A multi-purpose fiber optic connector

Abstract

This utility model mainly relates to the field of fiber optic connectors, and particularly to a multi-purpose fiber optic connector, comprising: an optical communication component, the front end of which extends out of the inner housing; the optical communication component having a ceramic ferrule, the rear end of which is provided with a pineapple-pattern crimping portion, and the middle of which is provided with an optical communication component housing snap-fit ​​piece; a ceramic ferrule disposed at the front end of the ceramic ferrule; the optical communication component housing being fixed to the ceramic ferrule via the optical communication component housing snap-fit ​​piece; a crimping tube, the front end of which is crimped onto the pineapple-pattern crimping portion; an optical cable sleeve, installed at the front end of the sheath of a sheathed optical cable, the interior of which is provided with through holes allowing optical fibers and wires of the optical cable to pass through, the optical cable sleeve and the optical cable being insertable from the rear end of the crimping tube and fixed to the crimping tube by adhesive; and a snap-fit ​​platform in the middle of the ceramic ferrule.

Description

Technical Field

[0001] This utility model mainly relates to the field of fiber optic connectors, and in particular to a multi-purpose fiber optic connector. Background Technology

[0002] Waterproof fiber optic connectors typically consist of a cylindrical housing, inside which the optical communication components are housed. There are generally two waterproofing solutions: one where the main waterproofing structure is located on the adapter, and the other where it's located on the fiber optic connector itself. When the main waterproofing structure is on the connector, a corresponding structure needs to be installed on the optical communication components within the cylindrical housing. However, different manufacturers use different port structures, making them incompatible and resulting in wasted resources and inconvenient retrofitting. Furthermore, waterproof fiber optic connectors are subjected to significant tensile forces in outdoor applications, especially when the fiber optic cable is overhead. Utility Model Content

[0003] To solve the above-mentioned technical problems, this utility model provides a multi-purpose fiber optic connector, which is achieved through the following technical solution: Includes: an inner housing, within which an optical communication component is disposed; and a card insertion slot is provided on the inner housing; An optical communication component, the front end of which extends out of the inner housing; the optical communication component has a ceramic ferrule, the rear end of which is provided with a pineapple-patterned crimping part, and the middle of which is provided with an optical communication component housing snap-fit ​​piece; a ceramic ferrule is disposed at the front end of the ceramic ferrule; a spring is disposed inside the ceramic ferrule, the spring being used to provide elastic force to the ceramic ferrule; the optical communication component housing is fixed to the ceramic ferrule by the optical communication component housing snap-fit ​​piece; a crimping tube is crimped to the pineapple-patterned crimping part at its front end; an optical cable sheath is installed on the sheathed optical cable. At the front end of the cable sheath, the interior of the optical cable sleeve is provided with through holes that allow the optical fibers and wires of the optical cable to pass through. The optical cable sleeve and the optical cable can be inserted from the rear end of the crimping tube and the optical cable sleeve is fixed to the crimping tube with glue. A card abutment is provided in the middle of the ceramic ferrule. When the optical communication component is disposed in the inner housing, the position of the card abutment corresponds to the position of the card insertion port of the inner housing. The card is used to be inserted from the card insertion port of the inner housing and abut against the card abutment, thereby fixing the optical communication component to the inner housing. A rotating part is rotatably disposed on the main body of the inner shell; the outer surface of the rotating part is provided with protruding locking pins; A port housing is configurable to and removable from the inner housing; the port housing is movable from the optical communication component to the main body of the inner housing; the inner surface of the port housing is provided with a groove that mates with the locking post; the groove extends inward from a port at one end of the port housing and in a circumferential direction; A port locking housing is rotatably mounted on a port housing; the port locking housing is provided with a fixing part for fixing to an adapter; The fiber optic connector includes at least two locking configurations to the adapter. One configuration involves not installing the port housing and the port locking shell, and directly fixing the inner housing to the adapter by engaging the locking pin of the rotating part with the adapter. The other configuration involves installing the port housing and the port locking shell, fixing the port housing to the inner housing by engaging the locking pin of the rotating part with the port housing, and then fixing the inner housing to the adapter by rotating the port locking shell.

[0004] Preferably, the groove has a tail end, and when the locking pin of the rotating part rotates to the tail end, the port housing is fixed to the inner housing.

[0005] Preferably, a gap for engaging with an adapter is provided between the port locking housing and the port housing, and the fixing part is configured to have a second locking post for engaging with the adapter on the inner surface of the port locking housing.

[0006] Preferably, the outer surface of the port locking housing is provided with threads that mate with the adapter.

[0007] Preferably, the inner housing is provided with a sliding groove having two ends; the inner surface of the rotating part is provided with a third locking post that cooperates with the sliding groove, and the rotating part is restricted to rotate from one end of the sliding groove to the other end. When the rotating part rotates to one end, it corresponds to the locking position of the port housing or adapter, and when it rotates to the other end, it corresponds to the opening position of the port housing or adapter.

[0008] Preferably, the port housing is provided with a sliding groove, and the inner surface of the port locking housing is provided with a slider that cooperates with the sliding groove.

[0009] Preferably, the groove has a protrusion in the middle.

[0010] Preferably, it also includes a tail sleeve, which is threaded to the tail of the inner housing; the rotating part is restricted to the inner housing by the tail sleeve abutting against the rotating part.

[0011] The beneficial effects of this utility model are as follows: The rotating part of the multi-purpose fiber optic connector provided by this utility model can be directly connected to the adapter, and the rotating part can also be fixed to the port housing. The port housing can be adapted to ports from various manufacturers, and then locked to the corresponding adapter by the port locking shell, which is convenient for use and on-site construction. At the same time, the crimping tube of the optical communication component is crimped onto the ceramic ferrule, and the front end of the optical cable is inserted into the rear of the crimping tube with glue, so that the fiber optic connector can withstand greater tensile force. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of the optical multi-purpose fiber optic connector of this utility model (with adapter); Figure 2 This is an exploded structural diagram of the optical multi-purpose fiber optic connector of this utility model; Figure 3 This is a schematic diagram of the inner shell of the optical multi-purpose fiber optic connector of this utility model; Figure 4 This is a schematic diagram of the rotating part of the optical multi-purpose fiber optic connector of this utility model; Figure 5 This is a schematic diagram of the main housing and the first type of port housing of the optical multi-purpose fiber optic connector of this utility model; Figure 6 This is a schematic diagram of the main housing and the second type of port housing of the optical multi-purpose fiber optic connector of this utility model; Figure 7 This is a cross-sectional structural diagram of the second type of port housing of the optical multi-purpose fiber optic connector of this utility model; Figure 8 This is a cross-sectional structural diagram of the second type of port housing and port locking housing of the optical multi-purpose fiber optic connector of this utility model. Figure 9 This is a schematic diagram of the assembly state of the second type of port housing of the optical multi-purpose fiber optic connector of this utility model, assembled into the inner housing; Figure 10 This is a schematic diagram of the first type of optical multi-purpose fiber optic connector of this utility model, showing the assembly state of the port housing to the inner housing. Figure 11 This is an exploded structural diagram of the field-assembled type of the optical multi-purpose fiber optic connector of this utility model; Figure 12 This is a schematic diagram of the cross-sectional structure of the tail sleeve of the field-assembled type of the optical multi-purpose fiber optic connector of this utility model. Figure 13 This is an exploded structural diagram of the optical communication component of this utility model; Figure 14 This is a cross-sectional structural diagram of the optical communication component of this utility model. Detailed Implementation

[0013] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0014] Currently, there are many types of waterproof connectors on the market, and the interfaces are not interchangeable. Furthermore, since one end of the device's adapter connects to the main unit or is located inside a junction box, quick adapter replacement is not possible, especially during on-site modifications. Moreover, on-site conditions are complex, and the form of the adapter and fiber optic connector interface cannot be determined. To facilitate use, this patent provides a multi-purpose fiber optic connector.

[0015] like Figure 1 , Figure 2 , Figure 3 , Figure 13 and Figure 14 As shown, an optical communication component 2 is disposed at the front end of the inner housing 1. The inner housing 1 mainly includes an inner housing body 3, on which a sliding groove 4 is disposed, arranged along the circumference of the inner housing body 3. The sliding groove 4 has two ends, and a third locking post 6 is disposed on the inner surface of the rotating part 5, which cooperates with the sliding groove 4. The rotating part 5 is restricted to rotating from one end of the sliding groove 4 to the other end by the third locking post 6. A protrusion is disposed in the middle of the sliding groove 4, which increases the damping feel during rotation, thus restricting the rotating part 5 to one end of the sliding groove. A card insertion slot 36 is disposed on the inner housing body 3 of the inner housing 1.

[0016] The front end of the optical communication component 2 extends out of the inner housing body 3 of the inner housing 1. The optical communication component 2 has a ceramic ferrule holder 27, with a pineapple-patterned crimping portion 28 at its rear end and an optical communication component housing snap-fit ​​tab 29 in its middle. A ceramic ferrule 30 is disposed within a receiving chamber at the front end of the ceramic ferrule holder 27. A spring 31 is disposed within the receiving chamber of the ceramic ferrule holder 27, providing elasticity to the ceramic ferrule 27. The optical communication component housing 32 is fixed to the ceramic ferrule holder 27 via the optical communication component housing snap-fit ​​tab 29. The front end of the crimping tube 33 is crimped onto the pineapple-patterned crimping portion 28, thereby securing the two together. Both the crimping tube 33 and the ceramic ferrule holder 27 are made of metal. The optical cable sleeve 34 is installed at the front end of the sheath of the optical cable. The interior of the optical cable sleeve 34 has through holes allowing the optical fiber and wire of the optical cable to pass through. The optical cable sleeve 34 and the optical cable can be inserted from the rear end of the crimping tube 33 and fixed to the crimping tube 33 with adhesive. Specifically, the wire of the optical cable passes through the optical cable sleeve 34 and bends backward, while the optical fiber enters the ceramic ferrule 30 forward. A card abutment platform 35 is provided in the middle of the ceramic ferrule holder 27. When the optical communication component 2 is disposed within the inner housing 1, the position of the card abutment platform 35 corresponds to the position of the card insertion port 36 of the inner housing 1. The card 36 is used to be inserted from the card insertion port 36 of the inner housing 1 and abuts against the card abutment platform 35. Specifically, it can be inserted into the gap 38 between the card abutment platform 35 and the crimping tube 33, thereby fixing the optical communication component 2 to the inner housing 1.

[0017] A groove 4 is provided on the inner shell body 3 at the tail end, and a thread 7 is located in the direction of the groove 4 toward the tail end. The thread 7 has a cutting part in the direction of the groove, so that the groove 4 is open to the outside in the direction of the tail end, allowing the rotating part 5 to enter the groove 4 from the rear. At the same time, a tail sleeve 8 is provided on the thread 7, so that the tail sleeve 8 abuts against the rotating part 5, thereby restricting the rotating part 5 to the inner shell body.

[0018] An optical communication component 9 is fixedly installed inside the inner housing body 3. This optical communication component 9 has an optical communication assembly, which is used to interface with the communication interface inside the adapter for optical communication. This optical communication component 9 is generally a housing similar to an SC or FC type connector.

[0019] like Figure 4 As shown, the rotating part 5 is rotatably mounted on the inner housing body 3, and a protruding locking post 10 is provided on the outer surface of the rotating part 5. The locking post 10 can directly engage with the adapter 11 or with the port housing 12. The locking post 10 rotates with the rotating part 5. When the rotating part 5 rotates to one end, it corresponds to the locking position of the port housing or adapter, and when it rotates to the other end, it corresponds to the opening position of the port housing or adapter.

[0020] like Figure 5 and Figure 6 As shown, the port housing 12 can be configured into and removed from the inner housing 1. The port housing 12 can be moved from the optical communication component, i.e., the front end of the inner housing 1, to the main body of the inner housing 1. The inner surface of the port housing 12 is provided with a groove 13 that mates with the locking post 10. The groove 13 extends inward from the port at the tail end of the port housing 12 and in a circumferential direction, forming an integral arc-shaped groove. When the port housing 12 is inserted into the inner housing 1, it is fixed in the circumferential direction due to the presence of the optical communication component 9. After the locking post 10 enters the groove 13, it directly pushes the port housing 12 or rotates the rotating part 5. The groove 13 has a tail end. When the locking post 10 of the rotating part 5 rotates to the tail end, the port housing 12 is fixed to the inner housing 1. The structure of the groove 13 is consistent with the groove arrangement in the adapter 11, so that the rotating part 5 can be directly fixed to the adapter 11 or fixed to the port housing 12. The port housing 12 is then fixed to the adapter by the port locking shell 14. Different shapes of port housing 12 are available, such as... Figure 5 and Figure 6 As shown, the port housings 12 and port locking housings 14 of different shapes correspond to adapters with different shapes and structures.

[0021] The port locking housing 14 is rotatably mounted on the port housing 12. Specifically, the port housing 12 is provided with a groove 15, and the inner surface of the port locking housing 14 is provided with a slider 16 that mates with the groove 15. Figure 7 and Figure 8 As shown, the port locking housing 14 is provided with a fixing part for fixing to the adapter 11. This fixing part may have a gap between the port locking housing 14 and the port housing 12 for engaging with the adapter. The fixing part is configured such that a second locking post 17 for engaging with the adapter is provided on the inner surface of the port locking housing. Alternatively, as... Figure 5 As shown, the fixing part is configured as a port locking housing 14 with a thread 18 on the outer surface that mates with the adapter.

[0022] This patent also provides a field-assembled multi-purpose fiber optic connector, the main structure of which is to replace the optical communication component 9 with a field-assembled fiber optic connector or a regular fiber optic connector, and to add a waterproof structure to the tail of the inner housing 1, specifically: The system also includes an optical fiber connector body 19, which is equipped with a locking block 20. A bayonet 21 is provided at the front end of the inner housing 1, which engages with the locking block 20 to fix the optical fiber connector body 19 to the inner housing 1. The optical communication port of the optical fiber connector body 19 extends from the front end. A waterproof plug 22 and a locking claw 23 are provided at the rear end of the inner housing 1. Both the waterproof plug 22 and the locking claw 23 have openings in their middle sections to allow the optical cable to pass through. The waterproof plug 22 can be inserted from the rear end of the inner housing 1. A notch 24 is provided on the thread of the inner housing 1. The locking claw 23 has two parts: one part has a locking ridge 25, which inserts into and is fixed to the inner housing 1; the part of the locking claw 23 located outside the rear end of the inner housing 1 has an inwardly movable retractable portion. This retractable portion consists of several pressure plates or pressure claws, which retract inward to fix the optical cable when subjected to compressive force. The tail cap 8 has a retractable cavity 26 inside. When the tail cap 8 is fixed to the tail of the inner housing 1, the retractable cavity 26 squeezes the retractable part of the claw 23, so that the claw 23 fixes the optical cable.

[0023] The fiber optic connector includes at least two locking configurations to the adapter. One configuration involves not installing the port housing 12 and port locking housing 14, directly fixing the inner housing 1 to the adapter via the locking pin 10 of the rotating part 5. The other configuration involves installing the port housing 12 and port locking housing 14, fixing the port housing to the inner housing 1 via the locking pin 10 of the rotating part 5, and then fixing the inner housing 1 to the adapter by rotating the port locking housing 14. In practical use, several port housings 12 can be configured on the main body of the inner housing 1, and corresponding port locking housings 14 can be configured on them, as shown in the assembly state. Figure 9 and Figure 10 As shown, use according to the actual situation on site.

Claims

1. A multi-purpose fiber optic connector, characterized in that: include: An inner housing, within which an optical communication component is housed; a card insertion slot is provided on the inner housing; An optical communication component, the front end of which extends out of the inner housing; the optical communication component has a ceramic ferrule, the rear end of which is provided with a pineapple-patterned crimping part, and the middle of which is provided with an optical communication component housing snap-fit ​​piece; a ceramic ferrule is disposed at the front end of the ceramic ferrule; a spring is disposed inside the ceramic ferrule, the spring being used to provide elastic force to the ceramic ferrule; the optical communication component housing is fixed to the ceramic ferrule by the optical communication component housing snap-fit ​​piece; a crimping tube is crimped to the pineapple-patterned crimping part at its front end; an optical cable sheath is installed on the sheathed optical cable. At the front end of the cable sheath, the interior of the optical cable sleeve is provided with through holes that allow the optical fibers and wires of the optical cable to pass through. The optical cable sleeve and the optical cable can be inserted from the rear end of the crimping tube and the optical cable sleeve is fixed to the crimping tube with glue. A card abutment is provided in the middle of the ceramic ferrule. When the optical communication component is disposed in the inner housing, the position of the card abutment corresponds to the position of the card insertion port of the inner housing. The card is used to be inserted from the card insertion port of the inner housing and abut against the card abutment, thereby fixing the optical communication component to the inner housing. A rotating part is rotatably disposed on the main body of the inner shell; the outer surface of the rotating part is provided with protruding locking pins; A port housing is configurable to and removable from the inner housing; the port housing is movable from the optical communication component to the main body of the inner housing; the inner surface of the port housing is provided with a groove that mates with the locking post; the groove extends inward from a port at one end of the port housing and in a circumferential direction; A port locking housing is rotatably mounted on a port housing; the port locking housing is provided with a fixing part for fixing to an adapter; The fiber optic connector includes at least two forms of locking to the adapter. One form is where the port housing and the port locking housing are not installed, and the inner housing is directly fixed to the adapter by the engagement of the locking pin of the rotating part with the adapter. Another configuration involves installing the port housing and the port locking housing, fixing the port housing to the inner housing by the engagement of the locking pin of the rotating part with the port housing, and then fixing the inner housing to the adapter by rotating the port locking housing.

2. The multi-purpose fiber optic connector according to claim 1, characterized in that: The groove has a tail end, and when the locking pin of the rotating part rotates to the tail end, the port housing is fixed to the inner housing.

3. The multi-purpose fiber optic connector according to claim 1, characterized in that: A gap for engaging with an adapter is provided between the port locking housing and the port housing, and the fixing part is configured to have a second locking post for engaging with the adapter on the inner surface of the port locking housing.

4. The multi-purpose fiber optic connector according to claim 1, characterized in that: The outer surface of the port locking housing is provided with threads that mate with the adapter.

5. The multi-purpose fiber optic connector according to claim 1, characterized in that: The inner housing is provided with a sliding groove having two ends; the inner surface of the rotating part is provided with a third locking post that cooperates with the sliding groove; the rotating part is restricted to rotate from one end of the sliding groove to the other end; when the rotating part rotates to one end, it corresponds to the locking position of the port housing or adapter; when it rotates to the other end, it corresponds to the opening position of the port housing or adapter.

6. The multi-purpose fiber optic connector according to claim 1, characterized in that: The port housing is provided with a sliding groove, and the inner surface of the port locking housing is provided with a slider that cooperates with the sliding groove.

7. The multi-purpose fiber optic connector according to claim 5, characterized in that: The groove has a protrusion in the middle.

8. The multi-purpose fiber optic connector according to claim 1, characterized in that: It also includes a tail sleeve, which is threaded to the tail of the inner housing; the rotating part is restricted to the inner housing by the tail sleeve abutting against the rotating part.

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