Optical fiber connector with anti-inverted plug function

By setting anti-inversion blocks on the fiber optic adapter housing to prevent incorrect angle insertion, the structural damage caused by misinsertion of fiber optic connectors is solved, and efficient and reliable optical signal transmission is achieved.

CN224471870UActive Publication Date: 2026-07-07DONGGUAN CITY GUANGYE ELECTRONICS CO LTD +1

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
DONGGUAN CITY GUANGYE ELECTRONICS CO LTD
Filing Date
2025-07-24
Publication Date
2026-07-07

AI Technical Summary

Technical Problem

Existing fiber optic connectors lack effective anti-misfit mechanisms, resulting in inaccurate mating between the fiber optic plug and the adapter, causing damage to the internal structure of the fiber optic cable and affecting the quality and stability of optical signal transmission.

Method used

An anti-reverse insertion block is installed on the housing of the fiber optic adapter. This block prevents the fiber optic plug from being inserted at an incorrect angle through mechanical interference, ensuring that the fiber optic plug and adapter can move freely at the correct angle and become an obstruction at an incorrect angle.

Benefits of technology

It effectively prevents damage to the internal structure of optical fibers, improves installation efficiency and reliability, reduces maintenance costs and downtime, ensures stable and low-loss transmission of optical signals, and meets the high reliability requirements of optical communication systems.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to connector technical field discloses a kind of optical fiber connectors with anti-inverted insertion function, by adding anti-inverted insertion stopper in the shell of optical fiber adapter, so that it can be inserted with optical fiber plug to keep open gap when optical fiber plug is correctly inserted, and mechanical interference is immediately formed when it is not inserted at correct angle, forcibly prevent optical fiber plug from continuing to insert, so as to completely eliminate the risk of optical fiber internal structure damage caused by misplug;Meanwhile, the structure can be prevented without additional tools or complex training, significantly improve the efficiency and reliability of field installation, while reducing maintenance cost and downtime, ensure that optical signal is long-term stable, low-loss transmission, fully meet the stringent requirements of high reliability of optical communication system.
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Description

Technical Field

[0001] This utility model relates to the field of connector technology, and in particular to an optical fiber connector with anti-reverse insertion function. Background Technology

[0002] As a key component in the field of optical communication, fiber optic connectors are mainly composed of two core parts: fiber optic plugs and fiber optic adapters.

[0003] Under current technological conditions, when performing fiber optic plug insertion, the lack of effective guidance and anti-misinsertion mechanisms means that users are highly likely to make mistakes due to negligence or lack of experience. Specifically, users may forcefully insert the fiber optic plug at incorrect angles, including but not limited to 90 degrees, 270 degrees, and other special angles.

[0004] If the above-mentioned mis-insertion occurs, the fiber optic plug and fiber optic adapter cannot achieve a precise and stable connection, which will cause irreversible damage to the delicate optical structure inside the fiber. This damage will seriously affect the normal transmission of optical signals in the fiber, leading to optical signal attenuation and distortion, and ultimately causing the entire fiber optic connector product to malfunction and fail to meet the stringent requirements of optical communication systems for signal transmission quality and stability.

[0005] Given this significant deficiency in the existing technology, in order to improve the reliability of fiber optic connectors and ensure the stable operation of optical communication systems, it is imperative to make comprehensive and in-depth improvements to the existing fiber optic connector technology.

[0006] The above information is provided as background information only to aid in understanding this disclosure and does not constitute an assertion or admission that any of the above content can be used as prior art relative to this disclosure. Utility Model Content

[0007] This invention provides a fiber optic connector with anti-reverse insertion function to prevent incorrect fiber optic plug insertion through mechanical interference.

[0008] To achieve the above objectives, this utility model provides the following technical solution:

[0009] A fiber optic connector with anti-reverse insertion function includes a fiber optic adapter and a fiber optic plug; wherein,

[0010] The fiber optic adapter includes an adapter body and a housing;

[0011] The adapter body has a socket that is compatible with the optical fiber plug;

[0012] The outer casing is fitted onto the outer periphery of the adapter body, and an anti-reverse insertion block is provided on the side of the outer casing corresponding to the socket;

[0013] When inserted at the correct angle, there is a gap between the fiber optic plug and the anti-reverse insertion stop, so that the fiber optic plug can be properly inserted into the socket.

[0014] When the fiber optic plug is inserted at an incorrect angle, mechanical interference occurs between the fiber optic plug and the anti-inversion stop, preventing the fiber optic plug from being inserted into the socket.

[0015] Furthermore, in the fiber optic connector with anti-reverse insertion function, the anti-reverse insertion stop is integrally formed with the outer shell.

[0016] Furthermore, in the fiber optic connector with anti-reverse insertion function, the anti-reverse insertion block is a detachable independent component that is detachably connected to the outer shell.

[0017] Furthermore, in the fiber optic connector with anti-reverse insertion function, the anti-reverse insertion block is detachably connected to the housing by means of a snap, screw or adhesive to adapt to different models of fiber optic plugs.

[0018] Furthermore, in the fiber optic connector with anti-reverse insertion function, the anti-reverse insertion stop is made of metal or high-strength plastic.

[0019] Furthermore, in the fiber optic connector with anti-reverse insertion function, the thickness of the anti-reverse insertion block is 0.5mm to 2mm.

[0020] Furthermore, in the fiber optic connector with anti-reverse insertion function, the anti-reverse insertion block includes a connecting section and a stop section;

[0021] One end of the connecting section is connected to the outer shell, and the other end is connected to the stop section;

[0022] The stop section is perpendicular to the connecting section and also perpendicular to the axis of the insertion hole.

[0023] Furthermore, in the fiber optic connector with anti-reverse insertion function, the outer shell is provided with pins for fixing the entire fiber optic connector.

[0024] Furthermore, in the fiber optic connector with anti-reverse insertion function, the insertion port of the socket is provided with a movable door that can rotate into the socket;

[0025] The anti-backdoor stop is located on the outside of the movable door.

[0026] Furthermore, in the fiber optic connector with anti-reverse insertion function, a spring piece is also provided in the socket for resetting the movable door so that the movable door closes the socket.

[0027] Compared with the prior art, the present invention has the following beneficial effects:

[0028] This utility model provides a fiber optic connector with anti-reverse insertion function. By adding an anti-reverse insertion block to the housing of the fiber optic adapter, a smooth gap is maintained between the connector and the fiber optic plug when the plug is correctly inserted. However, if the plug is forcibly inserted at an incorrect angle, mechanical interference immediately occurs, forcibly preventing further insertion and thus completely eliminating the risk of damage to the internal structure of the fiber optic cable due to misinsertion. Furthermore, this structure achieves foolproof protection without the need for additional tools or complex training, significantly improving on-site installation efficiency and reliability, while reducing maintenance costs and downtime. It ensures long-term stable and low-loss transmission of optical signals, fully meeting the stringent reliability requirements of optical communication systems.

[0029] This invention has other features and advantages that will be apparent from or will be set forth in detail in the accompanying drawings and the following detailed description, which together serve to explain the particular principles of this invention. Attached Figure Description

[0030] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0031] Figure 1 This is a three-dimensional structural diagram of the fiber optic adapter provided in this embodiment of the present invention;

[0032] Figure 2 This is a side view structural schematic diagram of the fiber optic adapter provided in this embodiment of the present invention;

[0033] Figure 3 This is a three-dimensional structural diagram of a fiber optic connector with anti-reverse insertion function (correct insertion) provided in an embodiment of the present utility model;

[0034] Figure 4 This is a partial side view of the structure of a fiber optic connector with anti-reverse insertion function (correct insertion) provided in an embodiment of the present utility model;

[0035] Figure 5yes Figure 4 Enlarged structural diagram at point A;

[0036] Figure 6 This is a three-dimensional structural diagram of a fiber optic connector with anti-inverted insertion function (incorrect insertion) provided by an embodiment of this utility model;

[0037] Figure 7 This is a partial side view of the structure of a fiber optic connector with anti-inverted insertion function (incorrect insertion) provided in an embodiment of this utility model;

[0038] Figure 8 yes Figure 7 Enlarged structural diagram at point B;

[0039] Figure label:

[0040] Fiber optic adapter 1, fiber optic plug 2;

[0041] Adapter body 11, outer shell 12, socket 13, anti-reverse insertion stop 14, plug pin 15, movable door 16;

[0042] Connecting section 141, stopping section 142. Detailed Implementation

[0043] To illustrate the possible application scenarios, technical principles, implementable specific solutions, and achievable objectives and effects of this application in detail, the following description, in conjunction with the listed specific embodiments and accompanying drawings, provides a detailed explanation. The embodiments described herein are merely illustrative of the technical solutions of this application and are therefore intended to limit the scope of protection of this application.

[0044] In this document, the term "embodiment" means that a specific feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The term "embodiment" appearing in various places throughout the specification does not necessarily refer to the same embodiment, nor does it specifically limit its independence or connection with other embodiments. In principle, in this application, as long as there are no technical contradictions or conflicts, the technical features mentioned in each embodiment can be combined in any way to form corresponding implementable technical solutions.

[0045] Unless otherwise defined, the technical terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the use of related terms herein is merely for the purpose of describing particular embodiments and is not intended to limit this application.

[0046] In the description of this application, the term "and / or" is used to describe the logical relationship between objects, indicating that three relationships can exist. For example, A and / or B means: A exists, B exists, and A and B exist simultaneously. Additionally, the character " / " in this document generally indicates that the preceding and following objects have an "or" logical relationship.

[0047] In this application, terms such as “first” and “second” are used only to distinguish one entity or operation from another, and do not necessarily require or imply any actual quantity, hierarchy or order relationship between these entities or operations.

[0048] Unless otherwise specified, the use of terms such as “comprising,” “including,” “having,” or other similar expressions in this application is intended to cover non-exclusive inclusion, which does not exclude the presence of additional elements in a process, method, or product that includes the stated elements, such that a process, method, or product that includes a list of elements may include not only those defined elements but also other elements not expressly listed, or elements inherent to such a process, method, or product.

[0049] In this application, expressions such as "greater than", "less than", and "exceeding" are understood to exclude the stated number; expressions such as "above", "below", and "within" are understood to include the stated number. Furthermore, in the description of the embodiments of this application, "multiple" means two or more (including two), and similar expressions related to "multiple" are also understood in this way, such as "multiple groups" and "multiple times", unless otherwise explicitly specified.

[0050] In the description of the embodiments of this application, the space-related expressions used, such as "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "vertical," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential," indicate the orientation or positional relationship based on the orientation or positional relationship shown in the specific embodiments or drawings. They are only for the purpose of describing the specific embodiments of this application or for the reader's understanding, and do not indicate or imply that the device or component referred to must have a specific position, a specific orientation, or be constructed or operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this application.

[0051] Unless otherwise expressly specified or limited, the terms "installation," "connection," "linking," "fixing," and "setting," as used in the description of the embodiments of this application, should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral setting; it can be a mechanical connection, an electrical connection, or a communication connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal connection of two components or the interaction between two components. For those skilled in the art to which this application pertains, the specific meaning of the above terms in the embodiments of this application can be understood according to the specific circumstances.

[0052] In view of the deficiencies in the existing technology, the applicant, based on years of practical experience and professional knowledge in the design and manufacture of such products, and in conjunction with the application of theoretical principles, actively conducted research and innovation in order to create a technology that can solve the deficiencies in the existing technology. After continuous research, design, and repeated prototype production and improvement, this utility model with practical value has finally been created.

[0053] Please refer to Figure 1-8 This utility model embodiment provides a fiber optic connector with anti-reverse insertion function, including a fiber optic adapter 1 and a fiber optic plug 2; wherein,

[0054] The fiber optic adapter 1 adopts a composite structure design, specifically encompassing two important components: the adapter body 11 and the outer shell 12. The adapter body 11, as the core functional component of the fiber optic adapter 1, has precisely formed a socket 13 that matches the fiber optic plug 2. The size, shape, and internal structure of this socket 13 have been carefully designed and optimized to ensure a tight and precise connection with the fiber optic plug 2, thereby guaranteeing efficient transmission of optical signals between them.

[0055] The outer shell 12 is securely mounted on the outer periphery of the adapter body 11 in a fitted form, providing reliable protection for the adapter body 11 against external environmental interference and damage, and also playing an important auxiliary role in its structure. Specifically, the outer shell 12 cleverly incorporates an anti-reverse insertion block 14 on the side corresponding to the socket 13. This anti-reverse insertion block 14 is one of the key innovations of this invention; its position, shape, and size have been precisely calculated and repeatedly tested to ensure that while achieving the anti-reverse insertion function, it does not obstruct the normal insertion of the fiber optic connector.

[0056] In actual use, when the user inserts the fiber optic plug 2 into the fiber optic adapter 1 at the correct angle (e.g., 0 degrees), such as... Figure 3-5As shown, a reasonable gap naturally exists between the fiber optic plug 2 and the anti-reverse insertion block 14. This gap provides ample space for the normal insertion of the fiber optic plug 2, allowing it to be smoothly and unobstructedly inserted into the socket 13, thereby achieving a reliable connection between the optical fibers. At this time, the optical signal can be stably transmitted between the fiber optic plug 2 and the fiber optic adapter 1, meeting the normal operating requirements of the optical communication system.

[0057] However, when a user attempts to insert fiber optic plug 2 at an incorrect angle (90 degrees, 270 degrees) due to negligence or improper operation, such as... Figure 6-8 As shown, the situation is quite different. In this case, mechanical interference occurs between the fiber optic plug 2 and the anti-reverse insertion block 14. This mechanical interference is because when the fiber optic plug 2 is inserted at an incorrect angle, part of its structure comes into contact with the anti-reverse insertion block 14 and creates a blocking effect, thus forcibly preventing the fiber optic plug 2 from being further inserted into the socket 13. Through this ingenious mechanical design, this invention can effectively avoid incorrect connection between the fiber optic plug 2 and the fiber optic adapter 1 caused by misinsertion, thereby completely eliminating the risk of damage to the internal structure of the fiber optic cable that may be caused by misinsertion.

[0058] This embodiment features an innovative design that carefully incorporates an anti-reverse insertion block 14 on the housing 12 of the fiber optic adapter 1. This design ensures that when the fiber optic plug 2 is correctly inserted, the anti-reverse insertion block 14 maintains an unobstructed gap with the fiber optic plug 2, guaranteeing smooth insertion. Conversely, if the plug is forcibly inserted at an incorrect angle, the two blocks immediately form mechanical interference, forcibly preventing further insertion. This unique design concept and structural implementation allows users to easily achieve the error-proof function without additional tools or complex training, significantly improving the efficiency and reliability of on-site installation.

[0059] Meanwhile, because this anti-reverse insertion structure effectively prevents equipment damage and malfunctions caused by misinsertion, it significantly reduces equipment maintenance costs and downtime. During the long-term operation of optical communication systems, it ensures that optical signals maintain a stable, low-loss transmission state, fully meeting the stringent reliability requirements of optical communication systems. Whether in data centers, communication base stations, or other application scenarios with extremely high optical communication quality requirements, the fiber optic connector with anti-reverse insertion function provided by this invention has significant advantages and broad application prospects.

[0060] In one specific embodiment of this example, two distinctive and feasible solutions are provided for the connection structure design between the anti-inverting stop 14 and the outer shell 12.

[0061] On the one hand, from the perspective of manufacturing process and structural stability, the anti-backdoor stop 14 and the outer shell 12 are manufactured using an integral molding process. This integral molding design means that the anti-backdoor stop 14 and the outer shell 12 are manufactured simultaneously through a one-time molding process, with no obvious connection gaps or structural weaknesses between them. This design has many significant advantages. First, it greatly enhances the integrity and robustness of the entire structure, allowing the anti-backdoor stop 14 to be more securely fixed to the outer shell 12, reducing the likelihood of loosening or falling off during long-term use, thus ensuring the continuous and reliable operation of the anti-backdoor function. Second, the integral molding process simplifies the production process, reduces the number of parts and assembly steps, helps improve production efficiency, reduces production costs, and better ensures product consistency and quality stability. Furthermore, since there are no additional connecting parts, the integral molding structure is also cleaner and more aesthetically pleasing, meeting the design aesthetic requirements of modern industrial products.

[0062] On the other hand, considering the flexibility and versatility requirements in practical applications, the anti-reverse insertion block 14 can also be designed as a detachable independent component, allowing for a detachable connection with the housing 12. This design approach gives the fiber optic connector greater adaptability and scalability, enabling flexible adjustments according to different usage scenarios and needs.

[0063] Specifically, the anti-backdoor stop 14 can be detachably connected to the housing 12 using various common connection methods. One method is a snap-fit ​​connection, a simple and effective method that utilizes the elastic deformation of the snap to achieve quick installation and removal between the anti-backdoor stop 14 and the housing 12. Snap-fit ​​connections offer advantages such as ease of operation, reliable connection, and no need for additional tools, significantly improving installation and disassembly efficiency. A screw connection is a more robust method, securing the anti-backdoor stop 14 to the housing 12 with screws. This method can withstand greater external forces, ensuring connection stability. Although screw connections require tools, they offer irreplaceable advantages in applications demanding high connection strength. An adhesive method uses the bonding force of adhesive to bond the anti-backdoor stop 14 to the housing 12. This connection method offers advantages such as good sealing and a neat appearance, making it suitable for applications requiring waterproofing and dustproofing.

[0064] By employing a detachable connection design and offering multiple connection options, this fiber optic connector can flexibly adapt to different models of fiber optic plugs 2. In practical applications, users can select the appropriate anti-reverse insertion block 14 for installation based on the specific model and specifications of the fiber optic plug 2 used, thereby ensuring good compatibility and reliable anti-reverse insertion function of the fiber optic connector with various types of fiber optic plugs 2. This flexible design concept not only improves the product's versatility and market competitiveness but also provides users with a more convenient and efficient user experience.

[0065] In one specific embodiment of this example, the material and thickness design of the anti-reverse insertion block 14 have been carefully considered and meticulously planned to ensure that it can fully perform the anti-reverse insertion function and meet the various performance requirements in actual use.

[0066] In terms of material selection, the anti-reverse insertion block 14 is made of either metal or high-strength plastic, both high-quality materials. Metal possesses numerous excellent properties, such as high strength, high hardness, good wear resistance, and corrosion resistance. When metal is used to make the anti-reverse insertion block 14, it can withstand significant external impact and friction. When the fiber optic plug 2 is inserted at an incorrect angle, its robust structure effectively blocks the insertion, preventing damage to the fiber optic plug 2 and fiber optic adapter 1 due to mechanical interference. Simultaneously, metal exhibits good stability and is not easily affected by environmental factors such as temperature and humidity changes, maintaining stable performance under various harsh working environments and ensuring the long-term reliability of the anti-reverse insertion function.

[0067] High-strength plastics are also an ideal material choice. They offer advantages such as light weight, low cost, and ease of processing and molding. Through special formulations and processes, high-strength plastics can achieve high strength and hardness, meeting the mechanical requirements of the anti-inversion stop 14 when preventing incorrect insertion of the fiber optic plug 2. Furthermore, high-strength plastics possess excellent insulation properties, effectively preventing electrical signal interference during fiber optic connection and ensuring the stable operation of the optical communication system. Moreover, the color and appearance of the plastic material can be flexibly adjusted according to design requirements, making the fiber optic connector more aesthetically pleasing overall.

[0068] In terms of thickness design, the thickness of the anti-reverse insertion block 14 is precisely controlled within the range of 0.5mm-2mm. This thickness range is the optimal solution obtained through extensive experiments and simulation analysis. If the thickness of the anti-reverse insertion block 14 is too thin, for example, less than 0.5mm, then when the fiber optic plug 2 is inserted incorrectly with greater force, the block may not be able to withstand sufficient external force, easily deforming or even breaking, thus losing its anti-reverse insertion function and failing to effectively protect the internal structure of the fiber optic cable. Conversely, if the thickness of the anti-reverse insertion block 14 is too thick, for example, greater than 2mm, although it can enhance its blocking ability, it will increase the overall size and weight of the fiber optic connector, which is not conducive to the miniaturization and lightweight design of the product. It may also hinder the normal insertion of the fiber optic plug 2, affecting the convenience and efficiency of installation.

[0069] Setting the thickness of the anti-reverse insertion block 14 between 0.5mm and 2mm ensures that it has sufficient strength and rigidity when subjected to external force, effectively preventing incorrect insertion of the fiber optic plug 2, without adversely affecting the overall performance and installation operation of the fiber optic connector.

[0070] Please refer to this again. Figure 2-8 In one embodiment of this invention, the anti-backdoor stop 14 adopts a scientific and reasonable segmented structure design, specifically covering two key parts: the connecting section 141 and the stop section 142. The parts work together to achieve an efficient and reliable anti-backdoor function.

[0071] From a structural connection perspective, the connecting segment 141 plays a crucial role in the overall anti-reverse insertion block 14 structure. One end of it is securely connected to the outer shell 12 via a specific connection method, such as the previously mentioned integral molding, snap-fit ​​connection, screw connection, or adhesive connection, depending on actual production needs and design considerations. This ensures a strong and stable connection between the connecting segment 141 and the outer shell 12, preventing loosening or detachment during the use of the fiber optic connector. The other end of the connecting segment 141 is tightly connected to the stop segment 142, providing a stable support base for the stop segment 142, allowing the stop segment 142 to accurately perform its blocking function.

[0072] The stop section 142 is the core component of the anti-reverse insertion block 14, enabling it to function as an anti-reverse insertion device. It is perpendicular to the connecting section 141, allowing the stop section 142 to directly and effectively block the fiber optic plug 2 from being inserted incorrectly. Simultaneously, the stop section 142 is also perpendicular to the axis of the socket 13. When the fiber optic plug 2 is inserted at the correct angle, its direction of movement is aligned with the axis of the socket 13. At this time, a suitable gap is maintained between the stop section 142 and the fiber optic plug 2, preventing any interference with normal insertion and ensuring that the fiber optic plug 2 can be smoothly and accurately inserted into the socket 13, achieving a reliable connection between the optical fibers.

[0073] However, when the fiber optic plug 2 is inserted at an incorrect angle, its direction of movement deviates from the axis of the socket 13, causing mechanical interference between the stop section 142 and the fiber optic plug 2. Due to the perpendicular relationship between the stop section 142 and the axis of the socket 143, it effectively blocks the continued insertion of the fiber optic plug 2 from the side, preventing damage to the internal structure of the fiber optic cable due to misinsertion. This vertically positioned structural design allows the stop section 142 to withstand greater external force during the blocking process, ensuring the stability and reliability of the anti-reverse insertion function.

[0074] Furthermore, this segmented structural design offers a degree of flexibility and adjustability. In actual production, the dimensions and shapes of the connecting section 141 and the stop section 142 can be appropriately adjusted and optimized according to different models of fiber optic plugs 2 and specific usage requirements. For example, by changing the length of the connecting section 141, the relative position of the stop section 142 and the outer shell 12 can be adjusted, thereby better adapting to the requirements of different installation environments; by adjusting the width and thickness of the stop section 142, its blocking ability and structural strength can be further enhanced, improving the overall performance of the anti-reverse insertion stop 14.

[0075] In summary, the anti-inversion stop 14 in this embodiment adopts a segmented structure of connecting section 141 and stop section 142, and by setting it vertically, it effectively prevents incorrect angle insertion while ensuring normal insertion of the fiber optic plug 2, thus providing a strong guarantee for the stable operation of the fiber optic connector and the reliability of the optical communication system.

[0076] Please refer to this again. Figure 1 In the specific and feasible implementation presented in this embodiment, the housing 12 is carefully designed and specially equipped with a key structural component, the pin 15. The pin 15 performs an extremely important function, namely, to securely fix the entire fiber optic connector.

[0077] In practical applications of fiber optic communication systems, fiber optic connectors need to reliably connect with various devices or apparatuses to ensure accurate transmission of optical signals. The pins 15 on the housing 12 are crucial for achieving this reliable connection. Pins 15 are typically made of materials with sufficient strength and toughness, such as metal or high-strength engineering plastics, to ensure they can withstand certain external forces during insertion and fixation without deformation or damage.

[0078] From a structural layout perspective, the position and shape of pin 15 have been meticulously designed. Its position on the housing 12 is chosen to ensure precise alignment with the corresponding slot or mounting structure on the target device. The shape of pin 15 may vary depending on different design requirements; some may be cylindrical, others flat, or other specific shapes. Regardless of the shape, the purpose is to form a tight and stable connection with the slot or mounting structure, thereby firmly securing the entire fiber optic connector in the designated position.

[0079] When the fiber optic connector is installed on the equipment, pin 15 is accurately inserted into the corresponding slot. During insertion, a certain amount of friction and mechanical engagement force is generated between pin 15 and the slot. This interaction ensures that the fiber optic connector will not easily loosen or fall off after installation. Additionally, some more sophisticated pins 15 may have a self-locking function; that is, after being inserted to a certain depth, a specific structure on pin 15 will lock into a latch or other fixing device within the slot, or be fixed by bending, further enhancing the stability of the fixation.

[0080] In summary, the pins 15 provided on the housing 12 are an important structural feature of the fiber optic connector in this embodiment. Through reasonable position selection, shape design and performance optimization, they provide a reliable and stable fixing method for the entire fiber optic connector, ensuring the efficient and stable operation of the fiber optic communication system.

[0081] Please refer to this again. Figure 1 In one embodiment of this invention, the structural design of the socket 13 is ingeniously and comprehensively planned. Specifically, an innovative movable door 16, which can rotate into the socket 13, is provided at the insertion port position of the socket 13.

[0082] The design of this movable door 16 incorporates numerous considerations and advantages. From a functional perspective, the movable door 16, in its initial state, seals the insertion port of the socket 13, effectively preventing external dust, debris, and moisture from entering the socket 13. In fiber optic communication systems, the internal structure of the socket 13 is extremely precise; even tiny dust particles or moisture can adversely affect the quality of the fiber optic connection, leading to signal attenuation, interference, or even interruption. The presence of the movable door 16 creates a relatively clean and dry environment inside the socket 13, ensuring the stability and reliability of the fiber optic connection.

[0083] When the fiber optic plug needs to be inserted, the tip of the plug contacts the movable door 16 and applies pressure. Under this pressure, the movable door 16 rotates around a specific axis towards the insertion hole 13, thus creating a passage for the fiber optic plug to be inserted smoothly. This rotational opening method is not only easy to operate, but also ensures that the movable door 16 will not cause scratches or collisions to the fiber optic plug during opening, protecting the appearance and performance of the fiber optic plug.

[0084] Meanwhile, the anti-reverse insertion block 14 is cleverly positioned on the outside of the movable door 16. As a crucial structural component preventing the fiber optic plug from being inserted in the wrong direction, the placement of the anti-reverse insertion block 14 is paramount. Positioning it on the outside of the movable door 16 allows for directional identification and blocking of the fiber optic plug as it approaches the socket 13. If the fiber optic plug is inserted at an incorrect angle, the anti-reverse insertion block 14 will first mechanically interfere with the plug, preventing further insertion and thus avoiding damage to the movable door 16, the internal structure of the socket 13, and the fiber optic plug itself due to misinsertion. This proactive anti-reverse insertion design provides the first line of defense for the entire fiber optic connection process, significantly improving the security and success rate of the fiber optic connection.

[0085] Furthermore, a spring-loaded contact is carefully provided inside the socket 13 for resetting the movable door 16. As an elastic structural element, the spring-loaded contact is typically made of a metal material with good elasticity and durability. When the fiber optic plug is inserted into the socket 13 and the movable door 16 is rotated open, the spring-loaded contact undergoes elastic deformation, storing a certain amount of elastic potential energy. Once the fiber optic plug is removed from the socket 13, the pressure applied to the movable door 16 disappears, and the elastic potential energy stored in the spring-loaded contact is rapidly released, pushing the movable door 16 to rotate around its initial position around the rotation axis, resealing the insertion port of the socket 13.

[0086] This design, which utilizes a spring to automatically reset the movable door 16, offers several significant advantages. Firstly, it eliminates the need for an additional power source or complex control mechanism, relying solely on the spring's elasticity to automatically close the movable door 16. This simplifies the overall structural design of the socket 13, reducing production costs and manufacturing complexity. Secondly, the automatic reset function ensures that the movable door 16 promptly and accurately seals the socket 13 after each fiber optic plug is removed, maintaining a clean and dry environment inside the socket 13 and providing a reliable guarantee for subsequent fiber optic connections. Furthermore, the spring's design, precisely calculated and optimized, ensures smooth and reliable operation of the movable door 16 during reset, preventing any impact on the socket 13's sealing performance due to improper or incomplete reset.

[0087] In summary, the rotatable door 16, the anti-reverse insertion block 14 on the outside, and the reset spring in the inside of the jack 13 in this embodiment together constitute a complete and ingeniously designed structural system, providing strong support for the high-performance and high-reliability operation of the fiber optic connector.

[0088] Although this application frequently uses terms such as "casing" and "anti-inversion stop," the possibility of using other terms is not excluded. These terms are used merely for the convenience of describing and explaining the essence of this utility model; interpreting them as any additional limitation would contradict the spirit of this utility model.

[0089] Finally, it should be noted that although the above embodiments have been described in the text and drawings of this application, this should not limit the scope of patent protection of this application. Any technical solutions that are based on the essential concept of this application and utilize the content described in the text and drawings of this application, resulting in equivalent structural or procedural substitutions or modifications, as well as the direct or indirect application of the technical solutions of the above embodiments to other related technical fields, are all included within the scope of patent protection of this application.

Claims

1. A fiber optic connector with anti-reverse insertion function, characterized in that, Includes a fiber optic adapter (1) and a fiber optic plug (2); wherein, The fiber optic adapter (1) includes an adapter body (11) and a housing (12). The adapter body (11) has a socket (13) that is compatible with the optical fiber plug (2). The outer shell (12) is fitted around the outer periphery of the adapter body (11), and an anti-reverse insertion block (14) is provided on the side of the outer shell (12) corresponding to the socket (13). When inserted at the correct angle, there is a gap between the fiber optic plug (2) and the anti-reverse insertion block (14) so ​​that the fiber optic plug (2) can be properly inserted into the socket (13); When the fiber optic plug (2) is inserted at an incorrect angle, mechanical interference occurs between the fiber optic plug (2) and the anti-inversion stop (14) to prevent the fiber optic plug (2) from being inserted into the socket (13).

2. The fiber optic connector with anti-reverse insertion function according to claim 1, characterized in that, The anti-reverse insertion block (14) is integrally formed with the outer shell (12).

3. The fiber optic connector with anti-reverse insertion function according to claim 1, characterized in that, The anti-reverse insertion block (14) is a detachable independent component and is detachably connected to the outer shell (12).

4. The fiber optic connector with anti-reverse insertion function according to claim 3, characterized in that, The anti-reverse insertion block (14) is detachably connected to the housing (12) by means of a snap, screw or adhesive to adapt to different models of the fiber optic plug (2).

5. The fiber optic connector with anti-reverse insertion function according to claim 1, characterized in that, The anti-inverting stop (14) is made of metal or high-strength plastic.

6. The fiber optic connector with anti-reverse insertion function according to claim 1, characterized in that, The thickness of the anti-inverted stop (14) is 0.5 mm to 2 mm.

7. The fiber optic connector with anti-reverse insertion function according to claim 1, characterized in that, The anti-inverting stop (14) includes a connecting section (141) and a stop section (142). One end of the connecting section (141) is connected to the outer shell (12), and the other end is connected to the stop section (142); The stop section (142) is perpendicular to the connecting section (141) and also perpendicular to the axis of the socket (13).

8. The fiber optic connector with anti-reverse insertion function according to claim 1, characterized in that, The housing (12) is provided with pins (15) for securing the entire fiber optic connector.

9. The fiber optic connector with anti-reverse insertion function according to claim 1, characterized in that, The insertion port of the socket (13) is provided with a movable door (16) that can rotate into the socket (13). The anti-backdoor stop (14) is located on the outside of the movable door (16).

10. The fiber optic connector with anti-reverse insertion function according to claim 9, characterized in that, The socket (13) is also provided with a spring piece for resetting the movable door (16) so that the movable door (16) closes the socket (13).