Device for sealing a cable feedthrough opening in a switch gear cubicle.

p0001The invention relates to a device for closing an opening provided in a wall or the floor of a cabinet opening for cable entry from the control cabinet.

p0002To lead cables that are connected to the switchgear in the control cabinet to the outside, an opening must be provided in the wall or the floor of the cabinet. If the wall or the bottom of each plate is, nowadays mostly to proceed such that a gap between the plates is released, through which the cables are plugged. The joint is sealed for example by two rubber strips between which the cables are arranged. Especially when cable very different diameter have to be sealed, but leaves to be desired in this method the density desired.

p0003Object of the invention is to provide a device of the type mentioned are available which ensures high tightness.

p0004This is inventively achieved with the device characterized in claim 1. In the dependent claims advantageous embodiments of the invention are shown.

p0005Under a cabinet according to the invention, each arranged in a housing electrical switchgear to understand, so for example, a switch or a control panel. Further, in a bore according to the invention each cylindrical opening to be understood, irrespective of how it has been prepared.

p0006With the device according to the invention are cables that are led out of a cabinet, sealed reliably. At the same time, the cables are secured against train.

p0007The opening in the cabinet wall or plate as recited through which the cables exit is, according to the invention preferably produced in that the floor or the wall of two or more plate-shaped parts is between the plates a gap is left free in the arranged the base body becomes.

p0008However, it may be a hole that has been mounted in the bottom or the wall of the cabinet at the opening also. In this case the basic body is placed on the hole and fastened, for. Example, the cabinet on the floor or the wall.

p0009An embodiment of the device according to the invention is explained in more detail with reference to the drawing. therein show<dl id="dl0001"><dt>Fig. 1</dt><dd>a perspective view of a portion of the device with the removed plug or screw of removed; and</dd><dt>FIG. 2</dt><dd>a section along the line II-II in FIG. 1.</dd></dl>

p0010As shown in FIG. 2 between two plates 1 and 2 at the bottom of a cabinet provided a fugue in which a device is located 3 which closes the joint tight.

p0011The device 3 is for performing a plurality of cables from the interior of the cabinet to the outside, wherein in the drawing (Fig. 2) only such a cable 6 is shown.

p0012The device 3 comprises a base body 7, which is substantially cuboidal and the joint between the two plates 1 and 2 closes. The base 7 is divided longitudinally, ie it has a from one base to another base and along its entire length extending, ie perpendicular to the panels 1 and 2 level standing dividing 8 on which the body 7 in the two parts 9 and 10 Splits.

p0013In base 7 more from one base to the other extending bores 11, 12 are provided through which in the middle of the dividing 8 passes. D. h., The longitudinal central axis of the bores 11 and 12 and the dividing 8 lie in one plane. for simplicity, only one hole 11 described in more detail below.

p0014The bore 11 has an extended, so a large-bore portion 13 with an internal thread 14 and having a smaller in diameter, tapered section 15, wherein between the two sections 13 and 15 a slightly to section 15 conically tapered annular shoulder 16 is formed , A further taper 16 'of the bore 11 is provided at the lower, ie remote from the threaded portion 13 the end of the tapered portion 15th In the base holes 11 and 12 plug 17, 18 are inserted. The plugs 17, 18 are made of a rubber elastic material, ie in addition to rubber for example a rubber, a plastic or the like.

p0015Each plug 17, 18 has in circumferential direction evenly distributed, thus with three plugs offset by 120 ° the longitudinal bores 19, 20, 21 and 22, 23, 24, can be passed through each of which a cable 6th To bring in the cable 6 into the longitudinal bores 19 to 24, is one from one to the other end of each bore 19 to 24 extending longitudinal slot 25, 26, 27 and 28, 29, 30 are provided, through which the cable 6 from the outside in hole 19 to 24 can be plugged. Each plug 17, 18 has at its upper end to the threaded portion 13 adjacent in the arrangement of the plug 18 in the bore 11, an extended, ie, a large outer diameter having peripheral portion 31, 32 which with its lower edge according to FIG . 2 bears on the annular shoulder 16 in the main body bore 11. Otherwise, the outer diameter of the peripheral portions 31, 32 dimensioned so that a narrow gap between the peripheral portion 31, 32 and the extended threaded portion 13 is formed.

p0016The lower tapered portion 33, 34 matches as closely as possible into the tapered section 15 of the base body bore 11 and is provided with a knurled 35th

p0017In the internal thread 14 of the expanded portion 13 of the basic body bore, a screw 36 is screwed with an external thread 37th The head 38 of the screw 36 is provided with knurling 39 to facilitate the screwing by hand.

p0018The screw 36 is provided with a longitudinal bore 40 which has a diameter so large that the section practically forms a pipe stub with external thread 37th The screw 36 is divided along its length into two halves 41, 42nd In the partition joint 43, on which the two Hälfen 41, 42 abut one another, each represent a dowel pin 44 is provided as a form-fit on one half 41 and a bore 45 into which the locating pin 44 can be inserted, is provided on the other half 42 so that the two halves 41, 42 of the screw 36 opposite to each other are not displaced, so the thread of the external thread 37 of the screw 36 remains intact.

p0019The plug 17, with its end facing the longitudinal bore 40 in the screw 36 has a conical section 46. Ie., The internal diameter of the bore 40 increases towards this end to form a narrow peripheral edge 47. The narrow peripheral edge 47 penetrates into the gap between the extended peripheral portion 31 of the plug 18 and the panded housing section 13 of the base body bore 11 a when the screw 36 is screwed into the enlarged threaded portion 13 of the base body bore 11th Due to the tapered diameter of the conical portion 46 of the said plug 18 adjacent end of the longitudinal bore 40 away of the circumferential portion 31 of the stopper 18 is compressed during the further screwing of the screw 36 and thus the cable in the bore 22 in the plug 18 are securely sealed.

p0020The two halves 9, 10 of the base 7 are pressed against each fixed by screws 48 to 50. Thus, the half 9, 10 of the base body 7 can not relation to each other, so the thread of the internal thread 14 of the base holes 11, 12 is kept intact, are Teilungsgfuge 8 on one half 9 of the body 7 dowel pins 51 and on the other half 10 holes 52 are provided, which engage in the dowels 51st Thus, the halves 9 and 10 are secured by positive locking securely against displacement.

p0021At its two longitudinal sides, the base body (7) in longitudinal grooves 53, 54,, 56 is provided in each longitudinal groove 53, 54 a seal 55th

p0022In the longitudinal grooves 53, 54, the plates 1, 2 are engaged with their folded edges 57, 58, so that the bent portions 57, 58 sealingly abut against the seals 55, 56th

p0023The main body 7 may be formed as long as the gap between the two plates. 1, 2 If a few holes 11, 12 for carrying out the cable 6 are sufficient, however, the base body 7 can form only one segment, said one or more further segments are provided to close the gap between the plates 1, the second That or the other segments correspond to the base portion 7, however, are not divided into two and have no holes 11, 12. In this case, the base body therefore consists of several segments divided transversely to the separation joint 8, wherein at least one of the segments is provided with bores 11, 12 is provided. The abutting segments are sealed by a seal 59 on the front side.

p0024However, it may be provided to seal the joint outside the body 7 instead of further segments also plates.

p0025The holes do not need 11, 12 in the base body 7 can be sealed by blind screws in accordance with the screw 36, but massive, so no hole formed 40 without dividing 43rd Similarly, the unused holes can be 19 to 24 sealed into the plug 17, 18 by blind stoppers.

p0026If the cables connected to the switchgear in the cabinet, to be led out from the cabinet, that is through the wall thereof or the bottom thereof, two plates 1, 2 of the wall or of the base are arranged so as to form a joint ,

p0027Then, 10 of the base body 7 by means of the locating pins 51 and bores 52, the two halves 9, fitted together so that the bores 11, 12 enclose the cable 6th Then the screws 48 to 50 are screwed and tightened.

p0028The body can now be pushed into the gap between the plates. 1, 2 Subsequently, the cable 6 in the holes 19 to 24 of the plug 17 are, 18 inserted through the longitudinal slots 25 and 30. Several plugs 17, 18 are available, which differ in the number of holes 19 to 24 and the diameter of the holes. Ie., In addition to the illustrated plugs 17, 18, each with three holes 19 to 21 and 22 to 24 are z. B. plugs with only one large hole for a thick cable and plug with four smaller inner diameter having holes for a thinner cable to choose from.

p0029Then, the two halves 41, 42 of the screw 46 by means of the locating pins 44 and the bores 45 put together so that they enclose the cable or cables 6, which, through the bore or the bores 19 to 24 of the plugs 17, 18 pass which have been inserted into the bores 11, 12 of the body 7 into which the screws 36 are screwed. After screwing the screw 36 into the respective hole 11, 12 of the main body 7, the cable 6 are sealed.