SU843006A1

SU843006A1 - Change-over switch

Info

Publication number: SU843006A1
Application number: SU792830368A
Authority: SU
Inventors: Аркадий Иванович Кунгуров; Валерий Васильевич Вострецов
Original assignee: Предприятие П/Я Р-6679
Priority date: 1979-08-30
Filing date: 1979-08-30
Publication date: 1981-06-30

Description

(54) ПЕРЕКЛЮЧАТЕЛЬ(54) SWITCH

1one

Изобретение относитс к электротехнике , а именно к низковольтнбй аппаратуре.This invention relates to electrical engineering, in particular to low-voltage equipment.

Известен переключатель, содержащ корпус, контактньй механизм,приводн механизм, включающий в себ руко тк управлени , и возвратный механизм, имеющ15й пружины и шарнирно установленные поводки, св занные с контактным механизмом LllA switch is known, comprising a housing, a contact mechanism, a drive mechanism, including a control handle, and a return mechanism, having springs and pivotally mounted drivers connected to the contact mechanism Lll

Однако в известном переключателе отсутствует регулировка свободного хода руко тки управлени , что в целом снижает надежность и срок службы переключател . However, in the known switch there is no adjustment of the free stroke of the control handle, which generally reduces the reliability and service life of the switch.

Цель изобретени - повышение надежности и увеличение срока службы,The purpose of the invention is to increase reliability and increase service life,

Указанна цель достигаетс тем, что переключатель снабжен направл ющей осью, приводной механизм снабжен вилкой с резьбовой частью, а руко тка управлени выполнена с резьбовым отверстием, в которое введена резьбова часть вилки, упом нута вилка установлена так, что охватывает направл ющую ось и имеет возможность перемещени относительно нее и взаимодействи с поводками , причем пружины возвратного механизма размещены на упом нутой направл ющей оси, а поводки упираютс в них.This goal is achieved by the fact that the switch is provided with a guide axis, the drive mechanism is equipped with a plug with a threaded part, and the control handle is made with a threaded hole into which the threaded part of the plug is inserted, the plug is installed so that it covers the guide axis movements relative to it and interaction with the drivers, the springs of the return mechanism being placed on said guide axis, and the drivers rest against them.

На фиг.1 показан переключатель в положении Включено, на фиг.2 то же, в положении Выключено ; на фиг.З - возможное подожениевилки .Figure 1 shows the switch in the On position, the same in Figure 2, in the Off position; on fig.Z - possible prior to the installation.

Переключатель содержит корпус I, в котором размещены возвратный механизм , контактный механизм и привод ной механизм. Приводной механизм Г включает в себ руко тку 2 управлени расположенную.в герметизированной уплотнительной зоне 3, и вилку 4.The switch comprises a housing I in which a return mechanism, a contact mechanism and a drive mechanism are housed. The drive mechanism D includes a control knob 2 located in the sealed sealing zone 3, and a fork 4.

Claims

The return mechanism consists of 1 axle 5, drivers 6 and return springs 7. The contact mechanism consists of movable contacts 8, contact springs 9 and a fixed contact 10. The housing is closed by a cover 11. When force is applied to the control handle in one of its sides the angular displacement, and the fork 4, connected with the handle, begins to move the driver 6 towards one of the movable contacts 8, compressing one of the contact springs 9. When it reaches the neutral point (crossover point relative to the moving contact), the maximum The compression of the contact spring 9 followed by instantaneous transfer of the contact contact 8. An additional stroke of the handle 2 after the operation of the contact node occurs until it stops in the cover 11 ,. The switch is disconnected due to the force exerted by the corresponding return spring 7 on the lead 6, which, in the reverse movement, moves the movable contact in the opposite direction and, like, fork 4, returns handle 2 to the neutral position. A similar switch operation occurs when the knob is moved in the opposite direction. Rotating the knob 2 counterclockwise, the fork 4 moves progressively, mounted in the knob 2 by means of a threaded part and a rotation restriction from the opposite side of its and-groove and axis 5 entering this groove. As a consequence, the shoulder L is extended, acting on the drivers 6, which close circuit A-B or AB (Fig 2). 4 The extension of the arm shoulder L increases the free-running angle 7 by the value (Fig 3). the switch allows adjustment of the free-wheeling angles of the control handle, not having tight tolerances in the parts of the drive and return mechanism, which allows to increase the service life and increase its reliability. A switch comprising a housing, a contact mechanism, a drive mechanism including a control knob, and a return mechanism having springs and pivotally mounted drivers associated with the contact mechanism, characterized in that, in order to increase reliability and extend the life it is provided with a guide axis, the drive mechanism is equipped with a fork with a threaded part, and the control knob is completed with a threaded hole into which the threaded part of the fork is inserted, the plug is installed so that It covers the guide axis and has the possibility of moving relative to it and interacting with the drivers, the springs of the return mechanism being placed on said guide axis and the drivers resting against. with in them. Sources of information taken into account in the examination 1, USSR Author's Certificate No. 189060, class, H 01 H 23/16, 1963,,

b5 6X1 ОЯ (rig. 3