Anti-interference optical fiber assembly connector

By designing sleeves and protective covers, the problems of adhesive fixing and rigid support in existing fiber optic assembly connectors are solved, achieving glue-free installation and flexible support, and improving the reusability and anti-interference capability of fiber optic assembly connectors.

CN224122790UActive Publication Date: 2026-04-14YOSEMI SEMICONDUCTOR TECHNOLOGY (WUXI) CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-05-29
Publication Date
2026-04-14

AI Technical Summary

Technical Problem

Existing anti-interference fiber optic assembly connectors require adhesives for installation, which damages the structure during disassembly. Furthermore, the rigid support of the fiber optic core is susceptible to impact damage, affecting its service life.

Method used

It adopts a sleeve and protective cover structure. The sleeve is made of stainless steel, and the protective cover is equipped with shock-absorbing components and rubber blocks. It is fixed by threaded connection and clamping block to achieve glue-free installation and flexible support for the fiber optic core, absorbing vibration and impact.

Benefits of technology

It achieves reusability and interference resistance of fiber optic assembly connectors, reduces the risk of damage to the fiber optic core, and simplifies the installation and disassembly process.

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Abstract

The utility model discloses an anti-interference optical fiber assembly connector, which relates to the technical field of optical fiber connection and comprises an optical fiber protective layer, an optical fiber inner core is arranged at the top of the optical fiber protective layer, a sleeve is sleeved on the outer surface of the optical fiber protective layer, a top ring is arranged at the top end of the sleeve, and a protective cover is in threaded connection with the top end of the top ring. The top of the protective cover is matched with the optical fiber inner core, and a plurality of damping assemblies are annularly distributed in the protective cover. According to the utility model, a series of structures are arranged, so that the optical fiber assembly connector can be installed without using adhesive materials such as glue, the operation steps are simple, the structure does not need to be damaged during disassembly, the optical fiber assembly connector is convenient to recycle, and the optical fiber inner core is flexibly supported; the damping assembly and the rubber block absorb impact force, and if the protective cover deforms due to stress, the damping assembly shrinks to absorb the impact force, so that the optical fiber inner core is prevented from being damaged.
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Description

Technical Field

[0001] This utility model relates to the field of optical fiber connection technology, specifically to an anti-interference optical fiber assembly connector. Background Technology

[0002] A fiber optic assembly connector is a pre-assembled, integrated fiber optic connection component that includes optical fibers, connectors, protective structures, and other auxiliary components. It is used to achieve fast and reliable connections between optical fibers and between optical fibers and devices. Its core function is to ensure stable transmission of optical signals in complex environments, while simplifying installation and maintenance processes.

[0003] Optical fibers themselves are protected from electromagnetic interference by a protective layer. However, the protective layer needs to be stripped at the connection end of the optical fiber. After stripping, the inner core of the optical fiber needs to be protected and treated against interference. However, most existing anti-interference optical fiber assemblies require adhesives for auxiliary fixation during installation. Disassembly requires damage to the original structure, making them unusable. Furthermore, the inner core of the optical fiber is mostly rigid. When the connector is subjected to impact, the impact force and vibration generated will affect the inner core of the optical fiber, which may cause the inner core of the optical fiber to break, affecting the service life of the optical fiber. Utility Model Content

[0004] The purpose of this invention is to provide an anti-interference fiber optic assembly connector to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an anti-interference fiber optic assembly connector, comprising a fiber optic protective layer, a fiber optic core disposed on the top of the fiber optic protective layer, a sleeve fitted onto the outer surface of the fiber optic protective layer, a top ring disposed on the top of the sleeve, a protective cover threadedly connected to the top of the top ring, the top of the protective cover matching the fiber optic core, a plurality of shock-absorbing components arranged in a ring inside the protective cover, a rubber block disposed at one end of each of the shock-absorbing components near the fiber optic core, limit blocks disposed on both sides of the sleeve, a locking block disposed inside each of the two limit blocks, and a limit block extending from the top of the locking block.

[0006] Preferably, the circumferential surface of the top ring is provided with a first threaded groove, and the inner wall of the protective cover is provided with a second threaded groove. The first threaded groove and the second threaded groove are matched. When installing the protective cover, the bottom end of the protective cover is aligned with the top ring, and then the protective cover is rotated. The protective cover is locked by the threaded connection between the first threaded groove and the second threaded groove, so that the protective cover is fixedly installed on the outer surface of the top ring. At this time, the top of the optical fiber core extends out of the protective cover, and the protective cover protects the optical fiber core.

[0007] Preferably, a locking block is provided at the bottom end of the sleeve, and a nut is threadedly connected to the outer surface of the locking block. The locking block is in the shape of a conical column, and a rubber anti-slip block is provided inside the locking block. When the nut is twisted and moves downward, the bottom of the locking block will contract, clamping the optical fiber protective layer, and the sleeve will not be displaced by friction.

[0008] Preferably, both sides of the protective cover are provided with slots that match the locking block. When the locking block is pushed upward, the top of the locking block can be inserted into the slot to limit the protective cover and fix it in place to prevent it from falling off.

[0009] Preferably, each of the two card blocks has a protrusion on one side, and a limiting block extends from one side of the protrusion. A groove matching the protrusion is opened on one side of the limiting block, and the limiting block can move inside the groove to drive the card block to perform linear up and down movement.

[0010] Preferably, the shock absorption assembly includes a damping rod and a spring located on the outer surface of the damping rod. The damping rod and the spring work together to allow the shock absorption assembly to absorb vibrations. The fiber optic core is supported by the damping rod and the rubber block. During use, external vibrations to the fiber optic core are absorbed by the shock absorption assembly, reducing the impact on data transmission.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] 1. This anti-interference fiber optic assembly connector uses a sleeve and a protective cover, both made of stainless steel, to provide a certain degree of anti-interference capability. The sleeve is installed on the outer surface of the fiber optic protective layer, and the protective cover is threaded to the outer surface of the top ring at the top of the sleeve and reinforced by the locking blocks on both sides of the sleeve. This allows the fiber optic assembly connector to be installed without the use of adhesive materials such as glue. The operation is simple, and disassembly does not require damage to the structure, making it easy to reuse.

[0013] 2. This anti-interference fiber optic assembly connector supports the fiber optic core through shock-absorbing components and rubber blocks inside the protective cover, making the fiber optic core flexibly supported. When the protective cover is subjected to external impact and vibrates, the shock-absorbing components and rubber blocks absorb the impact force. If the protective cover is deformed by force, the shock-absorbing components contract to absorb the impact force, thus preventing damage to the fiber optic core. Attached Figure Description

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

[0015] Figure 2 This is a schematic diagram of the overall structure of this utility model in disassembled state;

[0016] Figure 3This is a cross-sectional schematic diagram of the overall structure of this utility model.

[0017] In the diagram: 1. Fiber optic protective layer; 2. Sleeve; 3. Protective cover; 4. Fiber optic core; 5. Slot; 6. First threaded groove; 7. Limiting block; 8. Locking block; 9. Nut; 10. Protrusion; 11. Locking block; 12. Top ring; 13. Rubber block; 14. Shock absorption assembly; 15. Second threaded groove. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0020] like Figures 1 to 3As shown, the anti-interference fiber optic assembly connector of this embodiment includes a fiber optic protective layer 1. A fiber optic core 4 is disposed on the top of the fiber optic protective layer 1. The fiber optic protective layer 1 is a flexible protective layer, typically made of soft plastic, to buffer external impacts and prevent fiber core breakage. The fiber optic core 4 contains a cladding layer, a protective layer made of quartz glass. The quartz glass is tightly attached to the fiber core, and through the refractive index difference, it allows the optical signal to propagate within the fiber core, reducing loss. A sleeve 2, made of stainless steel, is fitted onto the outer surface of the fiber optic protective layer 1, further enhancing the protective effect of the fiber optic protective layer 1. A top ring 12 is disposed at the top of the sleeve 2, matching the fiber optic core 4 and locking onto the top of the fiber optic protective layer 1 to limit the sleeve 2. A protective cover 3, made of stainless steel, is threaded to the top of the top ring 12. The protective cover 3 protects the fiber optic core 4 internally, preventing damage from external impacts. The top of the protective cover 3 is connected to the fiber optic core 4. The top of the fiber core 4 extends out of the protective cover 3, placing the fiber core outside the protective cover 3 for easy connection and data transmission. Several shock-absorbing components 14 are arranged in a ring inside the protective cover 3. A rubber block 13 is placed near one end of each shock-absorbing component 14 close to the fiber core 4. The shock-absorbing components 14 and the rubber blocks 13 work together to apply a holding force to the fiber core 4, flexibly fixing it inside the protective cover 3. When the protective cover 3 vibrates due to external influences, the vibration can be absorbed by the shock-absorbing components 14, reducing the vibration experienced by the fiber core 4. If the protective cover 3 deforms due to impact, the shock-absorbing components 14 absorb the impact force, preventing damage to the fiber core 4. Limiting blocks 7 are provided on both sides of the sleeve 2. Each limiting block 7 contains a locking block 11, with the top of the locking block 11 extending outwards. When the protective cover 3 is installed on the outer surface of the top ring 12, the locking block 11 is pushed upwards, reinforcing the protective cover 3 and preventing displacement.

[0021] Specifically, the circumferential surface of the top ring 12 is provided with a first threaded groove 6, and the inner wall of the protective cover 3 is provided with a second threaded groove 15. The first threaded groove 6 and the second threaded groove 15 are matched. When installing the protective cover 3, the bottom end of the protective cover 3 is aligned with the top ring 12, and then the protective cover 3 is rotated. The protective cover 3 is locked by the mutual threaded connection between the first threaded groove 6 and the second threaded groove 15, so that the protective cover 3 is fixedly installed on the outer surface of the top ring 12. At this time, the top of the optical fiber core 4 extends out of the protective cover 3, and the protective cover 3 protects the optical fiber core 4.

[0022] Furthermore, a locking block 8 is provided at the bottom of the sleeve 2. A nut 9 is threadedly connected to the outer surface of the locking block 8. The locking block 8 is in the shape of a conical column. A rubber anti-slip block is provided inside the locking block 8. When the nut 9 is twisted and moved downward, the bottom of the locking block 8 will contract and lock the optical fiber protective layer 1. The sleeve 2 will not be displaced by friction.

[0023] Furthermore, both sides of the protective cover 3 are provided with slots 5 that match the locking block 11. When the locking block 11 is pushed upward, the top of the locking block 11 can be inserted into the slot 5 to limit the protective cover 3, so that the protective cover 3 is fixed and prevents it from falling off.

[0024] Furthermore, each of the two card blocks 11 has a protrusion 10 on one side, and a limiting block 7 extends from one side of the protrusion 10. A slot matching the protrusion 10 is opened on one side of the limiting block 7. The limiting block 7 can move inside the slot so as to drive the card block 11 to perform vertical linear movement.

[0025] Furthermore, the shock absorption assembly 14 includes a damping rod and a spring located on the outer surface of the damping rod. The damping rod and the spring work together to allow the shock absorption assembly 14 to absorb vibrations. The fiber optic core 4 is supported by the damping rod and the rubber block 13. During use, the vibrations generated by the external environment on the fiber optic core 4 will be absorbed by the shock absorption assembly 14, reducing the impact on data transmission.

[0026] The usage method of this embodiment is as follows: When installing the anti-interference fiber optic assembly connector, first, sleeve 2 is fitted onto the outer surface of the fiber optic protective layer 1, so that the top ring 12 is locked at the top of the fiber optic protective layer 1, limiting the sleeve 2. Then, the nut 9 is turned downwards, and the bottom of the locking block 8 will retract, locking the fiber optic protective layer 1 through the rubber anti-slip block. The sleeve 2 will not be displaced by friction. Then, the bottom end of the protective cover 3 is aligned with the top ring 12, and then the protective cover 3 is rotated. The protective cover 3 is locked by the mutual threaded connection between the first threaded groove 6 and the second threaded groove 15, so that the protective cover 3 is fixedly installed on the outer surface of the top ring 12. Then, when the card block 11 is pushed upward, the top of the card block 11 can be inserted into the card slot 5 to limit the protective cover 3, so that the protective cover 3 is fixed and prevents it from falling off. The top of the fiber core 4 extends out of the protective cover 3. The shock absorption component 14 and the rubber block 13 work together to apply a holding force to the fiber core 4, so that the fiber core 4 is flexibly fixed inside the protective cover 3. When the protective cover 3 is affected by external influence and vibrates, the vibration can be absorbed by the shock absorption component 14 to reduce the vibration received by the fiber core 4. If the protective cover 3 is deformed by impact, the shock absorption component 14 absorbs the impact force to prevent the fiber core 4 from being damaged.

[0027] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. An interference resistant fiber optic assembly connector comprising a fiber optic protection layer (1), characterized in that: The top of the optical fiber protective layer (1) is provided with an optical fiber core (4). A sleeve (2) is sleeved on the outer surface of the optical fiber protective layer (1). A top ring (12) is provided at the top of the sleeve (2). A protective cover (3) is threaded to the top of the top ring (12). The top of the protective cover (3) matches the optical fiber core (4). Several shock-absorbing components (14) are arranged in a ring inside the protective cover (3). A rubber block (13) is provided at one end of each of the shock-absorbing components (14) near the position of the optical fiber core (4). Limiting blocks (7) are provided on both sides of the sleeve (2). A locking block (11) is provided inside each of the two limiting blocks (7). The top of the locking block (11) extends out of the limiting block (7).

2. The anti-tamper fiber optic assembly connector of claim 1, wherein: The top ring (12) has a first threaded groove (6) on its circumferential surface, and the inner wall of the protective cover (3) has a second threaded groove (15), wherein the first threaded groove (6) and the second threaded groove (15) are matched.

3. The anti-tamper fiber optic assembly connector of claim 1, wherein: The bottom end of the sleeve (2) is provided with a locking block (8), and the outer surface of the locking block (8) is threaded with a nut (9).

4. The anti-interference fiber optic assembly connector according to claim 1, characterized in that: Both sides of the protective cover (3) are provided with slots (5) that match the card block (11).

5. The anti-interference fiber optic assembly connector according to claim 1, characterized in that: Each of the two card blocks (11) has a protrusion (10) on one side, and a limiting block (7) extends from one side of the protrusion (10).

6. The anti-interference fiber optic assembly connector according to claim 1, characterized in that: The damping assembly (14) includes a damping rod and a spring located on the outer surface of the damping rod.