CN2129968Y

CN2129968Y - Lamp pull cord without cord break

Info

Publication number: CN2129968Y
Application number: CN 92217266
Authority: CN
Inventors: 张晓航
Original assignee: Individual
Current assignee: Individual
Priority date: 1992-07-01
Filing date: 1992-07-01
Publication date: 1993-04-14
Anticipated expiration: 2002-07-01

Abstract

The utility model discloses a lamp pull cord without cord break, comprising a cabinet, a spring, a wafer and a wire connection digging arm. One end of the digging arm connected with the pull wire of the existing pull switch is twisted by a 90 DEG, so that the working point of the pull wire is round the wire knob and the digging arm small hole and the pulling force is distributed uniformly in the process of pulling wire, thereby, avoiding the pull wire from stubbing cutting off by the digging arm.

Description

Lamp pull cord without cord break

The utility model relates to a kind of electric light pulling switch of improved electric light pulling switch, particularly a kind of difficult broken string.

The electric light pulling switch of using in people's daily life at present mainly is made up of a lever arm that links to each other with spring, nylon backguy and contact.In use, drive lever arm by backguy and contact is touched mutually or separate, finish the task of being switched on or switched off circuit.One aperture is arranged on the lever arm, and the nylon backguy is passed from the hole, stamps a knot for one, thereby drives lever arm.In switching process, nylon backguy and lever arm move in same plane.Because lever arm is to be made by very thin copper sheet, the just in time online corner angle contact position with the lever arm aperture of the impetus of backguy.Whenever draw once, backguy just on corner angle mill once, thereby solid again nylon rope also easily cuts off by neat root, brings certain trouble to daily life.

Task of the present utility model is the electric light pulling switch that a kind of difficult broken string will be provided.

The utility model is realized as follows: the end that the lever arm in the electric light pulling switch is linked to each other with backguy is turned round and is turn 90 degrees, and the other end maintains the original state, be about to lever arm and make the fried dough twist type, make the plane of its end that links to each other with backguy vertical, like this with backguy, during drag switch, the line pimple just in time vertically is pressed in around the eyelet, has born main pulling force, and original " corner angle contact " become " face contact ", disperseed pulling force greatly, thereby avoided backguy to be cut off by the neat root of corner angle.

Elaborate below in conjunction with accompanying drawing:

Fig. 1 is without improved lever arm structural representation;

Fig. 2 lever arm structural representation of the present utility model;

With reference to Fig. 2, the end (1) that lever arm is linked to each other with backguy is turned round and is turn 90 degrees, make its plane perpendicular to backguy, line pimple (2) is pressed on the aperture (3), pulling backguy (4) like this, online pimple of backguy impetus and disc contact position have avoided backguy to be cut off by the neat root of aperture (3) corner angle like this.

The utility model has solved the easily broken problem of backguy, and technology is simple, suitable for mass production.

Claims

A kind of electric light pulling switch of being made up of plastic casing, spring, contact and backguy lever arm is characterized in that turning round at the end that its lever arm links to each other with backguy and turn 90 degrees, and makes the plane after reversing vertical with backguy.