CS207205B1

CS207205B1 - Stopping inlet

Info

Publication number: CS207205B1
Application number: CS200079A
Authority: CS
Inventors: Lubor Mancel
Original assignee: Lubor Mancel
Priority date: 1979-03-27
Filing date: 1979-03-27
Publication date: 1981-07-31

Description

Vynález sa týká upchávkovej vývodky pre ohybné vodiče, najma elektrické ohybné vodiče plochého tvaru, tvorenej telesom, v ktorom je uložená aspoň jedna tesniaca objímka, rieši problém unifikácie týchto vývodiek pre širší sortiment káblov, novou konštrukciou telesa, tesniacich a upevňovacích elementov vývodky.The invention relates to a gland bushing for flexible conductors, in particular a flat-shaped electrical flexible conductor formed by a body in which at least one sealing sleeve is accommodated, solves the problem of unifying these glands for a wider range of cables.

Upchávkové vývodky podra súčasného stavu techniky představovaného například normou ČSN 370 181, pozostávajú z válcového telesa s kruhovou tesniacou komórkou, do ktorej je vložená prstencová pružná tesniaca objímka zovrená přítlačným telesom. Nevýhodou takejto upchávkovej vývodky je, že nie je vhodná pre vodiče iného ako kruhového prierezu, nemožno ňou vyviesť viacero paralelných káblov a vyžaduje si zvýšenú pracnost’ pri montáži.The gland glands according to the state of the art, for example represented by the standard ČSN 370 181, consist of a cylindrical body with a circular sealing chamber, into which is inserted an annular flexible sealing sleeve clamped by a pressure body. The disadvantage of such a gland bushing is that it is not suitable for conductors other than circular cross-section, cannot be routed through multiple parallel cables and requires increased mounting effort.

Tieto nevýhody v značnej miere odstraňuje upchávková vývodka podra vynálezu, ktorej podstata spočívá v tom, že teleso vývodky je opatřené tesniacou komórkou obdížnikového prierezu, v ktorej je zapuštěná aspoň jedna tesniaca objímka s obdížnikovým vonkajším obrysom, opatřená aspoň jedným tvarovým otvorom pre vodič a zboku zovretá aspoň jedným přítlačným telesom. Přitom přítlačné teleso je plochý kliň, opretý o šikmú plochu steny tesniacej komórky. Toto přítlačné teleso je opatřené aspoň jednou opomou ploškou pre aspoň jednu dotláčaciu skrutku, zapustenú do závitového lóžka, vytvořeného v stene tesniacej komórky. Tesniaca komórka móže byť svojim vstupným otvorom orientovaná do pravého uhla voči přechodovému hrdlu. Na přechodové hrdlo upchávkovej vývodky je nasunutý tesniaci krúžok, ako aj přítlačná příruba, ktorá je přitlačená k tesniacemu krúžku pomocou pružného elementu. Tesniaca objímka je svojim vonkajším tvarom rovnaká pre ohybné vodiče o róznych prierezoch a móže byť pre určité případy jej použitia aspoň čiastočne delená a opatřená na jej styčných plochách sústavou aretačných výstupkov.These drawbacks are largely eliminated by the gland according to the invention, characterized in that the gland body is provided with a rectangular cross-sectional sealing chamber in which at least one sealing sleeve with a rectangular outer contour is embedded, provided with at least one shaped opening for the conductor and the side. with at least one pressure body. In this case, the pressing body is a flat wedge supported on the inclined surface of the sealing chamber wall. The thrust body is provided with at least one thrust pad for at least one thrust screw embedded in a threaded socket formed in the wall of the sealing chamber. The sealing chamber can be oriented through its inlet at a right angle to the transition throat. A sealing ring as well as a thrust flange are pushed onto the gland of the stuffing box, which is pressed against the sealing ring by a spring element. The sealing sleeve is identical in its external shape to flexible conductors of different cross-sections and can, for certain applications, be at least partially divided and provided with a plurality of locking projections on its contact surfaces.

Výhodou upchávkovej vývodky podlá vynálezu je, že umožňuje rozšírenie jej použitelnosti najma na vodiče s plochým prierezom, ako aj na paralelné usporiadané samostatné vodiče kruhového prierezu. Okrem toho umožňuje zjednodušenie montáže, najma v tom případe, keď jej tesniace objímky sú v ich středových rovinách aspoň na jednej straně delené. Vtedy sa tesniace objímky nemusia nasunúť na vodiče pozdížne, ale zboku, pričom přítlačné teleso sa na vodič vóbec nenavlieka, ale len přikládá. Montáž si nevyžaduje speciálně náradie, pričom ku zrýchleniu montáže prispieva najma tá skutočnosť, že jedna vývodka slúži pre viacero vodičov. Vývodky možno usporiadať tesne vedla seba, čím sa zmenší potřebný inštalačný priestor.The advantage of the gland bushing according to the invention is that it allows to extend its applicability in particular to flat cross-sectional conductors as well as to parallel arranged separate circular cross-section conductors. In addition, it allows simplification of assembly, especially in the case where its sealing sleeves are divided in at least one side in their central planes. In this case, the sealing sleeves do not have to be slid on the conductors laterally, but from the side, whereby the pressure body is not applied to the conductor at all, but merely applied. Installation does not require special tools, and the fact that one cable gland is used for multiple wires contributes to the speed of the assembly. The glands can be arranged close to each other, reducing the installation space required.

Upchávkdvá vývodka podTa vynálezu poskytuje aj výhodnú orientáciu vyvedenémuvodiču tak z hladiska mechanickej ochrany proti vytiahnutiu, ako aj z hladiska ochrany proti vniknutiu vody.The gland according to the invention also provides a convenient orientation of the lead-in conductor both in terms of mechanical pull-out protection and in terms of water intrusion protection.

Příklad vyhotovenia upchávkovej vývodky pódia vynálezu je znázorněný na přiložených výkresoch, na ktorých obr. 1 představuje bokorysný rez takouto vývodkou, obr. 2 čelný pohlad na ňu a obr. 3 axonometrický pohlad na zostavu dvoch čiastočne dělených, pri sebe usporiadaných tesniacich objímok.An exemplary embodiment of a gland bushing according to the invention is shown in the accompanying drawings, in which: FIG. 1 is a cross-sectional side view of such a bushing; FIG. 2 shows a front view of it and FIG. 3 is an axonometric view of an assembly of two partially divided, mutually arranged sealing sleeves.

Upchávková vývodka pozostáva z telesa 1, opatřeného tesniacou komórkou 2 obdížnikového prierezu, v ktorej sú zapuštěné dve vedía seba usporiadané tesniace objímky 3 s obdížnikovým vonkajším obrysom, z ktorých každá je opatřená jedným plochým tvarovým otvorom 4 pře elektrický ohybný vodič 5 plochého tvaru. Tesniace objímky 3 sú zboku zovreté přítlačným telesom 6, ktorým je plochý klín, opretý o šikmú plochu 7 steny 8 tesniacej komórky 2. Přítlačné teleso 6 je opatřené hladkým polkruhovým lóžkom 9, ukončeným opěrnou ploškou 10 pre dotláčaciu skrutku 11, zapustenú do závitového lóžka 12, vytvořeného v stene 8 tesniacej komórky 2 oproti hladkému polkruhovému lóžku 9, pričom toto hladké polkru-The gland comprises a body 1 provided with a sealing chamber 2 of a rectangular cross-section in which two side-by-side sealing sleeves 3 with a rectangular outer contour are embedded, each of which is provided with one flat shaped opening 4 over the electric flexible conductor 5 of flat shape. The sealing sleeves 3 are clamped from the side by a pressing body 6, which is a flat wedge, resting on the inclined surface 7 of the wall 8 of the sealing chamber 2. The pressing body 6 is provided with a smooth semicircular bearing 9 terminated with a support surface 10 for a thrust screw 11 embedded in a screw formed in the wall 8 of the sealing chamber 2 opposite the smooth semicircular bed 9, the smooth semicircular

Claims

A gland bushing for flexible conductors, in particular electric flexible conductors of a flat shape, comprising a body in which at least one sealing sleeve is mounted, characterized in that the body (1) is provided with a sealing chamber (2) of a rectangular cross-section, of which at least one unilateral sleeve (3) with a rectangular outer surface is embedded, provided with at least one shape opening (4) of a flexible conductor (5) and at least one pressure body (6) closed at the side.

2. A gland according to claim 1, characterized in that the pressing body (6) is a flat wedge, abutting the inclined surface (7) of the wall (8) of the sealing chamber (2).

2 207205 The gland according to the invention also provides a preferred orientation of the conductor and the mechanical pull-out head, as well as protection against water ingress. An exemplary embodiment of a gland bushing of the invention is illustrated in the accompanying drawings, in which: Figure 1 is a side elevational view of the gland; Figure 2 is a front view of the gland; and Figure 3 is an axonometric view of an assembly of two partially divided ones. a seal. The gland bushing consists of a body 1 provided with a sealing chamber 2 of a rectangular cross-section, in which two led-shaped sealing sleeves 3 with recessed outer contours are embedded, each of which is provided with one flat shaped opening 4 over a flat flexible conductor 5. The sealing sleeves 3 are clamped sideways by a pressing body 6, which is a flat wedge, supported on an inclined surface 7 of the sealing chamber wall 2. The pressing body 6 is provided with a smooth semicircular bed 9 terminated by a support face 10 for the pressing screw 11, recessed into the threaded bed 12 formed the wall 8 of the sealing chamber 2 relative to the smooth tufted bed 9, wherein the smooth hem- object

3. A gland bushing according to claim 1, characterized in that the pressing body (6) is a flat wedge provided with at least one blanket (10) for at least one pressing screw (11) embedded in the threaded bed (12), forming in the wall (8) of the sealing chamber (2). The bed 9 is shorter than the threaded bed 12. The sealing chamber 2 with its inlet opening 13 is oriented at right angles to the transition sleeve 14 of the packing bushing. A sealing ring 15 with a pressure flange 16 held by a spring element 17 fastened by means of a screw 18 to the outlet body is pushed onto this transition neck 14, whereby the transition opening 19 through the wall 20 of the switchgear is sealed. The two sealing sleeves 3 are partially in their center plane 21; divided so that they can be slid sideways onto the flexible conductor

4. A gland according to claim 1, characterized in that the sealing chamber (2) is oriented with its inlet opening (13) towards the right side of the transition neck (14).

5. A gland according to claim 1, characterized in that a sealing ring (15) and a pressure flange (16) pressed against the sealing ring (15) by a spring element (17) are pushed onto the gland (14) of the gland.

In addition, latching projections 20 and depressions 23 are provided at their contact surfaces and their position is stabilized. Function: The sealing sleeve seals the distribution box center against the outside, wherein the sealing sleeves 3, together with the pressure housing 6, seal the inner space of the packing gland and the seal ring 15 together with the pressure flange 16 of the outer surface of the gland outlet. The tightening screw of the sealing sleeve 3 is regulated by the pressing screw 11 and the symmetrical pressure of the single screw 18 is transmitted to the pressure flange 16 by the elastic element 17, which also has a preference for mounting. THE INVENTION

6. A gland according to claim 1, characterized in that the sealing sleeve (3) is the same for its outer shape for flexible conductors (5) of different cross-sections.

7. A gland gland according to claim 1.6, wherein the gasket sleeve (3) is at least partially divided.

A gland bushing according to item 1.6, characterized in that the sealing sleeve (3) is provided on its contact surfaces with a set of locking projections 22 and a groove (23). 3 drawings 207205 List of reference numbers - body - sealing chamber - sealing sleeve - shape hole - flexible conductor - pressure body - inclined surface (walls 8) - wall (sealing chamber 2) - semicircular box - neglecting face - pressing screw - threaded bed - inlet opening - transition socket - sealing ring - pressure flange - elastic element - screw - transition hole (through wall 20) - wall (switchboard) - central plane - locking projections - recesses