CN219609287U - Optical fiber pre-termination plug and optical fiber pre-termination adapter - Google Patents

Abstract

The utility model discloses an optical fiber pre-termination plug and an optical fiber pre-termination adapter, which comprise an optical fiber pre-termination connector assembly A, an optical fiber pre-termination connector assembly B and an optical fiber pre-termination adapter, wherein the optical fiber pre-termination connector assembly A comprises a rubber-covered wire optical fiber, the surface of the rubber-covered wire optical fiber is sleeved with a main body A, the optical fiber pre-termination connector assembly B comprises a main body of the adapter, the inside of the main body of the adapter is provided with a ceramic sleeve, the surface of the ceramic sleeve is sleeved with an inner core of the adapter, a jumper wire manufactured by the optical fiber pre-termination connector assembly B is directly abutted with the optical fiber pre-termination adapter, an operator can judge whether the assembly is correct according to hand feeling, so that blind assembly is realized, the optical fiber pre-termination adapter is subjected to waterproof treatment, poor contact caused by air humidity is avoided, and the external thread pipe on the surface of a nut A can be abutted and matched with the optical fiber pre-termination adapters of different manufacturers, and the universality is better.

Description

Optical fiber pre-termination plug and optical fiber pre-termination adapter

Technical Field

The utility model relates to the technical field of optical fibers, in particular to an optical fiber pre-termination plug and an optical fiber pre-termination adapter.

Background

In order to reduce the operation difficulty of the laying process of the cable at the home entrance section of the fiber-to-the-home network, the industry adopts the fiber pre-connection product to realize the connection of the home entrance fiber with the fiber splitting box and the user terminal box.

In the related art, optical fiber connectors are made at two ends of a home optical cable in an optical fiber pre-connection product, and optical fiber adapters matched with the optical fiber connectors are also made on a corresponding fiber distribution box and a corresponding user terminal box. In the laying process of the cable at the home-entry section, the optical fiber connectors at the two ends of the home-entry optical cable are only required to be inserted into the corresponding fiber distribution boxes and the optical fiber adapters on the user terminal box.

However, in order to improve the connection stability of the conventional optical fiber connector and the optical fiber adapter, the conventional optical fiber connector and the optical fiber adapter are locked by using a threaded connection structure, the optical fiber connector is required to rotate for a plurality of circles in the locking and disassembling process, the operation is troublesome, the locking is not in place and is easy to loosen due to insufficient manual tightening force of an operator, the connection reliability between the optical fiber connector and the optical fiber adapter is poor, and the optical cable is easy to twist due to the threaded fastening connection mode, so that the optical fiber attenuation is increased or fiber breakage is caused.

Disclosure of Invention

The present utility model is directed to an optical fiber pre-terminated plug and an optical fiber pre-terminated adapter, which solve the problems set forth in the background art.

In order to achieve the above purpose, the present utility model provides the following technical solutions: an optical fiber pre-terminated plug comprises an optical fiber pre-terminated connector assembly A,

the optical fiber pre-terminated connector assembly A comprises a rubber-insulated wire optical fiber, wherein the surface of the rubber-insulated wire optical fiber is sleeved with a main body A, the right end of the rubber-insulated wire optical fiber is provided with a ceramic ferrule, the surface of the ceramic ferrule is sleeved with a spring A and an inner main body, the surface of the inner main body is provided with a ferrule protecting sleeve, the left end of the inner main body is provided with a crimping ring for fixing the inner main body and the rubber-insulated wire optical fiber, the main body A is in butt joint with the inner main body, and the left end of the main body A is provided with a nut A;

the waterproof cap A is sleeved on the surface of the main body A;

an optical fiber pre-terminated connector assembly B, the optical fiber pre-terminated connector assembly B comprising:

the main body sheath A, main body sheath A cup joints at nut A right-hand member, main body sheath A is equipped with the step, and the step surface cup joints pull ring A, main body sheath A cup joints the inside spring B that is located pull ring A, pull ring A right-hand member cup joints waterproof cap B, main body sheath A surface is equipped with the draw-in groove, and the draw-in groove middle part has the draw-in bar that flushes with main body sheath A.

Preferably, the rubber-insulated wire optical fiber surface is sleeved with the heat shrinkage tube A, the surface of the heat shrinkage tube A is sleeved with the tail cap A, and the right end of the tail cap A is positioned in the nut A.

Preferably, the right side of the surface of the main body A is sleeved with a waterproof sealing ring A, and a clamp spring is arranged at the joint of the main body A and the inner main body.

Preferably, the right end of the ceramic ferrule is sleeved with a dustproof sheath, and the left end of the tail cap A and the right end of the waterproof cap A are both provided with connecting strips A.

Preferably, the clamping grooves are arranged in three groups, the three groups of clamping grooves are annularly arranged on the surface of the main body sheath A, and the right end of the main body sheath A is sleeved with the waterproof sealing ring B.

Preferably, the optical fiber pre-terminated connector assembly B further comprises a waterproof cap B, and the waterproof cap B is sleeved at the right end of the pull ring a.

Preferably, a nut B is screwed at the left end of the main body sheath A, and a brace A is arranged on the surface of the pull ring A.

The utility model provides an optical fiber pre-termination adapter matched with an optical fiber pre-termination plug, which comprises an adapter main body, wherein three groups of buckles are arranged on the inner wall of the left side of the adapter main body, the buckles are L-shaped, a ceramic sleeve is arranged in the adapter main body, an adapter inner core and a dust plug are sleeved on the surface of the ceramic sleeve, and a nut C is screwed on the right end of the adapter main body.

Preferably, the optical fiber pre-terminated adapter further comprises an adapter dustproof cap A, wherein a spring C and a waterproof sealing ring C are respectively sleeved on the surface and the right end of the adapter dustproof cap A, and a pull ring B is sleeved on the left side of the surface of the adapter dustproof cap A.

Preferably, a brace B is arranged on the surface of the pull ring B, and connecting strips B are arranged at the right end of the adapter main body and the left end of the adapter dustproof cap A.

Compared with the prior art, the utility model has the beneficial effects that: the utility model uses the optical fiber pre-termination adapter, can be installed outside the optical cable distribution box, and the distribution box does not need to be opened every time when the optical fiber is opened by a user, and only the jumper wire manufactured by the optical fiber pre-termination connector assembly B is in butt joint with the optical fiber pre-termination adapter, so that the installation is quick and convenient;

the L-shaped buckle is matched with the clamping groove on the surface of the main body sheath A, the clamping rod is used for supporting the buckle, the buckle is clamped into the clamping groove after passing over the clamping rod, feedback handfeel can occur after the assembly is completed, an operator can judge whether the assembly is correct or not according to the handfeel, so that blind assembly is realized, inconvenience caused by a traditional installation mode is avoided, the trouble that an optical cable distribution box is opened every time when an optical fiber arrives at home and unnecessary troubles such as damage to other cables caused by improper operation of opening the optical cable distribution box are solved by utilizing an inserting mode, a jumper wire manufactured by the optical fiber pre-termination connector assembly B is prefabricated, the problem that the optical fiber signal attenuation is influenced by field manufacturing of workers is solved Du Jue, the optical fiber signal quality is improved, the construction progress and the working efficiency are accelerated, and the optical fiber-to-home installation cost is reduced;

the external threaded pipe on the surface of the nut A can be used for butt-joint matching with optical fiber pre-termination adapters of different manufacturers, so that the universality is better;

the optical fiber pre-termination connector assembly A, the optical fiber pre-termination connector assembly B and the optical fiber pre-termination adapter are subjected to waterproof treatment, poor contact caused by air humidity is avoided, the stability of optical fiber surfing is improved, and the maintenance period is prolonged.

Drawings

FIG. 1 is a schematic diagram of an optical fiber pre-terminated connector assembly A according to the present utility model;

FIG. 2 is an exploded view of the optical fiber preterminated connector assembly A of the present utility model;

FIG. 3 is a schematic view of the structure of an optical fiber pre-terminated connector assembly B of the present utility model;

FIG. 4 is an exploded view of the fiber optic preterminated connector assembly B of the present utility model;

FIG. 5 is a schematic diagram of the fiber pre-terminated adapter of the present utility model;

FIG. 6 is an exploded view of the fiber optic pre-terminated adapter of the present utility model;

FIG. 7 is a schematic illustration of an optical fiber preterminated connector assembly A of the present utility model prior to connection with an optical fiber preterminated connector assembly B;

FIG. 8 is a schematic illustration of an optical fiber preterminated connector assembly A and an optical fiber preterminated connector assembly B according to the present utility model after connection;

FIG. 9 is a schematic view of the structure of the present utility model after the connection of the clamping groove and the buckle;

fig. 10 is a schematic view of an optical fiber pre-terminated connector assembly B of the present utility model after connection with an optical fiber pre-terminated adapter.

In the figure: 1. a waterproof cap A; 2. a dust-proof sheath; 3. a core insert protective sleeve; 4. a ceramic ferrule; 5. a spring A; 6. an inner body; 7. a crimp ring; 8. clamping springs; 9. a waterproof sealing ring A; 10. a main body A; 11. a heat shrinkage pipe A; 12. a nut A; 13. a tail cap A; 14. a connecting strip A; 15. rubber-covered wire optical fibers; 16. a nut C; 17. a connecting strip B; 18. a dust plug; 19. an adapter core; 20. a ceramic sleeve; 21. an adapter body; 22. a waterproof sealing ring C; 23. a pull ring B; 24. a spring C; 25. an adapter dust cap A; 26. brace B; 27. a waterproof cap B; 28. a pull ring A; 29. a spring B; 30. a waterproof sealing ring B; 31. a main body sheath A; 32. a nut B; 33. brace A; 34. a clamping groove; 35. and (5) a buckle.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-10, the present utility model provides a technical solution: an optical fiber pre-terminated plug includes an optical fiber pre-terminated connector assembly A;

as shown in fig. 2, the optical fiber pre-terminated connector assembly a includes a rubber-covered wire optical fiber 15, a main body a10 is sleeved on the surface of the rubber-covered wire optical fiber 15, a screw thread is provided at the left end of the main body a10, a ceramic ferrule 4 is provided at the right end of the rubber-covered wire optical fiber 15, a spring A5 and an inner main body 6 are sleeved on the surface of the ceramic ferrule 4, the left end of the spring A5 is inserted into the inner main body 6, the right end of the spring A5 is abutted against the ceramic ferrule 4, a ferrule protection sleeve 3 is provided at the surface of the inner main body 6, so as to realize stable connection between the inner main body 6 and the ceramic ferrule 4, a crimp ring 7 is provided at the left end of the inner main body 6, so as to fix the inner main body 6 and the rubber-covered wire optical fiber 15, and limit sliding of the rubber-covered wire optical fiber 15, the main body a10 is butted with the inner main body 6, the inner main body 6 is inserted into the main body a10, a nut a12 is provided at the left end of the main body a10, the nut a12 is screwed with the main body a10, an external thread pipe is provided at the right side of the nut a12, and the same kind of other brand of optical fiber pre-terminated adaptor can be connected;

the waterproof cap A1 is sleeved on the surface of the main body A10, and the whole optical fiber pre-terminated connector assembly A is waterproof;

as shown in fig. 4, the optical fiber pre-terminated connector assembly B includes:

the main body sheath A31, main body sheath A31 cup joints at nut A12 right-hand member, connects optic fibre pre-termination connector assembly B with optic fibre pre-termination connector assembly A, main body sheath A31 is equipped with the step, and the step surface cup joints pull ring A28, realizes main body sheath A31 and pull ring A28's connection, main body sheath A31 cup joints the spring B29 that is located pull ring A28 inside, pull ring A28 right-hand member cup joints waterproof cap B27, main body sheath A31 surface is equipped with draw-in groove 34, and draw-in groove 34 middle part has the draw-in bar that flushes with main body sheath A31, and waterproof cap B27 card advances inside draw-in groove 34, waterproof to optic fibre pre-termination connector assembly B.

The surface of the rubber-insulated wire optical fiber 15 is sleeved with a heat-shrinkable tube A11, the surface of the heat-shrinkable tube A11 is sleeved with a tail cap A13, the right end of the tail cap A13 is positioned inside the nut A12, and the heat-shrinkable tube A11 is positioned inside the tail cap A13.

The waterproof sealing ring A9 is sleeved on the right side of the surface of the main body A10, the surface of the main body A10 is provided with a ring groove for preventing the waterproof sealing ring A9 from moving, a clamp spring 8 is arranged at the joint of the main body A10 and the inner main body 6, the clamp spring 8 is n-shaped, two insertion holes are formed in the surface of the main body A10, the surface of the inner main body 6 is provided with a groove, and the clamp spring 8 penetrates through the insertion holes and is clamped into the groove.

The right end of the ceramic ferrule 4 is sleeved with a dustproof sheath 2, the left end of the tail cap A13 and the right end of the waterproof cap A1 are both provided with connecting strips A14, and two ends of the connecting strips A14 are annular.

The clamping grooves 34 are arranged in three groups, the three groups of clamping grooves 34 are annularly arranged on the surface of the main body sheath A31, and the right end of the main body sheath A31 is sleeved with the waterproof sealing ring B30.

The optical fiber pre-terminated connector assembly B further comprises a waterproof cap B27, the waterproof cap B27 is sleeved at the right end of the pull ring A28, and the main body sheath A31 penetrates through the pull ring A28 and then is inserted into the waterproof cap B27.

The left end of the main body sheath A31 is in threaded connection with a nut B32, an opening of the main body sheath A31 is plugged, and a brace A33 is arranged on the surface of the pull ring A28.

As shown in fig. 6, an optical fiber pre-termination adapter matched with an optical fiber pre-termination plug comprises an adapter main body 21, three groups of buckles 35 are arranged on the inner wall of the left side of the adapter main body 21, the buckles 35 are in an L shape, the sizes of the buckles 35 are matched with a clamping groove 34, a ceramic sleeve 20 is arranged inside the adapter main body 21, an adapter inner core 19 and a dust plug 18 are sleeved on the surface of the ceramic sleeve 20, the adapter inner core 19 is clamped on the surface of the dust plug 18, a nut C16 is screwed on the right end of the adapter main body 21, and the dust plug 18 is prevented from falling off from the adapter main body 21.

The optical fiber pre-terminated adapter further comprises an adapter dustproof cap A25, a spring C24 and a waterproof sealing ring C22 are respectively sleeved on the surface and the right end of the adapter dustproof cap A25, a pull ring B23 is sleeved on the left side of the surface of the adapter dustproof cap A25, and the spring C24 is located between the adapter dustproof cap A25 and the pull ring B23.

The pull ring B23 surface is equipped with brace B26, adapter main part 21 right-hand member and adapter dust cap A25 left end all are equipped with connecting strip B17.

Specifically, in use, the optical fiber pre-terminated connector assembly a and the optical fiber pre-terminated connector assembly B are connected, referring to fig. 7, the waterproof cap A1 is screwed, the waterproof cap A1 is removed from the main body a10, then the waterproof cap A1 is separated from the connecting strip a14, the nut B32 is screwed to separate the waterproof cap A1 from the main body sheath a31, at the moment, the step outside the nut a12 is connected with the step inside the main body sheath a31, the connection of the optical fiber pre-terminated connector assembly a and the optical fiber pre-terminated connector assembly B is completed, the connecting strip a14 is sheathed on the waterproof cap B27, the waterproof cap B27 is prevented from being lost after falling off from the pull ring a28, referring to fig. 8 after connection, and the ceramic ferrule 4 enters the inside the main body sheath a 31;

connecting the optical fiber pre-terminated connector assembly B with the optical fiber pre-terminated adapter, and referring to FIG. 9 before connection, firstly pulling the pull bar A33 leftwards, the pull bar A33 drives the pull ring A28 to move leftwards so that the clamping groove 34 is exposed, pulling the pull bar A33 and pulling the waterproof cap B27 rightwards, so that the optical fiber pre-terminated connector assembly B is in a state to be connected; pulling the brace B26 leftwards and pulling the adapter main body 21 rightwards, exposing the buckle 35 in the adapter main body 21, sleeving the adapter main body 21 on the main body sheath A31, expanding the buckle 35 in the sleeving process, clamping the buckle 35 into the clamping groove 34 after aligning the buckle 35 with the clamping groove 34, abutting the ceramic ferrule 4 with the ceramic sleeve 20 at the moment, moving the pull ring A28 rightwards against the adapter main body 21 under the action of the spring B29, referring to FIG. 10 after connection, inserting the waterproof cap B27 into the pull ring B23, and finishing and accommodating components;

the optical fiber pre-termination connector assembly B and the optical fiber pre-termination adapter are butted to form an end to be waterproof, the first path is that a waterproof sealing ring A9 is arranged on a main body A10, the second path is that a heat shrinkage pipe A11 is arranged at the joint of the main body A10 and a rubber-covered wire optical fiber 15 to play a role in sealing and waterproofing, and the third path is that a waterproof sealing ring B30 is arranged outside a main body sheath A31 to ensure that the ceramic ferrule 4 and the ceramic sleeve 20 are stably butted;

when the optical fiber pre-termination connector assembly A is required to be connected with the optical fiber pre-termination adapter of other similar products, the optical fiber pre-termination connector assembly B is detached from the optical fiber pre-termination connector assembly A, at the moment, the waterproof cap A1 of the optical fiber pre-termination connector assembly A is removed, and the optical fiber pre-termination connector assembly A is connected with the optical fiber pre-termination adapter of other similar products by utilizing the external threaded tube on the right side surface of the screw cap A12 according to the state of FIG. 7.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims (10)

1. An optical fiber pre-terminated plug, comprising:

an optical fiber pre-terminated connector assembly a, the optical fiber pre-terminated connector assembly a comprising:

the rubber-insulated wire optical fiber (15), main part A (10) has been cup jointed on rubber-insulated wire optical fiber (15) surface, rubber-insulated wire optical fiber (15) right-hand member is equipped with pottery lock pin (4), and pottery lock pin (4) surface has cup jointed spring A (5) and interior main part (6), interior main part (6) surface is equipped with lock pin protective sheath (3), interior main part (6) left end is equipped with crimping ring (7) to fixed interior main part (6) and rubber-insulated wire optical fiber (15), main part A (10) dock with interior main part (6), main part A (10) left end is equipped with nut A (12), and nut A (12) right flank is equipped with the external screw thread pipe;

the waterproof cap A (1) is sleeved on the surface of the main body A (10);

an optical fiber pre-terminated connector assembly B, the optical fiber pre-terminated connector assembly B comprising:

main part sheath A (31), main part sheath A (31) cup joints at nut A (12) right-hand member, main part sheath A (31) are equipped with the step, and the step surface cup joints pull ring A (28), main part sheath A (31) cup joints spring B (29) that are located pull ring A (28) inside, pull ring A (28) right-hand member cup joints waterproof cap B (27), main part sheath A (31) surface is equipped with draw-in groove (34), draw-in groove (34) middle part have with main part sheath A (31) flush draw-in bar.

2. An optical fiber pre-terminated plug according to claim 1, wherein: the surface of the rubber-insulated wire optical fiber (15) is sleeved with a heat shrinkage tube A (11), the surface of the heat shrinkage tube A (11) is sleeved with a tail cap A (13), and the right end of the tail cap A (13) is positioned in the nut A (12).

3. An optical fiber pre-terminated plug according to claim 1, wherein: waterproof sealing ring A (9) has been cup jointed on main part A (10) surface right side, the butt joint department of main part A (10) and interior main part (6) is equipped with jump ring (8).

4. An optical fiber pre-terminated plug according to claim 2, wherein: the right end of the ceramic ferrule (4) is sleeved with a dustproof sheath (2), and the left end of the tail cap A (13) and the right end of the waterproof cap A (1) are both provided with connecting strips A (14).

5. An optical fiber pre-terminated plug according to claim 1, wherein: the clamping grooves (34) are formed in three groups, the three groups of clamping grooves (34) are annularly arranged on the surface of the main body sheath A (31), and the right end of the main body sheath A (31) is sleeved with the waterproof sealing ring B (30).

6. An optical fiber pre-terminated plug according to claim 1, wherein: the optical fiber pre-terminated connector assembly B further comprises a waterproof cap B (27), and the waterproof cap B (27) is sleeved at the right end of the pull ring A (28).

7. An optical fiber pre-terminated plug according to claim 1, wherein: the left end of the main body sheath A (31) is in threaded connection with a nut B (32), and the surface of the pull ring A (28) is provided with a brace A (33).

8. An optical fiber preterminated adapter mated with the optical fiber preterminated plug of any one of claims 1 to 7, comprising: including adapter main part (21), adapter main part (21) left side inner wall is equipped with three buckle (35) of group, and buckle (35) are L shape, adapter main part (21) inside is equipped with ceramic sleeve (20), adapter inner core (19) and dust plug (18) have been cup jointed on ceramic sleeve (20) surface, adapter main part (21) right-hand member spiro union has nut C (16).

9. A fiber optic pre-termination adapter according to claim 8, wherein: still include adapter shield A (25), adapter shield A (25) surface and right-hand member have cup jointed spring C (24) and waterproof sealing circle C (22) respectively, adapter shield A (25) surface left side has cup jointed pull ring B (23).

10. A fiber optic pre-termination adapter according to claim 9, wherein: the surface of the pull ring B (23) is provided with a pull rod B (26), and the right end of the adapter main body (21) and the left end of the adapter dustproof cap A (25) are both provided with a connecting strip B (17).