CN202522735U

CN202522735U - Anti-rotation fiber contact and fiber connector using anti-rotation fiber contact

Info

Publication number: CN202522735U
Application number: CN2011205725076U
Authority: CN
Inventors: 刘涛
Original assignee: China Aviation Optical Electrical Technology Co Ltd
Current assignee: China Aviation Optical Electrical Technology Co Ltd
Priority date: 2011-12-31
Filing date: 2011-12-31
Publication date: 2012-11-07
Anticipated expiration: 2021-12-31

Abstract

The utility model relates to an anti-rotation fiber contact and a fiber connector using the anti-rotation fiber contact. The anti-rotation fiber contact comprises a pin, wherein the tail end of the pin is fixedly inserted into a tail tube, the front end of the tail tube is equipped with a flange, a contact housing which can be fixedly assembled on an insulator of the fiber connector is movably sleeved on the tail tube along the axial direction, the contact housing matches with the tail tube in a rotation stopping manner, the front side of the flange matches with an inward-folding edge in the front end of the contact housing in a limiting manner, the rear end of the tail tube matches with a stage surface on the inner wall surface of the contact housing in a limiting manner, and a buffer spring is top mounted between the rear side of the flange and the stage surface. During the using process, the contact housing can be fixedly assembled on the insulator of the fiber contact, so that rotation-stopping matching between the tail tube and the contact housing is changed into rotation-stopping matching between the pin and the insulator of the fiber connector, thereby solving the problem that in the prior art the pin of the fiber contact rotates on the insulator of the fiber connector.

Description

A kind of anti-rotation optical fiber contact and use the joints of optical fibre of this contact element

Technical field

The utility model relates to the optical connector field, especially a kind of anti-rotation optical fiber contact and use the joints of optical fibre of this contact element.

Background technology

Optical fiber contact is the core component in the joints of optical fibre; The reliability of the joints of optical fibre has directly influenced the performance of light connector and light path connection, and at present, optical fiber contact visible on the market mostly comprises contact pin; The tail end of said contact pin fixedly is plugged in the tail pipe; The front end of said tail pipe has ring flange, and the rear end movable sleeve of tail pipe is provided with spring abutment, is provided with buffer spring between said ring flange and the spring abutment; During use; Described optical fiber contact is assemblied in the insulator of the corresponding joints of optical fibre; Make the insulator secure fit of the described spring abutment and the joints of optical fibre; The outer peripheral face that makes described ring flange in the insulator of the joints of optical fibre contact pin axially on activity-oriented cooperate, when pegging graft, can come compensated optical fiber contact element error in length in the axial direction through the compression of described buffer spring on the one hand with adaptive contact element; Can make on the other hand between the contact element of front end and intermateable connector of contact pin and produce certain pretightning force, thereby guarantee the reliability of the joints of optical fibre and intermateable connector grafting; But; Owing to do not have between the tail pipe of said optical fiber contact and the insulator of the joints of optical fibre and only revolve structure; Therefore the contact pin situation of in insulator, rotating happens occasionally, and the loss that this has then strengthened the contact pin of light contact element makes the reliability of the joints of optical fibre be difficult to be guaranteed.

Summary of the invention

The purpose of the utility model is to provide a kind of anti-rotation optical fiber contact, the problem that can on the insulator of the joints of optical fibre, rotate with the contact pin that solves existing optical fiber contact.

Simultaneously, the purpose of the utility model also is to provide the joints of optical fibre that use above-mentioned anti-rotation optical fiber contact.

In order to address the above problem; The anti-rotation optical fiber contact of the utility model adopts following technical scheme: a kind of anti-rotation optical fiber contact, comprise contact pin, and the tail end of said contact pin fixedly is plugged in the tail pipe; The front end of said tail pipe has ring flange; Being slidingly connected vertically on the tail pipe is useful on the contact element housing on the insulator that fixedly is assemblied in the joints of optical fibre, and said contact element housing only revolves with tail pipe and cooperates, the front side of said ring flange be located at contact element housing front end in turn edge spacing the cooperation; Spacing cooperation of step surface on the rear end of tail pipe and the internal face of being located at the contact element housing, be top-loaded with buffer spring between the rear side of ring flange and the said step surface.

Only revolve and cooperate through the spin slot that ends of being located at the protruding key on the said ring flange outer peripheral face and being located at contact element housing front end between said contact element housing and the tail pipe, said end spin slot in the degree of depth that the contact element housing shaft makes progress greater than the thickness of said protruding key on the tail pipe fore-and-aft direction.

Said tail pipe is the coaxial anti-slip tank that offers on the outside wall surface at place, its rear end.

Comprise that also the rear end that is used to be sheathed on tail pipe is pressed in the bunch cover on the outside wall surface of tail pipe with the traction-resistant fibre with optical fiber.

The joints of optical fibre of the utility model adopt following technical scheme: the joints of optical fibre; Comprise housing and be assemblied in the optical fiber contact in the said housing through insulator; Said optical fiber contact comprises contact pin; The tail end of said contact pin fixedly is plugged in the tail pipe, and the front end of said tail pipe has ring flange, and contact element housing with said insulator secure fit vertically is slidingly connected on the said tail pipe; Said contact element housing only revolves with tail pipe and cooperates; The front side of said ring flange be located at contact element housing front end in turn edge spacing the cooperation, the spacing cooperation of step surface on the rear end of tail pipe and the internal face of being located at the contact element housing, be top-loaded with buffer spring between the rear side of ring flange and the said step surface.

Because the anti-rotation optical fiber contact of the utility model puts the described contact element housing that has been slidingly connected vertically at its tail; The tail cover only revolves with the contact element housing and cooperates and cooperate with the contact element housing is movable vertically; Therefore in use; Can described contact element housing fixedly be assemblied on the insulator of optical fiber contact; At this moment, tail cover cooperates with only revolving of contact element housing and just is converted into tail and overlaps and cooperate, be converted into said contact pin with only revolving of the insulator of the joints of optical fibre and cooperate with only the revolving of insulator of the joints of optical fibre, thereby has solved the problem that the contact pin of existing optical fiber contact can rotate on the insulator of the joints of optical fibre.

Description of drawings

Fig. 1 is the structural representation of embodiment 1 of the anti-rotation optical fiber contact of the utility model;

Fig. 2 is the structural representation of embodiment 1 of the joints of optical fibre of the utility model;

Fig. 3 is the structural representation of the optical fiber contact among Fig. 2.

Embodiment

The embodiment 1 of anti-rotation optical fiber contact, as shown in Figure 1, have contact pin 1 and bunch cover 2; In the present embodiment, contact pin 1 adopts ceramic contact pin, and the tail end of contact pin 1 is coaxial fixedly to be plugged in the tail pipe 3; In the present embodiment, this tail pipe 3 adopts the metal tail pipe, and the front end of tail pipe 3 is provided with the ring flange 3-1 of outside turnover; The outer peripheral face of ring flange 3-1 is provided with a protruding key 3-1.1, and this protruding key is along the protrusion radially outward of tail pipe 3, and the rear end of tail pipe 3 is the coaxial anti-slip tank 3-2 that is provided with on outside wall surface; Anti-slip tank 3-2 is used for traction-resistant fibre 5 frictional fit with optical fiber 4, realizes the tension function of anti-rotation optical fiber contact; The coaxial contact element housing 6 that is arranged with on the tail pipe 3; The outline of contact element housing 6 is pre-large post-small multidiameter shape and has penetrating vertically endoporus; The endoporus of contact element housing 6 is pre-large post-small stepped hole; Thereby make on the internal face of contact element housing 6 and to form forward a step surface in its adjoiner of large and small section; The front end of contact element housing 6 in shell wall be provided with to open front end spin slot 6-1, the protruding key on the ring flange of tail pipe 3 only is flush-mounted in the spin slot 6-1, thereby realized that only revolving between tail pipe 3 and the contact element housing 6 cooperates; End spin slot 6-1 in the degree of depth of connector shell on axially greater than protruding key 3-1.1 at the thickness of tail pipe 3 on axially, thereby make the relative activity that still has setting between tail pipe 3 and the contact element housing 6 in the axial direction; In addition; The front end of contact element housing 6 be provided with close up to form in the 6-2 that turns edge; The 6-2 that turns edge in being somebody's turn to do cooperates with ring flange is spacing in the place ahead of ring flange 3-1; Thereby can prevent that tail pipe 3 from disengaging part housing 6 from contact element housing 6 front ends, be top-loaded with buffer spring 7 between step surface in the contact element housing 6 and the trailing flank of ring flange 3-1; Bunch cover 2 adopts metallic sheaths, be used to be sheathed on the tail pipe and through the pressurized drawdown deformation with the spacing tail pipe 3 that is pressed in of the tension of light.

In other embodiment of anti-rotation optical fiber contact; Can also be on the ring flange of the tail pipe described in the embodiment 1 of anti-rotation optical fiber contact end spin slot or only revolve the hole; The guidepost that overhangs forward in the front end setting of said contact element housing, thus realize that only revolving between tail pipe and the contact element housing cooperates.

The embodiment 1 of the joints of optical fibre shown in Fig. 2-3, has housing 101, is located at the insulator 102 in the housing 101 and is assemblied in the optical fiber contact 103 on the insulator 102; Optical fiber contact has contact pin 11 and bunch cover 12, and in the present embodiment, contact pin 11 adopts ceramic contact pin; The tail end of contact pin 11 is coaxial fixedly to be plugged in the tail pipe 13, and in the present embodiment, this tail pipe 13 adopts the metal tail pipe; The front end of tail pipe 13 is provided with the ring flange 13-1 of outside turnover; The outer peripheral face of ring flange 13-1 is provided with a protruding key 13-1.1, and this protruding key is along the protrusion radially outward of tail pipe 13, and the rear end of tail pipe 13 is the coaxial anti-slip tank 13-2 that is provided with on outside wall surface; Anti-slip tank 13-2 is used for traction-resistant fibre 15 frictional fit with optical fiber 14, realizes the tension function of anti-rotation optical fiber contact; The coaxial contact element housing 16 that is arranged with on the tail pipe 13; The outline of contact element housing 16 is pre-large post-small multidiameter shape and has penetrating vertically endoporus; The endoporus of contact element housing 16 is pre-large post-small stepped hole; Thereby make on the internal face of contact element housing 16 and to form forward a step surface in its adjoiner of large and small section; The front end of contact element housing 16 in shell wall be provided with to open front end spin slot 16-1, the protruding key on the ring flange of tail pipe 13 only is flush-mounted in the spin slot 16-1, thereby realized that only revolving between tail pipe 13 and the contact element housing 16 cooperates; End spin slot 6-1 in the degree of depth of connector shell on axially greater than protruding key 13-1.1 at the thickness of tail pipe 13 on axially, thereby make the relative activity that still has setting between tail pipe 13 and the contact element housing 16 in the axial direction; In addition; The front end of contact element housing 16 be provided with close up to form in the 16-2 that turns edge; The 16-2 that turns edge in being somebody's turn to do cooperates with ring flange is spacing in the place ahead of ring flange 13-1; Thereby can prevent that tail pipe 13 from disengaging part housing 16 from contact element housing 16 front ends, be top-loaded with buffer spring 17 between step surface in the contact element housing 16 and the trailing flank of ring flange 13-1; Bunch cover 12 adopts metallic sheaths, be used to be sheathed on the tail pipe and through the pressurized drawdown deformation with the spacing tail pipe 13 that is pressed in of the tension of light.

Claims

1. anti-rotation optical fiber contact; Comprise contact pin, the tail end of said contact pin fixedly is plugged in the tail pipe, and the front end of said tail pipe has ring flange; It is characterized in that; Being slidingly connected vertically on the tail pipe is useful on the contact element housing on the insulator that fixedly is assemblied in the joints of optical fibre, and said contact element housing only revolves with tail pipe and cooperates, the front side of said ring flange be located at contact element housing front end in turn edge spacing the cooperation; Spacing cooperation of step surface on the rear end of tail pipe and the internal face of being located at the contact element housing, be top-loaded with buffer spring between the rear side of ring flange and the said step surface.

2. anti-rotation optical fiber contact according to claim 1; It is characterized in that; Only revolve and cooperate through the spin slot that ends of being located at the protruding key on the said ring flange outer peripheral face and being located at contact element housing front end between said contact element housing and the tail pipe, said end spin slot in the degree of depth that the contact element housing shaft makes progress greater than the thickness of said protruding key on the tail pipe fore-and-aft direction.

3. anti-rotation optical fiber contact according to claim 1 is characterized in that, said tail pipe is the coaxial anti-slip tank that offers on the outside wall surface at place, its rear end.

4. anti-rotation optical fiber contact according to claim 1 is characterized in that, comprises that also the rear end that is used to be sheathed on tail pipe is pressed in the bunch cover on the outside wall surface of tail pipe with the traction-resistant fibre with optical fiber.

5. the joints of optical fibre comprise housing and are assemblied in the optical fiber contact in the said housing through insulator, and said optical fiber contact comprises contact pin; The tail end of said contact pin fixedly is plugged in the tail pipe; The front end of said tail pipe has ring flange, it is characterized in that, contact element housing with said insulator secure fit vertically is slidingly connected on the said tail pipe; Said contact element housing only revolves with tail pipe and cooperates; The front side of said ring flange be located at contact element housing front end in turn edge spacing the cooperation, the spacing cooperation of step surface on the rear end of tail pipe and the internal face of being located at the contact element housing, be top-loaded with buffer spring between the rear side of ring flange and the said step surface.

6. the joints of optical fibre according to claim 5; It is characterized in that; Only revolve and cooperate through the spin slot that ends of being located at the protruding key on the said ring flange outer peripheral face and being located at contact element housing front end between said contact element housing and the tail pipe, said end spin slot in the degree of depth that the contact element housing shaft makes progress greater than the thickness of said protruding key on the tail pipe fore-and-aft direction.

7. the joints of optical fibre according to claim 5 is characterized in that, said tail pipe is the coaxial anti-slip tank that offers on the outside wall surface at place, its rear end.

8. the joints of optical fibre according to claim 5 is characterized in that, comprise that also the rear end that is used to be sheathed on tail pipe is pressed in the bunch cover on the outside wall surface of tail pipe with the traction-resistant fibre with optical fiber.