CN212410903U - Phi 2.5 standard optical fiber contact body - Google Patents
Phi 2.5 standard optical fiber contact body Download PDFInfo
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- CN212410903U CN212410903U CN202021133658.7U CN202021133658U CN212410903U CN 212410903 U CN212410903 U CN 212410903U CN 202021133658 U CN202021133658 U CN 202021133658U CN 212410903 U CN212410903 U CN 212410903U
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Abstract
The utility model discloses a phi 2.5 standard type optical fiber contact has solved current optical fiber contact lock pin and spring and can not dismantle to the problem that butt joint length can not be guaranteed during the butt joint. The optical fiber contact body comprises a phi 2.5 standard ferrule, a spring, a front shell, a rear shell and a crimping sleeve. The utility model discloses optical fiber contact possesses can dismantle the function, and can guarantee butt joint length, can realize the transmission of the interior optical signal of circular series fiber connector.
Description
Technical Field
The utility model belongs to the technical field of the optical fiber contact body, a phi 2.5 standard form optical fiber contact body is provided very much.
Background
In order to realize the optical fiber contact body conforming to the phi 2.5 standard ferrule, which is used for transmitting optical signals of a circular optical fiber connector, the existing optical fiber contact body ferrule and the spring cannot be disassembled, and the butt joint length cannot be ensured during butt joint, so that the phi 2.5 standard optical fiber contact body which has a detachable function and can ensure the butt joint length needs to be developed.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem, the utility model aims at providing a phi 2.5 standard type optical fiber contact body, this optical fiber contact body possess can dismantle the function, and can guarantee butt joint length, can realize the transmission of optical signal in the circular series optical fiber connector.
In order to achieve the above purpose, the utility model adopts the following technical scheme: a phi 2.5 standard optical fiber contact body comprises a phi 2.5 standard ferrule, a spring, a front shell, a rear shell and a crimping sleeve; the periphery of the phi 2.5 standard insertion core is sleeved with a spring, the front shell and the rear shell are connected through threads, the front end of the front shell is provided with a closing structure, the phi 2.5 standard insertion core and the spring are axially limited and fixed in the rear shell, and the periphery of the tail end of the rear shell is provided with a crimping sleeve.
Further, the phi 2.5 standard ferrule comprises a phi 2.5 ceramic ferrule and a metal support, the metal support comprises a hollow cylindrical sleeve and a first annular boss, the hollow cylindrical sleeve comprises a large-diameter cylindrical section and a small-diameter cylindrical section, a large-diameter inner hole and a small-diameter inner hole are arranged in the hollow cylindrical sleeve, one end of the phi 2.5 ceramic ferrule is axially arranged in the large-diameter inner hole for fixation, a first annular boss is arranged on the periphery of the front end of the large-diameter cylindrical section, rectangular notches are symmetrically arranged on the first annular boss in a pairwise manner along the circumferential direction, the spring is sleeved on the periphery of the large-diameter cylindrical section, and one end of the spring abuts against the flat end face of the first annular boss.
Further, the procapsid includes first hollow cylinder body, the front end of first hollow cylinder body inwards extends along the circumference and forms ring form binding off structure, and is equipped with the internal thread in the inner periphery of first hollow cylinder body.
Further, the rear shell comprises a second hollow cylinder body, external threads are arranged on the periphery of the front end of the second hollow cylinder body, positioning keys protruding outwards are symmetrically arranged on the rear end of the external threads, a plurality of annular grooves arranged in parallel are arranged on the periphery of the tail end of the second hollow cylinder body, and a stepped inner hole is formed in the second hollow cylinder body.
Compared with the prior art, the utility model discloses following beneficial effect has: the utility model discloses in the optical fiber contact body was used for HY series circular product, the product accorded with general phi 2.5 lock pin standard, can realize the elasticity butt joint, and through the flexible contact length who guarantees the contact of spring, guarantee optical signal's insertion loss and return loss, finally realize the complete transmission of signal. The utility model discloses a lock pin and spring can be dismantled, make phi 2.5 standard lock pin more convenient at butt joint test and product change, make things convenient for follow-up product maintenance, have reduced product cost, have increased product life.
Drawings
Fig. 1 is a schematic structural diagram of the present invention;
FIG. 2 is a left side view of FIG. 1;
FIG. 3 is a schematic view of the half-section configuration of FIG. 1;
FIG. 4 is a schematic structural diagram of a standard ferrule of Φ 2.5;
FIG. 5 is a left side view of FIG. 4;
in the figure: 1-phi 2.5 standard insertion core; 1-1-phi 2.5 ceramic ferrule; 1-2-metal holder; 1-2-1-hollow cylindrical sleeve; 1-2-2-a first annular boss; 1-2-1-1-major diameter cylindrical section; 1-2-1-2-small diameter cylindrical section; 1-2-1-3-large diameter inner bore; 1-2-1-4-small diameter inner bore; 2-a spring; 3-a front housing; 3-1-a first hollow cylindrical body; 3-1-1-internal threads; 3-2-circular ring-shaped closing-up structure;
4-a rear housing; 4-1-a second hollow cylindrical body; 4-1-1-external threads; 4-1-2-position bond; 4-1-4-annular groove; 4-1-5-stepped inner holes; 5-crimping the sleeve.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1-5, a Φ 2.5 standard optical fiber contact comprises a Φ 2.5 standard ferrule 1, a spring 2, a front housing 3, a rear housing 4, and a crimp sleeve 5; the periphery of the phi 2.5 standard ferrule 1 is sleeved with a spring 2, the front shell 3 is in threaded connection with the rear shell 4, the front end of the front shell 3 is provided with a closing structure, the phi 2.5 standard ferrule 1 and the spring 2 are axially limited and fixed inside the rear shell 4, and the periphery of the tail end of the rear shell 4 is provided with a crimping sleeve 5.
The phi 2.5 standard ferrule 1 comprises a phi 2.5 ceramic ferrule 1-1 and a metal holder 1-2, the metal holder 1-2 comprises a hollow cylindrical sleeve 1-2-1 and a first annular boss 1-2-2, the hollow cylindrical sleeve 1-2-1 comprises a large-diameter cylindrical section 1-2-1-1 and a small-diameter cylindrical section 1-2-1-2, a large-diameter inner hole 1-2-1-3 and a small-diameter inner hole 1-2-1-4 are arranged in the hollow cylindrical sleeve 1-2-1, one end of the phi 2.5 ceramic ferrule 1-1 is axially arranged in the large-diameter inner hole 1-2-1-3 for fixation, the first annular boss 1-2-2 is arranged on the periphery of the front end of the large-diameter cylindrical section 1-2-1-1, rectangular notches 1-2-2-1 are symmetrically arranged on the first annular boss 1-2-2 in pairs along the circumferential direction, the spring 2 is sleeved on the periphery of the large-diameter cylindrical section 1-2-1-1, and one end of the spring abuts against the flat end face of the first annular boss 1-2-2.
The front shell 3 comprises a first hollow cylinder body 3-1, the front end of the first hollow cylinder body 3-1 extends inwards along the circumference to form a circular ring-shaped closing-up structure 3-2, and internal threads 3-1-1 are arranged on the inner circumference of the first hollow cylinder body 3-1.
The rear shell 4 comprises a second hollow cylinder body 4-1, external threads 4-1-1 are arranged on the periphery of the front end of the second hollow cylinder body 4-1, outwards protruding positioning keys 4-1-2 are symmetrically arranged at the rear end of the external threads 4-1-1, a plurality of annular grooves 4-1-4 arranged in parallel are arranged on the periphery of the tail end of the second hollow cylinder body 4-1, and stepped inner holes 4-1-5 are formed in the second hollow cylinder body 4-1.
During assembly, firstly installing a phi 2.5 standard ferrule 1, specifically, integrally molding and fixing a phi 2.5 ceramic ferrule 1-1 and a metal support 1-2 through a mold, then sleeving a spring 2 on the periphery of a large-diameter cylindrical section 1-2-1 of a hollow cylindrical sleeve 1-2-1 of the metal support 1-2, and abutting one end of the spring against the flat end face of a first annular boss 1-2-2; and then the front end of the phi 2.5 ceramic ferrule 1-1 penetrates out of the annular closing-in structure 3-2 of the front shell 3, the front end face of the first annular boss 1-2-2 of the metal support 2 abuts against the inner end face of the annular closing-in structure 3-2, and the front shell 3 and the rear shell 4 are fixed through matching connection of the internal thread 3-1-1 and the external thread 4-1-1, so that the tail end of the phi 2.5 standard ferrule 1 and the spring 2 are placed in an inner hole with a larger diameter in the stepped inner holes 4-1-5 of the rear shell 4. The crimping sleeve 5 is used for placing a wire skin of a wire between the outer periphery of the tail end of the rear shell 4 with the annular groove 4-1-4 and the inner periphery of the crimping sleeve 5 when the optical fiber contact body is connected with the wire, and then the rear shell 4, the wire skin and the crimping sleeve 5 are fixed in an interference crimping mode through crimping pliers.
This special optic fibre contact of circular product, through the flexible contact length who guarantees the contact of spring, guarantees optical signal's insertion loss and return loss, finally realizes the complete transmission of signal, can realize the optical signal transmission between the circular connector, and the loss of like product is about 2dB among the prior art, the utility model discloses the product can reduce the loss to 0.3dB after the institutional advancement. Meanwhile, the detachable optical fiber connector has the detachable function, the subsequent product maintenance is facilitated, the product cost is reduced, the service life of the product is prolonged, the successful development of the product enables the transmission of the internal optical signals of the rectangular connector to be promoted in a large area, the signal transmission with high frequency band, high capacity, strong anti-interference performance and good confidentiality of the signals is realized, the superiority of the movable optical fiber connector is fully exerted, and the foundation is laid for the optical fiber connector in the fields of communication industry, high-density sealing integration industry and high-speed data transmission.
The principle and the implementation of the present invention are explained herein by using specific examples, and the above description of the embodiments is only used to help understand the method and the core idea of the present invention; meanwhile, for the general technical personnel in the field, according to the idea of the present invention, there are changes in the concrete implementation and the application scope. In summary, the content of the present specification should not be construed as a limitation of the present invention.
Claims (4)
1. A phi 2.5 standard type optical fiber contact body is characterized by comprising a phi 2.5 standard ferrule, a spring, a front shell, a rear shell and a crimping sleeve; the periphery of the phi 2.5 standard insertion core is sleeved with a spring, the front shell and the rear shell are connected through threads, the front end of the front shell is provided with a closing structure, the phi 2.5 standard insertion core and the spring are axially limited and fixed in the rear shell, and the periphery of the tail end of the rear shell is provided with a crimping sleeve.
2. The Φ 2.5 standard-type optical fiber contact body according to claim 1, wherein the Φ 2.5 standard ferrule comprises a Φ 2.5 ferrule and a metal holder, the metal holder comprises a hollow cylindrical sleeve and a first annular boss, the hollow cylindrical sleeve comprises a large-diameter cylindrical section and a small-diameter cylindrical section, a large-diameter inner hole and a small-diameter inner hole are arranged in the hollow cylindrical sleeve, one end of the Φ 2.5 ferrule is axially arranged in the large-diameter inner hole for fixation, the first annular boss is arranged on the periphery of the front end of the large-diameter cylindrical section, rectangular notches are symmetrically arranged on the first annular boss in a pairwise manner along the circumferential direction, the spring is sleeved on the periphery of the large-diameter cylindrical section, and one end of the spring abuts against the flat end face of the first annular boss.
3. A Φ 2.5 standard optical fiber contact according to claim 1, wherein said front housing comprises a first hollow cylinder body, the front end of said first hollow cylinder body extends inwards along the circumference to form a circular ring-shaped closing-in structure, and the inner circumference of said first hollow cylinder body is provided with internal threads.
4. A Φ 2.5 standard type optical fiber contact body according to claim 1, wherein said rear housing comprises a second hollow cylindrical body, said second hollow cylindrical body has an external thread formed on the outer circumference of the front end thereof, and a positioning key protruding outward is symmetrically formed on the rear end of the external thread, a plurality of annular grooves are formed on the outer circumference of the rear end of the second hollow cylindrical body in parallel, and a stepped inner hole is formed in the interior of the second hollow cylindrical body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021133658.7U CN212410903U (en) | 2020-06-18 | 2020-06-18 | Phi 2.5 standard optical fiber contact body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021133658.7U CN212410903U (en) | 2020-06-18 | 2020-06-18 | Phi 2.5 standard optical fiber contact body |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212410903U true CN212410903U (en) | 2021-01-26 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021133658.7U Active CN212410903U (en) | 2020-06-18 | 2020-06-18 | Phi 2.5 standard optical fiber contact body |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212410903U (en) |
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2020
- 2020-06-18 CN CN202021133658.7U patent/CN212410903U/en active Active
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