compound VILAD-13.
EFFECT: enlarged functional capabilities of terminator.
1 cl, 6 dwg
SUBSTANCE: concave body is suggested with open outer edge and several parts of perimetre adjacent with open body edge. Elastomeric film is attached to concave body perimetre parts along open concave body edge. Elastomeric film is suited for coupling one or more cables when the cables are located within the body to isolate them from environmental conditions.
EFFECT: invention improves device impermeability and provides possibility of reuse when cable or joint is restored.
10 cl, 5 dwg
SUBSTANCE: product consists of protective core that has, at least, two end sections, many retaining cores and, at least, one cold shrink material that is kept in stretched condition above, at least, part of protective core and, at least, part of each retaining core. One end of each of retaining cores is mated with the corresponding end section of protective core. Retaining cores, protective core and cold shrink material as a whole annularly surround the equipment component so that cold shrink material when shrinking is set on part of equipment component after extracting the end of one of many retaining cores from the corresponding end section of protective core.
EFFECT: sealing or other kind of protection of equipment components such as cables or places of their connection.
15 cl, 31 dwg
SUBSTANCE: sealing device is intended for design of cables intended for underground usage. The pressure-limiting device for cables may contain, for example, the first cable including a conductor and an oil-containing layer encapsulating the conductor and the second cable having a conductor. At the connection spot the first cable conductor may be connected to that of the second cable. The connection spot and the conductors of the first and the second cables may be covered with a pressure-limiting hose. Installed at multiple spots o the pressure-limiting hose may be multiple ties for crimping the pressure-limiting hose round the connection spots and the first and he second cables sections. The pressure-limiting device may be implemented in the form of a hose on a single-strand cable or in the form of a breakout with individual hoses on a multi-strand cable such as a three-strand cable.
EFFECT: oil-containing cables sealing improvement.
20 cl, 12 dwg