SK29198A3 - Terminal or jointing clamp for a coated overhead cable and moment screw used therein - Google Patents

Terminal or jointing clamp for a coated overhead cable and moment screw used therein Download PDF

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Publication number
SK29198A3
SK29198A3 SK291-98A SK29198A SK29198A3 SK 29198 A3 SK29198 A3 SK 29198A3 SK 29198 A SK29198 A SK 29198A SK 29198 A3 SK29198 A3 SK 29198A3
Authority
SK
Slovakia
Prior art keywords
terminal
torque
screw
nut
fastening screw
Prior art date
Application number
SK291-98A
Other languages
Slovak (sk)
Other versions
SK285087B6 (en
Inventor
Harri Turunen
Original Assignee
Ensto Sekko Oy A Finnish Joint
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Ensto Sekko Oy A Finnish Joint filed Critical Ensto Sekko Oy A Finnish Joint
Publication of SK29198A3 publication Critical patent/SK29198A3/en
Publication of SK285087B6 publication Critical patent/SK285087B6/en

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
    • H01R4/24—Connections using contact members penetrating or cutting insulation or cable strands
    • H01R4/2404—Connections using contact members penetrating or cutting insulation or cable strands the contact members having teeth, prongs, pins or needles penetrating the insulation
    • H01R4/2408—Connections using contact members penetrating or cutting insulation or cable strands the contact members having teeth, prongs, pins or needles penetrating the insulation actuated by clamping screws
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
    • H01R4/28—Clamped connections, spring connections
    • H01R4/38—Clamped connections, spring connections utilising a clamping member acted on by screw or nut
    • H01R4/44—Clamping areas on both sides of screw

Landscapes

  • Connections Effected By Soldering, Adhesion, Or Permanent Deformation (AREA)
  • Cable Accessories (AREA)
  • Details Of Connecting Devices For Male And Female Coupling (AREA)
  • Electric Cable Installation (AREA)
  • Manufacturing Of Electrical Connectors (AREA)
  • Connections By Means Of Piercing Elements, Nuts, Or Screws (AREA)
  • Communication Cables (AREA)

Abstract

The invention relates to a terminal or jointing clamp for a coated overhead cable and to a moment screw, the latter serving as a terminal clamping element. The moment screw includes a moment transmission nut (11), provided with a fracture point (12) and engaged with a head (7) of a clamping screw (5) through the intermediary of an insulation layer (9). Such a terminal or jointing clamp is capable of voltage work, while enabling an accurate calibration for the operation of the moment screw. <IMAGE>

Description

Oblasť technikyTechnical field

Predložený vynález sa týka koncovky alebo spojovacej svorky pre oplášťovaný nadzemný kábel, pozostávajúcej z dvoch párov ozubených čeľustí, stlačiteľných vzájomne proti sebe, upevňovacej skrutky na pritláčanie čeľustí proti sebe a moment prenášajúcej matice vybavenej frakčným bodom na otáčanie upevňovacej skrutky. Vynález sa týka tiež momentovej skrutky, slúžiacej ako upevňovací prvok v koncovke alebo spojovacej svorke pre oplášťovaný nadzemný kábel a vybavenej moment prenášajúcou maticou s frakčným bodom.The present invention relates to a terminal or connection clamp for a jacketed overhead cable comprising two pairs of toothed jaws compressible against each other, a fastening screw for pressing the jaws against each other and a torque transfer nut provided with a fractional point for rotating the fastening screw. The invention also relates to a torque bolt serving as a fastening element in a terminal or connecting clamp for a jacketed overhead cable and provided with a torque-transmitting nut with a fractional point.

Doterajší stav techniky iBACKGROUND OF THE INVENTION i

Tento typ koncovky alebo spojovacej svorky je známý napr. z patentu FR - 2601516 a patentu DE - 3824741. V prvom riešení, je ochrana alebo kryt spoja vyhotovená pomocou použitia izolačnej vrstvy na homej časti šesťhrannej hlavy upevňovacej skrutky. Problémy u tohto riešenia sú ťažkosti s dosiahnutím potrebných veľkostí momentov. Závitová časť momentovej skrutky použitej v druhom riešení je celá izolovaná od čeľusťových prvkov v kontakte s drôtmi. Konštrukcia je komplikovaná a nevýhodná.This type of terminal or connection terminal is known e.g. from FR-2601516 and DE-3824741. In a first solution, the guard or cover of the joint is made by using an insulating layer on the upper part of the hexagon head of the fastening screw. The problems with this solution are difficulties in achieving the required torque sizes. The threaded portion of the torque screw used in the second solution is entirely insulated from the jaw elements in contact with the wires. The construction is complicated and disadvantageous.

Úlohou vynálezu je vytvoriť koncovku alebo spojovaciu svorku hore uvedeného typu a momentovú skrutku pre ňu, ktorá je schopná pracovať pod napätím bez izolovania závitovej časti skrutky od čeľustí, ktoré sú pod napätím a ktorá je ďalej schopná presne dosiahnuť požadovanú veľkosť momentu.SUMMARY OF THE INVENTION It is an object of the present invention to provide a terminal or connection clamp of the above type and a torque screw therefor capable of operating under tension without insulating the threaded portion of the screw from the live jaws and further capable of accurately achieving the desired torque.

Podstata vynálezuSUMMARY OF THE INVENTION

Táto úloha je dosiahnutá pomocou koncovky alebo spojovacej svorky podľa predloženého vynálezu, ktorého podstata spočíva v tom, že upevňovacia skrutka má hlavu v styku s maticou prenášajúcou moment prostredníctvom medziľahlej izolačnej vrstvy ležiacej medzi hlavou a maticou. Podstatou vynálezu je tiež momentová skrutka, slúžiaca ako upevňovací prvok v koncovke alebo spojovacej svorke, kde matica je spojená s hlavou upevňovacej skrutky prostredníctvom medziľahlej izolačnej vrstvy. Podstatou závislých nárokov sú potom výhodné uskutočnenia vynálezu.This object is achieved by means of a terminal or connection clamp according to the present invention, which is characterized in that the fastening screw has a head in contact with the torque transmitting nut by means of an intermediate insulating layer lying between the head and the nut. The invention also relates to a torque screw serving as a fastening element in a terminal or connecting clamp, wherein the nut is connected to the head of the fastening screw by means of an intermediate insulating layer. Advantageous embodiments of the invention are then the subject of the dependent claims.

Prehľad obrázkov na výkreseOverview of the figures in the drawing

Príkladné uskutočnenia koncovky alebo spojovacej svorky sú znázornené na pripojenom výkrese, kde obr. 1 znázorňuje koncovku alebo spojovaciu svorku podľa vynálezu v reze, obr. 2 znázorňuje koncovku alebo spojovaciu svorku z obr. 1 v pôdoryse a obr. 3 znázorňuje koncovku alebo spojovaciu svorku z obr. 1 s iba jedným párom čeľustí, ktoré majú medzi sebou drôt.Exemplary embodiments of the terminal or connection terminal are shown in the accompanying drawing, wherein FIG. 1 is a cross-sectional view of a terminal or connection clamp according to the invention, FIG. 2 shows the terminal or connection clamp of FIG. 1, and FIG. 3 shows the terminal or connection clamp of FIG. 1 with only one pair of jaws having a wire between them.

Príklady uskutočnenia vynálezu iEXAMPLES i

Koncovka alebo spojovacia svorka pozostáva z dvoch párov protiľahlých čeľustí 1, 2 vybavených zubami prenikajúcimi izoláciou. Čeľuste 1 ležia v spodnej časti čeľusťového prvku, ktorý je axiálne spojený rozperným prvkom 3 s pozdĺžnym nosníkom 6 vybaveným závitovým otvorom, do ktorého je zaskrutkovaná upevňovacia skrutka 5.The terminal or connection clamp consists of two pairs of opposing jaws 1, 2 provided with teeth penetrating the insulation. The jaws 1 lie in the lower part of the jaw element, which is axially connected by a spacer element 3 to a longitudinal beam 6 provided with a threaded hole into which the fastening screw 5 is screwed.

Upevňovacia skrutka 5 má svoj horný koniec vybavený šesťhrannou hlavou 7, ktorá je uložená vo výreze, vytvorenom v izolačnom bloku 8. Inými slovami, časť izolačného bloku 8 tvorí izolačnú vrstvu 9 obklopujúcu hlavu 7. Izolačná vrstva 9 je obklopená šesťhranným kovovým puzdrom 10, ktoré na druhej strane obklopuje moment prenášajúcu maticu 11 pod jej frakčným bodom 12. Takže, krútiaca sila z matice 1_1 sa na hlavu 7 prenáša pomocou kovového puzdra 10 a izolačnej vrstvy 9. V termínoch napätia, matica 11 je izolovaná od šesťhrannej hlavy 7 skrutky 5, ktorá funguje ako upevňovacia skrutka. Avšak je možné, aby moment prenášajúca matica 11 bola vybavená kovovým výrezom 12 na presné stanovenie požadovanej veľkosti momentu.The fastening screw 5 has an upper end provided with a hexagonal head 7 which is housed in a cutout formed in the insulating block 8. In other words, part of the insulating block 8 forms an insulating layer 9 surrounding the head 7. The insulating layer 9 is surrounded by a hexagonal metal sleeve 10 on the other hand, it surrounds the torque transmitting nut 11 below its fraction point 12. Thus, the twisting force from the nut 11 is transmitted to the head 7 by the metal sleeve 10 and the insulating layer 9. At the stresses, the nut 11 is insulated from the hexagon head 7 of the screw 5. which acts as a fixing screw. However, it is possible for the torque-transmitting nut 11 to be provided with a metal cutout 12 to accurately determine the desired torque.

Uťahovaním momentovej skrutky otáčaním matice ϋ nad výrezom, závity skrutky 5 ťahajú spodné čeľuste i nahor prostredníctvom prvkov 6 a 3 . Horné čeľuste 2 sa oprú o hlavu 7 skrutky prostredníctvom rozperného prvku 4. Horný čeľusťový prvok a jeho rozperný prvok 4 sú vybavené dostatočne voľným otvorom, aby sa mohli nakloniť, ako je znázornené na obr. 3. To umožňuje spojenie drôtov s rôznou hrúbkou. Horný čeľusťový prvok 2 je pridržovaný vo svojej hornej polohe pomocou vačiek 16, zachycujúcich konce puzdra alebo krytu 13. Tieto vačky 16 nie sú vystavené podstatnému namáhaniu, ale ich funkciou je iba zabrániť tomu, aby horné čeľuste 2 spadli dole, aby sa uľahčilo ľahké zasunovanie drôtov medzi páry čeľustí i a 2. V koncoch krytu 13 sú vytvorené otvory L5 na zasunutie drôtu. Obrázok znázorňuje iba hornú časť 13 puzdra alebo krytu. Takže, izolačná vrstva 9 je vytvorená vcelku so širokým prvkom 8 v tvare viečka, ktoré uzaviera otvor vytvorený v hornej strane krytu 13 koncovky, otvor je dostatočne veľký, aby sa horná polovica krytu 13 koncovky mohla nakloniť vzhľadom k momentovej skrutke, ako je znázornené na obr. 3.By tightening the torque screw by turning the nut ϋ above the recess, the threads of the screw 5 pull the lower jaws and upwards by means of the elements 6 and 3. The upper jaws 2 are supported on the screw head 7 by means of the spacer element 4. The upper jaw element and its spacer element 4 are provided with a sufficiently free opening to be inclined as shown in FIG. 3. This makes it possible to connect wires of different thicknesses. The upper jaw element 2 is held in its upper position by the cams 16 engaging the ends of the housing or cover 13. These cams 16 are not subjected to substantial stress, but are merely intended to prevent the upper jaws 2 from falling down to facilitate easy insertion. In the ends of the cover 13, openings 15 are provided for insertion of the wire. The figure shows only the upper part 13 of the housing or cover. Thus, the insulating layer 9 is formed integrally with a wide cap-like element 8 that closes the opening formed in the upper side of the terminal housing 13, the opening being large enough to allow the upper half of the terminal housing 13 to tilt relative to the torque screw as shown. Fig. Third

Akonáhle je koncovka alebo spojovacia svorka upevnená na svojom mieste a maticová časť 11 momentovej skrutky sa vo frakčnom bode 12 zlomí, horný otvor krytu 13 sa môže uzavrieť viečkom 14. Takže, viečko 14 nemôže byť uložené na svoje miesto dokiaľ sa matica 11 nezlomí. Spoj môže byť tiež ľahko odpojený odstránením viečka 14 a odskrutkovaním matice 11 z mnohouholníkového kovového puzdra 10.Once the terminal or connection clamp is fixed in place and the torque screw nut portion 11 breaks at the fraction point 12, the top opening of the cover 13 can be closed by the cap 14. Thus, the cap 14 cannot be seated until the nut 11 breaks. The joint can also be easily detached by removing the cap 14 and unscrewing the nut 11 from the polygonal metal sleeve 10.

Claims (5)

1. Koncovka alebo spojovacia svorka pre nadzemný kábel, pozostávajúca z dvoch párov ozubených čeľustí (1, 2) stlačiteľných smerom k sebe, upevňovacej skrutky (5) na pritláčanie čeľustí vzájomne k sebe a moment prenášajúcej matice (11) vybavenej frakčným bodom (12) na otáčanie upevňovacej skrutky (5), vyznačujúca sa tým, že upevňovacia skrutka (5) má hlavu (7) v styku s moment prenášajúcou maticou (11) prostredníctvom medziľahlej izolačnej vrstvy (9) ležiacej medzi hlavou (7) a maticou (11).A terminal or connection clamp for an overhead cable, comprising two pairs of toothed jaws (1, 2) pushable together, a fastening screw (5) for pushing the jaws together and a torque transfer nut (11) provided with a fractional point (12) for rotating the fastening screw (5), characterized in that the fastening screw (5) has the head (7) in contact with the torque-transmitting nut (11) by means of an intermediate insulating layer (9) lying between the head (7) and the nut (11) . 2. Momentová skrutka slúžiaca ako upevňovací prvok v koncovke alebo spojovacej svorke pre oplášťovaný nadzemný kábel a obsahujúca moment prenášajúcu maticu (11) vybavenú frakčným bodom (12), vyznačujúca sa tým, že matica (11) je spojená s hlavou (7) upevňovacej skrutky (5) prostredníctvom medziľahlej izolačnej vrstvy (9).A torque bolt serving as a fastening element in a terminal or connecting clamp for a jacketed overhead cable and comprising a torque-transmitting nut (11) provided with a fractional point (12), characterized in that the nut (11) is connected to the fastening screw head (7) (5) by means of an intermediate insulating layer (9). II 3. Koncovka alebo spojovacia svorka podľa nároku 1, alebo momentová skrutka podľa nároku 2, vyznačujúca sa tým, že izolačná vrstva (9) obklopujúca hlavu (7) upevňovacej skrutky (5) je obklopená mnohouholníkovým kovovým puzdrom (10), ktoré obklopuje tiež moment prenášajúcu maticu (11) pod jej frakčným bodom (12).Terminal or connection clamp according to claim 1 or a torque screw according to claim 2, characterized in that the insulating layer (9) surrounding the head (7) of the fastening screw (5) is surrounded by a polygonal metal sleeve (10) which also surrounds the torque. carrying the nut (11) below its fraction point (12). 4. Koncovka alebo spojovacia svorka podľa nároku 1, vyznačujúca sa tým, že izolačná vrstva (9) je vytvorená vcelku so širším prvkom (8) v tvare viečka, ktorý uzaviera otvor vytvorený v hornej strane krytu (13) koncovky, a tento otvor umožňuje naklonenie hornej polovice krytu (13) koncovky vzhľadom k momentovej skrutke (5, 7, 9, 10, 11).The terminal or connection clamp according to claim 1, characterized in that the insulating layer (9) is integrally formed with a wider cap-like element (8) which closes the opening formed in the upper side of the terminal cover (13) and allows the opening tilting the upper half of the terminal housing (13) with respect to the torque screw (5, 7, 9, 10, 11). 5. Koncovka alebo spojovacia svorka podľa nároku 1, vyznačujúca sa tým, že závity upevňovacej skrutky (5) obsiahnutej v momentovej skrutke zaberajú s pozdĺžnym nosníkom (6) vyčnievajúcim zo spodnej strany koncovky.Terminal or connection clamp according to claim 1, characterized in that the threads of the fastening screw (5) contained in the torque screw engage a longitudinal beam (6) projecting from the underside of the terminal.
SK291-98A 1997-03-07 1998-03-04 Terminal or jointing clamp for a coated overhead cable SK285087B6 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FI970965A FI102120B1 (en) 1997-03-07 1997-03-07 The coupling piece for coated air line and torque screw used therein

Publications (2)

Publication Number Publication Date
SK29198A3 true SK29198A3 (en) 1998-10-07
SK285087B6 SK285087B6 (en) 2006-06-01

Family

ID=8548355

Family Applications (1)

Application Number Title Priority Date Filing Date
SK291-98A SK285087B6 (en) 1997-03-07 1998-03-04 Terminal or jointing clamp for a coated overhead cable

Country Status (13)

Country Link
EP (1) EP0863572A3 (en)
BG (1) BG63521B1 (en)
CZ (1) CZ285570B6 (en)
EA (1) EA000449B1 (en)
FI (1) FI102120B1 (en)
HR (1) HRP980122B1 (en)
HU (1) HU223913B1 (en)
NO (1) NO315771B1 (en)
PL (1) PL189087B1 (en)
RO (1) RO117741B1 (en)
SK (1) SK285087B6 (en)
TR (1) TR199800401A2 (en)
UA (1) UA48190C2 (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB9902358D0 (en) * 1999-02-04 1999-03-24 B & H Nottingham Ltd Electrical connector
FI107652B (en) * 1999-09-16 2001-09-14 Ensto Sekko Oy Dead-end clamp for insulated overhead cable
FI121692B (en) * 2009-07-27 2011-02-28 Ensto Finland Oy Connection piece for coated overhead lines
EP2607723A1 (en) 2011-12-19 2013-06-26 Ensto Finland Oy Torque nut
ITBO20120180A1 (en) * 2012-04-04 2013-10-05 3I En S R L JUNCTION JOINT FOR UNDERGROUND CABLES
US10074963B2 (en) 2015-09-29 2018-09-11 Classic Connectors, Inc. Tangent suspension accessory assembly and accessory bracket therefor
CN106099424B (en) * 2016-08-05 2019-05-03 阮浩新 A kind of penetrating cable clamp
RU200206U1 (en) * 2020-06-17 2020-10-13 Федеральное государственное бюджетное образовательное учреждение высшего образования "Брянский государственный университет имени академика И.Г. Петровского" QUICK DISCONNECTOR FOR ROPE CONNECTION OF MOBILE ROPE COMPLEXES OF PENDULUM TYPE

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2503807A1 (en) * 1981-04-13 1982-10-15 Verlant Et Beaurain Insulated tightening bolt for screw-fastening cable connectors - has shaft head with inserted hexagonal insulating plug preventing electrical contact with cable, and tightenable with allen key
FR2601516B2 (en) * 1984-06-15 1988-08-05 Sicame Sa INSULATED BYPASS CONNECTOR FOR ELECTRICAL CABLES
FR2607881A2 (en) * 1986-01-27 1988-06-10 Verlant Et Beaurain Screw with an insulated head particularly for electrical applications
FR2596209B1 (en) * 1986-03-20 1989-06-16 Verlant Beaurain MONOBLOCK BYPASS CONNECTOR, ESPECIALLY FOR LIVE POWER LINES

Also Published As

Publication number Publication date
EA199800193A1 (en) 1998-10-29
HUP9800489A3 (en) 2000-09-28
EP0863572A2 (en) 1998-09-09
FI102120B (en) 1998-10-15
HU9800489D0 (en) 1998-04-28
BG102296A (en) 1998-09-30
HRP980122A2 (en) 1998-10-31
NO315771B1 (en) 2003-10-20
TR199800401A3 (en) 1999-08-23
NO981004D0 (en) 1998-03-06
FI102120B1 (en) 1998-10-15
HU223913B1 (en) 2005-03-29
TR199800401A2 (en) 1999-08-23
CZ62798A3 (en) 1998-09-16
HUP9800489A2 (en) 1998-11-30
RO117741B1 (en) 2002-06-28
SK285087B6 (en) 2006-06-01
PL325126A1 (en) 1998-09-14
EA000449B1 (en) 1999-08-26
HRP980122B1 (en) 2007-10-31
BG63521B1 (en) 2002-03-29
CZ285570B6 (en) 1999-09-15
PL189087B1 (en) 2005-06-30
EP0863572A3 (en) 2000-06-21
FI970965A0 (en) 1997-03-07
UA48190C2 (en) 2002-08-15
NO981004L (en) 1998-09-08

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Effective date: 20170304