CN201673283U

CN201673283U - Fiber connector

Info

Publication number: CN201673283U
Application number: CN2010202064397U
Authority: CN
Inventors: 连晋墩
Original assignee: SHANGHAI BYNET CO Ltd
Current assignee: SHANGHAI BYNET CO Ltd
Priority date: 2010-05-26
Filing date: 2010-05-26
Publication date: 2010-12-15
Anticipated expiration: 2020-05-26

Abstract

A fiber connector comprises a coupling cover, a tail cover, a fixed head cover, a metal support tube and a pin assembly. The pin assembly is assembled in the space between the fixed head cover and the metal support tube connected with each other. The fiber connector is characterized in that: the fixed head cover is an integrated hollow PBT component and a partition board is arranged between the round hole in the head part and the round hole in the tail part; the middle of the partition board is provided with a through hole communicated with the round hole in the head part and the round hole in the tail part; the left and right sides in the head part are symmetrically provided with flanges and the left and right sides in the middle of the tail part are symmetrically provided with raised buttons. In addition, the middle parts of the top surface and the bottom surface of the tail part is respectively provided with a notch. The metal support tube is a hollow tube and has a connecting end connected with the tail of the fixed head cover. The pin assembly comprises a ceramic pin, a tail handle, a jacket, a jacket head sleeve, a jacket tube and a spring. The ceramic pin has a matching hole in which the tail end of the pinhole guide port performs the interference fit with the head end of the metal tail handle, therefore the both are fixedly connected and the central line of the through hole of the tail handle basically aligns to the central line of the pinhole.

Description

The joints of optical fibre

Technical field

The utility model relates to Fibre Optical Communication Technology, particularly relates to a kind of joints of optical fibre.

Background technology

The joints of optical fibre are to be used for the device that removably connects between optical fiber and the optical fiber, and it gets up the accurate butt joint of two end faces of optical fiber, make the luminous energy of launching fiber output can be coupled to greatest extent to receive in the optical fiber and go.To a certain extent, the performance of the joints of optical fibre has also been determined reliability and every performance of optical transmission system.

Usually, in optical communication construction, maintenance and repairing process, need fast and accurately light signal to be docked, thereby produced quick coupler.Main in the market quick coupler is " cold connector ", adopts the V-shaped groove docking mode to connect, and its shortcoming is that the big long-term reliability of connecting loss is low.

Therefore, need really a kind of new simple in structure, connect fast, all deficiencies that the low joints of optical fibre of loss can overcome above-mentioned prior art.

Summary of the invention

The purpose of this utility model provides a kind of new joints of optical fibre to remedy the deficiencies in the prior art, realize the quick link of optical fiber, and it is minimum that loss is dropped to.

The joints of optical fibre provided by the utility model mainly comprise: coupling cover, tail cover, fixedly headgear, metal stay pipe and contact pin assembly; Wherein the link of stay pipe is fixedly connected in the afterbody circular hole of fixing headgear, and the contact pin assembly then is assembled in this fixedly interior volume between headgear and this metal stay pipe; Wherein, the fixing PBT member of the hollow that is formed in one of headgear, be provided with a dividing plate between its head circular hole and the afterbody circular hole, be provided with through hole in this dividing plate middle part and be communicated with this head circular hole and this afterbody circular hole, the left and right sides of its head is arranged with a grade edge, and the left and right sides in the middle of its afterbody is arranged with the buckle of projection; In addition, the end face of its afterbody and bottom surface middle part is provided with fluting; The metal stay pipe is the hollow tube body shape, has a link, and its inside is provided with the bigger endoporus of diameter; And a handheld terminal, its inside is provided with the less endoporus of diameter; The link external diameter of this metal stay pipe is more smaller than the internal diameter of fixing headgear afterbody circular hole, and this link trailing edge is provided with the circular conical surface that relative both sides cut part, and the circular conical surface width after cutting is slightly less than the fixedly end face of headgear afterbody and the fluting on the bottom surface; The contact pin assembly is made up of ceramic contact pin, caudal peduncle, cartridge clip, cartridge clip headgear tube, cover clamp and spring, wherein, ceramic contact pin and caudal peduncle have the tail end interference fit of pin hole guiding port in the mating holes of metal caudal peduncle head end, make both through hole center line and pin hole center line substantial alignment fixedly connected and caudal peduncle.

By the joints of optical fibre of above-mentioned technical characterictic of the present utility model, can make its designs simplification, installation quality and efficient greatly improve, and realize that the low-loss of optical fiber connects fast.

Description of drawings

Figure 1A and 1B are the schematic perspective view according to the joints of optical fibre of the present utility model;

Fig. 2 is according to joints of optical fibre three-dimensional cutaway view of the present utility model;

Fig. 3 is the three-dimensional exploded view according to the joints of optical fibre of the present utility model;

Fig. 4 A-4B is respectively planar part view and the schematic perspective view thereof according to the coupling cover of the joints of optical fibre of the present utility model;

Fig. 5 A-5C is respectively planar part view and the schematic perspective view thereof according to the fixedly headgear of the joints of optical fibre of the present utility model;

Fig. 6 A-6C is the schematic perspective view that the fibre-optical splice that assembles is connected with joint flange; And

Fig. 7 A-7B is respectively the schematic perspective view of joint flange, and the schematic perspective view that cuts out the joint flange behind the top board.

Embodiment

Describe embodiment of the present utility model in detail below in conjunction with accompanying drawing.

Figure 1A has one of the schematic perspective view of the FC joints of optical fibre 10 of dust cap 5 for the utility model, Figure 1B has removed the schematic perspective view of seeing from another direction after the dust cap for the FC joints of optical fibre of the present utility model.The housing parts of the joints of optical fibre 10 of the present utility model comprises: coupling cover 11 and tail cover 12.Referring to Fig. 2 and Fig. 3, be provided with fixedly headgear 13, metal stay pipe 14 and contact pin assembly 15 in coupling cover 11 internal sleeve.The link of stay pipe 14 is fixedly connected in the afterbody circular hole of fixing headgear 13, and contact pin assembly 15 then is assembled in this fixedly interior volume between headgear 13 and this metal stay pipe 14.

The PBT material members of the hollow that coupling cover 11 is formed in one, its structure is shown in Fig. 4 A-4D, basically the profile of the conformance with standard FC joints of optical fibre and size, its head both sides are provided with roughly rectangular opening, this rectangular aperture forms stopper section 111 near head end one side, forms buckle slot 112 near opposite side.The same with the standard fiber connector in addition, on an outer surface, form a gib block 113.

The tail cover 12 PBT members that are formed in one, structure is provided with the corresponding link of afterbody square hole of shape and size and coupling cover 11 as shown in Figure 3, is provided with circular hole in this link inside, corresponding to the tail end of metal stay pipe 14; And be provided with the tail end of flexible structural design, optical fiber played the effect of protection and guiding with certain-length.

The fixing PBT member that is formed in one of headgear 13, its structure is shown in Fig. 5 A-5C.Fixedly be provided with a dividing plate 131 between the head circular hole of headgear 13 and the afterbody circular hole, be provided with through hole 132 in dividing plate 131 middle parts and be communicated with this head circular hole and this afterbody circular hole, advantageously, this afterbody circular hole also forms the openend 133 that an internal diameter outwards enlarges.Dividing plate 131 is provided with locating piece 134 towards the one side of afterbody circular hole, shown in the embodiment among the figure, be symmetrical two locating pieces 133, fixedly the left and right sides of headgear 13 heads also is arranged with grade edge 135, and the left and right sides in the middle of its afterbody is arranged with the buckle 136 of projection.Fixedly the end face of headgear 13 afterbodys and bottom surface middle part is provided with fluting 137, makes its afterbody left and right sides have certain elastic force, and is provided with hyphen groove 138 in this afterbody left and right sides face.Fixedly the end face both sides of headgear 13 form beveled edge 139 in addition, corresponding to the shape of coupling cover 11 inside.

Metal stay pipe 14 is the nickel-clad copper material, and primary structure is shown in Fig. 6 A-6B, and the one end is a link, and inside is provided with the bigger endoporus of diameter 141; Its other end is a handheld terminal, and inside is provided with the less endoporus of diameter 142.The link external diameter of this metal stay pipe 14 is more smaller than the internal diameter of fixing headgear afterbody circular hole, and this link trailing edge is provided with the circular conical surface that relative both sides cut part, and the circular conical surface width after cutting is slightly less than the fixedly end face and the fluting on the bottom surface 137 of headgear 13 afterbodys.When the link of metal stay pipe 14 is inserted into fixedly headgear 13 afterbody circular holes by stronger external force, the inclined-plane of this circular conical surface is resisted against the fixedly interior inclined-plane of headgear 13 afterbody circular hole openends, because two sides of tail has small elasticity, and make its circular conical surface that is headed into until link embed in this fluting 137 fixing.

Before installing and fixing headgear 13 and stay pipe 14, penetrate after its endoporus again stay pipe 14 is connected with fixing headgear 13 assembling the link of contact pin assembly 15 in advance from stay pipe 14.This contact pin assembly 15 is made up of ceramic contact pin 151, caudal peduncle 152, cartridge clip 153, cartridge clip headgear tube 154, cover clamp 155 and spring 156.Wherein, ceramic contact pin 151 is connected as shown in Figure 4 with caudal peduncle 152, and the tail end interference fit with pin hole guiding port makes both through hole center line and pin hole center line substantial alignment fixedly connected and caudal peduncle 152 in the mating holes of metal caudal peduncle 152 head ends.The diameter of ceramic contact pin 141 is smaller than the diameter of through hole 132, but the head diameter of caudal peduncle 142 is then than the slightly larger in diameter of through hole 132.The head that caudal peduncle 152 diameters are bigger is provided with four locating slots at right angle each other, and its shape and size are corresponding to the fixing locating piece 133 of two symmetries of headgear 13 inside.Fixedly the less afterbody of caudal peduncle 152 diameters of headgear 13 heads forms three sections, one section diameter maximum of close head, and middle one section diameter minimum is by one section slightly larger in diameter of tail end.In specific embodiment shown in Figure 3, cartridge clip 153 is synthetic by two cover clamps that pile, when assembling, leading section with its head diameter minimum can be plugged between the afterbody stage casing of cartridge clip headgear tube 154 and caudal peduncle 152 earlier, the inside surface of head is that stepped circular hole is corresponding with the afterbody stage casing and the outer section diameter of caudal peduncle 152 respectively, thereby the afterbody stage casing and the outer section of caudal peduncle 152 are contained in cartridge clip 153 heads, then, the afterbody that cartridge clip 153 is long is sheathed in the clamp 155, spring 156 puts from cover clamp 155 rear ends, its front end is by the head backstop of caudal peduncle 152, its rear end will be inserted in the head circular hole of stay pipe 14, the contact pin assembly 15 that fits together as schematically shown in Figure 3, contact pin assembly 15 is installed on fixedly after the headgear 13 and stay pipe 14, and fixedly headgear 13 and stay pipe 14 after will connecting are inserted in the coupling cover 11 together again.

When headgear 13 and metal stay pipe 14 have been installed fixedly, to insert according to correct guiding, fixedly the end face both sides of headgear 13 form beveled edge 139 and will can all insert coupling cover 11 inside corresponding to the inclined plane shape of coupling cover 11 inside, shelves edge 135 and buckle 136 by fixing headgear 13 both sides, match with the stopper section 111 and the draw-in groove 112 of coupling cover 11 front end both sides, fixing headgear 13 can be assemblied among the coupling cover 11 movably.Since vertical outermost end distance " L " of stopper section 111, coupling cover 11 both sides and draw-in groove 112 greater than vertical outermost end of the shelves edge 135 of fixing headgear both sides and buckle 136 apart from " l ", fixedly but headgear 13 longitudinally-movings are in length range thereby make, and this mobilizable length range is haply smaller or equal to " L-l ".

When connecting optical fiber, earlier exposed optical fiber is penetrated from the flexible tail perforation of tail cover 12, aiming at chuck 154 middle holes then penetrates, until from the pin hole of ceramic contact pin 151, coming out, put after the tail cover, ceramic contact pin 151 end faces are carried out simple hand lapping, can realize quick connection.Fig. 6 A-6C is the synoptic diagram that the joints of optical fibre of the present utility model dock with joint flange, and Fig. 7 A is the schematic perspective view of joint flange, and it is transparent in to show its inner structure that its top board is.Fig. 7 B is the schematic perspective view of joint flange, and its top board is clipped to show its inner structure.These structures with design such as be connected, be prior art, for the purpose of concise and to the point, do not do specific descriptions.

Although explanation by way of example above; the preferable embodiment of the utility model has been described; protection domain of the present utility model is not limited in above-mentioned explanation, but is defined by all technical characterictics and the equivalent technologies feature thereof that appended claim provides.Persons skilled in the art are understandable that, are not deviating under the essence and marrow prerequisite that the utility model instructs, and any modifications and variations may still drop within the protection domain of the utility model claim.

Claims

1. joints of optical fibre mainly comprise: coupling cover (11), tail cover (12), fixedly headgear (13), metal stay pipe (14) and contact pin assembly (15); Wherein the link of stay pipe (14) is fixedly connected in the afterbody circular hole of fixing headgear (13), and contact pin assembly (15) then is assembled in this fixedly interior volume between headgear (13) and this metal stay pipe (14); It is characterized in that

The PBT member of the hollow that described fixedly headgear (13) is formed in one, be provided with a dividing plate (131) between its head circular hole and the afterbody circular hole, be provided with through hole (132) in this dividing plate (131) middle part and be communicated with this head circular hole and this afterbody circular hole, the left and right sides of its head is arranged with a grade edge (135), and the left and right sides in the middle of its afterbody is arranged with the buckle (136) of projection; In addition, the end face of its afterbody and bottom surface middle part is provided with fluting (137);

Described metal stay pipe (14) is the hollow tube body shape, has a link, and its inside is provided with the bigger endoporus of diameter (141); And a handheld terminal, its inside is provided with the less endoporus of diameter (142); The link external diameter of this metal stay pipe (14) is more smaller than the internal diameter of fixing headgear (13) afterbody circular hole, this link trailing edge is provided with the circular conical surface that relative both sides cut part, and the circular conical surface width after cutting is slightly less than the fixedly end face and the fluting on the bottom surface (137) of headgear 13 afterbodys;

Described contact pin assembly (15) is made up of ceramic contact pin (151), caudal peduncle (152), cartridge clip (153), cartridge clip headgear tube (154), cover clamp (155) and spring (156), wherein, the tail end interference fit that ceramic contact pin (151) and caudal peduncle (152) have the pin hole guiding port makes both through hole center line and pin hole center line substantial alignment fixedly connected and caudal peduncle (152) in the mating holes of metal caudal peduncle (152) head end.