KR200231902Y1 - switching apparatus - Google Patents

Abstract

The light emitting device switch and the alarm device switch are respectively provided on the support plate at regular intervals, and a switch drive shaft having a first diameter is installed so that the front and rear sides are supported by the support plates between the two switches. A connecting portion having a second diameter smaller than one diameter and first and second tapered portions adjacent to both front and rear sides of the connecting portion are formed, and a spring receiving portion is formed at the rear to accommodate the elastic spring, so as to correspond to the displacement of the switch drive shaft. Switch and alarm switch are controlled on and off at the same time.

Description

Switching apparatus

The present invention relates to a switching device, and more particularly, to a switching device capable of simultaneously controlling on / off a light emitting device and an alarm device interlocked with an opening / closing door in a housing accommodating electronic devices such as communication equipment according to a working state. It is about.

In general, electronic devices such as communication devices are intensively managed in one place for management efficiency and security problems, and for this purpose, an opening and closing door with a locking device is installed by being accommodated in a separate housing or rack.

In this regard, a light emitting device such as a fluorescent lamp is installed to manage electronic devices stored in the housing.

However, in the past, since these switches were separately installed and were not operated in connection with the opening / closing operation of the opening / closing door, the fluorescent lamp should be turned on by using a separate switch before opening the opening / closing door for management. There was a hassle to do.

Furthermore, when the alarm device switch for warning the unauthorized opening and closing of the opening / closing door is installed to operate in connection with the opening / closing operation of the opening / closing door, it is performed because the opening / closing door is opened to perform an operation such as testing of an electronic device. There is a problem that it is difficult to turn off the device switch because the switch itself is configured to operate in relation to the open / close door.

In addition, there is a problem in that the light emitting device switch and the alarm device switch are separately configured to be inefficient in operation.

Accordingly, an object of the present invention is to provide a switching device capable of simultaneously turning on / off a light emitting device and an alarm device in relation to an opening / closing door.

Another object of the present invention is to provide a switching device that can easily turn off the alarm device when opening and closing the door to work.

Technical features and other objects of the present invention will become more apparent through the preferred embodiments of the present invention described below.

1 is a perspective view showing a switching device according to an embodiment of the present invention,

2 is an explanatory diagram for explaining the position of the switch drive shaft in the first state in which the open / close door is closed;

3 is an explanatory diagram for explaining a position of a switch drive shaft in a second state in which an open / close door is opened;

4 is an explanatory view for explaining the position of the switch drive shaft in the third state in which the switch drive shaft has moved forward after the open / close door is opened,

5 is a perspective view showing a switching device according to another embodiment of the present invention.

<Description of the symbols for the main parts of the drawings>

1: support plate 2: light emitting device switch

2 ': alarm switch 3: switch drive shaft

4: spring 5: E-ring

6 contact bar 7 gap adjusting nut

According to the present invention, the light emitting device switch and the alarm device switch are installed on the support plate spaced apart at regular intervals, and the switch drive shaft having the first diameter is installed so that the front and rear sides are supported by the support plate between the two switches, and the switch drive shaft The predetermined portion of the connection portion is formed with a connecting portion having a second diameter smaller than the first diameter and the first and second tapered portions adjacent to both front and rear sides of the connecting portion, the spring receiving portion for receiving the elastic spring at the rear is formed, the displacement of the switch drive shaft In response to this, the light emitting device switch and the alarm device switch are simultaneously controlled on and off.

In one embodiment, the displacement of the switch drive shaft is generated in accordance with the operation of the opening and closing door, the B contact is normally closed circuit inside the switches, the push button of the switch in the first state in which the opening and closing door is closed via the first taper In the third state, which is pressed by the first diameter portion of the drive shaft, the push button and the connecting portion of the switch face in a non-contact manner in the second state in which the open / close door is opened, and after the open / close door is opened, the switch drive shaft is moved a predetermined distance forward. The push button of the switch is pressed by the first diameter portion of the switch drive shaft via the second tapered portion.

Preferably, a screw groove is formed at the front end of the switch drive shaft, and a contact bar contacting the opening / closing door is screwed to the screw groove via at least one gap adjusting nut.

In addition, the support plates are bent to correspond to the front and rear of the switch drive shaft to form first and second guide parts, and the first and second guide parts are formed with guide holes into which the switch drive shaft is inserted and slide. The diameter of the guide hole formed in the rear is formed smaller than the diameter of the spring to support the spring.

Also, an E-ring is fitted at the rear end of the switch drive shaft, and preferably, the switch may include a micro switch.

Hereinafter, with reference to the accompanying drawings will be described a preferred embodiment of the present invention.

1 is a perspective view showing a switching device according to an embodiment of the present invention.

As shown in the drawing, the support plate 1 is provided adjacent to an opening / closing door of a rack that accommodates electronic devices such as communication devices by screwing or welding. Support plate

At the front end of (1), the first support 1a is bent and integrally formed, and at the rear end, the second support 1b is bent and integrally formed, and the first and second supports 1a and 1b are respectively guided. Balls 13 and 14 are formed. As described later, the switch drive shaft 3 is inserted into the guide holes 13 and 14 to be slidably guided.

The support plate 1 is provided with a light emitting device switch 2 and an alarm device switch 2 'spaced apart at regular intervals. A micro switch may be used as the light emitting device switch 2 and the alarm device switch 2 ', and may be used in various standards. Although a hinge roller type micro switch is used in FIG. 1, a push button type micro switch may be used as shown in FIG. 5, and a plunger type micro switch may be used.

Preferably, a closed contact point B is normally formed inside the switches 2 and 2 'so that the light emitting device and the alarm device are driven in a state where the hinge roller 12 does not press the push button 2a.

As described above, the switch drive shaft 3 is a guide hole of the support plate 1.

It is fitted to (13, 14) to support the front and rear and has a first diameter. E-ring (5) is fitted at the rear end, spring receiving portion (18) is formed at the rear, spring (4) is fitted, and diameter of spring (4) is received at spring receiving portion (18) and is separated from the front. Second support part

It is enough to be supported by (1b).

According to the present invention, the connection part 11 of the 2nd diameter smaller than a 1st diameter is formed in the predetermined part of the switch drive shaft 3, and the 1st taper part 10 and the 2nd taper part 9 are provided in the front and rear both sides. Is formed. The diameter of the connection part 11 is enough that it is not pressed when the pushbutton 2a opposes the connection part 11.

A screw groove 3a is formed at the front end of the switch drive shaft 3, and the bolt 6a of the contact bar 6 is coupled to the screw groove 3a, and at least one gap adjusting nut 7 is disposed therebetween. It is located above. Since the contact bar 6 is in direct contact with the opening / closing door, an elastic body 6b is attached to the front end to mitigate contact shock.

The operation of the switching device of the present invention having such a structure will be described.

FIG. 2 is an explanatory view for explaining the position of the switch drive shaft in the first state in which the open / close door is closed; FIG. 3 is an explanatory view for explaining the position of the switch drive shaft in the second state in the open / close door; FIG. It is explanatory drawing explaining the position of a switch drive shaft in the 3rd state which moved the switch drive shaft forward after a door was opened.

Referring to FIG. 2, one line of power is connected to the common contact terminal of the light emitting device switch 2 and is output through the B contact terminal. In addition, one line of signal is an alarm switch

It is connected to the common contact terminal of (2 ') and output through the B contact terminal.

When the open / close door is closed, the open / close door presses the contact bar 6 so that the switch drive shaft 3 is displaced to the right. As the switch drive shaft 3 is displaced, the hinge rollers 12 of the switches 2 and 2 'come into contact with the first tapered portion 10, whereby the hinge rollers 12 press the push button 2a. do. This action occurs equally for both switches.

When the push button 2a is pressed, the wiring inside the switches 2 and 2 'is switched from the B contact to the A contact to form an open circuit, and the power line and the signal line are cut off so that the light emitting device

20 is turned off, and the alarm device 30 is turned off.

On the other hand, the spring 4 is the switch drive shaft 3 is pressed in accordance with the displacement, the second support portion

It is supported by 1b and compressed.

When opening and closing the door in this state, as shown in Figure 3, the drive shaft switch 3 is displaced to the left by the elastic force of the spring (4), accordingly the hinge roller 12 pressing the push button (2a) ) Is released by opposing the connecting portion 11 via the first tapered portion 10. Therefore, the wirings inside the switches 2 and 2 'are switched from contact A to contact B to form a closed circuit, and the power line and signal line are connected to the light emitting device.

(20) lights up, and the alarm device 30 operates to generate an alarm sound.

Then, to turn off the alarm for work, as shown in FIG. 4, when the operator pulls the contact bar 6 forward, the switch drive shaft 3 moves forward, and thus the hinge roller 12. ) Touches the second tapered portion 9 from the connecting portion 11 and presses the push button 2a again. Therefore, the wirings inside the switches 2 and 2 'are switched from the B contact to the A contact to form an open circuit. The power supply line and the signal line are cut off so that the light emitting device 20 is turned off, and the alarm device 30 is Is off. In this state, when the worker completes the predetermined work and closes the opening / closing door, the above operation is reversed.

On the other hand, in order to appropriately adjust the distance by which the switch drive shaft 3 is displaced by opening and closing the opening and closing door, a space adjusting screw 7 can be used. That is, when the displacement distance is large, a part of the gap adjusting nut 7 may be taken out, and when the displacement distance is small, the gap adjusting nut 7 may be added.

What has been described above is for the preferred embodiment of the present invention, various modifications and changes can be made by those skilled in the art, which is naturally within the scope of the present invention without departing from the spirit of the present invention Do.

As described above, the present invention has various advantages.

First, there is an advantage that the light emitting device and the alarm device can be turned on and off at the same time while operating in relation to the opening / closing door. Therefore, the fluorescent lamp should be turned on by using a separate switch before opening and closing the door as in the prior art, and after the work is completed, there is no need to turn off the lamp again.

In addition, since the light emitting device and the switching device can be turned on and off with one switch, the manufacturing cost is low.

In addition, when opening and closing the door to work such as testing or replacement of the electronic device, there is an advantage that can easily turn off the alarm device. In other words, it is convenient to use because the alarm device is cut off simply by pulling the switch drive shaft.

Claims (7)

Support plate; A micro-switch light emitting device switch and an alarm device switch, which are installed at predetermined intervals on the support plate; A first portion having a first diameter and installed between the switches so that the front and rear sides thereof are supported by the support plate, and having a second diameter smaller than the first diameter in a predetermined portion, and a first portion adjacent to both front and rear sides of the connecting portion; A second taper portion and a switch drive shaft having a spring receiving portion for receiving an elastic spring at the rear thereof, And the light emitting device switch and the alarm device switch are simultaneously turned on and off in response to the displacement of the switch drive shaft generated by the operation of the open / close door. The switching device as claimed in claim 1, wherein a B contact normally closed circuit is formed inside the switches. The push button of the switch in the first state in which the opening / closing door is closed is pressed by the first diameter portion of the switch drive shaft via the first taper, and in the second state in which the opening / closing door is opened. In a third state in which the push button of the switch and the connecting portion face each other in a non-contact manner, and the switch driving shaft is moved forward by a predetermined distance after the opening / closing door is opened, the push button of the switch passes through the second tapered portion of the switch driving shaft. Switching device, characterized in that pressed by the first diameter portion. The switching device according to claim 2, wherein a screw groove is formed at a front end of the switch drive shaft, and a contact bar contacting the opening / closing door is screwed to the screw groove through at least one gap adjusting nut. The guide of claim 1, wherein the support plate is bent to form first and second guide parts corresponding to the front and rear of the switch drive shaft, and the switch drive shaft is inserted and slides in the first and second guide parts. Switching device, characterized in that each ball is formed. 6. The switching device according to claim 5, wherein the diameter of the guide hole formed at the rear side is smaller than the diameter of the spring to support the spring. The switching device according to claim 1, wherein an E-ring is fitted to a rear end of the switch drive shaft.