SI9520072A

SI9520072A - Cable coupling box

Info

Publication number: SI9520072A
Application number: SI9520072A
Authority: SI
Inventors: Walter Bogg
Original assignee: Felten & Guilleaume Ag Oester
Priority date: 1994-06-13
Filing date: 1995-05-04
Publication date: 1997-06-30
Also published as: AT1163U1; EP0765538A1; FI112128B; DK0765538T3; SK152896A3; WO1995034929A1; FI964519A0; FI964519A; HU218641B; CZ288670B6; HUT76793A; ATE167336T1; CZ345696A3; EP0765538B1; HU9603180D0; SK280290B6; ES2119430T3; DE59502524D1

Abstract

Described is a cable coupling box (1) consisting of two casing halves (2 and 3) sealed together round the edges by means of seals (10, 11). The seals (10, 11) end near cable lead-ins (4) in the coupling box (1), leading in to a splice joint inside the coupling box (1). In order to seal the two casing halves (2 and 3) together, they are held together by means of screws so that the seals (10 and 11), fitted in grooves, provide a seal round the edge of the coupling box (1). Fitted in the lead-ins (4) are sealing rings (20) whose outside surfaces rest against the end surfaces (14) of the seals (10, 11). The inside surfaces of the sealing rings (20) rest against the surface of the cable inserted in the lead-in. In addition, pressure elements (25) are screwed into the lead-ins (4), elastically deforming each sealing ring (20) so that the outside surface of the sealing ring (20) is pressed against the inside surface (15) of the lead-in (4), including the end surface (14) of the seal (10, 11), and its inside surface is pressed against the surface of the cable.

Description

Felten & Guilleaume Austria AG, Schrems, AvstrijaFelten & Guilleaume Austria AG, Schrems, Austria

Kabelska sklopilna obojkaCable clamping sleeve

Izum se nanaša na kabelsko sklopilno obojko za sprejem spletkov kablov, predvsem kablov za prenos informacij, ali električnih vodov, ki obstoji iz dveh polovičnih okrovov, pri čemer je na čelnih ploskvah obojke predvidena vsaj ena prehodna odprtina za kabel in pri čemer so med polovičnima pokrovoma nameščena tesnilka, ki so vstavljena v utore v robovih obeh polovičnih okrovov, ki so obrnjeni drug proti drugemu, in tesnila v področju prehodnih odprtin za kabelThe invention relates to a cable coupling sleeve for receiving cable clips, in particular information transmission cables, or power lines consisting of two half-enclosures, at least one transitional opening for the cable being provided on the front faces of the sleeve, and between half-caps being provided seals inserted into slots in the edges of the two half-frames facing each other and seals in the region of the cable apertures

Tovrstna sklopilna obojka je poznana iz EP-A 531 276. Pri tej poznani sklopilni obojki so v področju prehodnih odprtin za kabel na čelnih ploskvah predvideni zunaj nalegajoči tesnilni obroči, ki jih kabelski uvodni nastavki pritisnejo ob odebeljene konce tesnil, ki ležijo v področju čelnih ploskev in ki so predvidena med polovičnimi okrovi znane kabelske sklopilne obojke.This coupling sleeve is known from EP-A 531 276. In this known coupling sleeve, outer sealing rings are provided in the region of the cable openings in the front faces, which are pressed by the cable glands against the thickened ends of the seals lying in the area of the front surfaces. and which are provided between the half-shells of the known cable coupling sleeve.

Pri kabelski sklopilni obojki, ki je poznana iz EP-A 531 276, je tesnenje prehodnih odprtin za kabel zadovoljivo rešeno s pomočjo zunaj na čelnih ploskvah kabelske sklopilne obojke nalegajočih tesnilnih obročev. Izdelovanje tesnila pa zahteva povečano pozornost, ker je treba čelne ploskve in predvsem konce vzdolžno potekajočih tesnil ohraniti brez umazanije. Razen tega nastavljanje obročev ni vedno preprosto, ker jih je treba držati, dokler kabelski uvodni nastavki niso trdno priviti.In the case of the cable clamp known from EP-A 531 276, the sealing of the cable passage openings is satisfactorily solved by means of externally on the front faces of the cable clamping sleeve of the sealing rings. However, the manufacture of gaskets requires increased attention because the front faces, and especially the ends of longitudinally running gaskets, must be kept free of dirt. In addition, it is not always easy to set the rings, because they must be held in place until the cable glands are tight.

Tesnila, ki so poznana iz spisov CH-PS 566 658 ali DE-AS 20 50 536, zagotavljajo sicer dobro tesnenje, rokovanje s tesnili, ki so poznana iz omenjenih spisov, pa je zahtevno. Tudi vstavljanje teh tesnil v polovične okrove znanih kabelskih sklopilnih obojk ni vedno preprosto.The seals known from the files CH-PS 566 658 or DE-AS 20 50 536 provide otherwise good sealing, but the handling of seals known from the said files is difficult. Also, it is not always easy to insert these gaskets into the half housings of known cable couplings.

Naloga izuma je v tem, da se preskrbi tesnilo za kabelske sklopilne obojke, ki se preprosto izdela in preprosto vgradi.It is an object of the invention to provide a gasket for cable couplings that is simple to manufacture and easy to install.

Z izumom je ta naloga v bistvu rešena s tem, da konci tesnil ležijo v področju prehodne odprtine za kabel, da je v prehodni odprtini nameščen tesnilni obroč iz elastične snovi in da je predviden pritisni del, s katerim se lahko obremeni tesnilni obroč in ga elastično deformira.The invention is essentially solved by the fact that the ends of the seals lie in the region of the cable passage opening, that a sealing ring of elastic material is provided in the passage opening, and that a pressure part is provided to load the sealing ring and make it resilient deforms.

Prednostni in zelo primerni izvedbeni primeri kabelske sklopilne obojke po izumu so predmet podzahtevkov.Preferred and very suitable embodiments of the cable coupling sleeve of the invention are subject to sub-claims.

Pri tesnilu po izumu se zadržijo same po sebi dane prednosti tesnila po spisu EP-A 531 276, pri čemer pa se poenostavi izdelovanje tesnila. Tudi skoraj ni nevarnosti, da bi se konci tesnil zamazali, ker so dobro zaščiteni pred umazanijo s pomočjo namestitve v notranjosti prehodnih odprtin za kable.The seal of the invention retains the inherent advantages of the seal according to EP-A 531 276, while simplifying the manufacture of the seal. Also, there is almost no risk of the ends of the seals getting dirty because they are well protected against dirt by installing them inside the cable apertures.

Nadaljne podrobnosti in značilnosti izuma izhajajo iz sledečega opisa na risbi prikazanega izvedbenega primera kabelske sklopilne obojke po izumu, pri čemer je ta na risbi prikazana v pogledu zvrha z le delno odlomljenim zgornjim polovičnim okrovom.Further details and features of the invention derive from the following description in the drawing of an exemplary embodiment of the cable coupling sleeve according to the invention, in which the drawing is shown in plan view with only a partially broken upper half-shell.

V prikazanem izvedbenem primeru kabelske sklopilne obojke 1 po izumu le-ta obstoji iz polovičnega okrova 2 in iz drugega, prednostno identično izoblikovanega polovičnega okrova 3. Oba polovična okrova 2 in 3 se vzdolž svojih robov povežeta drug z drugim s pomočjo vijakov, ki so vtaknjeni skozi luknje 5.In the embodiment shown, the cable coupling sleeve 1 of the invention consists of a half-box 2 and a second, preferably identical-shaped half-box 3. Both half-boxes 2 and 3 are connected together by their edges by means of screws which are inserted through holes 5.

Kabelska sklopilna obojka 1 ima v prikazanem izvedbenem primeru na svojih ozkih stranicah 6 po dve prehodni odprtini 4 za kabel, ki ju skupaj omejujeta polovična okrova 2 in 3.The cable coupling sleeve 1, in the embodiment shown here, has on its narrow sides 6 two transverse openings 4 for the cable, which are jointly bounded by the half housings 2 and 3.

Za tesnenje kabelske sklopilne obojke 1 sta predvideni tesnili 10 in 11, ki se vstavita v utore, ki so predvideni v področju ozkih stranic 6 in dolgih stranic 7 kabelske sklopilne obojke 1. Podrobno gledano so v prikazanem izvedbenem primeru v področju dolgih stranic 7 predvidena tesnila 10 in v področju ozkih stranic 6 tesnila 11. Konci 13 tesnil 10 in 11 so razkriti v področju prehodnih odprtin 4 kabelske sklopilne obojke 1. Pri tem so konci 13 tesnil 10 in 11 v pogledu zvrha izoblikovani ukrivljeno (v smeri pogleda na risbo), pri čemer ima končna ploskev 14, ki kaže v smeri prehodne odprtine 4, tesnil 10 in 11 obliko, ki je prilagojena obrisu prehodne odprtine 4 in jo dopolnjuje, tako da ploskve 14 potekajo v smeri notranjih ploskev 15 prehodne odprtine.For sealing the cable coupling sleeve 1, seals 10 and 11 are provided, which are inserted into the grooves provided in the narrow sides 6 and long sides 7 of the cable coupling sleeve 1. In detail, in the embodiment shown, long seals 7 are provided in the embodiment shown. 10 and in the region of the narrow sides 6 of the seal 11. The ends 13 of the seals 10 and 11 are disclosed in the region of the apertures 4 of the cable coupling sleeve 1. In this case, the ends 13 of the seals 10 and 11 are curved in the plan view (in the direction of the drawing view), wherein the end face 14 pointing in the direction of the aperture 4 has seals 10 and 11 having a shape adapted to the contour of the aperture 4 and complementing it so that the surfaces 14 extend in the direction of the inner surfaces 15 of the aperture.

Opozoriti je treba na to, da pri kabelski sklopilni obojki z le eno prehodno odprtino 4 na ozkih stranicah odpadejo tesnila 11 in sta nato predvideni le dve tesnili 10. V tem smislu je pri več kot dveh prehodnih odprtinah 4 na enem in/ali več drugih koncih kabelske sklopilne obojke 1 predvidenih več tesnil 11. Razume se, da se izum lahko uporabi tudi pri kabelski sklopilni obojki, pri kateri je število prehodnih odprtin 4 na ozkih stranicah 6 različen - npr. ena prehodna odprtina 4 na ozki stranici 6 in dve prehodni odprtini 4 na drugi ozki stranici 6.It should be noted that in the case of cable couplings having only one through hole 4 on the narrow sides, the seals 11 fall away and then only two seals are provided 10. In this sense, for more than two passage openings 4 there is one and / or more others. it is understood that the invention can also be used with cable clamp sleeves in which the number of passage openings 4 on narrow sides 6 is different - e.g. one through hole 4 on the narrow side 6 and two through holes 4 on the other narrow side 6.

Oblika prereza tesnil 10 in 11 je poljubna in je lahko pravokotna, kvadratna, pravokotna z zaobljenimi vogali, eliptična ali polkroglasta, zamisliti pa si je možno tudi obliko prereza, ki je predlagana za tesnila po spisu EP-A 531 276 in ki je zvezdasta prerezna oblika, ki je obdana z ukrivljenimi linijami.The cross-sectional shape of the seals 10 and 11 may be rectangular, square, rectangular with rounded corners, elliptical or semicircular, and the cross-sectional design proposed for seals according to EP-A 531 276, which is star-shaped, may be imagined a shape that is surrounded by curved lines.

V prehodno odprtino 4 za kabel se vsakokrat vloži tesnilo 20 iz elastično deformabilnega materiala, npr. iz elastične umetne snovi. Tesnilni obroč ima stopničast zunanji obris, pri čemer s stopnico 22, ki je obrnjena proti notranjosti kabelske sklopilne obojke 1, nalega na ukrivljenih končnih ploskvah 14 tesnil 10 in 11. S stopničko 21, ki pri uporabi kaže navzven, tesnilni obroč 20 vprijema v pritisni del 25. Pritisni del 25 je v prikazanem izvedbenem primeru opremljen z zunanjim navojem 26, tako da se lahko zavije v ustrezen notranji navoj prehodne odprtine 4. Pritisni del 25 pritiska pri zavijanju v prehodno odprtino ob ploskev 28 tesnilnega obroča 20, tako da se le-ta elastično deformira in se tesneče s svojo notranjo ploskvijo prileže na zunanjo ploskev kabla, ki je vtaknjen skozi pritisni del 25 in tesnilni obroč 20. Nadalje tesnilni obroč 20 s svojo zunanjo ploskvijo tesneče naleže na notranjo ploskev 15 izstopne odprtine 4 in na končne ploskve 14 koncev 13 tesnil 10 in 11.In each case, a seal 20 of elastically deformable material, e.g. made of elastic plastic. The sealing ring has a stepped outer outline, with the step 22 facing the inside of the cable coupling sleeve 1 resting on the curved end faces 14 of the seals 10 and 11. With the step 21 pointing inwards, the sealing ring 20 engages in a push in the embodiment shown, in the embodiment shown, is provided with an outer thread 26 so that it can be screwed into the corresponding internal thread of the passage opening 4. The pressing part 25 is pressed when turning into the opening through the faces 28 of the sealing ring 20, so that only - elastically deforms and seals with its inner surface fits into the outer surface of the cable, which is inserted through the pressure portion 25 and the sealing ring 20. Further, the sealing ring 20 with its outer surface seals fits into the inner surface 15 of the outlet opening 4 and to the end surfaces 14 ends 13 seals 10 and 11.

Tako tesnilni obroč 20 kot tudi pritisni del 25 sta lahko zaradi preprostejše montaže na kabel vsaj preprosto zarezana. Pri tem je lahko zareza tesnilnega obroča 20, kot je prikazano pri izvedbenem primeru, izvedena stopničasto, da se zagotovi zanesljivo tesnenje v področju zareze.Both the sealing ring 20 and the pressure portion 25 can be cut at least simply for ease of installation. In this case, the notch of the sealing ring 20, as shown in the embodiment, can be stepped to ensure reliable sealing in the notch area.

Zarezi 30 v pritisnem delu 25 lahko leži nasproti šamir (ni prikazan), tako da se pritisni del 25 lahko razpre in zapre. Zaprta lega, ki je prikazana na risbi, se lahko zagotovi s pomočjo povezovalne priprave 31.The notches 30 in the pressure portion 25 may lie opposite the shamers (not shown) so that the pressure portion 25 can be opened and closed. The closed position shown in the drawing may be provided by means of a coupling device 31.

Alternativno k povezovalni pripravi 31 se lahko pritisni del 25 drži v svoji zaprti legi tudi s pomočjo vijakov. Zamisliti pa si je možno tudi izvedbeni primer, v katerem je pritisni del 25 razdeljen v dva polovična okrova in se drži skupaj z dvema diametralno nasproti ležečima vijakoma, potem ko je bil nataknjen na kabel.Alternatively to the connecting device 31, the pressing part 25 may be held in its closed position also by screws. However, one can also imagine an embodiment in which the pressure portion 25 is split into two half housings and held together by two diametrically opposite screws after being attached to the cable.

Možen je tudi izvedbeni primer pritisnega dela 25, ki ima gladko steno (brez navoja 26), ki drseče oprijema v prehodno odprtino 4 - brez navoja 27 na notranji ploskvi 15. Takšen pritisni del 25 je lahko pritisnjen proti tesnilnemu obroču 20 s pomočjo vijakov, ki so zaviti v navojne izvrtine v ozki stranici 6 kabelske sklopilne obojke 1.An embodiment of a pressure portion 25 having a smooth wall (without thread 26) which slides grip into the transition opening 4 - without thread 27 on the inner surface 15 is also possible. Such pressure portion 25 may be pressed against the sealing ring 20 by means of screws, which are wrapped in threaded holes in the narrow side 6 of the cable coupling sleeve 1.

Namesto opisanega tesnilnega obroča 20 se lahko uporabijo tudi tesnilni obroči v obliki obročastega dela z izsekanimi obroči zaradi prilagoditve premera, torej večdelni tesnilni obroči. V drugi izvedbeni obliki se okoli kabla, ki ga je treba uvesti, položijo trakovi različne širine in debeline, ki nato prevzamejo funkcijo tesnilnega obroča 20.Instead of the described sealing ring 20, sealing rings in the form of an annular section with punched rings may also be used to adjust the diameter, i.e., multi-part sealing rings. In another embodiment, tapes of varying widths and thicknesses are placed around the cable to be introduced, which then assumes the function of a sealing ring 20.

Da se ne zaprejo prehodne odprtine 4, ki so potrebne za uvajanje kablov in odstranjevanje kablov, so predvideni zaporni deli, ki v bistvu ustrezajo tesnilnim obročem 20, nimajo pa prehodne odprtine. Ti zaporni deli se vstavijo v prehodne odprtine 4, ki niso uporabljene, in se s pomočjo pritisnega dela 25 elastično deformirajo, tako da s svojo zunanjo ploskvijo tesneče nalegajo na končne ploskve 14 tesnil 10, 11 in notranjo ploskev 15 prehodne odprtine 4.In order not to close the passage openings 4 necessary for cable entry and cable removal, closure portions are provided which essentially correspond to the sealing rings 20 but do not have a passage opening. These locking parts are inserted into the openings 4, which are not used, and are elastically deformed by means of a pressure part 25, so that their outer surface seals against the end faces 14 of the seals 10, 11 and the inner face 15 of the opening 4.

V povzetku se izum lahko npr. predstavi na naslednji način.In summary, the invention may e.g. present as follows.

Kabelska sklopilna obojka 1, ki obstoji iz dveh polovičnih okrovov 2 in 3, se zatesni s tesniloma 10, 11 v področju svojega oboda. Tesnili 10, 11 se končujeta v področju prehodnih odprtin 4 za kable, ki so predvidene v kabelski sklopilni obojki 1, pri čemer vodijo kabli do spletka, ki je nameščen v notranjosti sklopilne obojke 1.The cable coupling sleeve 1, which consists of two half housings 2 and 3, is sealed with seals 10, 11 in the region of its circumference. The seals 10, 11 terminate in the region of passage openings 4 for the cables provided in the cable coupling sleeve 1, leading the cables to the intrusion located inside the coupling sleeve 1.

Da polovična okrova 2 in 3 tesnita drug glede na drugega, sta le-ta drug z drugim povezana z vijaki, tako da tesnili 10 in 11, ki sta nameščeni v utorih, tesnita sklopilno obojko 1 po vsem njenem obodu. V prehodne odprtine 4 so vstavljeni tesnilni obroči 20, ki s svojo zunanjo ploskvijo na končnih ploskvah 14 nalegajo na koncih 13 tesnil 10,11. Notranja ploskev tesnilnih obročev 20 nalega na zunanjem obodu uvedenega kabla. Nadalje so predvideni pritisni deli 25, ki se lahko zavijejo v prehodne izvrtine 4 in s pomočjo katerih se tesnilni obroč 20 elastično deformira, tako da s svojo zunanjo ploskvijo nalega na notranjo ploskev prehodne odprtine 4, vključujoč končne ploskve 14 tesnil 10,11, in njegova notranja ploskev se pritisne ob zunanji obod kabla.In order for the half housings 2 and 3 to seal against each other, they are connected to each other by screws, so that the seals 10 and 11, which are located in the grooves, seal the coupling sleeve 1 around its circumference. Sealing rings 20 are inserted into the passage openings 4, which, with their outer surface on the end faces 14, engage at the ends 13 of the seals 10,11. The inner face of the sealing rings 20 rests on the outer circumference of the introduced cable. Further provided are pressure members 25 which can be folded into the through holes 4 and by means of which the sealing ring 20 is elastically deformed so that by its outer surface it rests on the inner surface of the through hole 4, including the end faces 14 of the seals 10,11, and its inner surface is pressed against the outer circumference of the cable.

Claims

Patent claims

A cable coupling sleeve (1) for receiving cable clips, in particular information or power cables, existing from two half-enclosures (2,3), with at least one passage opening provided on the front faces of the coupling sleeve (1). (4) for the cable and between which the seals (2, 3) are fitted with seals (10, 11) whose ends (13) lie in the region of the passage opening (4) for the cable and which are inserted into the grooves against each other the inverted edges of both half housings (2, 3) and the sealing rings (20) of elastic material which are inserted into the passage openings (4) for the cable, characterized in that the ends (13) have seals (10, 11) located in the region of the apertures (4) for the cable, the curved end faces (14), which are oriented so as to match the inner surface (15) of the apertures (4) to the seals (20) to have seals (20) with a stepped outer outline with steps (21, 22) that there is provided a pressure portion (25) with which in the direction o the passage openings (4) are loaded with an elastically deformable sealing ring (20), and that one of the steps (22) is adapted to the stage of the passage opening (4) and the curved end faces (14) of the seals (10,11) and the other a step (21) adapted to a portion of a pressure portion (25) which engages the passage opening (4).

Cable clamping sleeve according to claim 1, characterized in that the sealing ring (20) is cut in at least one place.

Cable clamping sleeve according to claim 2, characterized in that the notch (29) in the sealing ring (20) is bent at least twice.

Cable clamping sleeve according to one of claims 1 to 3, characterized in that the sealing ring has removable rings that can be adapted to the respective cable diameter.

Cable clamping sleeve according to claim 1, characterized in that the sealing ring is self-supporting by placing strips of different widths and / or thicknesses around the cable to be inserted.

Cable clamping sleeve according to one of Claims 1 to 5, characterized in that the pressure part (25) can be screwed into the opening (4).

Cable coupling sleeve according to one of claims 1 to 5, characterized in that the pressure part (25) is pressed on the sealing ring (20) by means of screws screwed into the narrow side (6) of the cable coupling sleeve (1). ), which is inserted into the previous opening (4).

Cable clamping sleeve according to one of Claims 1 to 7, characterized in that the pressing part (25) consists of two half rings which are connected to each other by a hinge and are fixed in their unfolded position by means of a connecting device (31). or screws.

Cable clamping sleeve according to one of claims 1 to 7, characterized in that the pressing part (25) consists of two half rings which can be secured to each other by screws.

Cable clamping sleeve according to one of Claims 1 to 9, characterized in that locking members are provided, which are formed in accordance with the sealing ring (20) and which can be inserted into passage openings (4), which are not required for introduction or removal of cables, and may be elastically deformed by means of a pressure member (25), the closure members being formed in the form of plates.