CN2535813Y

CN2535813Y - Optical-fiber connection adaptor

Info

Publication number: CN2535813Y
Application number: CN 02215951
Authority: CN
Inventors: 邬建明; 阚荣
Original assignee: NINGBO YUNSHENG OPTICAL COMMUNICATION TECHNOLOGY Inc
Current assignee: NINGBO YUNSHENG OPTICAL COMMUNICATION TECHNOLOGY Inc
Priority date: 2002-02-28
Filing date: 2002-02-28
Publication date: 2003-02-12
Anticipated expiration: 2012-02-28

Abstract

An adapter used for the connection of optical fibers is formed through that a sleeve tube and a connecting seat are connected into an integral body, wherein an inner sleeve provided with an intermediate sleeve is connected to the outside of the sleeve tube, the connecting seat is composed of an integral connecting body and a seat body, and the inner sleeve, the connecting body and the seat body are connected into one piece. When in use, two plugs need to be inserted respectively from two ends of the connecting body, then the plugs are fixed in a hollow toroid groove which is formed between the connecting body and the end portion of the inner sleeve, and optical fiber ends which is placed on the plugs and penetrate into the sleeve tube are coupled in the sleeve tube. The sleeve is covered by the intermediate sleeve and the inner sleeve, the bonding area is large, thereby signal conveying errors are not influenced by the shaky movement of lines, the connecting body between the inner sleeve and the intermediate sleeve is a cylindrical body, the seat body is a square block body, thereby the shapes of the connecting body and the seat body are simple and singular, the machining is easy, and the machining precision and assembly precision are insured, when the optical fibers are connected, the plug-in dissipated loss is greatly decreased, and the waste of materials is enormously reduced, meanwhile, the assembly is convenient and fast. The connecting body has an integral structure, by which the concentricity of screw thread at two ends thereof and step cavities is easily guaranteed, consequently, the accuracy of the coupling of optical fiber lines can be reliably guaranteed.

Description

Optical fiber connects the adapter of usefulness

Technical field

The utility model relates to a kind of major part of the joints of optical fibre, promptly in the attachment plug of the two ends of adapter, in order between equipment room in the realization system, equipment and instrument cubicle, equipment and optical fiber, optical fiber fixedlys connected with the impermanency between optical fiber, for a kind of mechanical type continuous type, the optical fiber that can repeat to plug use connects the adapter of usefulness.

Background technology

The joints of optical fibre are basic components of a kind of optical passive component that has a large capacity and a wide range, for guaranteeing that it can normally use, conveying function is good, it is little and repeated to insert loss, exchange that performance is good, the life-span is long, for this requirement to the size of the adapter that matches and quality of fit, concentricity, right alignment all very high.

The patent No. 99238560.1 " a kind of adapter that is used for the optical fiber connection " is though also provide a kind of technical scheme simple in structure, but its critical part still is the assembling counterpart, and hull shape is square on one side, Yi Bian be cylindrical, the waste of part car system rapidoprint is big, cost is high, part assembling trouble, quality of fit requires high, if part processing precision is not high, or cumulative errors are defective, the capital makes light beam generation deflection, can't normally use.

Summary of the invention

Technical problem to be solved in the utility model is: the adapter that provides a kind of optical fiber to connect usefulness, and it is simple in structure, be the easy one-piece construction of assembling, and part is few, easier processing, assembling, cost is low, and can guarantee the accuracy that fibre circuit is coupled reliably.

The utility model solves the problems of the technologies described above the technical scheme that is adopted: optical fiber connects the adapter of usefulness, connecting into integral body by sleeve pipe and Connection Block constitutes, described sleeve pipe also is connected with the interior cover that overlaps in the band outward, described Connection Block is combined by the connector and the pedestal of integral body, and the interior cover of cover is fixedlyed connected with connector, pedestal and is integral in the band.

Compared with prior art, advantage of the present utility model is: owing to adopt the structure that outside sleeve pipe, is with the interior cover that overlaps in the band, and interior cover is longer, be longer than sleeve pipe, in cover, interior cover all is coated on outside the sleeve pipe, bonded area is big, not rocked by circuit and influences the signal transmission error.Again because of in cover, interior cover, connector be right cylinder, pedestal is a packet, simple shape, single, make very easily processing separately, and can guarantee its machining precision such as concentricity, tolerance on fit, and between connector and interior cover and pedestal, middle cover and connector, all adopt clearance fit and wringing fit between axis hole, assembly precision easily guarantees and improves, and inserts loss when optical fiber is connected and greatly reduces.Pedestal in addition, connector is dismountable monolithic construction, and separate machined, dress up one with set screws again, and needed originally to be assembled into whole connector by two halves, its shape is square on one side, Yi Bian be cylindrical, turning processing becomes end circle in addition from the square car of an end, spillage of material is very big, and existing part is few, and shape is single, and waste of material is significantly reduced, economical with materials is more than 70%, thereby production cost is greatly reduced, simultaneously easy to assembly, rapidly, in addition, because of connector is an one-piece construction, easily guarantee the concentricity of two ends screw thread and stepped cavity, from and can guarantee the accuracy of fibre circuit coupling reliably.

Description of drawings

Fig. 1. structural representation of the present utility model;

Fig. 2. the left view of Fig. 1;

Fig. 3. the connector structural representation;

Fig. 4. middle nested structure synoptic diagram;

Fig. 5. interior nested structure synoptic diagram;

Fig. 6. the base structure synoptic diagram;

Fig. 7. the utility model user mode reference diagram.

Embodiment

Embodiment describes in further detail the utility model below in conjunction with accompanying drawing:

Connector (5) is the ladder cylindrical integral of symmetry, two ends are the pipe of band breach, external thread (7), and inside is a ladder cavity, extends to from an end mouth of pipe and holds the mouth of pipe in addition, the minimum place of cavity forms flange (14), and a pair of screw that communicates (12) is arranged on the intermediate cylindrical.

Middle cover (1) is that ladder is cylindrical, and inside is stepped cavity, extends to the other end from an end face, and a pair of inward flange (13) is at one end arranged.

Interior cover (2) is that ladder is cylindrical, and inside is stepped cavity, extends to the other end from an end face, and a pair of inward flange (8) is at one end arranged, and the outer lug (4) of a pair of symmetry is arranged on the intermediate cylindrical.

Pedestal (3) is four jiaos of all square integral body of chamfering, and there is an endoporus (15) centre, the screw (12) that other has a pair of and middle endoporus (15) to communicate.On square face one diagonal line outside the middle endoporus (15) two stepped appearance through holes (11) are arranged.

Sleeve pipe (6) is by the axially grooved tubular that has of pottery or phosphor bronze material one-tenth.

Connector (5), middle cover (1), interior cover (2), pedestal (3) but the processing of car system also can make by zinc or aldary die casting, powder metallurgy pressing sintering and engineering plastics injection mo(u)lding.

Earlier sleeve pipe (6) is pushed in the stepped cavity of interior cover (2) gently, clearance fit links into an integrated entity, and sleeve pipe (6) is shorter in length than interior cover (2) length, and at one end leaves end play, and end is spacing with the inward flange (8) of interior cover (2) one ends in addition.The interior cover (2) that assembles is put in the middle of the cavity of connector (5), internally overlapping (2) start-stop action by flange (14) uses, again middle cover (1) is pressed into the outer surface of interior cover (2) one ends by unit clamp, with connector (5) cavity wringing fit, the inward flange (13) of middle cover (1) one end is spacing to an end of sleeve pipe (6), protecting positive sleeve pipe (6) does not drop out, because of have end play can guarantee again in cover (1) be pressed into Shi Buhui contact, the sleeve pipe (6) of damaging, pedestal (3) is enclosed within on the connector (5), connector (5) cooperates with the endoporus (15) of pedestal (3), pass through two holding screws (10) at last with pedestal (3), connector (5) is fixedly connected in aggregates, the wringing fit of outer lug (4) in utilizing on the cover (2) and middle cover (1) and connector (5) can prevent mutual moving axially and moving radially reliably.

, be fixed on the matrix and just can have used by the ladder hole (11) on its diagonal line with two screws.

Two plugs that at this moment will be connected, respectively from the through hole at connector (5) two ends, insertion is by in the concave ring groove (9) that forms between connector (5) and interior cover (2), middle cover (1) end, and the optical fiber that is installed in the contact pin (17) pierces into coupling in the sleeve pipe (6) by contact pin (17).Utilize the screw thread on the plug body (16) to be connected, make adapter link to each other, as shown in Figure 7 with plug with external thread (7) on the connector (5).

Claims

1. an optical fiber connects the adapter of usefulness, connect into whole formation by sleeve pipe (6) and Connection Block, it is characterized in that the outer interior cover (2) that also is connected with cover (1) in the band of described sleeve pipe (6), described Connection Block is combined by the connector (5) of integral body and pedestal (3), and the interior cover (2) of cover (1) is fixedlyed connected with connector (5), pedestal (3) and is integral in the band.

2. adapter according to claim 1, it is characterized in that the ladder cylindrical integral of connector (5) for symmetry, two ends are the pipe of band breach, external thread (7), inside is a ladder cavity, extend to from an end mouth of pipe and to hold the mouth of pipe in addition, the minimum place of cavity forms flange (14), and a pair of screw that communicates (12) is arranged on the intermediate cylindrical; Pedestal (3) is four jiaos of all square integral body of chamfering, and there is an endoporus (15) centre, on square face one diagonal line outside the screw (12) that other has a pair of and middle endoporus (15) to communicate, middle endoporus (15) two stepped appearance through holes (11) is arranged.

3. adapter according to claim 1 is characterized in that interior cover (2) is cylindrical for ladder, and inside is stepped cavity, extends to the other end from an end face, and a pair of inward flange (8) is at one end arranged, and the outer lug (4) of a pair of symmetry is arranged on the intermediate cylindrical; Middle cover (1) is that ladder is cylindrical, and inside is stepped cavity, extends to the other end from an end face, and a pair of inward flange (13) is at one end arranged.

4. adapter according to claim 1, it is characterized in that sleeve pipe (6) is shorter in length than interior cover (2) length, and clearance fit links into an integrated entity, and at one end leave end play, interior cover (2), pedestal (3) link into an integrated entity with the axis hole clearance fit respectively with connector (5), middle cover (1) is pressed into the outer surface of interior cover (2) one ends, and is with connector (5) cavity wringing fit, by two holding screws (10) that pedestal (3), connector (5) is fixedly connected in aggregates.