Light emitting fiber optic joint

By designing components such as protective sleeves and tension sleeves, and utilizing a combination structure of unidirectional conical elastic cylinders and compression elastic strips, the problem of poor contact caused by gravity pulling of the light-emitting fiber optic connectors is solved, enabling convenient positioning and maintenance of single optical fibers and simplifying the docking process.

CN120577924BActive Publication Date: 2026-07-24WANG ON GRP LTD +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
WANG ON GRP LTD
Filing Date
2025-07-10
Publication Date
2026-07-24

AI Technical Summary

Technical Problem

Existing optical fiber connectors are prone to pulling when falling under their own weight, leading to poor contact. Traditional square connectors are troublesome to connect and cannot be adjusted or repaired individually.

Method used

It adopts components such as protective sleeve, tension sleeve, fiber optic connector sleeve and fiber optic splice sleeve, and utilizes a combination structure of unidirectional conical elastic cylinder and extrusion elastic strip to increase the extrusion force and friction of fiber optic connector, and with the detachable design, it can realize the positioning and maintenance of single fiber optic cable.

Benefits of technology

It effectively prevents fiber optic connectors from detaching due to gravity, simplifies the connection process, allows for independent maintenance of individual optical fibers, and reduces the hassle of overall disassembly and reconnection.

✦ Generated by Eureka AI based on patent content.

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Abstract

The present application relates to the field of optical fiber joint, specifically to a light-emitting optical fiber joint, which comprises a protective sleeve, a tension sleeve movably sleeved on the inner side wall surface of the protective sleeve, an optical fiber joint movably sleeved on the inner side wall surface of the protective sleeve and the outer side surface of the tension sleeve, and an optical fiber joint barrel detachably mounted on one end of the optical fiber joint and arranged on the outer side surface of the tension sleeve. Two optical fiber joints are extended out through the optical fiber joint barrel and elastically adsorbed on the surface of the optical fiber joint by cooperating with the one-way conical elastic barrel inside the optical fiber joint barrel. When the optical fiber joint moves along the inclined surface of the extrusion elastic strip, the extrusion elastic strip moves to the direction of the one-way conical elastic barrel, so that the optical fiber joint can move in one direction. When the optical fiber joint is pulled and dragged due to its own gravity, the effect that the optical fiber joint is separated from the one-way conical elastic barrel due to its own dragging is greatly reduced.
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Description

Technical Field

[0001] This invention relates to the field of fiber optic connector technology, and in particular to light-emitting fiber optic connectors. Background Technology

[0002] The light-emitting principle of quartz light-emitting optical fiber is based on the principle of total internal reflection and the fluorescence effect. When a light signal enters the fiber, due to the special internal structure of the fiber, the light undergoes multiple total internal reflections, thus achieving long-distance transmission. The coating material of the fiber has a fluorescence effect, which can emit visible or invisible light when excited by light of a specific wavelength. Quick connectors are commonly used in both multi-core and single-core optical fibers. Quick connectors do not require fusion splicing and can be used for fiber extension, conversion, etc. The working principle of the light-emitting optical fiber connector is based on the principle of total internal reflection of optical fiber. When the light source passes through the reflector, it forms a beam of nearly parallel light. The color filter changes the color of the beam, turning it into colored light. The colored light enters the optical fiber and is transmitted to the predetermined location along the path of the optical fiber.

[0003] A patent with publication number CN 116500729 B discloses an optical fiber connector, including a plug and a tail. The tail is a shell with a hollow space. A baffle with a through hole is provided inside the tail shell. A clamping mechanism for fixing the optical fiber is provided inside the tail on the side of the baffle away from the plug. The clamping mechanism includes a ring and an inner sleeve. Multiple sets of racks are connected to the ring axially, and the ends of the racks are arc-shaped and connected to toothed bows. This invention has a novel structure. The arc shape and elasticity of the toothed bows allow the clamping mechanism to deform within a small range. Simultaneously, the conical sleeve slides and engages with the internal racks, and the limited space of the ring restricts the movement, allowing the tail of the optical fiber to bend within an appropriate range, thereby protecting the optical fiber connector tail from breakage.

[0004] Currently, most fiber optic quick connectors on the market have a square opening, which provides a stable positioning function. Due to the high requirements for fiber optic splicing, a fiber optic protective sleeve clamping structure is designed at the end of the quick connector to facilitate splicing and prevent accidental fiber pullout. Individual square connectors have a high strength design. However, a single luminescent fiber contains multiple thin fibers. To extend the length of the illumination fiber, the fiber connectors need to be spliced. Since luminescent illumination fibers do not require fusion welding, only the ends of the luminescent fibers need to be trimmed and aligned, and the ends are used to align and fix the interfaces of the other fiber optic cables. However, luminescent fibers... For outdoor use, the downward pull of the optical fiber itself can strain the splice joints, easily causing them to loosen and resulting in poor contact. Since the entire optical fiber emits light, if one fiber fails to emit light due to poor contact, the traditional square connector requires disassembling the entire connector and reconnecting multiple optical fibers, which increases the complexity. Furthermore, disassembling and reconnecting previously intact fibers can also cause previously good connections to become faulty, making it impossible to adjust and repair individual fibers one by one. Summary of the Invention

[0005] Therefore, the technical problem to be solved by the present invention is to overcome the problem that when light-emitting optical fibers that have not been fused are reconnected in the prior art, their own weight causes them to fall and pull on the light-emitting optical fiber connectors, resulting in poor contact. In addition, traditional square connectors are connected and disassembled in a unified manner, which increases the trouble to a certain extent. Moreover, disassembling previously intact optical fibers and reconnecting them can also cause poor contact in connectors that were in good contact, making it impossible to adjust and repair individual optical fibers one by one.

[0006] To solve the above-mentioned technical problems, the present invention provides a light-emitting fiber optic connector, including a protective housing and a tension sleeve movably fitted on the inner wall of the protective housing, a fiber optic connector movably fitted on the inner wall of the protective housing and the outer surface of the tension sleeve, a fiber optic connector tube detachably installed on one end of the fiber optic connector, and the fiber optic connector tube being positioned on the outer surface of the tension sleeve, and a fiber optic splice sleeve movably fitted on the other end of the fiber optic connector tube, which is also movably fitted on the outer surface of the fiber optic connector, a splice hook fixedly connected to one end of the fiber optic splice sleeve, which is movably fitted on the inner wall of the snap-fit ​​groove, a unidirectional conical elastic cylinder fixedly connected to the inner wall of the fiber optic connector tube, which is movably fitted on the outer surface of the fiber optic connector, and a compression elastic strip movably attached to the inner wall of the unidirectional conical elastic cylinder.

[0007] In one embodiment of the present invention, a recessed groove is provided on the outer surface of the tension sleeve, which is movably adjustable on the outer surface of the fiber optic connector cylinder and the fiber optic connector, and pull-back positioning claws are fixedly connected to the inner walls on both sides of the recessed groove.

[0008] In one embodiment of the present invention, a positioning base is fixedly connected to the inner wall of the recessed groove and disposed on the outer surface of the pull-back positioning claw, and a downward pressing semi-circular head is movably sleeved on the outer surface of the positioning base and sleeved on the outer surface of the optical fiber connector.

[0009] In one embodiment of the present invention, staggered extrusion grooves are provided on both sides of the pressing semi-circular head and are movably sleeved on the outer surface of one end of the pull-back positioning claw, and a pressing positioning plate is fixedly connected to the outer surface of one end of the pressing semi-circular head.

[0010] In one embodiment of the present invention, the outer surface of the pressure positioning plate is movably attached to the outer surface of the tension sleeve, and a conical extrusion cylinder is movably sleeved on the outer surfaces of the tension sleeve and the pressure positioning plate.

[0011] In one embodiment of the present invention, a positioning latch is movably sleeved on the outer surface of the optical fiber connector, and the outer surface of the positioning latch is movably overlapped with the inner wall of the protective housing.

[0012] In one embodiment of the present invention, the inner wall of the protective sleeve is movably overlapped with the outer surface of the conical extrusion cylinder, and the extrusion sleeve is movably fitted onto the outer surface of the protective sleeve.

[0013] In one embodiment of the present invention, the pull-back positioning claw is made of TPEE polyether ester elastomer, and one end of the pull-back positioning claw is provided with a barb that is movably sleeved on the inner wall of the interlaced extrusion groove.

[0014] In one embodiment of the present invention, the material of the extrusion elastic strip is silicone, and an extrusion cavity is provided between the extrusion elastic strip and the one-way conical elastic cylinder.

[0015] In one embodiment of the present invention, an outer extension plate is provided on the outer surface of the optical fiber connector tube and the optical fiber mating sleeve, and a threaded rod is threadedly and movably sleeved on the outer surface of the outer extension plate.

[0016] The technical solution of the present invention has the following advantages compared with the prior art:

[0017] The light-emitting fiber optic connector of this invention extends two fiber optic connectors through a fiber optic connector cylinder. When the unidirectional conical elastic cylinder inside the fiber optic connector cylinder elastically adheres to the surface of the fiber optic connector, as the fiber optic connector moves along the inclined surface of the compression elastic strip, the compression elastic strip moves towards the unidirectional conical elastic cylinder, allowing the fiber optic connector to move in one direction. When the fiber optic connector is pulled and dragged due to its own weight, the fiber optic connector moves in the opposite direction along the unidirectional conical elastic cylinder. At this time, under the compression of the soft compression elastic strip, the compression elastic strip will be dragged and deformed towards the fiber optic connector, thereby increasing the compression force and friction between the fiber optic connector and the unidirectional conical elastic cylinder, greatly reducing the effect of the fiber optic connector detaching from the unidirectional conical elastic cylinder due to its own dragging.

[0018] The light-emitting fiber optic connector of the present invention is further improved by having employees cut off the excess fiber optic connector protruding from the inside of the fiber optic connector tube and clean the cut surface of the fiber optic connector. Then, the fiber optic connector tube and the fiber optic docking sleeve are docked together, and one end of the docking hook is inserted through the fiber optic connector tube and inserted into the inside of the docking groove to firmly position the fiber optic connector tube and the fiber optic docking sleeve together. Finally, the fiber optic connector tube and the fiber optic docking sleeve are fixed and positioned by passing a threaded rod through the outer expansion plate.

[0019] The light-emitting fiber optic connector of this invention involves placing the fiber optic connector and fiber optic connector tube into the recessed groove, while simultaneously using the positioning base inside the recessed groove to overlap the surface of the fiber optic connector and to align and position the individual fibers of the two fiber optic connectors. Then, the downward pressing semi-circular head is inserted into the recessed groove, and the downward pressing semi-circular head pushes and squeezes one end of the pull-back positioning claw to both sides. When the downward pressing semi-circular head extends through the pull-back positioning claw to the inner wall of the recessed groove, the staggered extrusion groove on the outer surface of the downward pressing semi-circular head aligns with the barb on one end of the pull-back positioning claw. The deformed downward pressing semi-circular head is used to press and position the staggered extrusion groove on the top surfaces of both sides of the downward pressing semi-circular head, so that the fiber optic connector can be firmly positioned on the positioning base and the inner wall of the downward pressing semi-circular head.

[0020] The light-emitting fiber optic connector of this invention uses a tapered extrusion cylinder fitted onto the outer surface of the pressure positioning plate and the tension sleeve to effectively position and fix the pressure positioning plate and the tension sleeve. When repairing a single fiber optic connector later, it is only necessary to peel the pressure semi-circular head on the surface of the pressure positioning plate out of the recessed groove to adjust and repair the single fiber optic connector that is not emitting light. There is no need to disassemble the fiber optic connectors together, which will not cause other intact fiber optic connectors to have a loose connection and thus prevent the interface from breaking. Attached Figure Description

[0021] To make the content of this invention easier to understand, the invention will be further described in detail below with reference to specific embodiments and accompanying drawings.

[0022] Figure 1 This is a perspective view of the present invention;

[0023] Figure 2 This is a three-dimensional view of the protective casing in this invention.

[0024] Figure 3 This is a three-dimensional cross-sectional view of the tension sleeve in this invention;

[0025] Figure 4 This is a three-dimensional cross-sectional view of the fiber optic head tube in this invention;

[0026] Figure 5 This is a three-dimensional view of the unfolded optical fiber head tube in this invention;

[0027] Figure 6 This is a three-dimensional cross-sectional view of the unidirectional conical elastic cylinder of the present invention;

[0028] Figure 7 This is a three-dimensional cross-sectional view of the extrusion elastic strip in this invention;

[0029] Figure 8 This is an exploded perspective view of the tension sleeve in this invention;

[0030] Figure 9 This is a three-dimensional cross-sectional view of the tension sleeve in this invention.

[0031] Explanation of reference numerals in the accompanying drawings: 11. Protective sleeve; 111. Extrusion sleeve; 112. Positioning lock; 12. Tension sleeve; 121. Recessed groove; 122. Pull-back positioning claw; 123. Positioning base; 124. Downward pressing semi-circular head; 125. Interlaced extrusion groove; 126. Downward pressing positioning plate; 127. Conical extrusion cylinder; 13. Fiber optic connector; 14. Fiber optic connector cylinder; 141. Fiber optic splicing sleeve; 142. Snap-fit ​​groove; 143. Splicing hook; 144. Outer extension plate; 145. Threaded rod; 146. One-way conical elastic cylinder; 147. Extrusion elastic strip. Detailed Implementation

[0032] The present invention will be further described below with reference to the accompanying drawings and specific embodiments, so that those skilled in the art can better understand and implement the present invention. However, the embodiments described are not intended to limit the present invention.

[0033] Please see Figure 1 - Figure 9The present invention provides a light-emitting fiber optic connector, including a protective housing 11 and a tension sleeve 12 movably sleeved on the inner wall of the protective housing 11, a fiber optic connector 13 movably sleeved on the inner wall of the protective housing 11 and the outer surface of the tension sleeve 12, a fiber optic connector tube 14 detachably installed on one end of the fiber optic connector 13, and the fiber optic connector tube 14 is positioned on the outer surface of the tension sleeve 12. A fiber optic docking sleeve 141 movably sleeved on the other end of the fiber optic connector tube 14 is movably sleeved on the outer surface of the fiber optic connector 13. A docking hook 143 movably sleeved on the inner wall of the snap-fit ​​groove 142 is fixedly connected to one end of the fiber optic docking sleeve 141. A one-way conical elastic cylinder 146 movably sleeved on the outer surface of the fiber optic connector 13 is fixedly connected to the inner wall of the fiber optic connector tube 14. A compression elastic strip 147 movably adheres to the outer surface of the fiber optic connector 13 is provided on the inner wall of the one-way conical elastic cylinder 146.

[0034] Two fiber optic connectors 13 extend outward through the fiber optic connector cylinder 14. When the unidirectional conical elastic cylinder 146 inside the fiber optic connector cylinder 14 elastically adheres to the surface of the fiber optic connector 13, as the fiber optic connector 13 moves along the inclined surface of the compression elastic strip 147, the compression elastic strip 147 moves towards the unidirectional conical elastic cylinder 146, allowing the fiber optic connector 13 to move in one direction. When the fiber optic connector 13 is pulled and dragged due to its own weight, the fiber optic connector 13 moves in the opposite direction along the unidirectional conical elastic cylinder 146. At this time, under the compression of the soft compression elastic strip 147, the compression elastic strip 147 will be dragged and deformed towards the fiber optic connector 13, thereby increasing the compression force and friction between the fiber optic connector 13 and the unidirectional conical elastic cylinder 146, greatly reducing the effect of the fiber optic connector 13 detaching from the unidirectional conical elastic cylinder 146 due to its own dragging.

[0035] Furthermore, such as Figure 1 - Figure 2 and Figure 4 - Figure 8 As shown, the extrusion elastic strip 147 is made of silicone. An extrusion cavity is provided between the extrusion elastic strip 147 and the unidirectional conical elastic cylinder 146. An outer expansion plate 144 is provided on the outer surface of the fiber optic connector cylinder 14 and the fiber optic docking sleeve 141. A threaded rod 145 is threadedly and movably sleeved on the outer surface of the outer expansion plate 144.

[0036] Then, the excess fiber optic connector 13 protruding from the inside of the fiber optic connector tube 14 is cut off by the employees, and the cut surface of the fiber optic connector 13 is cleaned. Then, the fiber optic connector tube 14 and the fiber optic docking sleeve 141 are docked together. One end of the docking claw 143 is passed through the fiber optic connector tube 14 and inserted into the docking groove 142 to firmly position the fiber optic connector tube 14 and the fiber optic docking sleeve 141 together. Finally, the threaded rod 145 passes through the outer expansion plate 144 to fix and position the fiber optic connector tube 14 and the fiber optic docking sleeve 141.

[0037] Furthermore, such as Figure 1 - Figure 9 As shown, the outer surface of the tension sleeve 12 is provided with a recessed groove 121 that is movably adjusted on the outer surfaces of the fiber optic connector sleeve 14 and the fiber optic connector 13. A pull-back positioning claw 122 is fixedly connected to the inner walls on both sides of the recessed groove 121. A positioning base 123 is fixedly connected to the inner wall of the recessed groove 121 and is disposed on the outer surface of the pull-back positioning claw 122. A downward pressing semi-circular head 124 is movably sleeved on the outer surface of the positioning base 123 and is fitted onto the outer surface of the fiber optic connector 13. Interlaced extrusion grooves 125 are provided on both sides of the downward pressing semi-circular head 124 and are movably sleeved on the outer surface of one end of the pull-back positioning claw 122. A downward pressing positioning plate is fixedly connected to the outer surface of one end of the downward pressing semi-circular head 124. 126, the outer surface of the pressure positioning plate 126 is movably attached to the outer surface of the tension sleeve 12, the outer surface of the tension sleeve 12 and the pressure positioning plate 126 is movably sleeved with a tapered extrusion cylinder 127, the outer surface of the fiber optic connector 13 is movably sleeved with a positioning lock 112, the outer surface of the positioning lock 112 is movably overlapped with the inner wall of the protective housing 11, the inner wall of the protective housing 11 is movably overlapped with the outer surface of the tapered extrusion cylinder 127, and the outer surface of the protective housing 11 is movably sleeved with an extrusion housing 111, the material of the pull-back positioning claw 122 is TPEE polyether ester elastomer, and one end of the pull-back positioning claw 122 is provided with a barb that is movably sleeved on the inner wall of the staggered extrusion groove 125.

[0038] The fiber optic connector 13 and fiber optic connector tube 14 are placed inside the recessed groove 121. At the same time, the positioning base 123 inside the recessed groove 121 overlaps the surface of the fiber optic connector 13, and the single fiber of the two fiber optic connectors 13 is positioned and connected. Then, the pressing semi-circular head 124 is inserted into the recessed groove 121. The pressing semi-circular head 124 pushes and squeezes one end of the pull-back positioning claw 122 to both sides. When the pressing semi-circular head 124 extends through the pull-back positioning claw 122 to the inner wall of the recessed groove 121, the staggered extrusion groove 125 on the outer surface of the pressing semi-circular head 124 is connected with the barb on one end of the pull-back positioning claw 122. The deformed pressing semi-circular head 124 is used to press down and position the staggered extrusion groove 125 on the top surfaces of both sides of the pressing semi-circular head 124, so that the fiber optic connector 13 can be firmly positioned on the positioning base 123 and the inner wall of the pressing semi-circular head 124.

[0039] Furthermore, the conical extrusion cylinder 127 is sleeved on the outer surface of the pressure positioning plate 126 and the tension sleeve 12 to effectively position and fix the pressure positioning plate 126 and the tension sleeve 12. When repairing a single fiber optic connector 13 later, it is only necessary to peel the pressure semi-circular head 124 on the surface of the pressure positioning plate 126 out of the recessed groove 121 to adjust and repair the non-emitting single fiber optic connector 13. There is no need to disassemble the fiber optic connectors uniformly, which will not cause other intact fiber optic connectors 13 to have their interfaces broken due to loosening of the snap-fit. This avoids the traditional extrusion device that uses a snap-fit ​​locking method for docking, which positions and docks the emitting fiber as a whole. If the snap-fit ​​locking becomes loose, it will cause multiple emitting fiber optic connectors to have their interfaces broken. Moreover, outdoor emitting fiber optic connectors need to be recycled. Longer emitting fiber optic connectors are inconvenient to recycle in sections. The traditional snap-fit ​​method is inconvenient to disassemble and can only be cut directly at the interface, which will cause a certain degree of waste.

[0040] Working principle: Multiple wound fiber optic connectors 13 are separated and passed through the interior of the positioning lock 112, allowing the fiber optic connectors 13 to expand at the mating positions, reducing friction between them. Two fiber optic connectors 13 are then extended through the fiber optic connector cylinder 14. When the unidirectional conical elastic cylinder 146 inside the fiber optic connector cylinder 14 elastically adheres to the surface of the fiber optic connector 13, as the fiber optic connector 13 moves along the inclined surface of the compression elastic strip 147, the compression elastic strip 147 moves towards the unidirectional conical elastic cylinder 146, allowing the fiber optic connector 13 to move unidirectionally. When the fiber optic connector 13 is pulled and dragged due to its own weight, it moves in the opposite direction along the unidirectional conical elastic cylinder 146. At this time, under the compression of the soft compression elastic strip 147, the compression elastic strip 147... The fiber optic connector 13 will be dragged and deformed in the direction of the fiber optic connector 13, thereby increasing the squeezing force and friction between the fiber optic connector 13 and the one-way conical elastic cylinder 146, greatly reducing the effect of the fiber optic connector 13 being pulled out of the one-way conical elastic cylinder 146 due to its own dragging. Then, the excess fiber optic connector 13 protruding from the fiber optic connector cylinder 14 is cut off by the employees, and the cut surface of the fiber optic connector 13 is cleaned. Then, the fiber optic connector cylinder 14 and the fiber optic docking sleeve 141 are docked together. One end of the docking claw 143 is inserted through the fiber optic connector cylinder 14 and inserted into the docking groove 142 to firmly position the fiber optic connector cylinder 14 and the fiber optic docking sleeve 141 together. Finally, the threaded rod 145 passes through the outer expansion plate 144 to fix and position the fiber optic connector cylinder 14 and the fiber optic docking sleeve 141.The fiber optic connector 13 and fiber optic connector tube 14 are placed into the recessed groove 121. Simultaneously, the positioning base 123 inside the recessed groove 121 overlaps the surface of the fiber optic connector 13, and the individual fibers of the two fiber optic connectors 13 are aligned and positioned. Then, the downward-pressing semi-circular head 124 is inserted into the recessed groove 121. The downward-pressing semi-circular head 124 pushes and squeezes one end of the pull-back positioning claw 122 to both sides. When the downward-pressing semi-circular head 124 extends through the pull-back positioning claw 122 to the inner wall of the recessed groove 121, the staggered pressing groove 125 on the outer surface of the downward-pressing semi-circular head 124 aligns with the barb on one end of the pull-back positioning claw 122. The deformed downward-pressing semi-circular head 124 presses down and positions the staggered pressing groove 125 on the top surfaces of both sides of the downward-pressing semi-circular head 124, ensuring that the fiber optic connector 13 is firmly positioned on the positioning base 123 and the lower... The effect is achieved by pressing the semi-circular head 124 on the inner wall surface, and then fitting the conical extrusion cylinder 127 onto the outer surface of the pressing positioning plate 126 and the tension sleeve 12, effectively positioning and fixing the pressing positioning plate 126 and the tension sleeve 12. Later, when repairing a single fiber optic connector 13, it is only necessary to peel the semi-circular head 124 from the recessed groove 121 on the surface of the pressing positioning plate 126 to adjust and repair the non-emitting single fiber optic connector 13. There is no need to disassemble the fiber optic connectors uniformly, preventing other intact fiber optic connectors 13 from experiencing interface disconnection due to loosening of the connection. Later, the protective sleeve 11 is connected to the surfaces of the tension sleeve 12, fiber optic connector 13, and positioning lock 112 to limit the connection point of the fiber optic connector 13. Then, the extrusion sleeve 111 passes through the surface of the protective sleeve 11 to fix the two protective sleeves 11 together.

[0041] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the scope of protection of this invention.

Claims

1. A light-emitting fiber optic connector, comprising a protective housing (11) and a tension sleeve (12) movably fitted onto the inner wall of the protective housing (11), a fiber optic connector (13) movably fitted onto the inner wall of the protective housing (11) and the outer surface of the tension sleeve (12), and a fiber optic connector tube (14) detachably mounted on one end of the fiber optic connector (13), wherein the fiber optic connector tube (14) is positioned on the outer surface of the tension sleeve (12), characterized in that: The other end of the fiber optic connector tube (14) is movably sleeved with a fiber optic docking sleeve (141) that is movably sleeved on the outer surface of the fiber optic connector (13). One end of the fiber optic docking sleeve (141) is fixedly connected with a docking hook (143) that is movably sleeved on the inner wall of the snap-fit ​​groove (142). The inner wall of the fiber optic connector tube (14) is fixedly connected with a unidirectional conical elastic cylinder (146) that is movably sleeved on the outer surface of the fiber optic connector (13). The inner wall of the unidirectional conical elastic cylinder (146) is provided with a compression elastic strip (147) that is movably attached to the outer surface of the fiber optic connector (13). The outer surface of the tension sleeve (12) is provided with an indented groove (121) that can be adjusted to the outer surface of the fiber optic connector sleeve (14) and the fiber optic connector (13). Pull-back positioning claws (122) are fixedly connected to the inner walls on both sides of the indented groove (121). The inner wall of the recessed groove (121) is fixedly connected to a positioning base (123) disposed on the outer surface of the pull-back positioning claw (122), and a downward pressing semi-circular head (124) is movably sleeved on the outer surface of the positioning base (123) and sleeved on the outer surface of the fiber optic connector (13). The two sides of the pressing semi-circular head (124) are provided with staggered extrusion grooves (125) that are movably sleeved on the outer surface of one end of the pull-back positioning claw (122). A pressing positioning plate (126) is fixedly connected to the outer surface of one end of the pressing semi-circular head (124). The outer surface of the pressure positioning plate (126) is movably attached to the outer surface of the tension sleeve (12), and a conical extrusion cylinder (127) is movably sleeved on the outer surfaces of the tension sleeve (12) and the pressure positioning plate (126).

2. The light-emitting fiber optic connector according to claim 1, characterized in that: The outer surface of the fiber optic connector (13) is movably fitted with a positioning latch (112), and the outer surface of the positioning latch (112) is movably overlapped with the inner wall of the protective housing (11).

3. The light-emitting fiber optic connector according to claim 1, characterized in that: The inner wall of the protective sleeve (11) is movably overlapped on the outer surface of the conical extrusion cylinder (127), and the outer surface of the protective sleeve (11) is movably fitted with the extrusion sleeve (111).

4. The light-emitting fiber optic connector according to claim 2, characterized in that: The material of the pull-back positioning claw (122) is TPEE polyether ester elastomer, and one end of the pull-back positioning claw (122) is provided with a barb that is movably sleeved on the inner wall of the interlaced extrusion groove (125).

5. The light-emitting fiber optic connector according to claim 1, characterized in that: The extrusion elastic strip (147) is made of silicone, and an extrusion cavity is provided between the extrusion elastic strip (147) and the one-way conical elastic cylinder (146).

6. The light-emitting fiber optic connector according to claim 1, characterized in that: An outer extension plate (144) is provided on the outer surface of the fiber optic connector tube (14) and the fiber optic docking sleeve (141), and a threaded rod (145) is threadedly and movably sleeved on the outer surface of the outer extension plate (144).