A LC type optical fiber connector with a lock tail sleeve pull rod

Abstract

The utility model provides a kind of LC type optical fiber connector with lock tail sleeve pull rod. It solves the problem that the existing lock connector is too large in size, the operation is complex, which leads to the inconvenience in high-density wiring environment, and the two plug-in core assemblies need to be exchanged to change the polarity in the case of LC duplex connector polarity installation error. The utility model is locked between the slide cover and the base by setting the elastic sheet between the base and the slide cover, and the locking between the slide cover and the base is realized by the cooperating buckle and the boss. Only by inserting the key into the opening, making the buckle deform and move to the two sides of the boss, and then making the buckle and the boss disengage, can the unlocking between the slide cover and the base be realized. The unlocking is convenient and the disassembly is also convenient, which not only ensures the network communication security, but also greatly improves the work efficiency compared with other lock mechanisms.

Description

Technical Field

[0001] This utility model relates to the field of optical fiber communication technology, and in particular to an LC type optical fiber connector with a locking tail sleeve pull rod. Background Technology

[0002] Traditional fiber optic connectors, after being inserted into the adapter, can be disassembled by pressing the front spring, pulling the tail sleeve, or pulling the lever. However, these methods are accessible to anyone and offer no guarantee of network transmission security. Operators may also accidentally disconnect the connector, causing unnecessary losses. Furthermore, existing locking mechanisms on the market are either too bulky or too complex to operate, making them inconvenient in high-density cabling environments. In cases where the polarity of LC duplex connectors is incorrectly installed, the two ferrule assemblies need to be interchanged, which is difficult. Therefore, existing technologies have room for improvement. Summary of the Invention

[0003] This utility model addresses the aforementioned shortcomings by providing a locking tail sleeve pull rod type LC fiber optic connector, comprising a pull rod tail sleeve, a ferrule housing for mounting the fiber optic cable, and a mounting bracket for mounting the ferrule housing. The mounting bracket is inserted into the mounting sleeve, and the mounting sleeve has a base for locking the mounting bracket to the mounting sleeve. A sliding cover is inserted into the base. The ferrule housing has a spring piece for unlocking the ferrule housing from the adapter after being pressed and deformed. The end of the spring piece away from the ferrule housing is located between the base and the sliding cover. A boss is fixedly provided on the base, and a buckle is fixedly provided on the sliding cover for engaging with the boss to lock the sliding cover to the base. The sliding cover also has a key for driving the buckle to disengage from the boss to unlock the sliding cover from the base.

[0004] Preferably, there are two buckles located on both sides of the protrusion. The end of the buckle facing the insert housing is fixedly provided with a locking block for engaging with the end face of the protrusion facing the insert housing. The sliding cover has an opening for inserting the key on the side away from the spring piece. The opening is directly opposite the locking block. The buckle is gradually inclined from the opening towards the spring piece towards the protrusion. Both the locking block and the protrusion are located below the plane of the opening.

[0005] Preferably, the end of the key facing the opening is fixedly provided with a locking tongue for insertion into the opening.

[0006] Preferably, the base is fixedly provided with baffles on both sides for fastening to the sides of the sliding cover, and the sliding cover is inserted between the two baffles and the base.

[0007] Preferably, the lower end of the base is fixedly provided with a hook that passes through the fixing sleeve and the fixing frame to lock the base, the fixing frame and the fixing sleeve.

[0008] Preferably, a limiting block is fixedly provided on the tail sleeve of the pull rod, which abuts against the base, and a notch for engaging the limiting block is provided at the lower end of the sliding cover.

[0009] Preferably, the lower end of the sliding cover, away from the opening, has a pressure block that abuts against the aforementioned spring piece and can move and drive the spring piece downward to complete the unlocking of the adapter and the socket housing. The pressure block is inverted triangular in shape.

[0010] Preferably, the side wall of the spring sheet facing the key has a plug for inserting into the side wall of the base, the side wall of the base has a hole for engaging the plug, and the lower end of the sliding cover has a groove for accommodating the plug.

[0011] Compared with the prior art, this utility model sets the spring piece between the base and the sliding cover, and locks the sliding cover and the base through the matching buckle and the boss. The sliding cover and the base can only be unlocked by inserting a key into the opening, which causes the buckle to deform and move to both sides of the boss, so that the locking block disengages from the boss. Unlocking is convenient and disassembly is also convenient. It not only ensures network communication security, but also greatly improves work efficiency compared with other locking mechanisms. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of this utility model;

[0013] Figure 2 This is an exploded view of the present invention;

[0014] Figure 3 This is a bottom view of the sliding cover;

[0015] Figure 4 This is a sectional view of the present invention;

[0016] Figure 5 for Figure 4 Enlarged view of point A in the middle.

[0017] The markings in the diagram are: 1. Pull rod tail sleeve; 2. Insert housing; 3. Fixing bracket; 4. Fixing sleeve; 5. Base; 6. Sliding cover; 7. Spring piece; 8. Boss; 9. Buckle; 10. Locking block; 11. Opening; 12. Lock tongue; 13. Edge guard; 14. Hook; 15. Limiting block; 16. Notch; 17. Pressing block; 18. Inserting block; 19. Inserting hole; 20. Slide groove; 21. Key. Detailed Implementation

[0018] The present invention will be further described below with reference to the embodiments shown in the accompanying drawings:

[0019] like Figure 1-5 As shown, an LC-type fiber optic connector with a locking tail sleeve includes a tail sleeve 1, a ferrule housing 2 for mounting the fiber optic cable, and a mounting bracket 3 for mounting the ferrule housing 2. The mounting bracket 3 is inserted into a mounting sleeve 4. The mounting sleeve 4 is provided with a base 5 for locking the mounting bracket 3 and the mounting sleeve 4. A sliding cover 6 is inserted into the base 5. The ferrule housing 2 is provided with a spring piece 7 for unlocking the ferrule housing 2 from the adapter after being pressed and deformed. The end of the spring piece 7 away from the ferrule housing 2 is located between the base 5 and the sliding cover 6. A boss 8 is fixedly provided on the base 5. A buckle 9 is fixedly provided on the sliding cover 6 for locking the sliding cover 6 and the base 5 by engaging with the boss 8. A key 21 is provided on the sliding cover 6 for driving the buckle 9 to disengage from the boss 8 to unlock the sliding cover 6 and the base 5. Two buckles 9 are provided and are located on both sides of the protrusion 8. The end of the buckle 9 facing the insert housing 2 is fixedly provided with a locking block 10 for engaging with the end face of the protrusion 8 facing the insert housing 2. The sliding cover 6 has an opening 11 for inserting the key 21 on the side away from the spring piece 7. The opening 11 is directly opposite the locking block 10. The buckle 9 is gradually inclined from the opening 11 towards the spring piece 7 towards the protrusion 8. The locking block 10 and the protrusion 8 are both located below the plane of the opening 11. The end of the key 21 facing the opening 11 is fixedly provided with a locking tongue 12 for inserting into the opening 11. The locking tongue 12 is inserted into the opening 11 and abuts against the inner wall of the buckle 9, driving the end of the buckle 9 away from the opening 11 to deform outward, so that the locking block 10 disengages from the protrusion 8 and completes the unlocking.

[0020] The connector is normally locked and cannot be disassembled by pressing or pulling. The spring 7 is placed between the base 5 and the sliding cover 6, and the sliding cover 6 and the base 5 are locked by the matching buckle 9 and the boss 8. The sliding cover 6 and the base 5 can only be unlocked by inserting the key 21 into the opening 11, which causes the buckle 9 to deform and move to both sides of the boss 8, so that the locking block 10 disengages from the boss 8. The unlocking is convenient and the disassembly is also convenient. It not only ensures the security of network communication, but also greatly improves the working efficiency compared with other locking mechanisms.

[0021] The base 5 has baffles 13 fixedly installed on both sides for fastening to the sliding cover 6 on both sides, and the sliding cover 6 is inserted between the two baffles 13 and the base 5. The lower end of the base 5 is fixedly provided with a hook 14 that passes through the fixing sleeve 4 and the fixing frame 3 and locks the base 5, the fixing frame 3 and the fixing sleeve 4. During installation, the spring clip 7 is inserted between the sliding cover 6 and the base 5, allowing the fiber optic cable to pass through the ferrule assembly pull rod tail sleeve 1, fixing sleeve 4, and fixing bracket 3 before connecting to the ferrule housing 2. The ferrule housing 2 is then inserted into the fixing bracket 3, and the fixing bracket 3 is inserted into the fixing sleeve 4. The aforementioned hook 14 of the base 5 passes through the fixing sleeve 4 and fixing bracket 3 to complete the connection between the base 5 and the fixing sleeve 4, and the connection between the spring clip 7 and the ferrule housing 2 is completed. In the case of incorrect polarity installation of the LC duplex connector, if the polarity of the two ferrule housings 2 needs to be reversed, the base 5 is removed from the fixing sleeve 4 by releasing the locking of the hook 14, and the spring clip 7 is removed from the ferrule housing 2. The ferrule housing 2 is then removed from the fixing bracket 3 to change the polarity. In high-density cabling environments, unlocking is convenient and disassembly is easy, ensuring network communication security and greatly improving work efficiency compared to other locking mechanisms.

[0022] A limiting block 15 is fixedly installed on the pull rod tail sleeve 1, abutting against the base 5. The lower end of the sliding cover 6 has a notch 16 for engaging the limiting block 15. On the side of the lower end of the sliding cover 6 away from the opening 11, there is a pressing block 17 that abuts against the spring piece 7 and can move and drive the spring piece 7 downward to unlock the adapter from the socket housing 2 after the sliding cover 6 is unlocked. The pressing block 17 is inverted triangular in shape. On the side wall of the spring piece 7 facing the key 21, there is a plug 18 for inserting into the side wall of the base 5. The side wall of the base 5 has a socket 19 for engaging the plug 18. The lower end of the sliding cover 6 has a sliding groove 20 to accommodate the plug 18. After unlocking, pull the tail sleeve 1 of the lever. Through the matching limit block 15 and notch 16, the tail sleeve 1 of the lever moves the sliding cover 6. The spring 7 is driven to deform downward by the pressure block 17 set on the sliding cover 6, thus unlocking the ferrule housing 2 and the adapter. The structure is simple and the unlocking operation is convenient.

[0023] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications to the specification derived therefrom are still within the protection scope of this utility model.

Claims

1. A type LC fiber optic connector with a locking tail sleeve and pull rod, characterized in that, It includes a pull rod tail sleeve (1), a ferrule housing (2) for installing optical fiber, and a mounting bracket (3) for installing the ferrule housing (2). The mounting bracket (3) is inserted into a mounting sleeve (4). The mounting sleeve (4) is provided with a base (5) for locking the mounting bracket (3) and the mounting sleeve (4). A sliding cover (6) is inserted into the base (5). The ferrule housing (2) is provided with a spring piece (7) for unlocking the ferrule housing (2) from the adapter after being pressed and deformed. The end of the spring clip (7) away from the aforementioned insert housing (2) is located between the base (5) and the sliding cover (6). A boss (8) is fixedly provided on the base (5). A buckle (9) is fixedly provided on the sliding cover (6) for engaging with the boss (8) to lock the sliding cover (6) and the base (5). A key (21) is provided on the sliding cover (6) for driving the buckle (9) to disengage from the boss (8) to unlock the sliding cover (6) and the base (5).

2. The LC-type fiber optic connector with locking tail sleeve and pull rod according to claim 1, characterized in that, Two buckles (9) are provided and located on both sides of the protrusion (8). One end of the buckle (9) facing the insert housing (2) is fixedly provided with a locking block (10) for locking onto the end face of the protrusion (8) facing the insert housing (2). The sliding cover (6) has an opening (11) for inserting the key (21) on the side away from the spring piece (7). The opening (11) is directly opposite the locking block (10). The buckle (9) is gradually inclined from the opening (11) towards the spring piece (7) towards the protrusion (8). The locking block (10) and the protrusion (8) are both located below the plane where the opening (11) is located.

3. The LC-type fiber optic connector with locking tail sleeve and pull rod according to claim 2, characterized in that, The key (21) is fixedly provided with a latch (12) for insertion into the opening (11) at one end facing the opening (11).

4. The LC-type fiber optic connector with locking tail sleeve and pull rod according to claim 1, characterized in that, The base (5) has fixed flanges (13) on both sides for fastening to the sliding cover (6) on both sides, and the sliding cover (6) is inserted between the two flanges (13) and the base (5).

5. The LC-type fiber optic connector with locking tail sleeve and pull rod according to claim 1, characterized in that, The lower end of the base (5) is fixedly provided with a hook (14) that passes through the fixing sleeve (4) and the fixing frame (3) to lock the base (5), the fixing frame (3) and the fixing sleeve (4).

6. The LC-type fiber optic connector with locking tail sleeve pull rod according to claim 1, characterized in that, A limiting block (15) is fixedly installed on the tail sleeve (1) and abuts against the base (5). The lower end of the sliding cover (6) is provided with a notch (16) for engaging the limiting block (15).

7. The LC-type fiber optic connector with locking tail sleeve and pull rod according to claim 6, characterized in that, The lower end of the sliding cover (6) away from the opening (11) has a pressure block (17) that abuts against the above-mentioned spring piece (7) and can move to drive the spring piece (7) downward to complete the unlocking of the adapter and the socket housing (2) after the sliding cover (6) is unlocked. The pressure block (17) is inverted triangular.

8. The LC-type fiber optic connector with locking tail sleeve and pull rod according to claim 1, characterized in that, The side wall of the spring (7) facing the key (21) is provided with a plug (18) for inserting into the side wall of the base (5). The side wall of the base (5) is provided with a hole (19) for engaging the plug (18). The lower end of the sliding cover (6) is provided with a groove (20) to accommodate the plug (18).

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