KR930008355Y1 - Optical connector - Google Patents

Abstract

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Description

Plug for optical connector

1 is a cross-sectional view showing the structure of a plug for an optical connector according to the present invention.

2a, b is a plan view and a bottom view of the present invention.

3 is a coupling state of the plug for an optical connector according to the present invention.

* Explanation of symbols for main parts of the drawings

1 optical fiber 2 lead rod

3: protrusion 4: coupling terminal part

4a: stopping ring 5: engaging cutout

6: insert guide groove 7: step

8: outer body 10: plug

11: display portion 12: projection

20: adapter 21: protrusion

22: cutout

The present invention relates to an optical connector used when connecting an optical cable, and more particularly, an optical connector plug which improves the structure of a plug in an optical connector composed of a plug and an adapter, so that a plug and adapter can be easily connected. It is about.

The conventional optical connector plug is composed of a coupling terminal portion having a protrusion formed at one end of the end portion while a lead rod having an optical fiber embedded therein in the longitudinal direction and a cylindrical outer body to be installed inside the coupling terminal portion. The outer body has an insertion guide groove to be inserted into the coupling protrusion of the adapter to be described later on both sides of the bottom surface, the outer side of the outer body was formed to be inclined to the coupling cutout leading to the insertion guide groove.

Then, the inner periphery of the predetermined position to form the stepped to the coupling terminal portion is installed, the upper side of the step to stop the stop ring fitted to the coupling terminal portion, the lower end of the stepped compression spring is supported elastically supported by the coupling terminal portion It was made.

When connecting the conventional optical connector plug and the adapter formed as described above, the protrusions protruded at the lower end of the coupling terminal portion of the plug are inserted into the cylindrical adapter in the longitudinal direction, protruding on both sides of the adapter The adapter is inserted into the outer body of the plug such that the protrusion is inserted into the insertion guide grooves on both sides of the bottom of the outer body of the plug.

Thus, as the adapter is inserted into the outer body of the plug, the protrusions protruding on both sides of the adapter are guided to the coupling cutouts leading to the insertion guide grooves of the external body, and the external body of the plug is inclined in the coupling cutout portion. When it is rotated to, the protrusions on both sides of the adapter is inserted into the coupling cutout of the plug and the coupling between the plug and the adapter is completed.

However, this means that both insertion guide grooves formed on the bottom of the outer body of the plug are not easily seen from the outside, and the cutout of the adapter and the protrusion when the adapter and the plug are connected by changing the position of the protrusion of the end of the coupling terminal according to the position change of the coupling terminal portion. It is difficult to match the shape of the adapter, and it is difficult to match the protrusion of the adapter and the insertion guide groove. .

Therefore, the present invention is conceived in view of the same problems as in the prior art, an object of the present invention is to provide a plug for an optical connector that the connection is quick and convenient when the plug and the adapter is connected.

The present invention for achieving the above object, the coupling terminal portion rotation prevention means provided with a projection so that the position of the coupling terminal portion located inside the plug before the plug is coupled with the adapter, and at the same time connecting the plug and the adapter The projection of the adapter is provided with a display for indicating the position of the insertion guide groove to be inserted.

Hereinafter, this will be described in more detail with reference to the accompanying drawings.

As shown in FIGS. 1A and 2A and 2B, both ends of the coupling terminal part 4 having the protrusions 3 formed thereon are coupled to the lead rods 2 having the optical fiber 1 embedded therein in the longitudinal direction. Externally formed insertion guide groove 6 for inserting the projection 21 of the adapter 20 into the coupling cutout portion 5 of the inclined coupling cutout portion 5 and the tip insertion start portion thereof in a downward direction. In the plug of a conventional optical connector elastically installed on the inner step (7) of the body (8), the lower ends of both coupling cutouts (5) of the outer body (8), that is, the projection (21) of the adapter 20 is inserted When the display unit 11 is formed on the outer side of the insertion guide groove 6 to be coupled to the adapter 20 and the outer body 10, the insertion position of the protrusion 21 of the adapter 20 is indicated.

And, in the step (7) of the outer body 10 to form a projection (12) to hold the right position in the state that the stop ring (4a) caught on the step (7) is not rotated, the projection 12 The positions were formed on both sides of the display portion 11 on the vertical line, so as to coincide with the vertical forming positions of the projections 21 on both sides of the adapter 20 and the cutouts 22.

In addition, the display unit 11 displayed at the lower end of the outer body 8 may paint the display unit 11, form protrusions or grooves, or cut the coupling cutout portion 5 downward to allow the display unit 11 to be cut off from the outer body 8. It can be easily identified from the outside.

When the coupling terminal 4 is installed inside the outer body 8 of the plug 10 of the present invention configured as described above, the protrusions 12 formed on the step 7 as shown in FIG. The stop ring (4a) is caught by the state that the coupling terminal portion 4 is not rotated, the bottom projection 3 of the coupling terminal portion (4) and the projection portion 21 of the adapter to be inserted guide as shown in the bottom view 2b. The orientation of the insertion guide groove (6) is to be maintained in a vertical state.

In this state, the adapter 22 and the plug 10 having the vertical direction of the cutouts 22 and the protrusions 21 are coupled to each other, and when the two are connected to each other, the protrusions 21 of the adapter 20 are coupled to each other. When the plug 10 is pushed toward the adapter 20 while matching the positions of the display portion 11 and the protrusion 21 displayed on the outer back surface of the insertion guide groove 6 to be inserted into the insertion guide groove 6, First, the projection of the coupling terminal portion 4 is inserted into the notch 22, and at the same time, both sides of the adapter 20 are fitted into both insertion guide grooves 3 of the plug 10, and the insertion force continuously inserted. As a result, both side protrusions 21 of the adapter 20 are coupled to the plug 10 and the adapter 20 along the inclined coupling cutout portion 5 as a third degree.

The present invention as described above, before the adapter is coupled, the plug, the insertion guide groove and the coupling terminal portion of the coupling terminal portion to maintain the vertical state in the same direction as the projections and cutouts on both sides of the adapter to be inserted therein The anti-rotation means is formed, and the adapter and the plug are provided with a display unit for indicating a coupling position when the coupling, it is a very practical design made very quickly and easily when the plug and adapter connection work.

Claims (2)

A coupling terminal portion 4 having a lead rod 2 having an optical fiber 1 embedded therein and a protrusion 3 formed at the distal end thereof has a coupling cutout portion 5 and an insertion start portion of the coupling cutout portion at both sides. Adapter formed with the plug 10 elastically installed on the inner step 7 of the outer body 8 having the insertion guide groove 6 formed therein, and the two side projections 21 and the cutout portion 22 in a position perpendicular to each other. In the coupling 20, the lower part of the coupling cutout portion 5 of the plug 10, the display portion for instructing the insertion of both side projections 21 of the adapter 20 toward the insertion guide groove (6) ( 11) and the stop ring 4a fitted to the coupling terminal portion 4 at the vertical position of the display portion 11 so that the coupling terminal portion 4 is rotatably formed with a projection 12 on the stepped portion 7. Plug for optical connector, characterized in that. The display unit 11 is a plug for the optical connector, characterized in that the incision to be connected to the cutout portion 5, or to display or paint projections or display grooves to facilitate identification of the display.