Connector with external decoupling on the earth chain covers for cable splices

 

(57) Abstract:

The invention relates to a sealed shields cable splices and has a body made therein shaped hole. Grounding stud shaped for passage through the opening in the housing so as to limit its rotation inside the housing. The grounding pin has a first end inserted into the corresponding cable casing for connection to the internal ground conductor, and located outside of the cable casing second end for connecting with an external ground wire. The body is made input for external ground wire. The first end of the ground stud is sealed relative to the housing and casing, and the second end of the ground stud is sealed relative to the housing. The technical result - the possibility to easily disconnect and re-attach the ground wire to preserve the integrity of the wire with preserving the integrity of the seal. 5 C. and 20 C.p. f-crystals, 5 Il.

The present invention relates mainly to a sealed shields cable splices, and more particularly, to a connector with external decoupling on earth circuit used with these enclosures.

News wires, prisoners in metallic reinforcing and shielding sheath and outer sheath. These bundles of wires must be grounded, which requires connection to a grounded screen beam within the enclosure and external ground connection.

This requires that the internal and external ground wire is passed through a sealed, i.e., air - and watertight glands casing in such a way as to prevent contamination from the environment. To solve this problem using different devices, providing a sealed connection of the ground wire to the casing. One such device is the tip of the grounding conductor passing through the wall of the casing. Internal grounding wire connected with a part of the tip inside the enclosure and the external ground wire connected to a part of the tip that is located outside the casing. Then on the outer part of the tip of the grounding conductor apply a variety of sealants, compounds, heat shrinkable layers, etc. for sealing connection to the tip and the outer surface of the casing. These applied in a cold state sealants are often unreliable, especially in the case of who is the residual for the violation of the seal.

Unfortunately, the problems associated with sealing of ground covers for cable splices to maintain the integrity of the seal, the prior art has not received sufficient attention. In this regard, there is a need to develop a device and method of sealing connection of the grounding wire housings cable housings. In addition, it is necessary to re-enter and rapid sealing of such grounding, which can easily be separated and reattached to preserve the integrity of the seal.

In the present invention proposes a device and a method of providing a sealed ground covers for cable splices, which can be detached and again attached with preserving the integrity of the seal. With this purpose, the outer connector junction on earth circuit includes a body and a grounding stud passing through the housing. The grounding pin has a first end for entry into the appropriate cable casing and a second end for outputting to the outside of the cable casing. Means are provided for connection of the grounding wire with the first and second ends of the grounding studs, and means the acquisition, that connector with external decoupling on earth circuit provides a sealed connection of internal and external grounding wires passing through the wall of the cable casing, and allows you to disconnect and re-connect external ground wire in a way that provides rapid re-input and circuit to maintain the integrity of the seal. This differs from known devices that require violations sealed connection to the external grounding wire.

In Fig. 1 presents an isometric projection illustrating one example implementation of the part of the cable casing containing two connector junction on earth circuit mounted in the cable glands.

In Fig. 2 presents an isometric projection illustrating one example implementation of the part of the cable casing containing the connector junction on earth circuit in the perspective image with a spatial separation of the parts mounted in the cable input.

In Fig. 3 shows in section the lateral projection illustrating one example implementation of a connector to junction on earth circuit mounted outside on the implementation of the connector to junction on earth circuit.

In Fig. 4a presents a section along line 4a-4a shown in Fig. 3.

In Fig. 5 shows in section the lateral projection, illustrating an alternative embodiment of the connector to junction on earth circuit, mounted on the outside of the wall of the cable casing.

In Fig. 1 is shown and indicated by item 10 is one end of a pair of identical halves of the casing cable splices. The casing 10 has a wall 12 made in one piece with end flanges 14, only one of which is shown, and part of a pair of spaced side flanges 16a and 16b. Wall 12, shown with the inner side of the casing 10, is closed by a plug mounting surface 18 for installation of the grounding studs. In addition, on the outer side wall 12 is also formed mounting surface 18. When removing plugs 20 opens the hole 21 to install the grounding stud.

In the end flange 14 and side flanges 16a, 16b made bolt holes 22 for mounting bolts for fastening the paired halves of the casing 10. In addition, along the front flange 14 and side flanges 16a, 16b passes a continuous peripheral groove 24 to accommodate a suitable mastic or cushioning material with the aim of obtaining cover the input and output cables in the casing 10. The inputs 26 also typically sealed above mastic or cushioning material to create the respective end seals cables into the inputs 26. In addition, the inputs 26 normally have installed a plug (not shown), which can be removed when you want to put the cables.

For use with casing 10 is designed connector 28 to junction on earth circuit (Fig. 1-4). In one example implementation, the connector 28 may be mounted in one of the pre-made cable glands 26, if it is available, or on the outer surface of wall 12. The connector 28 has a main body 30 (Fig. 2) with the first section 32 and second section 34. The first section 32 has an outer surface 32a in the form of a coil, designed for laying in cable gland 26. The second section 34 has an input 34a to an external ground wire, made in one piece with this site. In addition, the main body 30 has a through-shaped hole 36 (Fig. 4a). The hole 36 is profiled by performing cross-sectional hexagonal shape, but the use of other cross-section shapes. A threaded hole 38 (Fig. 3), performed in the input 34a, Pigot wire, there is a groove 40 o-ring 41 is placed in it.

Grounding pin 44 (Fig. 2 and 3) has a first end 46 and second end 48. The second end 48 (Fig. 3) has a section 49 with an external thread and the hole 50 with internal thread, which passes to the intersection with the transverse bore 52 to an external ground wire. The first end 46 has a threaded extension 54 extends from the section 56 of the Central axis, having a hexagonal cross section (Fig. 2) for mating of coupling with a hexagonal bore 36. Thus, the grounding stud 44 is in non-rotating engagement with the hexagonal bore 36. Near the space 60 located between the Central axis 56 and a threaded extension 54 has a groove 58 to the o-ring 62 is placed in it.

The screw 64 with the head (Fig. 3) is screwed into the threaded hole 50 until it stops and securely clamps the exposed end 66 of the outer ground conductor 68. The ground wire 68 is fixed in commercially available, is not permeable to liquids, the sleeve 70, which has a threaded end 72, is placed in the threaded hole 38 of the input 34a. The sleeve 70 has a flexible sealing the end part 71, which holds the ground wire 68. the local rotation leads many elastic fingers 75 and elastic sleeve 79 in sealing contact with the ground conductor 68. In the cover 74 of the case is made blind hole 76 with internal thread that cooperates with a threaded section 49 of the grounding studs 44 and creates a sealing contact between the sealing ring 41 with the groove 40.

Internal grounding conductor 80 (Fig. 2) is attached to the threaded extension 54 through the connector 82, which is the extension 54. The washer 84 and nut 86 in contact with the extension 54 and press the o-ring 62 (Fig. 3), creating a sealing contact between the first section 32 of the housing 30 and the groove 58 of the grounding studs 44. Another washer 88 and the other nut 90 (Fig. 2 and 3) contact with extension 54 and fix the connector 82 on the extension 54.

When the cable inlet 26 are cables, it is possible to mount the connector 28 (Fig. 3) on the mounting surface 18 of the outer surface of the wall 12 when the remote stub 20 to provide openings 21. In the flange 94 of the first section 32 has another groove 92 to the o-ring. The groove 92 holds the o-ring 96, creating a sealing fit of the first section 32 of the housing 30 relative to the mounting surface 18 of the wall 12.

In another exemplary embodiment (Fig. 5) modified soedinitel is but above and shown in Fig. 2 and 3. The connector 28a also has shortened the grounding stud 44a hexagonal section 56a, paired with a hexagonal bore 36a. All other characteristics of the connector and grounding studs are the same as described above. Shortened connector 28a is designed for use in those cases when it is preferable for the external connection only with the wall 12, while the connector 28 shown in Fig. 1-4, can either be inserted into the cable entry 26 (Fig. 1 and 2) or attached directly to the outside wall 12 (Fig. 3).

When the pin 44 is inserted into the connector 28. The first end 46 projects from the housing 30. The clutch 70 is screwed into the input 34a. External ground wire 68 is inserted through the sleeve 70 and the transverse hole 52. The clutch 70 tighten to create a seal wire 68. The screw 64 with the head regulate to contact and secure the end 60 of the wire into the hole 52. The cover 74 of the housing with the provision of the seal screw on the housing 30. Section 32a having the form of a coil, is inserted into the cable entry 26 and seal this input. The nut 86 regulate to create a seal between the pin 44 and the housing 30. Internal ground wire 80 is attached to the extension 54 and fix it provide a sealing ring 96, and the flange 94 mounted on the mounting surface 18 located on the outside wall 12. The nut 86 to regulate the compression of the sealing rings 96 and 62 and seal the joint studs 44 and the housing 30 with the mounting surface 18 of the wall 12. Internal ground wire 80 is attached to the extension 54 and is clamped by a nut 90.

In another case, use a shortened connector 28a with the pin 44a. O-ring 96 is inserted into the groove 92 and flange 94 mounted on the mounting surface 18 of the wall 12. The nut 86 to regulate the compression of the sealing rings 96 and 62 and seal the joint pins 44a and body 30a with a mounting surface 18 on the outside of the wall 12. Internal ground wire 80 is attached to the extension 54 and is clamped by a nut 90.

As you can see, the main advantage of these embodiments is that the connector with the external junction on earth circuit provides a sealed connection of internal and external grounding wires through the wall of the cable casing or through the cable entry cable casing and allows you to disconnect and re-connect the wires in such a way that preserves the integrity of the seal.

Although shown and described illusary and replacement, and in some instances some features of embodiments can be used without a corresponding use of other features. In this regard, the attached claims made in expanded form and consistent with the scope of the described embodiments.

1. Connector with external decoupling on earth circuit, comprising a housing, a grounding pin passing through the housing, and a grounding stud has a first end for entry into the appropriate cable casing and a second end for placement outside of the cable casing, the means of connection of the grounding wire with the first and second ends of the grounding stud and means sealing the ground stud inside the case.

2. The connector under item 1, characterized in that it further comprises a means of limiting the rotation of the ground stud inside the case.

3. The connector under item 1, characterized in that it further comprises the first section of the housing having an outer surface in the form of a coil, and the second section of the housing having an input for a ground wire, made in one piece with this section.

4. The connector under item 1, characterized in that the housing has a through profiled is profiled through the hole.

5. The connector under item 1, characterized in that the seal means of the grounding stud includes sealing elements located respectively near the first and second ends of the body.

6. The connector under item 1, characterized in that the grounding stud contains made it a hole to accommodate the grounding wire and the screw head for installation in a hole to accommodate the grounding wire with the aim of bringing into contact and secure the ground wire to the grounding stud.

7. The connector under item 1, characterized in that it further comprises a cap for threaded connection to the ground stud and create a sealing contact with the shell.

8. The connector under item 1, characterized in that the first end of the ground stud contains a plot that is tightly in contact with the body.

9. Connector with external decoupling on earth circuit, comprising a housing with made it through a shaped hole, grounding stud, shaped for passage through a shaped opening in the housing in such a way as to limit the rotation of the ground stud inside the case, with earthing pin imeetsya, moreover, the building contains made input for external ground wire, means adjacent to the second end of the ground stud to accommodate external ground wire, a means of connecting the internal ground wire to the first end of the ground stud, the tool body seal with the cable casing, and means sealing the ground stud inside the case.

10. The connector under item 9, wherein the housing further comprises a first section having an outer surface in the form of a coil.

11. The connector under item 9, characterized in that the tool body seal with the corresponding cable casing contains the outer surface of the first section of the shell in the form of a coil for the paired contact with cable entry made in the appropriate cable casing.

12. The connector on p. 11, characterized in that the seal means of the grounding stud on the inside of the housing contains the sealing elements adjacent to the opposite ends of the housing.

13. The connector under item 9, characterized in that the grounding pin has made it a hole to accommodate the external earthing about the contact and retention of the external grounding wire to the grounding stud.

14. The connector under item 9, characterized in that it further comprises a cap for threaded connection to the ground stud and create a sealing contact with the shell.

15. The connector under item 9, characterized in that the first end of the ground stud contains a plot that is tightly in contact with the body.

16. The connector under item 9, characterized in that it further comprises a cover to create a sealing contact with the housing, the means of retaining the external ground wire in contact with the second end of the ground stud and means holding the inner ground wire in the United position with the first end of the ground stud.

17. The connector under item 9, characterized in that the housing is equipped with an input for placing added sealing coupling a ground wire.

18. Connector with external decoupling on earth circuit for use in conjunction with a casing cable splices containing casing cable splices, comprising a wall bounding an inner chamber and an outer surface, a housing mounted on the casing cable splices, passing through the body grounding stud having a first end, scaredto connect the internal ground wire to the first end of the ground stud, the means of connecting an external ground wire next to the second end of the ground stud, the first tool designed for sealing the housing to the casing cable splices, and the second tool that is designed to seal the ground stud inside the case.

19. The connector on p. 18, wherein the housing further comprises a first section housing having an outer surface in the form of a coil.

20. The connector under item 18, characterized in that the housing has made it through a shaped hole, and the grounding pin has an outer surface shaped for the paired contact with through a shaped hole.

21. The connector under item 18, characterized in that the means of connecting an external ground wire includes a hole to accommodate the external ground wire, made in the grounding stud and the screw head to put in the hole to accommodate the external ground wire with the aim of bringing into contact and retention of the external grounding wire to the grounding stud.

22. The connector under item 18, characterized in that the first tool designed for tight crepe is imago engagement with cable entry, made in the casing of the cable splices.

23. The connector on p. 22, characterized in that the housing has a cover, and a second tool that is designed to seal the grounding stud in the housing, includes a first seal located between the stud and the housing, and a second seal located between the housing and the cover.

24. How tight connection to the external grounding wire with cable casing containing operations provide housing connector junction on earth circuit, having made it through a shaped orifice, and input for external grounding wire; the introduction of grounding studs, shaped for mating engagement with cross-cutting profiled bore for preventing rotation of the stud in the specified hole, sealed external ground wire in the input housing to the external grounding wire, mounting external ground wire to one end of the grounding pins, connect the other end of the grounding stud to the internal grounding wire, sealing the first end of the ground stud relative to the first end of the housing, sealing the first end of the housing to the cab of the junction on earth circuit, comprising a housing with made it through a shaped hole, grounding stud, shaped for passage through the opening in the housing to limit the rotation of the ground stud inside the housing, and a grounding stud has a first end protruding from the housing, and a second end terminating within the housing, and the housing includes made it enter near to the second end of the ground stud to accommodate the external ground wire, means adjacent to the second end of the ground stud to accommodate external ground wire, means adjacent to the second end of the ground stud, for attaching the ground wire to the stud, means sealing the ground wire in the input, and means sealing the opposite ends of the grounding studs inside.

 

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