A LC type optical fiber connector with a lock pull rod

Abstract

This invention provides a locking lever-type LC fiber optic connector. It solves the problems of existing locking connectors being too bulky, having complex operations, causing inconvenience in high-density cabling environments, and the difficulty of reversing the polarity of the two ferrule assemblies when the polarity is incorrectly installed. This invention places a spring contact between the base and the sliding cover, and locks the sliding cover with a spring clip and a locking block. The adapter and ferrule assembly can only be unlocked by pressing the spring contact after removing the sliding cover with a key. The connector is normally locked; pressing or pulling cannot disassemble the connector. Only by using the unlocking key can the connector be quickly disassembled, making unlocking convenient and disassembly easier.

Description

Technical Field

[0001] This utility model relates to the field of optical fiber communication technology, and in particular to a locking lever-type LC optical fiber connector. 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 lever-type LC fiber optic connector, comprising a ferrule assembly, a tail sleeve, a base for mounting the ferrule assembly, and a sliding cover inserted into the base. The ferrule assembly is provided with a spring piece for unlocking the ferrule assembly from the adapter after being pressed and deformed. The spring piece is located between the sliding cover and the base. A spring buckle for locking the sliding cover is fixedly provided inside the base. The spring buckle is mounted on the base via a connecting piece. A locking block for locking the sliding cover is fixedly provided inside the sliding cover by abutting against the spring buckle. A key is provided on the sliding cover for driving the spring buckle to move so that the spring buckle disengages from the locking block after the connecting piece deforms, thereby unlocking the sliding cover.

[0004] Preferably, the base is fixedly provided with buckles on both sides for pressing against the sides of the sliding cover, and the sliding cover is inserted between the buckles and the base.

[0005] Preferably, the snap fastener is fixedly provided with a limiting block facing the locking block, and the connecting piece gradually tilts from bottom to top toward the ferrule assembly.

[0006] Preferably, the sliding cover has a through hole for inserting the key, the snap fastener is aligned with the through hole, and the front end of the key is fixedly provided with a protrusion for inserting into the through hole and pushing the snap fastener to move towards the mortise assembly and disengaging from the locking block.

[0007] Preferably, a slot is provided on the outer periphery of the end of the through hole away from the snap fastener, and a stop block is provided on the slot. A locking block is fixedly provided on the outer periphery of the protrusion and engages with the stop block and the through hole when the key is rotated.

[0008] Preferably, the locking block is semi-circular.

[0009] Preferably, a top block is fixedly provided on the spring sheet and abuts against the lower end surface of the sliding cover. A pressure block is fixedly provided on the side of the sliding cover away from the spring buckle, abutting against the top block, and capable of moving and driving the top block to cause the spring sheet to deform downward after the sliding cover is unlocked, thereby unlocking the adapter and the ferrule assembly. The pressure block is inverted triangular in shape.

[0010] Preferably, the end of the sliding cover away from the aforementioned insert assembly is fixedly provided with a fixing plate for abutting against the end face of the base after the sliding cover is locked, and the aforementioned through hole and slot are formed on the fixing plate.

[0011] Preferably, the key is provided with a gripping block for easy holding, and the gripping block has anti-slip grooves.

[0012] Preferably, the lower end of the base is provided with a first mounting seat for engaging the ferrule assembly, and the end of the spring piece away from the base is fixedly provided with a second mounting seat for mounting the ferrule assembly, and the ferrule assembly is inserted into the first mounting seat and the second mounting seat.

[0013] Compared with the prior art, this utility model sets the spring piece between the base and the sliding cover, and locks the sliding cover with the spring buckle and the locking block. The adapter and the ferrule assembly can only be unlocked by pressing the spring piece after the sliding cover is removed by the key. The connector is normally locked and cannot be disassembled by pressing or pulling. The connector can only be quickly disassembled by using the unlocking key. Unlocking is convenient and disassembly is more convenient. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model;

[0015] Figure 2 This is an exploded view of the present invention;

[0016] Figure 3 This is a sectional view of the present invention;

[0017] Figure 4 This is a schematic diagram of the sliding cover.

[0018] Figure 5 for Figure 2 Enlarged view of point A in the middle;

[0019] Figure 6 for Figure 3 Enlarged view of point B in the middle.

[0020] The markings in the diagram are: 1. Insert assembly; 2. Tail sleeve; 3. Base; 4. Sliding cover; 5. Spring piece; 6. Spring buckle; 7. Connecting piece; 8. Locking block; 9. Key; 10. Buckle plate; 11. Through hole; 12. Protrusion; 13. Slot; 14. Stop block; 15. Locking block; 16. Fixing plate; 17. Grip block; 18. Anti-slip groove; 19. First mounting base; 20. Second mounting base; 21. Limiting block; 22. Top block; 23. Pressure block. Detailed Implementation

[0021] The present invention will be further described below with reference to the embodiments shown in the accompanying drawings:

[0022] like Figures 1-6 As shown, a locking lever-type LC fiber optic connector includes a ferrule assembly 1, a tail sleeve 2, a base 3 for mounting the ferrule assembly 1, and a sliding cover 4 inserted into the base 3. The ferrule assembly 1 has a spring piece 5 for unlocking the ferrule assembly 1 from the adapter after being pressed and deformed. The spring piece 5 is located between the sliding cover 4 and the base 3. A spring latch 6 for locking the sliding cover 4 is fixedly installed inside the base 3. The spring latch 6 is mounted on the base 3 via a connecting piece 7. A locking block 8 for locking the sliding cover 4 by abutting against the spring latch 6 is fixedly installed inside the sliding cover 4. A key 9 is provided on the sliding cover 4 for driving the spring latch 6 to move, causing the connecting piece 7 to deform, disengaging the spring latch 6 from the locking block 8, and unlocking the sliding cover 4. Buckle plates 10 for pressing against the sides of the sliding cover 4 are fixedly installed on both sides of the base 3, and the sliding cover 4 is inserted between the buckle plates 10 and the base 3. By placing the spring piece 5 between the base 3 and the sliding cover 4, and locking the sliding cover 4 with the spring buckle 6 and the locking block 8, the adapter and ferrule assembly 1 can only be unlocked by removing the sliding cover 4 with the key 9. The connector is normally locked and cannot be disassembled by pressing or pulling. The connector can only be quickly disassembled by using the unlocking key 9. Unlocking is convenient and disassembly is more convenient.

[0023] A limiting block 21 is fixedly provided on the snap fastener 6, facing the locking block 8. The connecting piece 7 gradually tilts from bottom to top towards the mortise assembly 1. When locked, the sliding cover 4 is moved, and the locking block 8 strikes the limiting block 21 to limit and lock the sliding cover 4. The sliding cover 4 has a through hole 11 for inserting the key 9. The snap fastener 6 faces the through hole 11. The front end of the key 9 is fixedly provided with a protrusion 12 for inserting into the through hole 11 and pushing the snap fastener 6 towards the mortise assembly 1 to disengage from the locking block 8. A slot 13 is provided on the outer periphery of the end of the through hole 11 away from the snap fastener 6. A stop block 14 is provided on the slot 13. A locking block 15 is fixedly provided on the outer periphery of the protrusion 12, which engages with the stop block 14 and the through hole 11 when the key 9 is rotated. The locking block 15 is semi-circular. When unlocking, the protrusion 12 on the key 9 is inserted into the through hole 11 on the sliding cover 4. The protrusion 12 first contacts the spring buckle 6, and then the key 9 is inserted further, pushing the spring buckle 6 to move away from the through hole 11. The connecting piece 7 deforms and bends downward. The end of the spring buckle 6 away from the protrusion 12 moves downward with the connecting piece 7 and disengages from the plane where the locking block 8 is located. At this time, the limiting block 21 and the locking block 15 are not located on the same height plane. At this time, the locking block 15 moves with the protrusion 12 to the plane where the slot 13 is located. By rotating the key 9, the semi-circular locking block 15 rotates and is located between the stop block 14 and the through hole 11, completing the connection between the key 9 and the sliding cover 4. Pulling the key 9 away from the spring buckle 6 will remove the sliding cover 4 from the base 3. A top block 22 is fixedly provided on the spring piece 5, which abuts against the lower end surface of the sliding cover 4. Inside the sliding cover 4, on the side away from the spring buckle 6, a pressure block 23 is fixedly provided, which abuts against the top block 22 and can move as the sliding cover 4 is unlocked, driving the top block 22 to deform the spring piece 5 downward to unlock the adapter and the ferrule assembly 1. The pressure block 23 is inverted triangular in shape. During the process of pulling out the sliding cover 4, the pressure block 23 on the sliding cover 4 abuts against the top block 22, driving the top block 22 to deform the spring piece 5 downward, thereby unlocking the adapter and the ferrule assembly 1. The pressure block 23 hooks the top block 22 and drives the ferrule assembly 1 to disengage from the adapter, making unlocking convenient.

[0024] A fixing plate 16 is fixedly provided at the end of the sliding cover 4 away from the aforementioned insert assembly 1, for abutting against the end face of the base 3 after the sliding cover 4 is locked. The aforementioned through hole 11 and slot 13 are formed on the fixing plate 16. A gripping block 17 is fixedly provided on the key 9 for easy gripping, and the gripping block 17 has an anti-slip groove 18. A first mounting seat 19 for engaging the aforementioned insert assembly 1 is provided at the lower end of the base 3, and a second mounting seat 20 for mounting the aforementioned insert assembly 1 is fixedly provided at the end of the spring piece 5 away from the aforementioned base 3, and the insert assembly 1 is inserted into the first mounting seat 19 and the second mounting seat 20. During installation, first connect the fiber optic cable to the two ferrule assemblies 1 and complete the assembly with the tail sleeve 2. This is done by directly snapping the ferrule assemblies 1 into the first mounting base 19 and the second mounting base 20. Installation is quick and easy. If the polarity of the two ferrule assemblies 1 is incorrectly installed and needs to be interchanged, simply remove the ferrule assemblies 1 from the first mounting base 19 and the second mounting base 20, then reverse the polarity and reinstall them. This method is convenient and quick, and avoids the risk of damaging the connector's communication by touching the internal wiring of the fiber optic cable.

[0025] 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 locking lever-type LC fiber optic connector, characterized in that, The device includes a ferrule assembly (1), a tail sleeve (2), a base (3) for mounting the ferrule assembly (1), and a sliding cover (4) inserted into the base (3). The ferrule assembly (1) is provided with a spring piece (5) for unlocking the ferrule assembly (1) from the adapter after being pressed and deformed. The spring piece (5) is located between the sliding cover (4) and the base (3). A spring buckle (6) for locking the sliding cover (4) is fixedly provided inside the base (3). The spring buckle (6) is set on the base (3) through a connecting piece (7). A locking block (8) for locking the sliding cover (4) is fixedly provided inside the sliding cover (4) and a key (9) for driving the spring buckle (6) to move so that the spring buckle (6) disengages from the locking block (8) after the connecting piece (7) is deformed, thereby unlocking the sliding cover (4).

2. The LC-type fiber optic connector with locking lever as described in claim 1, characterized in that, The base (3) is fixedly provided with buckles (10) on both sides for pressing against the sides of the sliding cover (4), and the sliding cover (4) is inserted between the buckles (10) and the base (3).

3. The LC-type fiber optic connector with locking lever as described in claim 1, characterized in that, The connecting piece (7) gradually tilts from bottom to top toward the ferrule assembly (1).

4. The LC-type fiber optic connector with locking lever according to claim 3, characterized in that, The sliding cover (4) has a through hole (11) for inserting the key (9), the snap fastener (6) is directly opposite the through hole (11), and the front end of the key (9) is fixedly provided with a protrusion (12) for inserting into the through hole (11) and pushing the snap fastener (6) to move towards the mortise assembly (1) and disengaging from the locking block (8).

5. A locking lever-type LC fiber optic connector according to claim 4, characterized in that, A slot (13) is provided on the outer periphery of the through hole (11) away from the snap (6). A stop block (14) is provided on the slot (13). A locking block (15) is fixedly provided on the outer periphery of the protrusion (12) and engages between the stop block (14) and the through hole (11) after the key (9) is turned.

6. A locking lever-type LC fiber optic connector according to claim 5, characterized in that, The locking block (15) is semi-circular.

7. The LC-type fiber optic connector with locking lever according to claim 1, characterized in that, A top block (22) is fixedly provided on the spring piece (5) and abuts against the lower end face of the slide cover (4). A pressure block (23) is fixedly provided on the side of the slide cover (4) away from the spring buckle (6) and abuts against the top block (22). The pressure block (23) can move and drive the top block (22) to drive the spring piece (5) to deform downward to complete the unlocking of the adapter and the ferrule assembly (1) after the slide cover (4) is unlocked. The pressure block (23) is inverted triangular.

8. A locking lever-type LC fiber optic connector according to claim 4, characterized in that, The sliding cover (4) is fixedly provided with a fixing plate (16) at one end away from the above-mentioned insert assembly (1) for abutting against the end face of the base (3) after the sliding cover (4) is locked. The above-mentioned through hole (11) and slot (13) are opened on the fixing plate (16).

9. A locking lever-type LC fiber optic connector according to claim 1, characterized in that, The key (9) is fixedly provided with a gripping block (17) for easy holding, and the gripping block (17) is provided with anti-slip grooves (18).

10. A locking lever-type LC fiber optic connector according to claim 1, characterized in that, The lower end of the base (3) is provided with a first mounting seat (19) for snapping the above-mentioned ferrule assembly (1). The end of the spring piece (5) away from the base (3) is fixedly provided with a second mounting seat (20) for installing the above-mentioned ferrule assembly (1). The ferrule assembly (1) is inserted into the first mounting seat (19) and the second mounting seat (20).

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