CN202393941U - Optical fiber connector plug having protection cover - Google Patents

Abstract

The utility model discloses an optical fiber connector plug having a protection cover. The optical fiber connector plug having the protection cover includes a plug shell, a protection cover and a guide groove. The protection cover rotates around the axis of a pivot through connecting with the pivot assembled in the guide groove in a guiding and moving manner, and moves along a guiding direction of the guide groove. When in moving, the pivot guides the protection cover to move to an open position or a close position that opens or closes an opening. A torsion spring sleeves the pivot. The torsion spring is provided with a first force applying end and a second force applying end. The first force applying end and the second force applying end has opposite torsion directions. The first force applying end of the torsion spring acts on the protection cover and applies to the protection cover a rotation torque rotating the protection cover to the close position. The second force applying end of the torsion spring follows the moving direction of the pivot and is in a direct or indirect slide supporting cooperation with the plug shell. The optical fiber connector plug having the protection cover in the utility model is simple in structure and easy to manufacture and assemble.

Description

A kind of optical fiber connector plug that has over cap

Technical field

The utility model relates to joints of optical fibre field, especially a kind of optical fiber connector plug that has over cap.

Background technology

The joints of optical fibre that are used for transmitting optical signal; Need avoid the termination of its fiber stub to be damaged or by foreign substance pollutions such as dust, greasy dirts; Therefore the inserted terminal at the joints of optical fibre is provided with over cap; Can the automatic shutter over cap when optical fiber connector plug and fiber adapter are pegged graft; Exist in the prior art optical fiber connector plug that over cap can open automatically when plugging together, when separating, close automatically and adaptive with it in establish the fiber adapter of control flume; The action of its automatic shutter mainly is cooperating that control is sold on the over cap of control flume and optical fiber connector plug through fiber adapter; Realize that over cap and its institute connect pivot under corresponding gathering sill is guided and the rotation of changing at a make-position to an open position, mobile, but the description in this type of prior art referenced patent document EP 0570652, US 5845036.The problem that the optical fiber connector plug that has over cap of the prior art exists is; The size of the resetting-mechanism that includes linear springs, guide pole that acts on over cap on the flexible direction of linear springs in the technical scheme that is provided among the US 5845036 is too huge; Cause pilot hole passage that the special arrangement of housing needs and guide pole and spring match and complex structure, be unfavorable for reducing the manufacture difficulty and the cost of optical fiber connector plug; And this resetting-mechanism acts on the dust cap always; After grafting, will apply power to dust cap towards the fiber adapter pushing tow; The optical fiber connector plug housing is then applied to the power that breaks away from fiber adapter direction pushing tow; The above acting force of resetting-mechanism will cause optical fiber connector plug from fiber adapter, to come off automatically, influence the reliability that optical fiber connector plug is pegged graft.

The utility model content

The utility model is to the existing existing baroque problem of optical fiber connector plug that has over cap, and purpose is to provide a kind of optical fiber connector plug that has over cap simple in structure.

The technical scheme of the utility model is: a kind of optical fiber connector plug that has over cap; Establish the plug casing of fiber stub in comprising; The inserted terminal of plug casing is provided with the opening that exposes fiber stub; Also being equipped with surface, opening place on the plug casing is that fiber stub provides the over cap that covers protection during closed the cooperation; Said plug casing is provided with along the gathering sill of plug grafting direction guiding; Said over cap is through moving being connected of pivot that is assemblied in the said gathering sill with guiding and rotating and move with the guide direction of pivot along gathering sill around pivotal axis; Pivot guiding over cap when moving moves to and opens or closes the opening of said opening, make-position, is arranged with torsion spring on the said pivot, and torsion spring has first and second opposite force side of torsional direction; First force side of torsion spring acts on over cap and over cap applied makes over cap turn to the rotating torque of make-position, and second force side of torsion spring is followed the moving direction of pivot and moved to support with plug casing directly or indirectly and cooperate.

Said over cap be provided with fiber adapter on the control pin of control flume corresponding matching.

Second force side of said torsion spring is supported on the slide block that is slidingly matched along the guide direction and the gathering sill of gathering sill.

Said pivot and gathering sill are rotatably assorted, and second force side of said torsion spring is fixed on the slide block and pivot, slide block and over cap are connected together, and the end face near said opening of said slide block is provided with the cambered surface with said pivotal engagement.

Said second force side is the bending overarm that the torsion spring end is provided with for the perforate of inserting the set correspondence of slide block, and the end of bending overarm is provided with step anticreep set in the corresponding perforate with slide block and hangs tight hook.

The torsion spring of the optical fiber connector plug of the utility model only can apply moment of torsion to over cap and only work when make-position is rotated at open position; Therefore plug together Shi Buhui at optical fiber connector plug and plugging together to cause on the direction and be beneficial to the influence that plugs together, and adopt the torsion spring structure to make that the optical fiber connector plug of the utility model is simple in structure to be easy to make and assembling.

Description of drawings

Fig. 1 is the structural representation of a kind of embodiment of the utility model optical fiber connector plug;

Fig. 2 is the decomposing schematic representation of the local part of the optical fiber connector plug among Fig. 1;

Fig. 3 is the partial sectional view of the over cap closed condition of the optical fiber connector plug among Fig. 1;

Fig. 4 is the partial sectional view of the over cap opening of the optical fiber connector plug among Fig. 1;

Fig. 5 be with Fig. 1 in the peg graft schematic perspective view of the fiber adapter cooperate of optical fiber connector plug;

Fig. 6 is the cut-open view of the fiber adapter among Fig. 5.

Embodiment

Like Fig. 1-shown in Figure 4; The embodiment of the optical fiber connector plug of the utility model; Comprise that front end is the plug casing 1 of inserted terminal and fiber stub (not shown) wherein; The inserted terminal of plug casing 1 is provided with the opening 13 that is used to expose fiber stub; Also being equipped with surface, opening 13 place on the plug casing 1 is that fiber stub provides the over cap 2 that covers protection during closed the cooperation; Said plug casing 1 is provided with the gathering sill 11 along plug grafting direction guiding, and said over cap 2 is fixed with the pivot 23 that in gathering sill 11, rotates and move along the guide direction of gathering sill 11, and said pivot 23 can drive over cap 2 and rotate and move in open position that opens or closes said opening 13 or off-position when in gathering sill 11, moving.The over cap 2 that is shown in an open position is maintained at open position with the corresponding surperficial block cooperation of plug casing 1; The over cap 2 that turns to open position from make-position contacted with surface, opening 13 place before arriving open position all the time, and above structure is identical with prior art.The improvements of the utility model are: be arranged with torsion spring 3 on the said pivot 23; First force side, 31 compressings of torsion spring 3 apply the rotating torque that makes over cap 2 enter into make-position on the corresponding block groove 22 of over cap 2 and to over cap 2; Second force side 32 of torsion spring 3 is fixed on along the guide direction slip of gathering sill 11 and is arranged on the slide block 4 in the gathering sill 11; Force side 32 is specially the bending overarm in the perforate 41 of the correspondence of inserting slide block 4, and the end of bending overarm is provided with the tight hook 33 of step 42 anticreeps extension in the perforate 41 corresponding with slide block 4.

For how the embodiment of the above-mentioned optical fiber connector plug of introducing the utility model uses; Fig. 5, Fig. 6 have shown in a kind of prior art fiber adapter 5 commonly used (can with reference to EP 0570652); Be provided with in the optical fiber adaptive 5 with over cap 2 on control sell 21 control corresponding grooves 23; Dotted the running orbit of the control pin 21 on the over cap 2 of optical fiber connector plug among Fig. 6; Demonstration in conjunction with Fig. 3, Fig. 4 can be known; When optical fiber connector plug inserted fiber adapter 5, the following pressure backward that control pin 21 is controlled at first that groove 23 tilting sections apply overcame the compressing of torsion spring 3 and makes over cap 2 begin Unscrew backward, then restriction site of the terminal arrival of the horizontal segment of control pin 21 in control flume 23; Over cap 2 after opening keeps stationary state; Optical fiber connector plug is then continued to be pushed forward to the position that fiber stub plugs together, and the over cap 2 of this moment moves to gathering sill 11 rear portions and as shown in Figure 4 along gathering sill 11, and the elastic force of torsion spring 3 was cooperated counteracting by over cap 2 and can not play and make over cap 2 return to the effect of closure state with the block of plug casing 1 this moment; When plug separates with socket; The tilting section of the control flume 6 of fiber adapter 5 can drive the control pin 21 of over cap 2; Over cap 2, torsion spring 3, slide block 4 are moved forward along gathering sill, and when over cap 2 arrived make-positions, over cap 2 swivelling cover under the effect of torsion spring 3 was lived opening 13; Simultaneously, optical fiber connector plug separates with fiber adapter fully.

In other embodiment of the utility model; Also slide block 4 can be set; And second force side of torsion spring 3 directly is pressed on the groove bottom of the gathering sill in the housing plug or on the plug casing surface parallel with the guide direction of gathering sill; For avoiding torsion spring 3 scratch plug casings, can do conventional Wear-resistant Treatment to the respective surfaces of plug casing or in second force side of torsion spring, like polishing or coating wear-resistant material layer.

In addition; The said pivot among the utility model embodiment and the connected mode of over cap have two kinds; Such pivot and the over cap of embodiment is connected among a kind of Fig. 1 of being-Fig. 4, and pivot and gathering sill are rotatably assorted, and another kind is that pivoted is assemblied on the over cap; This moment pivot be rotatably assorted with gathering sill or only revolve cooperate all can, two kinds of connections all are to lead mobile in order to make over cap when pivotal axis is rotated, also to receive the gathering sill effect.

Claims (5)

1. optical fiber connector plug that has over cap; Establish the plug casing of fiber stub in comprising; The inserted terminal of plug casing is provided with the opening that exposes fiber stub; Also being equipped with surface, opening place on the plug casing is that fiber stub provides the over cap that covers protection during closed the cooperation; Said plug casing is provided with the gathering sill along plug grafting direction guiding, and said over cap is through moving being connected of pivot of being assemblied in the said gathering sill with guiding and rotate and move with the guide direction of pivot along gathering sill around pivotal axis, and pivot guiding over cap when moving moves to and opens or closes the opening of said opening, make-position; It is characterized in that: be arranged with torsion spring on the said pivot; Torsion spring has first and second opposite force side of torsional direction, and first force side of torsion spring acts on over cap and over cap applied makes over cap turn to the rotating torque of make-position, and second force side of torsion spring is followed the moving direction of pivot and moved to support with plug casing directly or indirectly and cooperate.

2. optical fiber connector plug according to claim 1 is characterized in that: said over cap be provided with fiber adapter on the control pin of control flume corresponding matching.

3. optical fiber connector plug according to claim 1 is characterized in that: second force side of said torsion spring is supported on the slide block that is slidingly matched along the guide direction and the gathering sill of gathering sill.

4. optical fiber connector plug according to claim 3; It is characterized in that: said pivot and gathering sill are rotatably assorted; Second force side of said torsion spring is fixed on the slide block and pivot, slide block and over cap is connected together, and the end face near said opening of said slide block is provided with the cambered surface with said pivotal engagement.

5. optical fiber connector plug according to claim 4; It is characterized in that: said second force side is the bending overarm that the torsion spring end is provided with for the perforate of inserting the set correspondence of slide block, and the end of bending overarm is provided with step anticreep set in the corresponding perforate with slide block and hangs tight hook.

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