SU801160A1

SU801160A1 - Device for clamping wires

Info

Publication number: SU801160A1
Application number: SU792757960A
Authority: SU
Inventors: Борис Георгиевич Полуянов; Владимир Петрович Коверга; Виктор Васильевич Добряк; Давид Аронович Ланцман
Priority date: 1979-04-26
Filing date: 1979-04-26
Publication date: 1981-01-30

Description

1one

Изобретение относитс к электротехнике/ в частности к устройствам дл зажима проводников, имеющих стержневую форму или форму резьбовых стержней.The invention relates to electrical engineering / in particular to devices for clamping conductors having a rod shape or a form of threaded rods.

Известен токоподвод щий зажим, содержащий подпружиненные верхнюю и нижнюю зажимные губки l.A current-carrying clamp is known, comprising a spring-loaded upper and lower clamping jaws l.

Такой-зажим не может быть использован дл коммутации токов в силовых цеп х, так как происходит перегрев и искрение в месте точечного контакта зажимных губок с проводником.Such a clamp cannot be used for switching currents in power circuits, since overheating and sparking occur at the point of contact of the clamping jaws with the conductor.

Наиболее близким по технической сущности к предлагаемому вл етсй устройство , содержащее изолированный корпус, -установленные в нем плоские контактные элементы, один из которых подпружинен, и йажимной элемент в виде кулачка 2 .The closest in technical essence to the present invention is a device comprising an insulated body, flat contact elements installed therein, one of which is spring-loaded, and a jaw-shaped clamping element 2.

Недостаток известного устройства заключаетс в том, что оно не обеспечивает надежного контакта со стержневыми проводниками различных сечений при коммутации токов в силовых цепдх.A disadvantage of the known device is that it does not ensure reliable contact with the rod conductors of different cross sections when switching currents in power circuits.

Цель изобретени - расширение фун циональных возможностей и повышение, надежности.The purpose of the invention is to enhance the functional capabilities and increase reliability.

Поставленна цель достигаетс тем. что устройство, содержащее корпус, установленные в -нем контактные элементы , один из которых подпружинен, и нажимной элемент, снабжен двуплечим рычагом один конец которого шарнирно соединен с подпружиненным контактным элементом, а другой соединен с нажимным элементом, при этом The goal is achieved by those. that a device comprising a housing, mounted in-it-of contact elements, one of which is spring-loaded, and a pressure element, is provided with a double-arm lever, one end of which is hinged to the spring-loaded contact element, and the other is connected to the pressure element,

0 контактные элементы выполнены желобообразной формы, установлены вогнутыми поверхност ми навстречу друг, другу и соединены между собой токопровод щей перемычкой.The contact elements are made of a groove-like shape, are installed with concave surfaces facing each other, and are connected with each other by a conductive jumper.

5five

На фиг. 1 изображено устройство дл зажима проводника, разрез; на фиг. 2 - сечение А-А на фиг. 1; на фиг. 3 - сечение Б-Б на фиг. 1; на фиг. 4 - сечение В-В на фиг. 1,FIG. 1 shows a device for clamping a conductor, a slit; in fig. 2 is a section A-A in FIG. one; in fig. 3 is a section BB in FIG. one; in fig. 4 shows a section B-B in FIG. one,

00

Устройство дл зажима проводника содержит изол ционный корпус 1, установленные в нем контактные элементы 2 и 3, двуплечий рычаг 4 и подпружиненный нажимной элемент 5 в видеThe device for clamping the conductor comprises an insulating body 1, contact elements 2 and 3 installed therein, a two-armed lever 4 and a spring-loaded pressure element 5 in the form

Claims

5 isolation button. The contact elements 2 and 3 are made of a groove shape, mounted with concave surfaces opposite each other and interconnected by a conductive bridge 6 in the form of a copper tow. One of the contact elements, in particular element 3, is pivotally connected to one end of the double arm 4. The other. the end of the lever is connected to the button 5 and rests on the spring 7. The position 8 denotes the axis of rotation of the movable contact element 3 relative to the lever 4. The device operates as follows. When pressing the button 5, JipysiHa 7 is compressed and the double-arm lever 4 rotates on the axis 8 relative to the contact element 2. At the same time, the movable contact element 3 moves from the longitudinal axis of the housing 1 to the stop against the inner surface of the housing. The device is then placed between the concave surfaces of the contact elements 2 and 3 on the clamped conductor, in particular on the threaded rod of the terminal box of the electric motor, and the button 5 is released. Under the action of the spring 7, the double-sided lever 4 is rotated to its original position and the conductor is clamped with each contact element along a generatrix. This is facilitated by the hinge connection of one of the contact elements. Copper harness b prevents hinge 9 from arcing when the current is switched. The gutter-shaped shape of the contact elements and the hinged fastening of one of them to the spring-loaded lever allows the conductors of different cross sections to be clamped securely. Invention device for clamping a conductor comprising a housing, contact elements installed therein, one of which is spring-loaded, and a pressure element characterized in that, in order to expand functionality and increase reliability, it is equipped with a double-arm lever, one end of which is hinged to spring-loaded the contact element, and the other is connected to the pressure element, while the contact elements are made of a yellow-bean shape, are installed with inwardly facing surfaces towards each other and are connected ezhdu tsZTsoprovod a conductive jumper. Sources of information taken into account in the examination 1. UK patent number 1345314, cl. H 2 E, 1974.

2. US patent number 3842394, CL.339-75, 1974.

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