JP2547660Y2 - Optical connector - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a waterproof optical connector having a plug and a receptacle which are connected and separated from each other.

[0002]

2. Description of the Related Art Conventionally, there are a screw type and a bayonet type as a coupling method of an optical connector. It is difficult to increase the mounting density due to space and other reasons.
The opening at the tip end is not protected, so that the components related to the opening are easily damaged by the dropping of the optical connector or the like, which causes a problem such as causing poor waterproofing of the opening.

[0003] The present invention has been made in view of such conventional problems, and an object of the present invention is to provide a highly reliable optical connector which is excellent in operability of coupling and separation and also excellent in waterproofness. To provide.

[0004]

[Means for solving the problems] For this purpose, the present invention
The idea is that the plugs are separated from each other10And receptacle
100An optical connector comprising:10
On the outer peripherysphereEngagement groove16Was providedCylindricalshell
11And the shell11ofAround the perimeterSlidable in the axial directionhand
Along with being provided coaxially,Spring always29To
YoWith the receptacle 100Pressed and held on the connection side
AndAnd toward the connection side with the receptacle 100
Has an inner slope 27 with a larger inner diameterSlide sleeve
26And the slide sleeve26ofThe screw part 3 on the outer circumference
4 and its tip 31 is connected to the shell
11 slightly longer than the tip of the small diameter portion 13
Are provided coaxially and protrude in the
A connection ring 30 provided with a raised portion 32;
By screwing the screw part 36 into the screw part 34 of 30
A connection ring fixed coaxially over the spring 29
Ring 35 andThe receptacle100IsOutside
At the time of coupling with the plug 10 in the circumferential direction,
For insertion to be positioned and inserted into the projection 32 of the connection ring 30
A cylindrical shell 101 provided with a guide long groove 107;
In front of the insertion guide groove 107 in the shell 101
Sphere fitting hole 108 penetrating in the circumferential directionDo not escape
So that the shell moves back and forth in the radial direction.101Within
It is loosely fitted so that part of it protrudes to the side or outside
hand,At the time of connection with the plug 10,
The slide sleeve 26 on the plug 10 side
And press the inner slope 27 to slide the slide sleeve 26
And the inner surface of the shell 101
And at the joint with the plug 10 side shell 11.
The plug 10 and the plug 10
At the time of connection, it comes into contact with the outer peripheral surface of the plug 10 side shell 11.
O-ring 111 for maintaining waterproofness when touched
It is characterized by a configuration.

[0005]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described with reference to the drawings and the operation thereof. FIG. 1 is a vertical half sectional view showing a connection state of an example of an optical connector according to the present invention. The plug 10 includes a plug 10 and a receptacle 100, and the plug 10 is shown in FIG. 2 as a longitudinal half sectional view, and the receptacle 100 is shown in FIG. 3 as a longitudinal half sectional view.

In FIG. 2, the plug 10 has a cylindrical shell 11, which has a concentric large-diameter portion 12 and a slightly smaller-diameter portion 13 through an inner peripheral step portion.
An annular protrusion 14 and a step portion 15 are provided on the outer periphery of the step 15, and an engagement groove 16 is further provided on the outer periphery of the step portion 15 on the slightly connecting side. Reference numeral 17 denotes a portion from the large diameter portion 12 of the shell 11 to the small diameter portion 1.
3 is an insert fixed by a holding bracket 18 or the like, and 19 is abutted against the insert 17 to form a small-diameter portion 1.
3 is an adapter fixed by an adapter pin 20 in
A ferrule 21 and a split sleeve 22 are fixedly mounted in the through hole of the adapter 19, and an optical ferrule 23 is constantly pressed and held toward the connection side by a spring 24 from the split sleeve 22 to the through hole of the insert 17. It is provided. 25 is a guide pin for the optical ferrule.

A slide sleeve 26 is provided outside the shell 11 so as to be movable in the axial direction. The slide sleeve 26 has an inner slope 27 whose inner diameter increases toward the connection side and an inner peripheral step portion 28.
Spring 29 compression-equipped between the annular projection 14
Is always pressed and held on the connection side. A connection ring 30 is provided outside the slide sleeve 26, and surrounds the shell 11, in other words, a distal end 31 of the connection ring 30 extends slightly longer than the shell distal end, and has an inner circumferential shaft. A short protrusion 32 is provided in the direction, an annular protrusion 33 is provided, and a screw portion 34 is provided on the rear outer periphery. The connection ring 30 has a threaded portion 34 which is a slide sleeve 2.
6 and is fixed by screwing in the screw portion 36.

On the other hand, in FIG.
Comprises a cylindrical shell 101, the shell 101 comprising:
A slightly smaller diameter portion 1 having a large diameter portion 102 having an inner diameter that can be extrapolated to the shell 11 of the plug 10 and an inner peripheral step portion 103.
04, 105 and the screw portion 106, and the guide groove 10
7 are provided, and spherical fitting holes 108 are formed at equal angles in the circumferential direction of the front part of the large diameter portion 102. A sphere (steel ball) 10 that falls into engagement with the engagement groove 16
9 is loosely fitted so that it does not come out and advances and retreats in the radial direction so that a part thereof projects inside or outside of the large-diameter portion 102. O-ring 111 is fitted, and plug 1
Waterproofness is maintained when it is combined with zero.

In FIG. 3, reference numeral 112 designates a holding metal 113 and a screw 11 extending from the large diameter portion 102 to the small diameter portions 104 and 105.
Reference numeral 115 denotes an optical ferrule which is fixed by the spring 117 in each ferrule insertion hole 116 of the insert 112.

The operation of attaching and detaching the plug 10 and the receptacle 100 according to the above configuration will be described. First, in the case of coupling, when the receptacle 100 is pushed into the plug 10, the shell large-diameter portion 102 is pushed in the axial direction while the shell guide long groove 107 is along the projection 32 of the connection ring 30, and the sphere 109 is moved into the slide sleeve 26. When the spring 29 is pressed further, the spring 29 is compressed, the slide sleeve 26 is moved rightward in the drawing, and when the sphere 109 reaches the position where the engagement groove 16 is lowered, the sphere is repelled by the spring 29. 109 falls into the engaging groove 16 and is pressed into the shell large diameter portion 1.
The tip of 02 abuts on the step 15 of the plug shell 12.
Then, the slide sleeve 26 is moved leftward in the drawing by the returning force of the spring 29 by the amount of movement, and the tip of the slide sleeve 26 is locked by the annular projection 33, and the spherical body 109 is moved to the inner peripheral surface of the slide sleeve 26. And the connection between the plug 10 and the receptacle 100 is completely locked, and at the same time, the optical ferrules 23, 11
5 are brought into butt contact to complete the connection (see FIG. 1). In this connection state, the plug 10 or the receptacle 1
00, a sphere 1
09 falls into the engagement groove 16 and the slide sleeve 2
6, so that the connection does not come off, and the plug shell 11 and the receptacle shell 10
Reference numeral 1 denotes an O-ring 111 which is completely adhered to maintain waterproofness.
1 is slightly longer than the tip of the shell 11, and
Is completely surrounded and covered by the connection ring 30, so that even if the plug 10 is dropped, the shell 11 is not damaged, so that the connection with the receptacle shell 101 is good. And O-ring 111
A waterproof effect is obtained.

The plug 10 and the receptacle 1 from the connected state
00, the slide sleeve 26 of the plug 10 is moved rightward in FIG. 1 while compressing the spring 29 by the movement of the connection rings 30 and 35, and the spherical body 109 formed by the inner peripheral surface of the slide sleeve 26 is moved. When the pressing of the plug 10 is released and the plug 10 or the receptacle 100 is continuously pulled, the sphere 109 gets over the engaging groove 16 and comes off, and the plug 10 and the receptacle 100 are separated.

[0012]

According to the present invention, the plug 10
Positioning of Coupling and Receptacle 100 at Connection
First, the projection 32 of the connection ring 30 in the plug 10
While the shell 101 in the receptacle 100
One-touch operation by simply pushing the insertion guide groove 107
It is easily positioned and connected by the operation, and the connection state is securely held by the lock mechanism such as the slide sleeve 26, the spring 29, and the connection rings 30, 35, and the waterproofness is securely held by the O-ring 111. In addition, the connection ring 3 in the plug 10
It can be easily performed by a one-touch operation of moving the 0 and 35 in the axial direction, and is excellent in operability and waterproofness.

The connection ring 30 of the plug 10
Since the tip 31 of is formed slightly longer than the tip of the small diameter portion 13 of the shell 11, the shell diameter portion 13 is covered fully surrounded by the connecting ring 30, event, contact
Even if the plug 10 is accidentally dropped during continuous work or the like, the portion such as the shell small-diameter portion 13 which is a very important part in terms of waterproofing and fitting is not damaged,
An optical connector excellent in waterproofness, reliability, and the like can be provided.

[Brief description of the drawings]

FIG. 1 is a longitudinal half sectional view of an optical connector according to the present invention in a coupled state.

FIG. 2 is a vertical half sectional view showing a plug side.

FIG. 3 is a vertical half sectional view showing a receptacle side.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Plug 11 Shell 16 Engagement groove 26 Slide sleeve 29 Spring 30 Connection ring 100 Receptacle 101 Shell 108 Fitting hole 109 Sphere 110 Inner peripheral groove 111 O-ring

Claims (1)

(57) [Scope of request for utility model registration] 1. An optical connector having a plug 10 and a receptacle 100 which are coupled and separated from each other, wherein the plug 10 has a sphere engaging groove 16 provided on an outer periphery.
A cylindrical shell 11, along with the provided coaxially with slidable in the axial direction on the outer periphery of the shell 11, normally pressed bullet lifting the connection side with the receptacle 100 Ri by the spring 29, and the Connection with receptacle 100
A slide <br/> id sleeve 26 having an inner inclined surface 27 having an increased inner diameter towards the side, the position of the threaded portion 34 on the outer periphery of the sliding sleeve 26
And the tip 31 is small
Coaxial with a slightly longer position than the tip of the diameter part 13
And a projection 32 in the direction of the inner circumferential axis near the tip end.
And a threaded portion 36 of the connection ring 30 with the threaded portion 34 of the connection ring 30.
Coaxially fixed by covering over the spring 29
And a connecting ring 35 that is, the receptacle 100, the bra on an outer peripheral direction
When the connection ring 30 is connected to the
An insertion guide slot 107 is positioned and inserted into the portion 32.
A cylindrical shell 101 which is cut, and a front of the insertion guide groove 107 in the shell 101;
The plug 101 is loosely fitted so that it does not fall out into the sphere fitting hole 108 penetrating in the circumferential direction of the other side , and moves forward and backward in the radial direction so that a part thereof projects inside or outside the shell 101. At the time of connection with
The slide sleeve 26 on the plug 10 side
And press the inner slope 27 to slide the slide sleeve 26
Sphere 109 to be inserted and the inner peripheral surface of the shell 101 and the plug 10
Inside the inner circumferential groove 110 provided at the joint with the side shell 11
At the time of connection with the plug 10,
Contact with the outer peripheral surface of the 10-side shell 11 to maintain waterproofness
An optical connector characterized by comprising an O-ring 111 .