Multi-core optical fiber connector

Abstract

The utility model discloses a multi-core optical fiber connector, which comprises a casing, a plugging port and a plugging chamber, the plugging port is arranged on the casing and used for plugging an optical fiber, the casing is also provided with a shielding mechanism used for protecting the plugging port, and the shielding mechanism comprises a shielding plate which is rotatably arranged on the casing and located in the plugging port. The limiting plate is arranged on the machine shell and used for limiting rotation of the shielding plate. According to the invention, through the shielding mechanism, dust or moisture can be prevented from entering the housing through the plugging port when the optical fiber is not inserted into the housing, and the service life of the housing is prolonged.

Description

Technical Field

[0001] This utility model relates to the field of optical fiber connector technology, specifically to a multi-core optical fiber connector. Background Art

[0002] In the field of modern communications, fiber optic connectors play a crucial role, especially multi-core fiber optic connectors, which are widely used in various complex communication networks. However, current fiber optic connectors suffer from a significant problem.

[0003] When a fiber optic connector is not plugged in, its interface on the housing is exposed. Since the interface is directly connected to the external environment, dust, moisture, and other impurities can easily enter the housing through the interface. Long-term accumulation of dust particles inside the housing can adhere to critical parts of the fiber optic connection, affecting signal transmission quality and increasing signal loss. Therefore, there is an urgent need for a multi-core fiber optic connector design that can effectively prevent dust and moisture from entering the housing when the fiber is not plugged in.

[0004] A multi-core fiber optic connector disclosed in Chinese utility model patent (authorization announcement number CN217279023U) quickly fixes the fiber optic connector to the connector through an elastic element, ensuring that the elastic element will not break easily, facilitating processing, and is also easy to clean, thus improving work efficiency.

[0005] However, in practical use, when the optical fiber is not plugged in, dust or moisture can enter the connector through the interface. Once dust particles enter the connector, due to their strong adhesion, they will gradually accumulate on the surface of the internal components. This dust accumulation will change the light propagation path, causing abnormal phenomena such as scattering and reflection of the optical signal during transmission, thereby increasing signal transmission loss and seriously affecting the quality and stability of optical fiber communication. Utility Model Content

[0006] To address the aforementioned issues, a multi-core fiber optic connector is provided. By incorporating a shielding mechanism, dust and moisture are effectively prevented from entering the connector when it is not being plugged in.

[0007] To address the problems of existing technologies, this utility model provides a multi-core fiber optic connector, including a housing, a plug interface formed on the housing for inserting optical fibers, and a plug chamber. The housing is also provided with a shielding mechanism for protecting the plug interface. The shielding mechanism includes a shielding plate rotatably disposed on the housing and located inside the plug interface, and a limiting plate disposed on the housing for limiting the rotation of the shielding plate.

[0008] Preferably, the shielding mechanism further includes a limiting rod and a positioning rod; a storage chamber for rotating the shielding plate is provided on the side of the housing near the insertion interface; the limiting rod is disposed in the storage chamber and is cylindrical in shape; the positioning rod is disposed in the storage chamber, and when the optical fiber is inserted into the housing, the shielding plate is in a rotating tilted state around the positioning rod into the insertion chamber.

[0009] Preferably, the shielding mechanism further includes an elastic traction rope; the elastic traction rope is disposed on the limiting plate and located inside the insertion interface, and is stretched when the shielding plate is tilted.

[0010] Preferably, the top of the housing is also provided with a limiting mechanism for fixing the fiber after insertion; the limiting mechanism includes a vertical block, a guide rod and a clamping block; the vertical block is slidably disposed on the housing in the vertical direction and close to one side of the insertion chamber; the guide rod has a pair and is symmetrically disposed in the insertion chamber, and the guide rod is close to both sides of the vertical block; the clamping block is disposed on the vertical block.

[0011] Preferably, the limiting mechanism further includes a limiting track, a moving block, a clamping roller, and a hinge rod; the limiting track has a pair symmetrically arranged in the insertion cavity; the moving block is slidably arranged on the limiting track in the horizontal direction; the clamping roller is rotatably arranged on the moving block; one end of the hinge rod is rotatably connected to the clamping block, and the other end of the hinge rod is rotatably connected to the moving block; when the vertical block descends in the vertical direction, the hinge rod is in an inclined state.

[0012] Preferably, the limiting mechanism further includes a fixed block, a pulling block, and a telescopic spring; the fixed blocks are a pair and symmetrically arranged on the housing and close to one side of the vertical block; the pulling blocks are a pair and slidably arranged on the fixed blocks respectively; the telescopic spring is arranged on the pulling block, one end of the telescopic spring is fixedly connected to the pulling block, and the other end of the telescopic spring is fixedly connected to the fixed block; the vertical block is provided with a snap-fit ​​groove that engages with the pulling block.

[0013] The advantages of this utility model compared to the prior art are:

[0014] 1. By setting up a shielding mechanism, this utility model can effectively prevent dust and moisture from entering the casing through the connector when not plugged in, thus extending the service life of the casing.

[0015] 2. This utility model uses an elastic traction rope to pull the optical fiber while simultaneously inserting a finger into the insertion interface and pressing the protective plate until the protective plate contacts the limiting rod, at which point the optical fiber can be pulled out.

[0016] 3. By setting a limiting mechanism, when it is necessary to disassemble the optical fiber, simply pull the vertical block upward to release the limiting and fixing of the clamping block and clamping roller on the optical fiber, thereby facilitating the quick disassembly of the optical fiber. Attached Figure Description

[0017] Figure 1 This is a first-view perspective three-dimensional structural diagram of a multi-core fiber optic connector according to this utility model.

[0018] Figure 2 This is a partial cross-sectional three-dimensional structural diagram of a multi-core fiber optic connector according to this utility model.

[0019] Figure 3 This is a front view of a multi-core fiber optic connector according to this utility model.

[0020] Figure 4 This is an enlarged structural diagram of point A in diagram 2.

[0021] Figure 5 This is a three-dimensional structural diagram of the shielding and limiting mechanism of a multi-core fiber optic connector according to this utility model.

[0022] Figure 6 This is a three-dimensional structural diagram of the clamping block and clamping roller of a multi-core fiber optic connector of this utility model in the state of fixing and limiting the fiber optic cable.

[0023] Figure 7 yes Figure 6 Enlarged structural diagram at point C.

[0024] Figure 8 This is a three-dimensional structural diagram of a multi-core fiber optic connector of this utility model, showing the vertical block rising and the clamping roller moving away.

[0025] Figure 9 yes Figure 2 Enlarged structural diagram at point B in the middle.

[0026] The following are the labels in the diagram: 1. Housing; 2. Socket; 3. Socket chamber; 4. Shielding mechanism; 41. Shielding plate; 411. Storage chamber; 42. Limiting plate; 43. Limiting rod; 44. Positioning rod; 45. Elastic traction rope; 5. Limiting mechanism; 51. Vertical block; 52. Guide rod; 521. Return spring; 53. Pressing block; 54. Limiting track; 55. Moving block; 56. Pressing roller; 57. Hinge rod; 58. Fixed block; 59. Pulling block; 591. Telescopic spring; 592. Snap-fit ​​groove. Detailed Implementation

[0027] To further understand the features, technical means, and specific objectives and functions achieved by this utility model, the following detailed description of this utility model is provided in conjunction with the accompanying drawings and specific embodiments.

[0028] See Figures 1-3As shown, a multi-core fiber optic connector includes a housing 1, a plug interface 2 formed on the housing 1 for inserting fiber optic cables, and a plug chamber 3. The housing 1 is also provided with a shielding mechanism 4 for protecting the plug interface 2. The shielding mechanism 4 includes a shielding plate 41 rotatably disposed on the housing 1 and located inside the plug interface 2, and a limiting plate 42 disposed on the housing 1 for limiting the rotation of the shielding plate 41.

[0029] Housing 1 is a fiber optic connector. When installing the fiber optic cable into housing 1, the cable must first be inserted into the connector 2 on housing 1. During insertion, the shield 41 rotates and retracts into housing 1. When no fiber optic cable is inserted, the shield 41 blocks connector 2 and is in contact with the limiting plate 42, effectively preventing dust and moisture from entering housing 1 when no connection is being made.

[0030] See Figures 2-4 As shown, the shielding mechanism 4 also includes a limiting rod 43 and a positioning rod 44; a storage chamber 411 for rotating the shielding plate 41 is provided on the side of the housing 1 near the insertion interface 2; the limiting rod 43 is disposed in the storage chamber 411 and is cylindrical; the positioning rod 44 is disposed in the storage chamber 411. When the optical fiber is inserted into the housing 1, the shielding plate 41 is in a rotating tilted state around the positioning rod 44 towards the insertion chamber 3.

[0031] During the insertion of the optical fiber into the insertion chamber 3 through the insertion interface 2, the optical fiber first comes into contact with the shielding plate 41. Upon contact, the shielding plate 41 begins to rotate along the positioning rod 44 under the contact of the optical fiber, and continues to rotate until it contacts the limiting rod 43 in the receiving chamber 411 and stops. Then the optical fiber continues to be inserted. When the optical fiber is successfully inserted into the insertion chamber 3, the shielding plate 41 no longer contacts the limiting rod 43. This allows the shielding plate 41 to rotate smoothly and be stored away when it comes into contact with the optical fiber.

[0032] See Figure 4 As shown, the shielding mechanism 4 also includes an elastic traction rope 45; the elastic traction rope 45 is disposed on the limiting plate 42 and located inside the insertion interface 2, and the elastic traction rope 45 is in a stretched state when the shielding plate 41 is in an inclined state.

[0033] When the shield plate 41 rotates along the positioning rod 44, the elastic traction rope 45 is stretched. When it is necessary to disassemble the optical fiber, pull the optical fiber while inserting your finger into the plug interface 2 and pressing the shield plate 41 until the shield plate 41 contacts the limiting rod 43, and then the optical fiber can be pulled out.

[0034] See Figures 5-7As shown, the top of the housing 1 is also provided with a limiting mechanism 5 for fixing the optical fiber after insertion; the limiting mechanism 5 includes a vertical block 51, a guide rod 52 and a clamping block 53; the vertical block 51 is slidably disposed on the housing 1 in the vertical direction and close to one side of the insertion chamber 3; there is a pair of guide rods 52 symmetrically disposed in the insertion chamber 3, and the guide rods 52 are close to both sides of the vertical block 51; the clamping block 53 is disposed on the vertical block 51.

[0035] A return spring 521 is provided on the guide rod 52. One end of the return spring 521 is fixed to the insertion chamber 3, and the other end is fixed to the clamping block 53. During the process of inserting the optical fiber into the insertion chamber 3, the vertical block 51 is first pulled vertically. During this process, the return spring 521 is stretched, and the optical fiber can be smoothly inserted into the insertion chamber 3 through the clamping block 53. Then, the pulling force on the vertical block 51 is released, causing the return spring 521 to release, and causing the vertical block 51 and the clamping block 53 to fix the inserted optical fiber, preventing the optical fiber from loosening or shifting due to external forces or other factors during use.

[0036] See Figure 6 and Figure 7 As shown, the limiting mechanism 5 also includes a limiting track 54, a moving block 55, a pressing roller 56, and a hinge rod 57; the limiting track 54 has a pair and is symmetrically arranged in the insertion chamber 3; the moving block 55 is slidably arranged on the limiting track 54 in a horizontal straight direction; the pressing roller 56 is rotatably arranged on the moving block 55; one end of the hinge rod 57 is rotatably connected to the pressing block 53, and the other end of the hinge rod 57 is rotatably connected to the moving block 55. When the vertical block 51 descends in the vertical direction, the hinge rod 57 is in an inclined state.

[0037] When the vertical block 51 descends vertically, the hinge rod 57, which is rotatably connected to the vertical block 51, pushes the movable block 55, which is slidably mounted on the limiting track 54, to slide horizontally. When the movable block 55 is driven by the hinge rod 57, it causes the rotating clamping roller 56 mounted on the movable block 55 to move synchronously until the clamping roller 56 contacts the optical fiber. After contact, the external of the optical fiber is limited and fixed. In this way, when the vertical block 51 descends vertically, the movable block 55 can be driven by the hinge rod 57 to slide closer to the optical fiber. When it is necessary to disassemble the optical fiber, simply pull the vertical block 51 upwards to release the clamping block 53 and the clamping roller 56 from limiting and fixing the optical fiber, thereby facilitating the quick disassembly of the optical fiber.

[0038] See Figure 8 and Figure 9As shown, the limiting mechanism 5 also includes a fixed block 58, a pulling block 59, and a telescopic spring 591; the fixed block 58 has a pair and is symmetrically arranged on the housing 1 and close to one side of the vertical block 51; the pulling block 59 has a pair and is slidably arranged on the fixed block 58 respectively; the telescopic spring 591 is arranged on the pulling block 59, one end of the telescopic spring 591 is fixedly connected to the pulling block 59, and the other end of the telescopic spring 591 is fixedly connected to the fixed block 58; the vertical block 51 is provided with a snap-fit ​​groove 592 that engages with the pulling block 59.

[0039] Initially, the vertical block 51 is in an upward state under the pushing force of the return spring 521. At this time, the clamping block 53 and the clamping roller 56 do not fix the optical fiber in the insertion chamber 3, and the pulling block 59 is engaged in the insertion slot 592. When the vertical block 51 begins to descend vertically, the pulling block 59 is pulled first, causing it to slide away from the vertical block 51. During the pulling process, the telescopic spring 591 is compressed until the pulling block 59 disengages from the insertion slot 592, at which point the vertical block 51 can descend vertically. After the vertical block 51 completes its vertical descent, the pulling force on the pulling block 59 is released, and the telescopic spring 591 is released, pushing the pulling block 59 to slide horizontally until it abuts against the top of the vertical block 51. At this point, the vertical block 51 is in a descending state, and the clamping block 53 and the clamping roller 56 restrict and fix the optical fiber.

[0040] When installing the optical fiber into the housing 1, the fiber is first inserted into the connector 2 of the housing 1. During insertion, the shield 41 rotates and retracts into the housing 1. When the fiber is not inserted, the shield 41 blocks the connector 2 and contacts the limiting plate 42 to prevent dust and moisture from entering. When the fiber is inserted into the insertion chamber 3 through the connector 2, it first contacts the shield 41, causing the shield 41 to rotate along the positioning rod 44 until it contacts the limiting rod 43 in the storage chamber 411, after which the fiber continues to be inserted. When the fiber is successfully inserted, the shield 41 no longer contacts the limiting rod 43, during which the elastic traction rope 45 is stretched. When removing the fiber, pull the fiber while pressing the shield 41 with your fingers until it contacts the limiting rod 43, and then pull out the fiber. One end of the return spring 521 on the guide rod 52 is fixed to the insertion chamber 3, and the other end is fixed to the abutment block 53. During the insertion of the optical fiber into the splice chamber 3, the vertical block 51 is pulled vertically, stretching the return spring 521, and the optical fiber is inserted through the clamping block 53. Releasing the tension on the vertical block 51 releases the return spring 521, causing the vertical block 51 and clamping block 53 to fix the optical fiber. When the vertical block 51 descends vertically, the hinge rod 57, rotatably connected to it, pushes the moving block 55 on the limiting track 54 to slide horizontally, causing the clamping roller 56 on the moving block 55 to move synchronously until the clamping roller 56 contacts the optical fiber, providing external limiting and auxiliary fixation for the optical fiber. When disassembling the optical fiber, the vertical block 51 is pulled upwards, releasing the clamping block 53 and clamping roller 56 from limiting the optical fiber. In the initial state, the vertical block 51 is in an upward state under the action of the return spring 521, the clamping block 53 and clamping roller 56 do not fix the optical fiber, and the pulling block 59 is engaged in the clamping groove 592. When the vertical block 51 descends, first pull the set pull block 59 away from the vertical block 51, compressing the telescopic spring 591 until the pull block 59 disengages from the locking groove 592, and the vertical block 51 descends. After the vertical block 51 has descended, release the tension, and the telescopic spring 591 pushes the pull block 59 to slide until it abuts against the top of the vertical block 51. At this time, the vertical block 51 descends, and the clamping block 53 and the clamping roller 56 restrict and fix the optical fiber.

[0041] The above embodiments only illustrate one or more implementations of this utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of this utility model. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the appended claims.

Claims

1. A multi-core fiber optic connector, comprising a housing (1), a jack (2) formed on the housing (1) for inserting an optical fiber, and a jacking chamber (3); characterized in that, The housing (1) is also provided with a shielding mechanism (4) for protecting the plug-in interface (2); The shielding mechanism (4) includes a shielding plate (41) rotatably disposed on the housing (1) and located in the plug interface (2), and a limiting plate (42) disposed on the housing (1) to limit the rotation of the shielding plate (41). The blocking mechanism (4) also includes a limiting rod (43) and a positioning rod (44). A storage chamber (411) for rotating the shield (41) is provided on the side of the housing (1) near the plug-in interface (2). The limiting rod (43) is set inside the storage chamber (411), and the limiting rod (43) is cylindrical; The positioning rod (44) is set in the storage chamber (411). When the optical fiber is inserted into the housing (1), the shield (41) is in a rotating tilted state around the positioning rod (44) towards the insertion chamber (3).

2. A multi-core fiber optic connector according to claim 1, characterized in that, The shielding mechanism (4) also includes an elastic traction rope (45); The elastic traction rope (45) is set on the limiting plate (42) and located inside the insertion interface (2). When the protective plate (41) is tilted, the elastic traction rope (45) is in a stretched state.

3. A multi-core fiber optic connector according to claim 1, characterized in that, The top of the housing (1) is also provided with a limiting mechanism (5) for fixing the fiber optic cable after insertion; The limiting mechanism (5) includes a vertical block (51), a guide rod (52), and a clamping block (53); The vertical block (51) is vertically slidably mounted on the housing (1) and close to one side of the insertion chamber (3); The guide rods (52) are a pair and symmetrically arranged in the insertion chamber (3), and the guide rods (52) are close to both sides of the vertical block (51); the abutting block (53) is arranged on the vertical block (51).

4. A multi-core fiber optic connector according to claim 3, characterized in that, The limiting mechanism (5) also includes a limiting track (54), a moving block (55), a clamping roller (56), and a hinge rod (57). The limiting rails (54) are a pair and symmetrically arranged in the insertion chamber (3); The movable block (55) is slidably positioned on the limiting track (54) in the horizontal direction; The clamping roller (56) is rotatably mounted on the moving block (55); One end of the hinge rod (57) is rotatably connected to the abutment block (53), and the other end of the hinge rod (57) is rotatably connected to the moving block (55). When the vertical block (51) descends vertically, the hinge rod (57) is tilted.

5. A multi-core fiber optic connector according to claim 4, characterized in that, The limiting mechanism (5) also includes a fixed block (58), a pulling block (59), and a telescopic spring (591). The fixing blocks (58) are a pair and symmetrically arranged on the top of the housing (1) and close to one side of the vertical block (51); The pull block (59) has a pair and is slidably disposed on the fixed block (58); A telescopic spring (591) is set on the pull block (59). One end of the telescopic spring (591) is fixedly connected to the pull block (59), and the other end of the telescopic spring (591) is fixedly connected to the fixed block (58). The vertical block (51) has a locking groove (592) that engages with the pulling block (59).

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