CN201035187Y

CN201035187Y - A contact element for rear sleeve fixed optical cable connector

Info

Publication number: CN201035187Y
Application number: CNU200720003373XU
Authority: CN
Inventors: 方尚杰; 胡志国; 李小卫
Original assignee: China Aviation Optical Electrical Technology Co Ltd
Current assignee: China Aviation Optical Electrical Technology Co Ltd
Priority date: 2007-02-08
Filing date: 2007-02-08
Publication date: 2008-03-12
Anticipated expiration: 2017-02-08

Abstract

The utility model relates to an improvement of optical cable connector contact element for fixing the back case, comprising a contact pin 1, a contact pin caudal peduncle 2, a front case 3, a spring 4, a back case 5, a thermal shrunken pipe 6 and an optical cable 7. The utility model is characterized in that the connecting structure between the back end of the front case 3 and the front end of the back case 5 is elastic key connection. The utility model has simple structure, convenient processing and small processing difficulty, which greatly reduces the product cost.

Description

A kind of rear jacket stationary type fiber optic cable connector contact member

Technical field

The utility model relates to the improvement to the fixing fiber optic cable connector contact member of back cover.

Background technology

Existing a kind of rear jacket stationary type fiber optic cable connector contact member is the disclosed structure of U.S. Pat 6811321 " OPTICAL CONNECTOR FOR SIMULTANEOUSLY CONNECTING A PLURALITY OFFIBER OPTICAL CABLES AND ADAPTER FOR SAID CONNECTOR ", the profile of its protheca and endoporus all are square, the front end of its contact pin caudal peduncle also is square, cause the structure of contact element very complicated, add the many covers of needs in man-hour particular manufacturing craft, complex process, difficulty of processing is big, the cost height.

Summary of the invention

The purpose of this utility model is: propose a kind of simple in structure, easy to process, difficulty of processing is little, cost is low rear jacket stationary type fiber optic cable connector contact member.

The technical solution of the utility model is: a kind of rear jacket stationary type fiber optic cable connector contact member, it is by contact pin 1, contact pin caudal peduncle 2, protheca 3, spring 4, back cover 5, heat-shrink tube 6 and optical cable 7 are formed, the rear end of contact pin 1 be inserted in the large diameter hole of contact pin caudal peduncle 2 center pit leading portions and with this hole interference fit, the front end of contact pin 1 passes from the center pit of protheca 3 front end faces, contact pin caudal peduncle 2 is the sleeves that profile is the step axle, be arranged in the endoporus of protheca 3, the enlarged diameter section of contact pin caudal peduncle 2 front ends and the endoporus of protheca 3 are slidingly matched, spring 4 is arranged in the endoporus of protheca 3, the front end sleeve of spring 4 is on the reduced diameter section cylinder of contact pin caudal peduncle 2 rear ends, the front end of back cover 5 is connected with the rear end of protheca 3, the rear end of spring 4 withstands on the front end face of back cover 5, optical cable 7 inserts from the rear end of back cover 5, the inner core of optical cable 7 pierces into the endoporus of contact pin caudal peduncle 2, fibre core in optical cable 7 inner cores pierces into the center pit of contact pin 1, heat-shrink tube 6 be wrapped in back cover 5 the rear end and with the outside of the contiguous one section optical cable 7 in this rear end; It is characterized in that, the rear end of protheca 3 is that elastic key is connected with the syndeton of back cover 5 front ends, 3～6 that stretch, that be uniformly distributed along the circumference vertically through slots 8 are arranged in the rear end of protheca 3, the back end circumference of protheca 3 is divided into the elastic claw 9 of 3～6 symmetries, the groove 10 that an annular is arranged on the inwall in the rear port of protheca 3 makes the outer end of each elastic claw 9 form an elastic key 11; On the outer circumference surface of back cover 5 front ends annular keyway 12 is arranged, the front end of back cover 5 injects in the rear port of protheca 3, and the elastic key 11 on the protheca 3 rear end elastic claws 9 embeds in the annular keyway 12 of back cover 5 front ends.

The utility model has the advantages that: simple in structure, easy to process, difficulty of processing is little, greatly reduces cost of products.

Description of drawings

Fig. 1 is a structural representation of the present utility model.

Fig. 2 is the structural representation of the protheca 3 in the utility model.

Fig. 3 is the structural representation of the back cover 5 in the utility model.

Embodiment

Below the utility model is described in further details.Referring to Fig. 1,2,3, rear jacket stationary type fiber optic cable connector contact member of the present utility model, it is by contact pin 1, contact pin caudal peduncle 2, protheca 3, spring 4, back cover 5, heat-shrink tube 6 and optical cable 7 are formed, the rear end of contact pin 1 be inserted in the large diameter hole of contact pin caudal peduncle 2 center pit leading portions and with this hole interference fit, the front end of contact pin 1 passes from the center pit of protheca 3 front end faces, contact pin caudal peduncle 2 is the sleeves that profile is the step axle, be arranged in the endoporus of protheca 3, the enlarged diameter section of contact pin caudal peduncle 2 front ends and the endoporus of protheca 3 are slidingly matched, spring 4 is arranged in the endoporus of protheca 3, the front end sleeve of spring 4 is on the reduced diameter section cylinder of contact pin caudal peduncle 2 rear ends, the front end of back cover 5 is connected with the rear end of protheca 3, the rear end of spring 4 withstands on the front end face of back cover 5, optical cable 7 inserts from the rear end of back cover 5, the inner core of optical cable 7 pierces into the endoporus of contact pin caudal peduncle 2, and the fibre core in optical cable 7 inner cores pierces into the center pit of contact pin 1, heat-shrink tube 6 be wrapped in back cover 5 the rear end and with the outside of the contiguous one section optical cable 7 in this rear end; It is characterized in that, the rear end of protheca 3 is that elastic key is connected with the syndeton of back cover 5 front ends, 3～6 that stretch, that be uniformly distributed along the circumference vertically through slots 8 are arranged in the rear end of protheca 3, the back end circumference of protheca 3 is divided into the elastic claw 9 of 3～6 symmetries, the groove 10 that an annular is arranged on the inwall in the rear port of protheca 3 makes the outer end of each elastic claw 9 form an elastic key 11; On the outer circumference surface of back cover 5 front ends annular keyway 12 is arranged, the front end of back cover 5 injects in the rear port of protheca 3, and the elastic key 11 on the protheca 3 rear end elastic claws 9 embeds in the annular keyway 12 of back cover 5 front ends.

In an embodiment of the present utility model, in the rear end of protheca 34 that stretch, that be uniformly distributed along the circumference vertically through slots 8 are arranged, the back end circumference of protheca 3 is divided into the elastic claw 9 of 4 symmetries.

Claims

1. rear jacket stationary type fiber optic cable connector contact member, it is by contact pin [1], contact pin caudal peduncle [2], protheca [3], spring [4], back cover [5], heat-shrink tube [6] and optical cable [7] are formed, the rear end of contact pin [1] be inserted in the large diameter hole of contact pin caudal peduncle [2] center pit leading portion and with this hole interference fit, the front end of contact pin [1] passes from the center pit of protheca [3] front end face, contact pin caudal peduncle [2] is a sleeve that profile is the step axle, be arranged in the endoporus of protheca [3], the enlarged diameter section of contact pin caudal peduncle [2] front end and the endoporus of protheca [3] are slidingly matched, spring [4] is arranged in the endoporus of protheca [3], the front end sleeve of spring [4] is on the reduced diameter section cylinder of contact pin caudal peduncle [2] rear end, the front end of back cover [5] is connected with the rear end of protheca [3], the rear end of spring [4] withstands on the front end face of back cover [5], optical cable [7] inserts from the rear end of back cover [5], the inner core of optical cable [7] pierces into the endoporus of contact pin caudal peduncle [2], fibre core in optical cable [7] inner core pierces into the center pit of contact pin [1], heat-shrink tube [6] be wrapped in back cover [5] the rear end and with the outside of the contiguous one section optical cable [7] in this rear end; It is characterized in that, the rear end of protheca [3] is that elastic key is connected with the syndeton of back cover [5] front end, 3～6 that stretch, that be uniformly distributed along the circumference vertically through slots [8] are arranged in the rear end of protheca [3], the back end circumference of protheca [3] is divided into the elastic claw [9] of 3～6 symmetries, the groove [10] that an annular is arranged on the inwall in the rear port of protheca [3] makes the outer end of each elastic claw [9] form an elastic key [11]; On the outer circumference surface of back cover [5] front end annular keyway [12] is arranged, the front end of back cover [5] injects in the rear port of protheca [3], and the elastic key [11] on protheca [3] the rear end elastic claw [9] embeds in the annular keyway [12] of back cover [5] front end.