CN2146776Y

CN2146776Y - Door-control switch

Info

Publication number: CN2146776Y
Application number: CN 93233331
Authority: CN
Inventors: 刘强
Original assignee: Individual
Current assignee: Individual
Priority date: 1993-02-27
Filing date: 1993-02-27
Publication date: 1993-11-17
Anticipated expiration: 2003-02-27

Abstract

The utility model belongs to the technical field of an electric switch; a selective switch arranged in a switch case is connected with a normally closed switch. One end of a controlling block is extended out from the switch case, the other end of the controlling block comes in contact with the movable contact tip of the normally closed switch, and the controlling block whose one end is extended out from the switch case is used to press the normally closed switch. The on-off action of the utility model is caused to be realized, and the requirement that a door controls the opening and the closing of an illumination lamp is realized. The utility model which can be used as the control switch of the illumination lamp in a room is provided with the simple structure and the complete functions, and the convenience can be introduced to the daily living of the people.

Description

Door-control switch

The utility model belongs to the electric switch technical control, particularly a kind of gate controlled switch.

At present; living the lighting switch that uses in places such as chamber or workshop, office people all is pulling switch or push-button switch; and switch is installed on indoor a certain position, and people also run into will feel about in the dark when entering the room night with regard to regular meeting and turn on light, and bring the inconvenience of the utmost point to people's life.

The purpose of this utility model be to provide a kind of when opening the door non-attended light bright, and turn off the light automatically behind the door, and can the people be the gate controlled switch of open and close lamp.

The utility model is realized with following mode: gate controlled switch comprises switch enclosure, selector switch K1 is housed in switch enclosure, normally closed switch K2 is housed in switch enclosure, there is an end of controll block to stretch out switch enclosure, the moving contact of its other end contact normally closed switch K2, K switch 1 is selected in normally closed switch K2 and selecting.Controll block is to be pulled to that switch enclosure resets or resetted by the moving contact shell fragment of normally closed switch by spring.Selector switch is that switch is connected in three positions two.

The utlity model has simple in structurely, function is neat, and it both can artificially control the switch of illuminating lamp, can realizing again the closes the door automatic bright lamp of turning off the light automatically and open the door, and it has brought very big convenience to daily life.

Fig. 1 is one of the utility model structure chart.

Fig. 2 is two of the utility model structure chart.

Fig. 3 is the utility model circuit diagram.

Below in conjunction with accompanying drawing the utility model is described:

Embodiment one, as shown in Figure 1, gate controlled switch is by selector switch K1 is housed in the switch enclosure 4, one end of normally closed switch K2 and controll block 3 stretches out switch enclosure 4, its other end is pressed on the moving contact shell fragment of normally closed switch K2 and constitutes, its circuit connects as shown in Figure 3, selector switch K1 adopts three positions two to connect switch, the moving contact of K switch 1 opens circuit when the centre position, when dialling to both sides, it connects two fixed contacts respectively, K switch 1 is selected in normally closed switch K2 and selecting, and two fixed contacts of K switch 1 are selected at the two ends of normally closed switch K2 selecting respectively.The moving contact of selector switch K1 connects an external terminal, and K switch 2 and the fixed contact that connects K switch 1 connect another external terminal.Connect power supply behind the gate controlled switch serial connection lamp L, as shown in Figure 3.Gate controlled switch is installed on the doorframe, when selecting K switch 1, be in automatically, when being the moving contact connection K switch 2 of K switch 1, after opening the door, because the controll block 3 of door compressing gate controlled switch is backed down the normally closed interlock of K switch 2 K switch 2 is disconnected, and at this moment K switch 1 also is in and power-off state, so lamp L does not work.After opening the door, because the controll block 3 on the K switch 2 loses roof pressure power, under the moving contact shell fragment effect of K switch 2, K switch 2 resets.Make K switch 2 closures.At this moment, power supply makes lamp L bright through K switch 2, K switch 1 turn-on lamp L.When K switch 1 mediates, because K switch 1 disconnection, no matter the on off state of K switch 2, so make lamp L not work.When 1 group of K switch to the fixed contact that connects power supply, then lamp L can be bright.

Embodiment two, as shown in Figure 2, its circuit connects as shown in Figure 3, and its principle is described the same with the foregoing description one, do not repeat to state, embodiment two different is its controll block 3 pulls to the bottom side of switch enclosure 4 by spring 5, and it is normally closed to make that normally closed switch K2 realizes, as shown in Figure 2, extruding controll block 3 is opened the normally closed contact of K switch 2, after controll block 3 lost extruding force, controll block 3 resetted under the tension of spring 5, the junction closure of K switch 2.The normally closed switch K2 of this mode has durable in use, its switch on-off action reliable.

In addition, when installing and using, at door and this gate controlled switch CONTACT WITH FRICTION place, should install a friction plate additional, this friction plate can be smooth iron plate, is not worn with shutter.

Claims

1, a kind of gate controlled switch, it comprises switch enclosure (4), it is characterized in that in switch enclosure (4), selector switch K1 being housed, in switch enclosure (4), normally closed switch K2 is housed, there is an end of controll block (3) to stretch out switch enclosure (4), the moving contact of its other end contact normally closed switch K2, K switch 1 is selected in normally closed switch K2 and selecting, connects external terminal.

2,, it is characterized in that controll block (3) is to be pulled to that switch enclosure (4) resets or resetted by the moving contact shell fragment of normally closed switch K2 by spring (5) according to the described gate controlled switch of claim 1.

3,, it is characterized in that selector switch K1 is that switch is connected in three positions two according to the described gate controlled switch of claim 1.