Optical fiber splice seal butt apparatus

Abstract

This application relates to the field of optical fiber communication technology, specifically to an optical fiber connector sealing and mating device, including an adapter box, a sealing component, and an optical fiber connector. By setting a partition in the inner cavity of the adapter box, the inner cavity is divided into an independent optical fiber mating cavity and a cable insertion cavity, effectively isolating the optical fiber mating area from the cable access area. This prevents dust and moisture carried by the cable during insertion from directly contaminating the optical fiber mating end face, providing a clean and independent protective environment for optical fiber mating. By setting a sealing component, the optical fiber mating cavity and the cable insertion cavity are sealed, effectively blocking the intrusion of dust and moisture. Ultimately, the device can be adapted to complex working conditions such as outdoor and humid environments, effectively resisting external dust and moisture interference and ensuring the cleanliness of the optical fiber mating end face.

Description

Technical Field

[0001] This application generally relates to the field of optical fiber communication technology, and more specifically, to an optical fiber connector sealing and mating device. Background Technology

[0002] Optical fiber, as a highly efficient signal transmission medium, is widely used in communications, power, security, and other fields. The quality of fiber optic connector splicing directly affects the stability and reliability of signal transmission. During fiber optic laying and maintenance, two or more optical fibers need to be spliced ​​together using connectors. However, the fiber splicing points have high environmental requirements and are easily affected by external factors such as dust, moisture, and impurities, leading to contamination and oxidation of the splicing surfaces. This, in turn, can cause signal attenuation, transmission interruption, and other problems, seriously affecting the normal operation of the fiber optic transmission system.

[0003] Currently, most existing fiber optic connectors employ a single-cavity structure, with the fiber optic connection point and cable insertion point in the same space. This results in poor sealing performance, allowing external dust and moisture to easily enter the device through the cable insertion point or connection gap, contaminating the fiber optic connection surface. Furthermore, existing sealing structures are mostly single-seal designs, only providing basic sealing to the cable insertion point or connection point, offering limited sealing effectiveness and failing to achieve comprehensive sealing protection for the entire connection environment. This makes them unsuitable for use in complex environments (such as outdoor or humid environments). Summary of the Invention

[0004] According to this application, a fiber optic connector sealing and mating device is provided. This solution divides the inner cavity of the adapter box into independent fiber optic mating cavities and cable insertion cavities by setting a partition, thereby achieving effective isolation between the fiber optic mating part and the cable insertion part. At the same time, a sealing component is set to seal the fiber optic mating cavity and the cable insertion cavity. This solves the problem that existing fiber optic connector mating devices usually adopt a single cavity structure and a single sealing design, resulting in poor sealing performance and inability to achieve comprehensive sealing protection for the entire mating environment, making it difficult to meet the usage requirements of complex environments such as outdoor and humid environments.

[0005] This application provides a fiber optic connector sealing and mating device, including an adapter box, a sealing assembly, and a fiber optic connector; The adapter box has an inner cavity, and a partition is provided in the inner cavity. The partition divides the inner cavity into an optical fiber docking cavity and a cable insertion cavity. The external environment of the adapter box, the optical fiber docking cavity, and the cable insertion cavity are connected in sequence. The sealing assembly is disposed in the inner cavity, and the sealing assembly is used to seal the optical fiber docking cavity and the cable insertion cavity; The fiber optic connector includes a female connector, a first male connector, and a second male connector. The female connector is disposed within the fiber optic mating cavity. The first male connector is used to connect an external first optical fiber and is inserted into one end of the female connector. The second male connector is used to connect an external second optical fiber. When the optical fibers are mated, the second male connector passes through the fiber optic mating cavity, extends to the point where the cable passes through the cavity, and is inserted into the other end of the female connector.

[0006] Furthermore, the outer wall of the adapter box is provided with a first through hole communicating with the cable insertion cavity, and the partition is provided with a second through hole communicating with the optical fiber docking cavity and the cable insertion cavity; The sealing assembly is used to close the first through hole and the second through hole to seal the optical fiber mating cavity and the cable insertion cavity. When the optical fiber is connected, the second male connector passes through the first through hole and the second through hole in sequence, and is then inserted into the other end of the female connector.

[0007] Furthermore, the sealing assembly is an integral seal, including a piston rod and a seal disposed on the piston rod; The outer wall of the adapter box is provided with a socket that communicates with the cable insertion cavity, and the piston rod is inserted into the socket; the sealing member is located inside the cable insertion cavity, and its two outer walls are respectively attached to the partition and the inner wall of the adapter box to block the first through hole and the second through hole.

[0008] Furthermore, the inner wall of the adapter box is provided with a first protrusion protruding into the cavity through which the cable passes, and the first through hole penetrates the first protrusion, and the end of the first protrusion is provided with a first connecting surface. The partition plate is provided with a second protrusion protruding into the cavity through which the cable passes, and the second through hole penetrates the second protrusion. The end of the second protrusion is provided with a second connecting surface. The sealing element has a first sealing surface on one side that is parallel to the first connecting surface, and a second sealing surface on the other side that is parallel to the second connecting surface. The first sealing surface is used to fit against the first connecting surface to block the first through hole; the second sealing surface is used to fit against the second connecting surface to block the second through hole.

[0009] Furthermore, the first through hole and the second through hole are coaxially arranged; The axis of the piston rod is perpendicular to the axes of the first through hole and the second through hole; The first sealing surface and the second sealing surface are symmetrically arranged with respect to the axis of the piston rod, and both of them form an acute angle with the axis of the piston rod.

[0010] Furthermore, the sealing assembly is a split-type sealing element, including a first sealing cover and a second sealing cover; The first sealing cover is located inside the cable insertion cavity and is detachably connected to the adapter box, used to block the first through hole; the second sealing cover is located inside the optical fiber docking cavity and is detachably connected to the partition plate, used to block the second through hole.

[0011] Furthermore, the inner wall of the adapter box is provided with a first truncated cone protruding into the cavity through which the cable passes, and the first through hole penetrates the first truncated cone; the first sealing cover is sleeved on the end of the first truncated cone to block the first through hole. The partition plate is provided with a second frustum protruding into the optical fiber docking cavity, and the second through hole penetrates the second frustum; the second sealing cap is fitted onto the end of the second frustum to block the second through hole.

[0012] Furthermore, the fiber optic connector sealing and mating device also includes an inner sleeve, wherein a guide hole is provided inside the inner sleeve; The second male connector is inserted into the guide hole and is slidably disposed along the axial direction of the guide hole; The inner ring is provided with a connecting ring at its end; when the optical fibers are connected, the connecting ring is fitted onto the female port, and the second male head passes through the inner ring and is inserted into the female port.

[0013] Furthermore, the fiber optic connector sealing and mating device also includes a connector, the connector comprising an annular plate and a guide ring disposed at the inner end of the annular plate; The guide ring is inserted into the first through hole, and the outer wall of the annular plate is in contact with the outer wall of the adapter box; During fiber optic cable connection, the inner ring passes through the guide ring.

[0014] Furthermore, the fiber optic connector sealing and mating device also includes an outer sleeve and a sealing ring disposed on the inner wall of the outer sleeve; The inner ring is inserted into the sealing ring and slides along the axial direction of the outer ring; During fiber optic cable connection, the inner wall of the outer sleeve fits onto the outer wall of the connector to achieve a radial seal between the connector and the inner sleeve.

[0015] Compared with the prior art, this application has the following beneficial technical effects: By setting a partition in the inner cavity of the adapter box, the inner cavity is divided into an independent fiber optic docking cavity and a cable insertion cavity, which effectively isolates the fiber optic docking area from the cable access area. This can prevent dust and moisture carried by the cable during insertion from directly contaminating the fiber optic docking end face, and provide a clean and independent protective environment for fiber optic docking. By setting up sealing components, the fiber optic docking cavity and cable insertion cavity are sealed, effectively preventing dust and moisture from entering the fiber optic docking cavity and cable insertion cavity. Ultimately, the device can be adapted to complex working conditions such as outdoor and humid environments, effectively resisting external dust and moisture interference, ensuring the cleanliness of the fiber optic docking end face, avoiding problems such as signal attenuation and transmission interruption, and improving the stability and reliability of fiber optic transmission.

[0016] It should be understood that the content described in this application summary is not intended to limit the key or essential features of the embodiments of this application, nor is it intended to restrict the scope of this application. Other features of this application will become readily apparent from the following description. Attached Figure Description

[0017] The above and other features, advantages, and aspects of the embodiments of this application will become more apparent from the accompanying drawings and the following detailed description. In the drawings, the same or similar reference numerals denote the same or similar elements, wherein: Figure 1 This is a schematic diagram of the fiber optic connector sealing and mating device according to Embodiment 1 of this application; Figure 2 This is a cross-sectional structural schematic diagram of the fiber optic connector sealing and mating device according to Embodiment 1 of this application; Figure 3 This is a schematic diagram of the separated state structure of the fiber optic connector sealing and docking device according to Embodiment 2 of this application; Figure 4 This is a schematic diagram of the docking state structure of the fiber optic connector sealing and docking device according to Embodiment 2 of this application; Figure 5 This is a schematic diagram of the adapter box in the fiber optic connector sealing and docking device of Embodiment 2 of this application; Figure 6 This is a schematic diagram of the sealing assembly in the fiber optic connector sealing and docking device according to Embodiment 2 of this application; Figure 7 This is a schematic diagram of the female connector structure in the fiber optic connector sealing and mating device of Embodiment 2 of this application; Figure 8 This is a schematic diagram of the connector structure in the fiber optic connector sealing and mating device of Embodiment 2 of this application; Figure 9 This is a schematic diagram of the inner ring structure in the fiber optic connector sealing and docking device of Embodiment 2 of this application; Figure 10 This is a schematic diagram of the outer sleeve in the fiber optic connector sealing and mating device of Embodiment 2 of this application; Figure 11 This is a schematic diagram of the fiber optic connector sealing and mating device according to Embodiment 3 of this application; Figure 12 This is a schematic diagram of the separated state structure of the fiber optic connector sealing and docking device according to Embodiment 3 of this application; Figure 13 This is a schematic diagram of the docking state structure of the fiber optic connector sealing and docking device according to Embodiment 3 of this application; Figure 14 This is a schematic diagram of the adapter box in the fiber optic connector sealing and docking device of Embodiment 3 of this application; Figure 15 This is a schematic diagram of the structure of the fiber optic connector sealing and docking device in Embodiment 4 of this application.

[0018] in: 1. Adapter box; 11. Partition plate; 12. Fiber optic docking cavity; 13. Cable insertion cavity; 14. First through hole; 15. Second through hole; 16. First boss; 17. Second boss; 18. First frustum; 19. Second frustum; 2. Sealing assembly; 21. Piston rod; 22. Seal; 23. First sealing cover; 24. Second sealing cover; 3. Fiber optic connector; 31. Female connector; 32. First male connector; 33. Second male connector; 34. Needle; 4. Inner ring; 41. Guide hole; 42. Connecting ring; 43. Elastic membrane; 5. Connector; 51. Annular plate; 52. Guide ring; 6. Outer ring; 7. Sealing ring; 8. Brush. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0020] Furthermore, the term "and / or" in this article is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or B existing alone. Additionally, the character " / " in this article generally indicates that the preceding and following related objects have an "or" relationship.

[0021] This fiber optic connector sealing and mating device separates the fiber optic mating cavity 12 and the cable insertion cavity 13 by setting a partition 11 inside the adapter box 1, thereby isolating the two areas and preventing dust and moisture from contaminating the mating end face. The sealing component 2 seals the through hole connecting the two cavities, constructing a comprehensive sealing system that is suitable for complex working conditions such as outdoor and humid environments. It ensures clean mating, improves the stability and reliability of fiber optic transmission, and solves the problem that existing fiber optic connector mating devices usually adopt a single cavity structure and a single sealing design, resulting in poor sealing performance and inability to achieve comprehensive sealing protection for the entire mating environment, making it difficult to meet the usage requirements of complex environments such as outdoor and humid environments.

[0022] Example 1:

[0023] Please see Figures 1-2 As shown, the fiber optic connector sealing and mating device includes an adapter box 1, a sealing assembly 2, and a fiber optic connector 3. The adapter box 1 can be made of high-strength insulating and flame-retardant material, and the whole can be in the shape of a cuboid. The adapter box 1 has an inner cavity, and a partition 11 is provided in the inner cavity. The partition 11 can be integrally injection molded with the adapter box 1. The partition 11 divides the inner cavity into an optical fiber docking cavity 12 and a cable insertion cavity 13. The external environment of the adapter box 1, the optical fiber docking cavity 12 and the cable insertion cavity 13 are connected in sequence.

[0024] The top of the adapter box 1 is equipped with a detachable inspection cover. The inspection cover is detachably connected to the adapter box 1 by bolts, and a sealing ring is provided at the connection. This facilitates the later inspection and maintenance of the internal components of the fiber optic docking cavity 12 and the cable insertion cavity 13, and further improves the overall sealing of the adapter box 1 to prevent dust and moisture from entering the inner cavity.

[0025] The sealing component 2 is disposed in the inner cavity and is used to seal the optical fiber docking cavity 12 and the cable insertion cavity 13.

[0026] The fiber optic connector 3 can be a conventional fiber optic connector, including a female connector 31, a first male connector 32, and a second male connector 33. The female connector 31 is located inside the fiber optic mating cavity 12. like Figure 2 As shown, the first male connector 32 is used to connect to the external first optical fiber and is inserted into one end of the female connector 31. The left end of the adapter box 1 is provided with an optical fiber hole, through which the first optical fiber passes. The inner wall of the optical fiber hole is provided with a sealing ring, and the inner wall of the sealing ring is fitted with the outer wall of the first optical fiber to achieve a seal. The second male connector 33 is used to connect to the external second optical fiber. When the optical fibers are connected, the second male connector 33 passes through the optical fiber connection cavity 12, extends into the cable insertion cavity 13, and is inserted into the other end of the female connector 31.

[0027] The inner cavity of the adapter box 1 is divided into an optical fiber docking cavity 12 and a cable insertion cavity 13 by the partition 11, realizing the separation of the optical fiber docking part and the cable insertion part. With the help of the sealing component 2, the optical fiber docking cavity 12 and the cable insertion cavity 13 are sealed, effectively preventing dust, moisture and other impurities from entering the two cavities, protecting the docking end face of the optical fiber connector 3 and avoiding signal transmission interference. The female port 31, the first male connector 32 and the second male connector 33 of the optical fiber connector 3 cooperate to realize the rapid and accurate docking of the two external optical fibers. The overall structure is reasonably designed and easy to install. At the same time, the practicality and sealing performance of the device are further improved by details such as anti-slip embossing and sealing rubber ring.

[0028] Specifically, the outer wall of the adapter box 1 is provided with a first through hole 14 that communicates with the cable insertion cavity 13, and the partition 11 is provided with a second through hole 15 that communicates with the optical fiber docking cavity 12 and the cable insertion cavity 13. The first through hole 14 and the second through hole 15 are both circular through holes with the same diameter, and the inner walls of both are polished to avoid scratching the second male connector 33 and the optical fiber passing through. The sealing component 2 is used to seal the optical fiber docking cavity 12 and the cable insertion cavity 13.

[0029] During fiber optic connection, the second male connector 33 passes through the first through hole 14 and the second through hole 15 in sequence, and is then inserted into the other end of the female connector 31 to achieve fiber optic connection.

[0030] Example 2:

[0031] According to Figures 3-10 As shown, this embodiment further optimizes the sealing structure based on embodiment one. The sealing component is an integrated sealing element, specifically including a piston rod 21 and a sealing element 22 disposed on the piston rod 21. The piston rod 21 can be made of high-strength metal material, and one end of it is detachably or fixedly connected to the seal 22 by threads; the other end of the piston rod 21 extends to the outside of the adapter box 1, and the end is provided with a circular grip, the surface of which is provided with anti-slip texture, so that the operator can push the piston rod 21 to move the seal 22; the seal 22 can be made of silicone rubber material, which has good elasticity and sealing performance, and its size is adapted to the cable insertion cavity 13.

[0032] In this embodiment, the outer wall of the piston rod 21 is provided with an annular limiting protrusion, which fits against the outer wall of the adapter box 1 to limit the advancing distance of the piston rod 21 and avoid excessive advancement that could damage the seal 22 or cause excessive compression of the first through hole 14 and the second through hole 15.

[0033] like Figure 4 and Figure 5As shown, the outer wall of the adapter box 1 is provided with a socket that communicates with the cable insertion cavity 13. The piston rod 21 is inserted into the socket. The inner wall of the socket is provided with a sealing ring. The sealing ring fits tightly with the outer wall of the piston rod 21 to further improve the sealing performance at the socket. The sealing element 22 is located inside the cable insertion cavity 13, and its two outer walls are respectively attached to the inner walls of the partition 11 and the adapter box 1 to block the first through hole 14 and the second through hole 15.

[0034] The integrated sealing assembly 2 has a compact structure. By pushing the piston rod 21, the first through hole 14 and the second through hole 15 can be blocked and opened simultaneously, making the operation convenient and efficient. The sealing element 22 fits tightly with the partition plate 11 and the inner wall of the adapter box 1, and together with the sealing ring at the insertion hole, a double sealing structure is formed, which effectively prevents dust and moisture from entering the cavity, ensuring a clean environment for fiber optic connection. At the same time, the setting of the limiting protrusion avoids damage to components due to operational errors, improving the reliability of the device.

[0035] Reference Figures 3-6 As shown, in one embodiment, the inner wall of the adapter box 1 is provided with a first protrusion 16 protruding into the cable insertion cavity 13, and a first through hole 14 passes through the first protrusion 16. The end of the first protrusion 16 is provided with a first connecting surface. The first protrusion 16 and the adapter box 1 are integrally formed and can be cylindrical. Its outer diameter is larger than the diameter of the first through hole 14. The first connecting surface is flat and is polished to ensure tight fit with the first sealing surface of the sealant 22 and improve the sealing effect.

[0036] The partition 11 is provided with a second protrusion 17 protruding into the cable insertion cavity 13, and the second through hole 15 passes through the second protrusion 17. The end of the second protrusion 17 is provided with a second connecting surface. The second protrusion 17 and the partition 11 are integrally formed. Its structure is symmetrical with the first protrusion 16. It can also be cylindrical, with an outer diameter larger than the diameter of the second through hole 15. The second connecting surface is also polished to ensure tight fit with the second sealing surface of the seal 22, thereby effectively sealing the second through hole 15.

[0037] The seal 22 has a first sealing surface on one side that is parallel to the first connecting surface, and a second sealing surface on the other side that is parallel to the second connecting surface; the first sealing surface is used to fit the first connecting surface to block the first through hole 14; the second sealing surface is used to fit the second connecting surface to block the second through hole 15.

[0038] By setting the first boss 16 and the second boss 17, the channel length of the first through hole 14 and the second through hole 15 is extended, while providing a stable fitting support surface for the seal 22, preventing the seal 22 from shifting due to uneven force. The first sealing surface is parallel to the first connecting surface, and the second sealing surface is parallel to the second connecting surface, ensuring that the seal 22 fits tightly with the boss. Combined with the design of the sealing groove and the elastic sealing gasket, the sealing effect is further improved. The boss is integrally formed with the adapter box 1 and the partition 11, with a stable structure, avoiding sealing failure caused by assembly gaps, further ensuring the dust-free environment of the cable insertion cavity 13 and the optical fiber docking cavity 12, and providing a stable guarantee for optical fiber docking.

[0039] Furthermore, the first through hole 14 and the second through hole 15 are coaxially arranged; the axes of the first through hole 14 and the second through hole 15 are completely coincident, and their diameters are the same, ensuring that the second male connector 33 passes through the first through hole 14 and the second through hole 15 smoothly and without obstruction, avoiding friction between the second male connector 33 and the inner wall of the through hole due to axis misalignment, and protecting the second male connector 33 and the optical fiber from damage; the axes of the first through hole 14 and the second through hole 15 are parallel to the central axis of the optical fiber docking cavity 12, which facilitates positioning during optical fiber docking and improves docking accuracy.

[0040] The axis of piston rod 21 is perpendicular to the axes of the first through hole 14 and the second through hole 15; the axis of piston rod 21 intersects perpendicularly with the axes of the first through hole 14 and the second through hole 15, and the intersection point is located on the axis of the first through hole 14 and the second through hole 15, ensuring that when piston rod 21 moves the seal 22, the seal 22 can move precisely to the sealing position between the first through hole 14 and the second through hole 15, avoiding the seal 22 from shifting and causing sealing failure; the axis of piston rod 21 is perpendicular to the outer wall of the adapter box 1, which makes it easy for the operator to push piston rod 21 in the vertical direction and improves the ease of operation.

[0041] The first and second sealing surfaces are symmetrically arranged relative to the axis of the piston rod 21, and both form acute angles with the axis of the piston rod 21. The angle between the first and second sealing surfaces and the axis of the piston rod 21 can be 45°. This angle setting ensures that the sealing element 22 fits tightly with the connecting surfaces of the first boss 16 and the second boss 17, and reduces the resistance when the sealing element 22 moves, facilitating the smooth movement of the sealing element 22 driven by the piston rod 21. The symmetrical arrangement of the two sealing surfaces ensures that the sealing element 22 is subjected to uniform force, preventing deformation of the sealing element 22 due to uneven force, extending the service life of the sealing element 22, and ensuring consistent sealing force for the two through holes.

[0042] The coaxial arrangement of the first through hole 14 and the second through hole 15 ensures smooth docking of the second male connector 33, reduces frictional loss, and protects the optical fiber and the second male connector 33. The axis of the piston rod 21 is perpendicular to the axis of the through hole, and the sealing surface is symmetrical to the axis of the piston rod 21 and forms an acute angle, which makes the movement of the sealing element 22 precise and the force uniform. This not only achieves a tight seal on the first through hole 14 and the second through hole 15, but also improves the ease of operation. The setting of the scale line further improves the accuracy of operation and avoids operational errors. The overall structural design is more reasonable and practical, effectively ensuring the sealing performance and docking stability of the device.

[0043] Reference Figures 3-9 As shown, the fiber optic connector sealing and mating device also includes an inner ring 4, and a guide hole 41 is provided inside the inner ring 4. The inner ring 4 can be made of high-strength wear-resistant engineering plastic and is cylindrical in shape. Its length is adapted to the sliding stroke of the second male head 33, providing sufficient sliding space for the second male head 33. The guide hole 41 passes through both ends of the inner ring 4. The inner wall of the guide hole 41 is polished and smooth, and the diameter of the guide hole 41 is adapted to the outer diameter of the second male head 33, which not only ensures that the second male head 33 can slide smoothly, but also reduces the amount of dust entering the guide hole 41 through the gap.

[0044] The second male head 33 is inserted into the guide hole 41 and is slidably disposed along the axial direction of the guide hole 41.

[0045] like Figure 9 As shown, the end of the inner ring 4 is provided with a connecting ring 42; when the optical fiber is connected, the inner wall of the connecting ring 42 is fitted onto the outer wall of the female port 31, and the second male head 33 passes through the inner ring 4 and is inserted into the female port 31.

[0046] The connecting ring 42 and the inner ring 4 are integrally formed and are ring-shaped. The inner diameter of the ring is adapted to the outer diameter of the female opening 31, ensuring that the connecting ring 42 can be tightly fitted onto the outside of the female opening 31.

[0047] The guide hole 41 of the inner ring 4 provides precise guidance for the second male connector 33, ensuring that the second male connector 33 slides along the axial direction, avoiding misalignment during docking, and improving the accuracy of fiber optic docking.

[0048] Reference Figure 7 and Figure 9 As shown, in one embodiment, the inner wall of the connecting ring 42 is provided with an elastic membrane 43, which blocks the guide hole 41. The elastic membrane 43 is made of a thin sealing elastic material with a thickness of 0.1-0.2mm. The elastic membrane 43 is fixed to the inner wall of the connecting ring 42 by bonding, and the edge of the elastic membrane 43 is tightly fitted to the inner wall of the connecting ring 42 to ensure complete sealing of the guide hole 41 and prevent dust, water vapor and other impurities from entering the guide hole 41 and contaminating the second male head 33. The elastic membrane 43 has good elasticity and toughness, which can not only ensure sealing performance, but also be easily punctured by the needle, and no debris will be produced after puncture.

[0049] The female port 31 is provided with a needle 34; when the connecting ring 42 is sleeved on the female port 31, the needle 34 punctures the elastic membrane 43, and the second male head 33 passes through the guide hole 41 and is inserted into the female port 31.

[0050] The needle 34 and the female opening 31 are integrally formed and made of high-strength metal material. The length of the needle 34 is matched with the thickness of the connecting ring 42 to ensure that when the connecting ring 42 is fitted into the female opening 31, the needle 34 can just pierce the elastic membrane 43 without damaging the end of the second male head 33. The needle 34 is located at the center of the female opening 31 and coincides with the axis of the guide hole 41 to ensure that after piercing the elastic membrane 43, the second male head 33 can pass smoothly and accurately dock with the female opening 31.

[0051] The elastic membrane 43 can effectively seal the guide hole 41, preventing dust and moisture from entering the guide hole 41 and contaminating the mating end face of the second male connector 33 before optical fiber docking, ensuring the cleanliness of the second male connector 33, and thus ensuring the signal transmission quality of optical fiber docking; the needle 34 can automatically puncture the elastic membrane 43 during docking without additional operation, improving docking efficiency.

[0052] Reference Figures 3-8 As shown, in one embodiment, the fiber optic connector sealing and mating device further includes a connector 5, which includes an annular plate 51 and a guide ring 52 disposed at the inner end of the annular plate 51. The connector 5 can be made of high-strength metal material. The annular plate 51 and the guide ring 52 are integrally formed, with a stable structure that can provide stable guidance and support for the inner ring 4. The annular plate 51 is circular, and its outer diameter is larger than the diameter of the first through hole 14, ensuring that the annular plate 51 can completely cover the outside of the first through hole 14. The guide ring 52 is cylindrical, and its length is adapted to the depth of the first through hole 14, ensuring that the guide ring 52 can be completely inserted into the first through hole 14.

[0053] The guide ring 52 is inserted into the first through hole 14, and the outer wall of the annular plate 51 fits against the outer wall of the adapter box 1; the outer diameter of the guide ring 52 is matched with the inner diameter of the first through hole 14, and the two fit tightly to achieve precise positioning of the connector 5 and the adapter box 1.

[0054] During fiber optic cable connection, the inner sleeve 4 passes through the guide ring 52. The inner diameter of the guide ring 52 matches the outer diameter of the inner sleeve 4, ensuring that the inner sleeve 4 can pass smoothly through the guide ring 52. At the same time, the guide ring 52 provides precise guidance for the inner sleeve 4, preventing the inner sleeve 4 from shifting when passing through the first through hole 14.

[0055] The guide ring 52 of the connector 5 provides precise guidance for the inner sleeve 4 to pass through the first through hole 14, ensuring that the inner sleeve 4 can move smoothly along the axial direction and avoid component damage and docking failure caused by misalignment; the overall structure of the connector 5 is stable and can provide stable support for the inner sleeve 4, improving the stability and smoothness of the optical fiber docking process.

[0056] Reference Figures 3-10 As shown, in one embodiment, the fiber optic connector sealing and mating device further includes an outer ring 6 and a sealing ring 7 disposed on the inner wall of the outer ring 6. The outer ring 6 is made of high-strength insulating engineering plastic and is cylindrical in shape. Its length is matched with the length of the connector 5 to ensure that the outer ring 6 can completely cover the connector 5. The inner wall of the outer ring 6 is provided with an annular mounting groove, which is set along the circumference of the outer ring 6. The sealing ring 7 is embedded in the annular mounting groove to ensure that the sealing ring 7 is firmly installed and not easy to fall off. The sealing ring 7 is made of wear-resistant and aging-resistant silicone rubber material, which can adapt to the sliding of the inner ring 4 and achieve dynamic sealing.

[0057] The inner ring 4 is inserted into the sealing ring 7 and is slidably arranged along the axial direction of the outer ring 6; the inner diameter of the sealing ring 7 is adapted to the outer diameter of the inner ring 4, and the sealing ring 7 is tightly fitted with the outer wall of the inner ring 4 to achieve dynamic sealing between the inner ring 4 and the outer ring 6.

[0058] When the optical fibers are connected, the inner wall of the outer ring 6 fits onto the outer wall of the connector 5 to achieve a radial seal between the connector 5 and the inner ring 4.

[0059] The outer sleeve 6 and the sealing ring 7 work together to achieve a radial dynamic seal between the inner sleeve 4 and the connector 5, effectively preventing dust from entering the cavity through the gap between the inner sleeve 4 and the connector 5, thus ensuring a clean environment for fiber optic connection. The sealing ring 7 is designed to accommodate the sliding of the inner sleeve 4, ensuring that it does not affect the normal movement of the inner sleeve 4 while maintaining a continuous sealing performance. The tight fit between the outer sleeve 6 and the connector 5, combined with the design of the auxiliary sealing ring and the limiting protrusion, further enhances the stability and sealing of the overall structure, ensuring a smooth and stable fiber optic connection process and extending the service life of the device.

[0060] The process of connecting the first and second optical fibers using a fiber optic connector sealing and docking device with an integrated seal is as follows: The first step is to connect the first male connector 32 to the external first optical fiber and insert it into the optical fiber docking cavity 12 of the adapter box 1; The second step is to pull the piston rod 21 outward, which will move the seal 22 and release the blockage of the first through hole 14 and the second through hole 15. The third step is to connect the second male connector 33 to the external second optical fiber, hold the second male connector 33 and insert it into the guide hole 41 of the inner ring 4, push the inner ring 4, and pass through the guide ring 52, the first through hole 14 and the second through hole 15 in sequence. The needle 34 punctures the elastic membrane 43, and the connecting ring 42 is fitted into the female port 31. At the same time, the inner wall of the outer ring 6 is fitted into the outer wall of the connector 5. The fourth step is to push the second male head 33 inward, and the second male head 33 will dock with the female head 31.

[0061] Example 3:

[0062] Reference Figures 11-14 As shown, the difference between this embodiment and Embodiment 2 is that the sealing assembly is a split sealing component, specifically including a first sealing cover 23 and a second sealing cover 24; Both the first sealing cover 23 and the second sealing cover 24 are made of elastic insulating material and have an overall circular cover structure. Their edges are provided with arc transition edges to avoid scratching the inner wall of the adapter box 1 or the partition 11 during assembly.

[0063] The first sealing cover 23 is located inside the cable insertion cavity 13 and is detachably connected to the adapter box 1, and is used to block the first through hole 14; the second sealing cover 24 is located inside the optical fiber docking cavity 12 and is detachably connected to the partition 11, and is used to block the second through hole 15.

[0064] Reference Figures 11-14 As shown, the structure of the adapter box 1 is also different from that of Embodiment 2 in this embodiment.

[0065] Reference Figure 14 As shown, in this embodiment, the inner wall of the adapter box 1 is provided with a first frustum 18 protruding into the cable insertion cavity 13, and the first through hole 14 penetrates the first frustum 18; the first sealing cover 23 is sleeved on the end of the first frustum 18 to block the first through hole 14; the first frustum 18 and the adapter box 1 are integrally formed and are cylindrical, with its outer diameter slightly smaller than the inner diameter of the first sealing cover 23, to ensure that the first sealing cover 23 can be tightly sleeved on the end of the first frustum 18 to achieve precise positioning.

[0066] The partition 11 has a second frustum 19 protruding into the optical fiber docking cavity 12, and a second through hole 15 passes through the second frustum 19; the second sealing cap 24 is fitted onto the end of the second frustum 19 to block the second through hole 15. The second frustum 19 and the partition 11 are integrally formed, and its structure is symmetrical to the first frustum 18. It is also cylindrical, and its outer diameter is slightly smaller than the inner diameter of the second sealing cap 24.

[0067] By setting the first frustum 18 and the second frustum 19, precise positioning support is provided for the first sealing cover 23 and the second sealing cover 24, ensuring that the sealing cover can accurately seal the corresponding through hole and avoiding sealing failure due to sealing cover displacement.

[0068] Reference Figure 12 As shown, in one embodiment, the fiber optic connector sealing and docking device further includes a brush 8, which is fixed on the partition plate 11 and located inside the cable insertion cavity 13. The brush 8 is arranged around the second through hole 15 with the bristles of the brush 8 being evenly distributed in a ring, which can fully cover the area around the second through hole 15.

[0069] During fiber optic splicing, the inner ring 4 passes through the first through hole 14, the brush 8, and the second through hole 15 in sequence. The bristles of the brush 8 are in close contact with the outer wall of the inner ring 4. During the insertion of the inner ring 4, the bristles can thoroughly wipe its outer wall to remove dust from the surface and effectively remove dust and impurities carried on the outer wall of the inner ring 4, preventing dust from entering the fiber optic splicing cavity 12 with the inner ring 4 and contaminating the fiber optic splicing end face.

[0070] The process of connecting the first and second optical fibers using a fiber optic connector sealing and docking device with a split sealing element is as follows: The first step is to connect the first male connector 32 to the external first optical fiber and insert it into the optical fiber docking cavity 12 of the adapter box 1; The second step involves connecting the second male connector 33 to the external second optical fiber. Holding the second male connector 33, insert it into the guide hole 41 of the inner ring 4. Push the inner ring 4 to pass through the guide ring 52, the first through hole 14, and the second through hole 15 in sequence. When the inner ring 4 passes through the first through hole 14, push the first sealing cover 23 inward to disengage it from the first truncated cone 18. Then, push the second sealing cover 24 inward through the second through hole 15 to disengage it from the second truncated cone 19. Continue pushing the inner ring 4 until the needle 34 punctures the elastic membrane 43, and the connecting ring 42 is fitted onto the female opening 31. At the same time, the inner wall of the outer ring 6 is fitted onto the outer wall of the connector 5. The third step is to push the second male head 33 inward, and the second male head 33 will dock with the female head 31.

[0071] Example 4:

[0072] Please see Figure 15 As shown, compared with Embodiment 3, this embodiment omits the design of the first frustum 18, and the first sealing cover 23 is detachably connected to the connector 5 to achieve the sealing of the first through hole 14.

[0073] The outer diameter of the connector 5 matches the inner diameter of the first through hole 14, and the end of the connector 5 passes through the first through hole 14 and extends into the cable insertion cavity 13; the first sealing cover 23 is disposed in the cable insertion cavity 13, and its inner diameter matches the outer diameter of the connector 5. The first sealing cover 23 is sleeved on the connector 5 to block the connector 5, thereby blocking the first through hole 14 and achieving the sealing of the cable insertion cavity 13.

[0074] The specific embodiments described above do not constitute a limitation on the scope of protection of this application. Those skilled in the art should understand that various modifications, combinations, sub-combinations, and substitutions can be made according to design requirements and other factors. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the scope of protection of this application.

Claims

1. A fiber optic connector sealing and mating device, characterized in that, include: The adapter box (1) has an inner cavity, and a partition (11) is provided in the inner cavity. The partition (11) divides the inner cavity into an optical fiber docking cavity (12) and a cable insertion cavity (13). The external environment of the adapter box (1), the optical fiber docking cavity (12) and the cable insertion cavity (13) are connected in sequence. The sealing assembly (2) is disposed in the inner cavity and is used to seal the optical fiber docking cavity (12) and the cable insertion cavity (13). The fiber optic connector (3) includes a female connector (31), a first male connector (32), and a second male connector (33). The female connector (31) is located inside the fiber optic docking cavity (12). The first male connector (32) is used to connect an external first optical fiber and is inserted into one end of the female connector (31). The second male connector (33) is used to connect an external second optical fiber. When the optical fibers are docked, the second male connector (33) passes through the fiber optic docking cavity (12), extends into the cable insertion cavity (13), and is inserted into the other end of the female connector (31).

2. The fiber optic connector sealing and mating device according to claim 1, characterized in that, The outer wall of the adapter box (1) is provided with a first through hole (14) that communicates with the cable insertion cavity (13), and the partition (11) is provided with a second through hole (15) that communicates with the optical fiber docking cavity (12) and the cable insertion cavity (13). The sealing assembly (2) is used to close the first through hole (14) and the second through hole (15) to seal the optical fiber docking cavity (12) and the cable insertion cavity (13); When the optical fiber is connected, the second male connector (33) passes through the first through hole (14) and the second through hole (15) in sequence, and is inserted into the other end of the female connector (31).

3. The fiber optic connector sealing and mating device according to claim 2, characterized in that, The sealing assembly (2) is an integral seal, including a piston rod (21) and a seal (22) disposed on the piston rod (21). The outer wall of the adapter box (1) is provided with a socket that communicates with the cable insertion cavity (13), and the piston rod (21) is inserted into the socket; the sealing element (22) is located inside the cable insertion cavity (13), and its two outer walls are respectively attached to the partition (11) and the inner wall of the adapter box (1) to block the first through hole (14) and the second through hole (15).

4. The fiber optic connector sealing and mating device according to claim 3, characterized in that, The inner wall of the adapter box (1) is provided with a first boss (16) protruding into the cable insertion cavity (13), and the first through hole (14) penetrates the first boss (16). The end of the first boss (16) is provided with a first connecting surface. The partition (11) is provided with a second protrusion (17) protruding into the cable insertion cavity (13), and the second through hole (15) passes through the second protrusion (17). The end of the second protrusion (17) is provided with a second connecting surface. The sealing element (22) has a first sealing surface on one side that is parallel to the first connecting surface, and a second sealing surface on the other side that is parallel to the second connecting surface; The first sealing surface is used to fit the first connecting surface to block the first through hole (14); the second sealing surface is used to fit the second connecting surface to block the second through hole (15).

5. The fiber optic connector sealing and mating device according to claim 4, characterized in that, The first through hole (14) and the second through hole (15) are coaxially arranged; The axis of the piston rod (21) is perpendicular to the axes of the first through hole (14) and the second through hole (15); The first sealing surface and the second sealing surface are symmetrically arranged with respect to the axis of the piston rod (21), and both of them form an acute angle with the axis of the piston rod (21).

6. The fiber optic connector sealing and mating device according to claim 2, characterized in that, The sealing assembly (2) is a split-type sealing element, including a first sealing cover (23) and a second sealing cover (24); The first sealing cover (23) is located inside the cable insertion cavity (13) and is detachably connected to the adapter box (1) for sealing the first through hole (14); the second sealing cover (24) is located inside the optical fiber docking cavity (12) and is detachably connected to the partition (11) for sealing the second through hole (15).

7. The fiber optic connector sealing and mating device according to claim 6, characterized in that, The inner wall of the adapter box (1) is provided with a first truncated cone (18) protruding into the cable insertion cavity (13), and the first through hole (14) passes through the first truncated cone (18); the first sealing cover (23) is sleeved on the end of the first truncated cone (18) to block the first through hole (14). The partition (11) is provided with a second frustum (19) protruding into the optical fiber docking cavity (12), and the second through hole (15) penetrates the second frustum (19); the second sealing cap (24) is fitted onto the end of the second frustum (19) to block the second through hole (15).

8. The fiber optic connector sealing and mating device according to any one of claims 3-7, characterized in that, It also includes an inner ring (4), which has a guide hole (41). The second male head (33) is inserted into the guide hole (41) and is slidably disposed along the axial direction of the guide hole (41); The inner ring (4) is provided with a connecting ring (42) at its end; when the optical fiber is connected, the connecting ring (42) is sleeved on the female port (31), and the second male head (33) passes through the inner ring (4) and is inserted into the female port (31).

9. The fiber optic connector sealing and mating device according to claim 8, characterized in that, It also includes a connector (5), which includes an annular plate (51) and a guide ring (52) disposed at the inner end of the annular plate (51). The guide ring (52) is inserted into the first through hole (14), and the outer wall of the annular plate (51) is in contact with the outer wall of the adapter box (1); When the optical fiber is connected, the inner ring (4) passes through the guide ring (52).

10. The fiber optic connector sealing and mating device according to claim 9, characterized in that, It also includes an outer ring (6) and a sealing ring (7) disposed on the inner wall of the outer ring (6); The inner ring (4) is inserted into the sealing ring (7) and slides along the axial direction of the outer ring (6); When the optical fiber is connected, the inner wall of the outer sleeve (6) is fitted onto the outer wall of the connector (5) to achieve a radial seal between the connector (5) and the inner sleeve (4).

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