CN212569214U

CN212569214U - MT type outdoor optical fiber connector

Info

Publication number: CN212569214U
Application number: CN202021605411.0U
Authority: CN
Inventors: 郭文礼
Original assignee: Hubei Telian Photoelectric Technology Co ltd
Current assignee: Hubei Telian Photoelectric Technology Co ltd
Priority date: 2020-08-05
Filing date: 2020-08-05
Publication date: 2021-02-19
Anticipated expiration: 2030-08-05

Abstract

The utility model discloses an outdoor fiber connector of MT type relates to optical fiber connection technical field. Including the front end be equipped with the casing of link, be equipped with MT attach fitting in the link, still be equipped with location structure on the link and aim at the location when making MT attach fitting blind plug, its characterized in that: the anti-skidding fiber connector comprises a shell, a connecting end, an extension bar, an anti-skidding thread and external optical fibers, wherein the shell is internally provided with a shell inner step, the connecting end is tightly matched in the shell through the adaptive step, the rear end of the shell is fixedly provided with a main body baffle, the rear part of the main body baffle is fixedly connected with the extension bar, the tail end of the extension bar is internally provided with the anti-skidding thread, and the external optical fibers; and a sealing ring is also arranged at the connecting end of the shell and the external case. The utility model discloses a can be waterproof, antifog, dustproof, stretch-proofing and can accurate fiber connector of counterpointing when connecting.

Description

MT type outdoor optical fiber connector

Technical Field

The utility model relates to a fiber connector technical field especially relates to an outdoor fiber connector of MT type.

Background

The optical fiber connector is used for coupling connection between optical fibers or between the optical fibers and an external case.

The existing mpo (multi Push on) connector is a multi-core multi-channel plug connector. It is characterized by that it uses a rectangular insertion core whose nominal length is 6.4mm x 2.5mm, and utilizes the guide holes whose left and right diameters are 0.7mm on the end face of insertion core and guide pin to make positioning and centering. Because the existing mpo connectors are all plastic shells, the performances of dust prevention, compression resistance, tensile resistance, water resistance, salt mist resistance and the like under outdoor severe environment cannot be met, so that the requirements of outdoor use cannot be met, and the connectors are easy to damage in the transportation and installation processes.

Therefore, in order to solve the above technical problem, a new technical solution needs to be proposed to solve the problem. And more particularly to an MT-style outdoor fiber optic connector.

Disclosure of Invention

The utility model discloses a solve the present MPO fiber connector in market can not satisfy the working condition under outdoor adverse circumstances of stretch-proofing and waterproof, dirt resistance, provide an outdoor fiber connector of MT type that dustproof, resistance to compression, waterproof, stretch-proofing performance are good.

The following technical scheme is provided for achieving the purpose: an MT type outdoor optical fiber connector comprises a shell, wherein the front end of the shell is provided with a connecting end, an MT inserting core is arranged in the connecting end, the connecting end is also provided with a positioning structure, so that the connector can be inserted and positioned in a blind manner when being connected, a step in the shell is arranged in the shell, a main body is assembled in the shell in a limiting mode through the step, the rear end of the shell is fixedly provided with a main body baffle, the main body baffle and the main body are assembled in a positioning mode through a pin, an extension rod is connected behind the main body baffle, anti-skidding threads are arranged in the tail end of the extension rod, and external optical fibers are fixedly connected with; the outer sleeve of the extension bar is provided with a check ring which plays a role in fixing the extension bar and preventing the main body from withdrawing from the shell; and a sealing ring is also arranged at the connecting end of the shell and the external case.

Preferably, the housing comprises a socket body housing and a plug body housing; a reset spring is arranged between the connecting end and the main body baffle, and the connecting end comprises a socket main body tightly matched in the socket main body shell and a plug main body tightly matched in the plug main body shell; the socket main body is internally provided with a socket end MT inserting core with a guide pin, and the plug main body is internally provided with a plug end MT inserting core with a guide pin hole; the plug main body shell is also provided with a threaded ring with internal threads, and the socket main body shell is provided with external threads.

Preferably, the plug main body shell is provided with a positioning groove, and the socket main body shell is internally provided with a positioning pin.

Preferably, a sealing ring is further arranged at the joint of the plug main body shell and the socket main body shell.

Preferably, a sealing ring is arranged on the connecting surface of the socket main body shell and the case.

Preferably, the shell and the main body baffle are connected in an anti-rotation mode through an opening and a boss, the main body baffle is connected with the extension rod in an anti-rotation mode through an opening and a boss, a check ring is further arranged outside the main body baffle, and one end of the check ring is in threaded connection with the shell, while the other end of the check ring is in compression connection with the extension rod.

Preferably, a first anti-rotation boss and a second anti-rotation boss are arranged on two sides of the main body baffle, and a first shell opening and a second shell opening corresponding to the first anti-rotation boss and the second anti-rotation boss are arranged on the shell; the extension bar is provided with a first extension bar opening and a second extension bar opening which correspond to the first anti-rotation boss and the second anti-rotation boss; the first anti-rotation boss is composed of two parts, the middle of the two parts is provided with an opening, and the second anti-rotation boss is designed in an integrated mode.

Preferably, the shell is also connected with a dustproof cap, and the dustproof cap is connected with one side of the shell, which is provided with the connecting end, through threads; the dustproof cap is made of stainless steel materials.

Preferably, the retainer ring, the housing, the threaded ring and the extension bar are made of metal materials.

Preferably, the retaining ring and the extension bar are also provided with rubber sleeves in a tight fit manner.

The utility model has the advantages that: the utility model discloses a set up the constant head tank in fiber connector's plug main body shell, set up the locating pin in the socket main body shell, only can link together after the alignment of plug end MT lock pin in the plug main body shell and the socket end MT lock pin in the socket main body shell when blind plug connects fiber connector, and through threaded ring with plug main body shell and socket main body shell threaded connection, be equipped with the sealing washer between plug main body shell and socket main body shell simultaneously, can effectively play the inside MT lock pin of protection, play dustproof, waterproof, antifog etc. effect. The tail end at fiber connector sets up the extension bar of integral type, and the optic fibre of protection junction still sets up interior anti-skidding screw thread in extension bar inside simultaneously, and the tail end of extension bar is connected optic fibre crimping to the installation through mechanical pressfitting during the installation, makes the optic fibre of junction firmly can not become flexible, stretch-proofing when installation or the tensile optic fibre in the course of the work. The stainless steel material designed as the external material of the optical fiber connector can be applied to severe environments such as outdoor optical fiber communication, remote communication base stations, intelligent substations, military communication equipment, railway signal control, mines and the like. The dustproof cap can be screwed on the end part when the end part is not used, and the function of protecting the MT insertion core inside is achieved.

Drawings

Fig. 1 is a schematic diagram of the explosion structure of the present invention.

Fig. 2 is a schematic view of the overall structure of the present invention during assembly.

Fig. 3 is a schematic sectional view of the present invention during assembly.

Fig. 4 is a schematic sectional view of the plug connection end of the present invention.

Fig. 5 is a schematic sectional view of the socket connection end of the present invention.

Fig. 6 is a schematic view of the connection structure of the internal components of the plug connection end of the present invention.

Fig. 7 is a schematic view of the connection structure of the internal components of the socket connection terminal of the present invention.

Fig. 8 is a schematic structural diagram of the plug main body of the present invention.

Fig. 9 is a schematic structural diagram of the socket main body of the present invention.

Fig. 10 is a schematic structural diagram of the plug dust cap of the present invention.

Fig. 11 is a schematic structural diagram of the plug dust cap of the present invention.

Wherein: 11. a plug end MT insertion core; 12. a plug main body; 13. a plug main body housing; 131. positioning a groove; 14. a plug dust cap; 21. a receptacle-end MT core; 22. a socket main body; 23. a socket main body housing; 231. positioning pins; 232. a seal ring; 24. a socket dust tube; 3. a threaded ring; 4. a main body baffle; 41. a first anti-rotation boss; 42. a second anti-rotation boss; 5. a retainer ring; 6. lengthening a rod; 61. anti-skid threads; 7. and (4) a rubber sleeve.

Detailed Description

The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. 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.

In the description of the present invention, it should be noted that the directions or positional relationships indicated as the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., appear based on the directions or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and thus, should not be construed as limiting the present invention. The upper part, the lower part, etc. belong to the position description when the utility model is in the use state. Furthermore, the terms "first," "second," and "third" as appearing herein are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" should be interpreted broadly, e.g., as being either fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

As shown in fig. 1 and 2, an MT-type outdoor optical fiber connector includes a housing having a connection end at the front end, an MT ferrule is provided in the connection end, a positioning structure is further provided on the connection end to align and position the MT ferrule during blind plugging, a housing inner step is provided in the housing, the connection end is tightly fitted in the housing through the adaptation step, a main body baffle 4 is fastened at the rear end of the housing, an extension bar 6 is fastened and connected to the rear end of the main body baffle 4, an anti-slip thread 61 is provided in the tail end of the extension bar 6, and an external optical fiber is fastened and connected to the anti-slip thread 61 through mechanical press-fitting. The connecting end of the shell and the external case is also provided with a sealing ring 232, and a rubber sleeve 7 is arranged outside the main body baffle and the extension bar. The main body baffle 4, the extension bar 6 and the rubber sleeve 7 at the two ends of the optical fiber connector are symmetrically designed. The link passes through the spacing restriction of step in the casing, can prevent the removal of link axial and radial two directions in the casing to can protect inside optic fibre can not take place when the external world of fiber connector vibrates and move from top to bottom or front and back, guarantee the accurate connection of optic fibre of junction.

As shown in fig. 3, 4 and 5, the housing includes a socket main body housing 23 and a plug main body housing 13; a return spring is arranged between the connecting end and the main body baffle 4, and the connecting end comprises a socket main body 22 tightly matched in a socket main body shell 23 and a plug main body 12 tightly matched in a plug main body shell 13; a socket end MT insertion core 21 with a guide pin is arranged in the socket main body 22, and a plug end MT insertion core 11 with a guide pin hole is arranged in the plug main body 12; the plug main body shell 13 is also provided with a threaded ring 3 with internal threads, and the socket main body shell 23 is provided with external threads. When the plug is connected in a matched mode, the socket main body shell 23 surrounds the plug main body shell 13, the socket end MT insertion core 21 can be accurately inserted and connected with the plug end MT insertion core 11 after being aligned through the socket main body shell 23 and the positioning structures in the plug main body shell 13, the threaded ring 3 on the plug main body shell 13 is used for tightly connecting the socket end MT insertion core 21 and the plug end MT insertion core 11, the connecting structure can well protect the internal MT insertion core, and the plug main body shell has the functions of water proofing, dust proofing and the like. The MT core insert adopts a conventional core insert, can select 12 cores and can also select 24 cores, and is not described in detail herein.

A sealing ring 232 is further arranged at the joint of the plug main body shell 13 and the socket main body shell 23, and the sealing ring 232 is arranged on the joint surface of the socket main body shell 23 and the case. A sealing ring 232 is arranged at a gap between the plug main body shell and the socket main body shell to prevent external moisture, mist or dust and the like from entering the optical fiber connector.

As shown in fig. 8 and 9, the plug main body casing 13 is provided with a positioning groove 131, the socket main body casing 23 is provided with a positioning pin 231 therein, and the positioning pin 231 is disposed on the inner wall of the socket main body casing 23 and can be engaged with the positioning groove. The positioning pins can move back and forth in the positioning grooves to connect or disconnect the plug main body housing 13 and the socket main body housing 23 to each other. The location slightly adopts the position structure different from prior art, sets up it on the inner wall of socket main part shell 23 rather than the socket main part, can make both separately play a role, and can not influence each other at the during operation, keeps away from the MT lock pin simultaneously, has guaranteed the safety of lock pin when playing limit function.

As shown in fig. 6 and 7, the housing is connected to the main body baffle 4 through an opening and a boss, the main body baffle 4 is connected to the extension bar 6 through an opening and a boss, a retainer ring 5 is further provided outside the main body baffle 4, one end of the retainer ring 5 is connected to the housing through a thread, and the other end is connected to the extension bar 6 through a pressing, preferably a mechanical pressing. The concrete connection structure is as follows: a first anti-rotation boss 41 and a second anti-rotation boss 42 are arranged on two sides of the main body baffle 4, and a first shell opening and a second shell opening corresponding to the first anti-rotation boss 41 and the second anti-rotation boss 42 are arranged on the shell; the extension bar 6 is provided with a first extension bar opening and a second extension bar opening corresponding to the first anti-rotation boss 41 and the second anti-rotation boss 42; the first anti-rotation boss 41 is composed of two parts with an opening in the middle, and the second anti-rotation boss 42 is designed in an integrated mode. The boss of main part baffle 4 mutually supports with the recess that sets up on casing and the extension bar, makes the main part baffle by the restriction between casing and extension bar for connect extension bar and casing, the link in main part baffle and the casing includes still is equipped with reset spring between plug main part and socket main part simultaneously, can not hard conflict when making plug end MT lock pin and socket end MT lock pin be connected, prevents that inside optic fibre from being damaged. On the socket main body shell, a sealing ring 232 is further arranged at the joint of the socket main body shell and the retainer ring and used for preventing external moisture or dust from entering the optical fiber connector.

As shown in fig. 10 and 11, the shell is further connected with a dust cap, and the dust cap is connected with one side of the shell, which is provided with the connecting end, through threads; the dust cap is made of metal materials. The dust cap includes a plug dust cap 14 screwed with the plug main body housing 13 and a receptacle dust cap 24 screwed with the receptacle main body housing 23. When plug main body shell and socket main body shell are connected at ordinary times, dustproof cap can take off and reach dustproof, waterproof through dustproof cap when the link of both sides does not have interconnect, prevents the function of inside spare part damage.

The parts of the shell, the check ring 5, the threaded ring 3 and the extension rod 6 in the parts are made of metal materials, preferably stainless metal materials, due to the fact that the parts are in contact with the outside, and firmness of products is improved. The internal parts of the optical fiber connector, such as the plug body and the socket body, are made of conventional materials.

The utility model discloses a with fiber connector's connector department and connector and external quick-witted case junction add the sealing washer, realize waterproof, purpose such as dustproof, set up the extension bar of integral type at fiber connector's tail end simultaneously to the connected mode through the mutual pressfitting of each part realizes waterproof, dirt-proof effect, is equipped with anti-skidding screw thread in the afterbody of extension bar, is connected optic fibre and extension bar through mechanical pressfitting during the connection, can play the effect of anti-stretching. Simultaneously with fiber connector and external contact's material set up to stainless steel material and add the gum cover in the outside of retaining ring and extension bar, increase the protection and can be in the outdoor function that uses under the adverse circumstances.

The above embodiments are only used for illustrating the present invention, and not for limiting the present invention, and those skilled in the relevant technical field can make various changes and modifications without departing from the spirit and scope of the present invention, so that all equivalent technical solutions also belong to the scope of the present invention, and the protection scope of the present invention should be defined by the claims.

Claims

1. The utility model provides an outdoor fiber connector of MT type, includes that the front end is equipped with the casing of link, be equipped with the MT lock pin in the link, still be equipped with location structure on the link and aim at the location when making MT lock pin blind plug, its characterized in that: the anti-skidding fiber connector is characterized in that a shell inner step is arranged in the shell, the connecting end is tightly matched in the shell through the adaptive step, a main body baffle plate (4) is fixedly arranged at the rear end of the shell, an extension bar (6) is fixedly connected behind the main body baffle plate (4), anti-skidding threads (61) are arranged in the tail end of the extension bar (6), and external optical fibers are fixedly connected with the anti-skidding threads (61) through mechanical pressing; and a sealing ring (232) is also arranged at the connecting end of the shell and the external case.

2. An MT-type outdoor optical fiber connector according to claim 1, wherein: the housing includes a socket body housing (23) and a plug body housing (13); a return spring is arranged between the connecting end and the main body baffle (4), and the connecting end comprises a socket main body (22) tightly matched in a socket main body shell (23) and a plug main body (12) tightly matched in a plug main body shell (13); a socket end MT inserting core (21) with a guide pin is arranged in the socket main body (22), and a plug end MT inserting core (11) with a guide pin hole is arranged in the plug main body (12); the plug main body shell (13) is further provided with a threaded ring (3) with internal threads, and the socket main body shell (23) is provided with external threads.

3. An MT-type outdoor optical fiber connector according to claim 2, wherein: be equipped with constant head tank (131) on plug main body cover (13), be equipped with locating pin (231) in socket main body cover (23).

4. An MT-type outdoor optical fiber connector according to claim 2, wherein: and a sealing ring (232) is further arranged at the joint of the plug main body shell (13) and the socket main body shell (23).

5. An MT-type outdoor optical fiber connector according to claim 2, wherein: and a sealing ring (232) is arranged on the connecting surface of the socket main body shell (23) and the case.

6. An MT-type outdoor optical fiber connector according to claim 1 or 2, wherein: the casing with main part baffle (4) are prevented through opening and boss and are prevented changeing the connection, main part baffle (4) with extension bar (6) are prevented changeing the connection through opening and boss, main part baffle (4) still are equipped with retaining ring (5) outward, retaining ring (5) still are equipped with sealing washer (232) with the casing junction, retaining ring (5) one end and casing threaded connection other end with extension bar (6) compress tightly the connection.

7. An MT-type outdoor optical fiber connector according to claim 6, wherein: a first anti-rotation boss (41) and a second anti-rotation boss (42) are arranged on two sides of the main body baffle (4), and a first shell opening and a second shell opening which correspond to the first anti-rotation boss (41) and the second anti-rotation boss (42) are formed in the shell; the extension bar (6) is provided with a first extension bar opening and a second extension bar opening which correspond to the first anti-rotation lug boss (41) and the second anti-rotation lug boss (42); the first anti-rotation boss (41) is composed of two parts with an opening in the middle, and the second anti-rotation boss (42) is designed in an integrated mode.

8. An MT-type outdoor optical fiber connector according to claim 1, wherein: the shell is also connected with a dustproof cap, and the dustproof cap is connected with one side of the shell, which is provided with a connecting end, through threads; the dustproof cap is made of stainless steel materials.

9. An MT-type outdoor optical fiber connector according to claim 6, wherein: the retainer ring (5), the shell, the threaded ring (3) and the extension bar (6) are made of metal materials.

10. An MT-type outdoor optical fiber connector according to claim 6, wherein: the retaining ring (5) and the extension bar (6) are also provided with a rubber sleeve (7) in a tight fit manner.